Isuzu KB P190. Manual - part 947

Automatic Transmission – 4L60E – Electrical Diagnosis  

Page 7C2–2 

4

 

Diagnostics ...........................................................................................................................................27

 

4.1

 

Introduction .......................................................................................................................................................... 27

 

4.2

 

Basic Knowledge Required................................................................................................................................. 27

 

4.3

 

Diagnostic Precautions ....................................................................................................................................... 27

 

4.4

 

Preliminary Checks.............................................................................................................................................. 28

 

4.5

 

Diagnostic Trouble Code Tables ........................................................................................................................ 29

 

Multiple DTCs Fault Condition............................................................................................................................ 29

 

4.6

 

Diagnostic Trouble Code Definitions ................................................................................................................. 29

 

Type A – Emission Related DTCs....................................................................................................................... 29

 

Type B – Emission Related DTCs....................................................................................................................... 30

 

Conditions for Clearing Type A or Type B DTCs .............................................................................................. 30

 

Type C – Non-emission Related DTCs ............................................................................................................... 30

 

Conditions for Clearing Type C DTCs .............................................................................................................. 30

 

Current DTCs........................................................................................................................................................ 30

 

History DTCs ........................................................................................................................................................ 30

 

4.7

 

Diagnostic System Check ................................................................................................................................... 30

 

Description ........................................................................................................................................................... 30

 

Test Description................................................................................................................................................... 31

 

4.8

 

Diagnostic Trouble Code List ............................................................................................................................. 31

 

4.9

 

DTC P0218 – Transmission Fluid Overtemperature.......................................................................................... 33

 

DTC Description................................................................................................................................................... 33

 

Circuit Description............................................................................................................................................... 33

 

Conditions for Running the DTC ........................................................................................................................ 33

 

Conditions for Setting the DTC........................................................................................................................... 33

 

Action Taken When the DTC Sets ...................................................................................................................... 33

 

Conditions for Clearing the DTC ........................................................................................................................ 34

 

Diagnostic Aids.................................................................................................................................................... 34

 

Test Description................................................................................................................................................... 34

 

DTC P0218 Diagnostic Table............................................................................................................................... 34

 

4.10

 

DTC P0562 – System Voltage Low ..................................................................................................................... 35

 

DTC Description................................................................................................................................................... 35

 

Circuit Description............................................................................................................................................... 35

 

Conditions for Running the DTC ........................................................................................................................ 36

 

Conditions for Setting the DTC........................................................................................................................... 36

 

Action Taken When the DTC Sets ...................................................................................................................... 36

 

Conditions for Clearing the DTC ........................................................................................................................ 36

 

Diagnostic Aids.................................................................................................................................................... 36

 

Test Description................................................................................................................................................... 36

 

DTC P0562 Diagnostic Table............................................................................................................................... 36

 

4.11

 

DTC P0563 – System Voltage High..................................................................................................................... 38

 

DTC Description................................................................................................................................................... 38

 

Circuit Description............................................................................................................................................... 38

 

Conditions for Running the DTC ........................................................................................................................ 38

 

Conditions for Setting the DTC........................................................................................................................... 39

 

Action Taken When the DTC Sets ...................................................................................................................... 39

 

Conditions for Clearing the DTC ........................................................................................................................ 39

 

Diagnostic Aids.................................................................................................................................................... 39

 

Test Description................................................................................................................................................... 39

 

DTC P0563 Diagnostic Table............................................................................................................................... 39

 

4.12

 

DTC P0601 to P0604 or P1621 – TCM Malfunction............................................................................................ 41

 

DTC Description................................................................................................................................................... 41

 

Circuit Description............................................................................................................................................... 41

 

Conditions for Running the DTC ........................................................................................................................ 41

 

Conditions for Setting the DTC........................................................................................................................... 41

 

Action Taken When the DTC Sets ...................................................................................................................... 42

 

Conditions for Clearing the DTC ........................................................................................................................ 42

 

Test Description................................................................................................................................................... 42

 

DTC P0601 to P0604 or P1621 Diagnostic Table ............................................................................................... 42

 

4.13

 

DTC P0711 to P0713 – Transmission Fluid Temperature Sensor .................................................................... 43

 

DTC Description................................................................................................................................................... 43

 

Automatic Transmission – 4L60E – Electrical Diagnosis  

Page 7C2–3 

Circuit Description............................................................................................................................................... 43

 

Conditions for Running the DTC ........................................................................................................................ 43

 

DTC P0711 ...................................................................................................................................................... 43

 

DTC P0712 ...................................................................................................................................................... 43

 

DTC P0713 ...................................................................................................................................................... 44

 

Conditions for Setting the DTC........................................................................................................................... 44

 

DTC P0711 ...................................................................................................................................................... 44

 

DTC P0712 ...................................................................................................................................................... 44

 

DTC P0713 ...................................................................................................................................................... 44

 

Action Taken When the DTC Sets ...................................................................................................................... 44

 

Conditions for Clearing the DTC ........................................................................................................................ 44

 

Diagnostic Aids.................................................................................................................................................... 45

 

Test Description................................................................................................................................................... 45

 

DTC P0711 to P0713 Diagnostic Table ............................................................................................................... 45

 

4.14

 

DTC P0719 – Brake Switch Circuit High Input (Stuck On)................................................................................ 47

 

DTC Description................................................................................................................................................... 47

 

Circuit Description............................................................................................................................................... 47

 

Conditions for Running the DTC ........................................................................................................................ 47

 

Conditions for Setting the DTC........................................................................................................................... 47

 

Action Taken When the DTC Sets ...................................................................................................................... 47

 

Conditions for Clearing the DTC ........................................................................................................................ 47

 

Diagnostic Aids.................................................................................................................................................... 48

 

Test Description................................................................................................................................................... 48

 

DTC P0719 Diagnostic Table............................................................................................................................... 48

 

4.15

 

DTC P0722 – Vehicle Speed Sensor Circuit Low Voltage................................................................................. 49

 

DTC Description................................................................................................................................................... 49

 

Circuit Description............................................................................................................................................... 49

 

Conditions for Running the DTC ........................................................................................................................ 49

 

Conditions for Setting the DTC........................................................................................................................... 49

 

Action Taken When the DTC Sets ...................................................................................................................... 50

 

Conditions for Clearing the DTC ........................................................................................................................ 50

 

Diagnostic Aids.................................................................................................................................................... 50

 

Test Description................................................................................................................................................... 50

 

DTC P0722 Diagnostic Table............................................................................................................................... 50

 

4.16

 

DTC P0723 – Vehicle Speed Sensor Circuit Intermittent .................................................................................. 52

 

DTC Description................................................................................................................................................... 52

 

Circuit Description............................................................................................................................................... 52

 

Conditions for Running the DTC ........................................................................................................................ 52

 

Conditions for Setting the DTC........................................................................................................................... 53

 

Action Taken When the DTC Sets ...................................................................................................................... 53

 

Conditions for Clearing the DTC ........................................................................................................................ 53

 

Diagnostic Aids.................................................................................................................................................... 53

 

Test Description................................................................................................................................................... 53

 

DTC P0723 Diagnostic Table............................................................................................................................... 54

 

4.17

 

DTC P0724 – Brake Switch Circuit Low Input (Stuck Off) ................................................................................ 55

 

DTC Description................................................................................................................................................... 55

 

Circuit Description............................................................................................................................................... 55

 

Conditions for Running the DTC ........................................................................................................................ 56

 

Conditions for Setting the DTC........................................................................................................................... 56

 

Action Taken When the DTC Sets ...................................................................................................................... 56

 

Conditions for Clearing the DTC ........................................................................................................................ 56

 

Diagnostic Aids.................................................................................................................................................... 56

 

Test Description................................................................................................................................................... 56

 

DTC P0724 Diagnostic Table............................................................................................................................... 56

 

4.18

 

DTC P0741 – Torque Converter Clutch System – Stuck Off............................................................................. 57

 

DTC Description................................................................................................................................................... 57

 

Circuit Description............................................................................................................................................... 57

 

Conditions for Running the DTC ........................................................................................................................ 58

 

Conditions for Setting the DTC........................................................................................................................... 58

 

Action Taken When the DTC Sets ...................................................................................................................... 58

 

Automatic Transmission – 4L60E – Electrical Diagnosis  

Page 7C2–4 

Conditions for Clearing the DTC ........................................................................................................................ 58

 

Diagnostic Aids.................................................................................................................................................... 58

 

Test Description................................................................................................................................................... 58

 

DTC P0741 Diagnostic Table............................................................................................................................... 59

 

4.19

 

DTC P0742 – Torque Converter Clutch System – Stuck On............................................................................. 60

 

DTC Description................................................................................................................................................... 60

 

Circuit Description............................................................................................................................................... 60

 

Conditions for Running the DTC ........................................................................................................................ 60

 

Conditions for Setting the DTC........................................................................................................................... 61

 

Action Taken When the DTC Sets ...................................................................................................................... 61

 

Conditions for Clearing the DTC ........................................................................................................................ 61

 

Diagnostic Aids.................................................................................................................................................... 61

 

Test Description................................................................................................................................................... 61

 

DTC P0742 Diagnostic Table............................................................................................................................... 61

 

4.20

 

DTC P0751 – 1-2 Shift Solenoid Valve Performance – No First or Fourth Gear ............................................. 63

 

DTC Description................................................................................................................................................... 63

 

Circuit Description............................................................................................................................................... 63

 

Conditions for Running the DTC ........................................................................................................................ 63

 

Conditions for Setting the DTC........................................................................................................................... 63

 

Action Taken When the DTC Sets ...................................................................................................................... 63

 

Conditions for Clearing the DTC ........................................................................................................................ 63

 

Diagnostic Aids.................................................................................................................................................... 64

 

Test Description................................................................................................................................................... 64

 

DTC P0751 Diagnostic Table............................................................................................................................... 64

 

4.21

 

DTC P0752 – 1-2 Shift Solenoid Valve Performance – No Second or Third Gear........................................... 65

 

DTC Description................................................................................................................................................... 65

 

Circuit Description............................................................................................................................................... 65

 

Conditions for Running the DTC ........................................................................................................................ 65

 

Conditions for Setting the DTC........................................................................................................................... 65

 

Action Taken When the DTC Sets ...................................................................................................................... 66

 

Conditions for Clearing the DTC ........................................................................................................................ 66

 

Diagnostic Aids.................................................................................................................................................... 66

 

Test Description................................................................................................................................................... 66

 

DTC P0752 Diagnostic Table............................................................................................................................... 66

 

4.22

 

DTC P0756 – 2-3 Shift Solenoid Valve Performance – No First or Second Gear ............................................ 68

 

DTC Description................................................................................................................................................... 68

 

Circuit Description............................................................................................................................................... 68

 

Conditions for Running the DTC ........................................................................................................................ 68

 

Conditions for Setting the DTC........................................................................................................................... 68

 

Action Taken When the DTC Sets ...................................................................................................................... 68

 

Conditions for Clearing the DTC ........................................................................................................................ 68

 

Diagnostic Aids.................................................................................................................................................... 69

 

Test Description................................................................................................................................................... 69

 

DTC P0756 Diagnostic Table............................................................................................................................... 69

 

4.23

 

DTC P0757 – 2-3 Shift Solenoid Valve Performance – No Third or Fourth Gear ............................................ 70

 

DTC Description................................................................................................................................................... 70

 

Circuit Description............................................................................................................................................... 70

 

Conditions for Running the DTC ........................................................................................................................ 71

 

Conditions for Setting the DTC........................................................................................................................... 71

 

Action Taken When the DTC Sets ...................................................................................................................... 71

 

Conditions for Clearing the DTC ........................................................................................................................ 71

 

Diagnostic Aids.................................................................................................................................................... 71

 

Test Description................................................................................................................................................... 71

 

DTC P0757 Diagnostic Table............................................................................................................................... 72

 

4.24

 

DTC P0787 – 3-2 Shift Solenoid Control Circuit Low Voltage .......................................................................... 73

 

DTC Description................................................................................................................................................... 73

 

Circuit Description............................................................................................................................................... 73

 

Conditions for Running the DTC ........................................................................................................................ 73

 

Conditions for Setting the DTC........................................................................................................................... 73

 

Action Taken When the DTC Sets ...................................................................................................................... 73

 

Automatic Transmission – 4L60E – Electrical Diagnosis  

Page 7C2–5 

Conditions for Clearing the DTC ........................................................................................................................ 73

 

Test Description................................................................................................................................................... 74

 

DTC P0787 Diagnostic Table............................................................................................................................... 74

 

4.25

 

DTC P0788 – 3-2 Shift Solenoid Control Circuit High Voltage ......................................................................... 77

 

DTC Description................................................................................................................................................... 77

 

Circuit Description............................................................................................................................................... 77

 

Conditions for Running the DTC ........................................................................................................................ 77

 

Conditions for Setting the DTC........................................................................................................................... 77

 

Action Taken When the DTC Sets ...................................................................................................................... 77

 

Conditions for Clearing the DTC ........................................................................................................................ 77

 

Test Description................................................................................................................................................... 78

 

DTC P0788 Diagnostic Table............................................................................................................................... 78

 

4.26

 

DTC P0894 – Transmission Component Slipping ............................................................................................. 79

 

DTC Description................................................................................................................................................... 79

 

Circuit Description............................................................................................................................................... 79

 

Conditions for Running the DTC ........................................................................................................................ 80

 

Conditions for Setting the DTC........................................................................................................................... 80

 

Action Taken When the DTC Sets ...................................................................................................................... 81

 

Conditions for Clearing the DTC ........................................................................................................................ 81

 

Diagnostic Aids.................................................................................................................................................... 81

 

Test Description................................................................................................................................................... 81

 

DTC P0894 Diagnostic Table............................................................................................................................... 81

 

4.27

 

DTC P0961 – Line Pressure Control Solenoid System Performance .............................................................. 86

 

DTC Description................................................................................................................................................... 86

 

Circuit Description............................................................................................................................................... 86

 

Conditions for Running the DTC ........................................................................................................................ 86

 

Conditions for Setting the DTC........................................................................................................................... 86

 

Action Taken When the DTC Sets ...................................................................................................................... 86

 

Conditions for Clearing the DTC ........................................................................................................................ 87

 

Diagnostic Aids.................................................................................................................................................... 87

 

Test Description................................................................................................................................................... 87

 

DTC P0961 Diagnostic Table............................................................................................................................... 87

 

4.28

 

DTC P0973 – 1-2 Shift Solenoid Control Circuit Low Voltage .......................................................................... 89

 

DTC Description................................................................................................................................................... 89

 

Circuit Description............................................................................................................................................... 89

 

Conditions for Running the DTC ........................................................................................................................ 90

 

Conditions for Setting the DTC........................................................................................................................... 90

 

Action Taken When the DTC Sets ...................................................................................................................... 90

 

Conditions for Clearing the DTC ........................................................................................................................ 90

 

Test Description................................................................................................................................................... 90

 

DTC P0973 Diagnostic Table............................................................................................................................... 91

 

4.29

 

DTC P0974 – 1-2 Shift Solenoid Control Circuit High Voltage ......................................................................... 93

 

DTC Description................................................................................................................................................... 93

 

Circuit Description............................................................................................................................................... 93

 

Conditions for Running the DTC ........................................................................................................................ 94

 

Conditions for Setting the DTC........................................................................................................................... 94

 

Action Taken When the DTC Sets ...................................................................................................................... 94

 

Conditions for Clearing the DTC ........................................................................................................................ 94

 

Test Description................................................................................................................................................... 94

 

DTC P0974 Diagnostic Table............................................................................................................................... 94

 

4.30

 

DTC P0976 – 2-3 Shift Solenoid Control Circuit Low Voltage .......................................................................... 96

 

DTC Description................................................................................................................................................... 96

 

Circuit Description............................................................................................................................................... 96

 

Conditions for Running the DTC ........................................................................................................................ 96

 

Conditions for Setting the DTC........................................................................................................................... 97

 

Action Taken When the DTC Sets ...................................................................................................................... 97

 

Conditions for Clearing the DTC ........................................................................................................................ 97

 

Test Description................................................................................................................................................... 97

 

DTC P0976 Diagnostic Table............................................................................................................................... 97

 

4.31

 

DTC P0977 – 2-3 Shift Solenoid Control Circuit High Voltage ....................................................................... 100