Infiniti G37 Coupe. Manual - part 958

 

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Infiniti G37 Coupe. Manual - part 958

 

 

PCS

PCS-1

ELECTRICAL & POWER CONTROL

C

D

E

F

G

H

I

J

K

L

B

SECTION 

PCS

A

O

P

N

CONTENTS

POWER CONTROL SYSTEM

IPDM E/R

FUNCTION DIAGNOSIS ...............................

4

RELAY CONTROL SYSTEM  ..............................

4

System Diagram ........................................................

4

System Description  ...................................................

4

Component Parts Location ........................................

5

POWER CONTROL SYSTEM  .............................

7

System Diagram ........................................................

7

System Description  ...................................................

7

Component Parts Location ........................................

7

SIGNAL BUFFER SYSTEM  ................................

8

System Diagram ........................................................

8

System Description  ...................................................

8

Component Parts Location ........................................

8

POWER CONSUMPTION CONTROL SYS-
TEM .....................................................................

9

System Diagram ........................................................

9

System Description  ...................................................

9

Component Parts Location ......................................

10

DIAGNOSIS SYSTEM (IPDM E/R) .....................

11

Diagnosis Description  .............................................

11

CONSULT-III Function (IPDM E/R) .........................

13

COMPONENT DIAGNOSIS  .........................

16

U1000 CAN COMM CIRCUIT .............................

16

Description ..............................................................

16

DTC Logic  ...............................................................

16

Diagnosis Procedure ...............................................

16

B2098 IGNITION RELAY ON STUCK  ...............

17

Description ..............................................................

17

DTC Logic  ...............................................................

17

Diagnosis Procedure ...............................................

17

B2099 IGNITION RELAY OFF STUCK ..............

18

Description ...............................................................

18

DTC Logic ................................................................

18

Diagnosis Procedure  ...............................................

18

POWER SUPPLY AND GROUND CIRCUIT  ....

19

Diagnosis Procedure  ...............................................

19

ECU DIAGNOSIS .........................................

20

IPDM E/R (INTELLIGENT POWER DISTRI-
BUTION MODULE ENGINE ROOM)  ................

20

Reference Value ......................................................

20

Wiring Diagram - IPDM E/R -  ..................................

27

Fail Safe ..................................................................

30

DTC Index ...............................................................

32

PRECAUTION ..............................................

33

PRECAUTIONS .................................................

33

Precaution for Procedure without Cowl Top Cover ....

33

Precaution for Battery Service .................................

33

ON-VEHICLE REPAIR .................................

34

IPDM E/R (INTELLIGENT POWER DISTRI-
BUTION MODULE ENGINE ROOM)  ................

34

Exploded View .........................................................

34

Removal and Installation  .........................................

34

POWER DISTRIBUTION SYSTEM

BASIC INSPECTION  ...................................

36

DIAGNOSIS AND REPAIR WORKFLOW  ........

36

Work Flow ................................................................

36

FUNCTION DIAGNOSIS ..............................

39

POWER DISTRIBUTION SYSTEM  ...................

39

System Description ..................................................

39

Component Parts Location  ......................................

41

Component Description ..........................................

42

DIAGNOSIS SYSTEM (BCM)  ...........................

43

PCS-2

COMMON ITEM  ........................................................

43

COMMON ITEM : CONSULT-III Function (BCM - 
COMMON ITEM)  ....................................................

43

INTELLIGENT KEY ...................................................

44

INTELLIGENT KEY : CONSULT-III Function 
(BCM - INTELLIGENT KEY) ...................................

44

COMPONENT DIAGNOSIS  ........................

48

U1000 CAN COMM CIRCUIT  ............................

48

Description ..............................................................

48

DTC Logic ...............................................................

48

Diagnosis Procedure  ..............................................

48

U1010 CONTROL UNIT (CAN)  .........................

49

DTC Logic ...............................................................

49

Diagnosis Procedure  ..............................................

49

Special Repair Requirement ...................................

49

B2553 IGNITION RELAY ...................................

50

Description ..............................................................

50

DTC Logic ...............................................................

50

Diagnosis Procedure  ..............................................

50

B260A IGNITION RELAY  ..................................

52

Description ..............................................................

52

DTC Logic ...............................................................

52

Diagnosis Procedure  ..............................................

52

B2611 ACC RELAY  ...........................................

54

Description ..............................................................

54

DTC Logic ...............................................................

54

Diagnosis Procedure  ..............................................

55

B2614 ACC RELAY CIRCUIT  ...........................

57

Description ..............................................................

57

DTC Logic ...............................................................

57

Diagnosis Procedure  ..............................................

57

Component Inspection (Accessory Relay)  .............

58

B2615 BLOWER RELAY CIRCUIT  ...................

60

Description ..............................................................

60

DTC Logic ...............................................................

60

Diagnosis Procedure  ..............................................

60

Component Inspection (Blower Relay)  ...................

61

B2616 IGNITION RELAY CIRCUIT  ...................

63

Description ..............................................................

63

DTC Logic ...............................................................

63

Diagnosis Procedure  ..............................................

63

Component Inspection (Ignition Relay)  ..................

64

B2618 BCM ........................................................

66

Description ..............................................................

66

DTC Logic ...............................................................

66

Diagnosis Procedure  ..............................................

66

B261A PUSH-BUTTON IGNITION SWITCH  .....

67

Description ..............................................................

67

DTC Logic ...............................................................

67

Diagnosis Procedure  ..............................................

67

POWER SUPPLY AND GROUND CIRCUIT  .....

69

BCM ...........................................................................

69

BCM : Diagnosis Procedure ....................................

69

IPDM E/R (INTELLIGENT POWER DISTRIBU-
TION MODULE ENGINE ROOM) ..............................

69

IPDM E/R (INTELLIGENT POWER DISTRIBU-
TION MODULE ENGINE ROOM) : Diagnosis Pro-
cedure .....................................................................

69

PUSH-BUTTON IGNITION SWITCH  .................

71

Description ..............................................................

71

Component Function Check ..................................

71

Diagnosis Procedure ...............................................

71

Component Inspection  ............................................

72

PUSH-BUTTON IGNITION SWITCH POSI-
TION INDICATOR ..............................................

73

Description ..............................................................

73

Component Function Check ..................................

73

Diagnosis Procedure ...............................................

73

Component Inspection  ............................................

74

ECU DIAGNOSIS  .......................................

75

BCM (BODY CONTROL MODULE)  ..................

75

Reference Value  .....................................................

75

Wiring Diagram - PDS (POWER DISTRIBUTION 
SYSTEM) - ..............................................................

98

Fail Safe ...............................................................

103

DTC Inspection Priority Chart .............................

105

DTC Index ............................................................

107

IPDM E/R (INTELLIGENT POWER DISTRI-
BUTION MODULE ENGINE ROOM) ................

109

Reference Value  ...................................................

109

Wiring Diagram - PDS (POWER DISTRIBUTION 
SYSTEM) - ............................................................

116

Fail Safe ...............................................................

121

DTC Index ............................................................

123

PRECAUTION ...........................................

124

PRECAUTIONS  ................................................

124

Precaution for Supplemental Restraint System 
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ...............................................................

124

Precaution Necessary for Steering Wheel Rota-
tion after Battery Disconnect .................................

124

SYMPTOM DIAGNOSIS  ...........................

125

POWER DISTRIBUTION SYSTEM  ..................

125

Symptom Table .....................................................

125

PUSH-BUTTON IGNITION SWITCH DOES 
NOT OPERATE  ................................................

127

Description ............................................................

127

Diagnosis Procedure .............................................

127

PCS-4

< FUNCTION DIAGNOSIS >

[IPDM E/R]

RELAY CONTROL SYSTEM

FUNCTION DIAGNOSIS

RELAY CONTROL SYSTEM

System Diagram

INFOID:0000000001605854

System Description

INFOID:0000000001605855

IPDM E/R activates the internal control circuit to perform the relay ON-OFF control according to the input sig-
nals from various sensors and the request signals received from control units via CAN communication.

CAUTION:

IPDM E/R integrated relays cannot be removed.

JPMIA0614GB

 

 

 

 

 

 

 

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