Mazda X-5. Manual - part 68

ON-BOARD DIAGNOSTIC [SJ6A-EL]

05–02–1

05–02

05–02

ON-BOARD DIAGNOSTIC [SJ6A-EL]

 6-SPEED AT

ON-BOARD DIAGNOSTIC (OBD)

SYSTEM OUTLINE [SJ6A-EL] . . . . . . .  05–02–1

ON-BOARD DIAGNOSTIC (OBD) 

SYSTEM BLOCK DIAGRAM
[SJ6A-EL]  . . . . . . . . . . . . . . . . . . . . . . .  05–02–1

MALFUNCTION DETECTION FUNCTION

[SJ6A-EL]  . . . . . . . . . . . . . . . . . . . . . . .  05–02–2

Malfunction Detection Function . . . . . .  05–02–2
DTC Table  . . . . . . . . . . . . . . . . . . . . . .  05–02–2

MEMORY FUNCTION [SJ6A-EL] . . . . . .  05–02–3

MALFUNCTION INDICATION FUNCTION

[SJ6A-EL] . . . . . . . . . . . . . . . . . . . . . . . . 05–02–3

FAIL-SAFE FUNCTION [SJ6A-EL]  . . . . . 05–02–3

Emergency Mode  . . . . . . . . . . . . . . . . . 05–02–7

PARAMETER IDENTIFICATION (PID)

DATA MONITORING FUNCTION
[SJ6A-EL] . . . . . . . . . . . . . . . . . . . . . . . . 05–02–7

Monitor Item Table. . . . . . . . . . . . . . . . . 05–02–7

SIMULATION FUNCTION [SJ6A-EL]  . . . 05–02–8

Simulation Item Table  . . . . . . . . . . . . . . 05–02–8

DLC-2 OUTLINE [SJ6A-EL]. . . . . . . . . . . 05–02–8

End of Toc

ON-BOARD DIAGNOSTIC (OBD) SYSTEM OUTLINE [SJ6A-EL]

E5U050200000N01

• The OBD system has the following functions: 

— Malfunction detection function: detects malfunctions of the input/output devices and system components of 

the AT.

— Fail-safe function: controls the output device function and input value of the sensors/switches to ensure 

minimum vehicle drivability when a failure is detected.

— Memory function: stores the DTC when a failure is detected.

— PID data monitoring function: monitors the input/output signal and calculated value of the TCM and sends 

the monitoring data to the scan tool.

— Simulation function: Allows override operation of simulation items for input/output system parts preset in the 

TCM.

End Of Sie

ON-BOARD DIAGNOSTIC (OBD) SYSTEM BLOCK DIAGRAM [SJ6A-EL]

E5U050200000N02

End Of Sie

TCM

CAN

CAN

PCM (CAN)

DLC-2

MIL

INPUT 
PARTS

OBD SYSTEM

MALFUNCTION 
INDICATION 
FUNCTION

MEMORY 
FUNCTION

SERIAL 
COMMUNICATION

MALFUNCTION 
DETECTION 
FUNCTION

PID DATA 
MONITORING 
FUNCTION

SIMULATION 
FUNCTION

FAIL-SAFE 
FUNCTION

TRANSAXLE CONTROL SYSTEM

INSTRUMENT 
CLUSTER

AT WARNING 
LIGHT

WDS OR 
EQUIVALENT

OUTPUT 
PARTS

E5U502ZS5001

ON-BOARD DIAGNOSTIC [SJ6A-EL]

05–02–2

MALFUNCTION DETECTION FUNCTION [SJ6A-EL]

E5U050200000N03

Malfunction Detection Function

• In the malfunction detection function, the TCM detects malfunctions in the automatic transmission while driving.

• When vehicle driving conditions correspond with a preset malfunction detection condition, the TCM determines 

that the automatic transmission has a malfunction and stores the corresponding DTC.

• When a malfunction is detected, stored DTCs can be retrieved using the WDS or equivalent connected to the 

DLC-2.

DTC Table

X: Available

–: N/A

DTC No.

Condition

MIL

AT 

warning 

light

DC

Memory 

function

P0601

Flash ROM malfunction

X

X

1

X

P0603

EEPROM malfunction

X

X

1

X

P0604

RAM malfunction

X

X

1

X

P0707

Transmission range (TR) switch circuit low input (short to ground)

X

X

1

X

P0708

Transmission range (TR) switch circuit high input (open circuit)

X

X

2

X

P0711

Transmission fluid temperature (TFT) sensor malfunction (stuck)

X

X

2

X

P0712

Transmission fluid temperature (TFT) sensor circuit malfunction (short to 
ground)

X

X

1

X

P0713

Transmission fluid temperature (TFT) sensor circuit malfunction (short to 
power/open circuit)

X

X

1

X

P0717

Turbine sensor circuit malfunction (open circuit/short circuit)

X

X

1

X

P0722

Vehicle speed sensor (VSS) circuit malfunction (open circuit/short circuit)

X

X

1

X

P0751

Shift solenoid A malfunction (stuck off)

X

X

2

X

P0752

Shift solenoid A malfunction (stuck on)

X

X

2

X

P0756

Shift solenoid B malfunction (stuck off)

X

X

2

X

P0757

Shift solenoid B malfunction (stuck on)

X

X

2

X

P0761

Shift solenoid C malfunction (stuck off)

X

X

2

X

P0762

Shift solenoid C malfunction (stuck on)

X

X

2

X

P0766

Shift solenoid D malfunction (stuck off)

X

X

2

X

Shift solenoid G malfunction (stuck on)

X

X

2

X

P0781

1-2 shift valve malfunction

X

X

2

X

P0813

Reverse sequence valve malfunction

X

X

2

X

P0819

Manual switch/up switch/down switch circuit malfunction (open circuit/short 
circuit)

–

X

1

X

P0826

Steering shift switch circuit malfunction (open circuit/short to ground)

X

X

1

X

P0882

TCM B+ low (less than 9 V)

–

X

1

X

P0883

TCM B+ low (less than 11 V)

–

X

1

X

P0961

Line pressure control solenoid range/performance (stuck)

X

X

1

X

P0962

Line pressure control solenoid circuit malfunction (short to ground/open circuit)

X

X

1

X

P0963

Line pressure control solenoid circuit malfunction (short to power)

X

X

1

X

P0969

Shift solenoid F range/performance (stuck)

X

X

1

X

P0970

Shift solenoid F circuit malfunction (short to ground/open circuit)

X

X

1

X

P0971

Shift solenoid F circuit malfunction (short to power)

X

X

1

X

P0973

Shift solenoid A circuit malfunction (short to ground)

X

X

1

X

P0974

Shift solenoid A circuit malfunction (short to power/open circuit)

X

X

1

X

P0976

Shift solenoid B circuit malfunction (short to ground)

X

X

1

X

P0977

Shift solenoid B circuit malfunction (short to power/open circuit)

X

X

1

X

P0979

Shift solenoid C circuit malfunction (short to ground)

X

X

1

X

P0980

Shift solenoid C circuit malfunction (short to power/open circuit)

X

X

1

X

P0982

Shift solenoid D circuit malfunction (short to ground)

X

X

1

X

P0983

Shift solenoid D circuit malfunction (short to power/open circuit)

X

X

1

X

P0985

Shift solenoid E circuit malfunction (short to ground)

X

X

1

X

P0986

Shift solenoid E circuit malfunction (short to power/open circuit)

X

X

1

X

ON-BOARD DIAGNOSTIC [SJ6A-EL]

05–02–3

05–02

MIL: Malfunction Indicator Lamp
DC:  Drive Cycle

End Of Sie

MEMORY FUNCTION [SJ6A-EL]

E5U050200000N04

• The memory function stores malfunction information detected in the malfunction detection function. Once 

malfunction information is stored, the memory will not be cleared even when the ignition switch is turned off 
(LOCK position) or the malfunction is repaired.

• The stored memory (malfunction information) can be cleared using the WDS or equivalent, or by disconnecting 

the negative battery cable.

End Of Sie

MALFUNCTION INDICATION FUNCTION [SJ6A-EL]

E5U050200000N05

• The malfunction indication function illuminates the MIL or AT warning light when the malfunction detection 

function determines there is a malfunction.

End Of Sie

FAIL-SAFE FUNCTION [SJ6A-EL]

E5U050200000N06

• In the fail-safe function, minimum vehicle drivability is obtained by changing the signals that are determined to 

be malfunctions by the malfunction detection function to the preset values, and limiting TCM control.

P2719

Shift solenoid G range/performance (stuck)

X

X

1

X

P2720

Shift solenoid G circuit malfunction (short to ground/open circuit)

X

X

1

X

P2721

Shift solenoid G circuit malfunction (short to power)

X

X

1

X

P2757

Torque converter clutch (TCC) stuck on

X

X

2

X

P2758

Torque converter clutch (TCC) stuck off

X

X

2

X

P2762

TCC control solenoid range/performance (stuck)

X

X

1

X

P2763

TCC control solenoid circuit malfunction (short to power)

X

X

1

X

P2764

TCC control solenoid circuit malfunction (short to ground/open circuit)

X

X

1

X

U0073

CAN BUS OFF

X

X

1

X

U0100

TCM cannot receive any signals from PCM

X

X

1

X

DTC No.

Condition

MIL

AT 

warning 

light

DC

Memory 

function

DTC 

No.

On-board diagnostic 

function

Detection condition

Fail-safe

P0601

Flash ROM malfunction

• Flash ROM (in TCM) internal circuit 

malfunction is detected.

• Emergency mode

• Inhibits self learning control

• Inhibits driver adaptive shift control

• Inhibits TCC control

P0603

EEPROM malfunction

• Different numeric values for 

EEPRROM and RAM (in TCM) are 
detected.

N/A

P0604

RAM malfunction

• RAM (in TCM) read/write error is 

detected.

• Emergency mode

• Inhibits self learning control

• Inhibits driver adaptive shift control

• Inhibits TCC control

P0707

Transmission range (TR) 
switch circuit low input 
(short to ground)

• TR switch position voltage input to 

TCM is less than 0.127 V when 
ignition switch is at ON position.

• D range is determined when there is no 

TR switch signal input.

• Inhibits slope mode control

P0708

Transmission range (TR) 
switch circuit high input 
(open circuit)

• Vehicle speed is 30 km/h {18.6 mph} 

or more, and no range signal is input 
from the TR switch.

• D range is determined when there is no 

TR switch signal input.

• Inhibits slope mode control

P0711

Transmission fluid 
temperature (TFT) sensor 
malfunction (stuck)

• Change in ATF temperature cannot be 

detected for 10 min or more when 
driving in D range.

• Fixes ATF temperature value at 80 °C 

{176 

°F}

• Inhibits slope mode control

• Inhibits self learning control

P0712

Transmission fluid 
temperature (TFT) sensor 
circuit malfunction (short to 
ground)

• TCM detects ATF temperature of 200 

°C {392 °F} or more.

• Fixes ATF temperature value at 80 °C 

{176 

°F}

• Inhibits slope mode control

• Inhibits self learning control

ON-BOARD DIAGNOSTIC [SJ6A-EL]

05–02–4

P0713

Transmission fluid 
temperature (TFT) sensor 
circuit malfunction (short to 
power/open circuit)

• TCM detects ATF temperature of less 

than -43 

°C {-45.4 °F} when engine is 

warmed-up and running.

• Fixes ATF temperature value at 80 °C 

{176 

°F}

• Inhibits slope mode control

• Inhibits self learning control

P0717

Turbine sensor circuit 
malfunction (open circuit/
short circuit)

• Turbine speed signal is not input during 

vehicle speed signal 12 pulse period 
when driving in D range.

• Substitutes vehicle speed signal for 

turbine speed signal.

• Inhibits 5GR and 6GR

• Inhibits self learning control

• Inhibits driver adaptive shift control

P0722

Vehicle speed sensor 
(VSS) circuit malfunction 
(open circuit/short circuit)

• Vehicle speed signal is not input during 

turbine speed signal 12 pulse period 
when driving in D range.

• Substitutes turbine speed signal for 

vehicle speed signal.

• Inhibits 5GR and 6GR

• Inhibits self learning control

• Inhibits driver adaptive shift control

P0751

Shift solenoid A 
malfunction (stuck off)

• TCM detects that shift solenoid A does 

not change from off when engine is 
running

• Inhibits 4GR, 5GR and 6GR

• Inhibits 1GR and 2GR (manual mode)

P0752

Shift solenoid A 
malfunction (stuck on)

• TCM detects that shift solenoid A does 

not change from on when engine is 
running

N/A

P0756

Shift solenoid B 
malfunction (stuck off)

• TCM detects that shift solenoid B does 

not change from off when engine is 
running

N/A

P0757

Shift solenoid B 
malfunction (stuck on)

• TCM detects that shift solenoid B does 

not change from on when engine is 
running

N/A

P0761

Shift solenoid C 
malfunction (stuck off)

• TMC detects that shift solenoid C does 

not change from off when engine is 
running

N/A

P0762

Shift solenoid C 
malfunction (stuck on)

• TMC detects that shift solenoid C doe 

not change from on when engine is 
running

• Inhibits 4GR, 5GR and 6GR

P0766

Shift solenoid D 
malfunction (stuck off)

• TCM detects that shift solenoid D does 

not change from off when engine is 
running

• Inhibits 4GR, 5GR and 6GR

Shift solenoid G 
malfunction (stuck on)

• TCM detects that shift solenoid G does 

not change from on when engine is 
running

• Inhibits 4GR, 5GR and 6GR

P0781

1-2 shift valve malfunction

• TCM detects 1–2 shift valve 

malfunction.

• Inhibits 4GR, 5GR and 6GR

• Inhibits 1GR and 2GR (manual mode)

P0813

Reverse sequence valve 
malfunction

• TCM detects reverse sequence valve 

malfunction.

• Inhibits 6GR

P0819

Manual switch/up switch/
down switch circuit 
malfunction (open circuit/
short circuit)

M range switch circuit malfunction

• M range switch remains on for 2 s or 

more except in D range.

• Inhibits manual mode control

Up switch or down switch circuit 

malfunction

• When all of the following conditions are 

met:
— M range switch off.

— Except D range

— Up or down switch remains on for 10 

s or more.

• Inhibits manual mode control using 

selector lever

P0826

Steering shift switch circuit 
malfunction (open circuit/
short to ground)

• TCM detects short circuit or short to 

ground in steering shift switch circuit 
when engine is running.

• Inhibits manual mode control

P0882

TCM B+ low (less than 9 
V)

• Voltage of less than 9 V detected at 

TCM terminals 1AD when engine is 
running.

• Emergency mode

• Inhibits self learning control

• Inhibits driver adaptive shift control

• Inhibits TCC control

P0883

TCM B+ low (less than 11 
V)

• Voltage of less than 11 V detected at 

TCM terminals 1AD when engine is 
running.

• Inhibits self learning control

DTC 

No.

On-board diagnostic 

function

Detection condition

Fail-safe