Isuzu D-Max / Isuzu Rodeo (TFR/TFS). Manual — part 1854

7A2-32 DIAGNOSIS

Flash Code

(P-Code)

CHECK TRANS Flash Pattern

Description

CHECK

TRANS

Warning

34 (P0768)

Low Clutch Duty Solenoid Failure

ON

35 (P0748)

Line Pressure Solenoid Failure

ON

36 (P1860)

Lock-up Duty Solenoid Failure

ON

41 (P0731)

1stGearRatioError

ON

42 (P0732)

2ndGearRatioError

ON

43 (P0733)

3rdGearRatioError

ON

44 (P0734)

4thGearRatioError

ON

51 (P1750)

ON

Low & Reverse Brake Fail-safe
Valve Failure

52 (P1755)

2-4BrakeFail-safeValveFailure

ON

- (P0602)

No Flash Code

Programming Error

ON

DIAGNOSIS 7A2-33

FAIL-SAFEFUNCTION

Fail-Safe Condition

Flash Code

(P-Code)

Description

CHECK

TRANS

Warning

Gear

Shift

Solenoid

Line

Pressure

Solenoid

Lock-up

Remark

11

(P0722)

Vehicle peed Sensor No
Signal

ON

3rdFix

All Stop

-

Inhibited

13

(P0727)

Engine Revolution Sensor
No Signal

ON

-

-

-

Inhibited

14

(P0717)

Turbine Speed Sensor No
Signal

ON

3rdFix

All Stop

-

Inhibited

15

(P0710)

ATF Temperature Sensor
Failure

OFF

3,2,L

-

-

Inhibited

*1

16

(P0560)

System Voltage Failure

ON

3rdFix

All Stop

-

Inhibited

*2

17

(P0705)

Inhibitor Switch Failure

ON

3rdFix

All Stop

-

Inhibited

22

(P1120)

Throttle Signal Failure

ON

3rdFix

All Stop

-

Inhibited

25

(P1875)

GND Return Circuit
Failure

ON

3rdFix

All Stop

-

Inhibited

*2

26

(P1853)

Low & Reverse Brake
Pressure Switch Failure

ON

No Fail-safe Function

27

(P1858)

2-4 Brake Pressure
Switch Failure

ON

No Fail-safe Function

28

(P1863)

High Clutch Pressure
Switch Failure

ON

No Fail-safe Function

31

(P0753)

Low & Reverse Brake
Duty Solenoid Failure

ON

3rdFix

All Stop

-

Inhibited

32

(P0758)

2-4 Brake Duty Solenoid
Failure

ON

3rdFix

All Stop

-

Inhibited

33

(P0763)

High Clutch Duty Solenoid
Failure

ON

3rdFix

All Stop

-

Inhibited

34

(P0768)

Low Clutch Duty Solenoid
Failure

ON

3rdFix

All Stop

-

Inhibited

35

(P0748)

Line Pressure Solenoid
Failure

ON

-

-

Stop

-

36

(P1860)

Lock-up Duty Solenoid
Failure

ON

-

-

-

Inhibited

41

(P0731)

1stGearRatioError

ON

No Fail-safe Function

42

(P0732)

2ndGearRatioError

ON

No Fail-safe Function

43

(P0733)

3rdGearRatioError

ON

No Fail-safe Function

44

(P0734)

4thGearRatioError

ON

No Fail-safe Function

51

(P1750)

Low & Reverse Brake
Fail-safe Valve Failure

ON

3rdFix

All Stop

-

Inhibited

52

(P1755)

2-4 Brake Fail-safe Valve
Failure

ON

3rdFix

All Stop

-

Inhibited

-

(P0602)

Programming Error

ON

No Fail-safe Function

*1: When the engine speed is more than 470 rpm for 10 minuets, the lock-up and gear shift to 4th (over-drive) are

allowed.

*2: In case of fail-safe valve failure, gear shift to 4th (over-drive) is inhibited.

7A2-34 DIAGNOSIS

DTC P0722 (Flash Code 11) Vehicle Speed Sensor No Signal

Speed

Sensor

TCM

B13

H23

(4)

C95
(13)

E30

(2)
(1)
(3)

E10

Key SW

YEL/RED

BLK

YEL/RED

Speed Sensor

Turbine Sensor

Setting Condition:

•

When the vehicle speed exceeds 5 km/h with the turbine speed over 1000 rpm for 5 seconds, after 25.5

seconds elapsed in D, 3, 2 or L range.

Fail Safe:

•

When the vehicle is running, the gear position selected at the trouble detection is held and the lock-up is

inhibited.

•

After the vehicle stopped, all solenoid operations stop (OFF) and the gear is fixed to the 3rd.

Possible Cause:

•

Speed sensor malfunction.

•

Sensor wheel (parking gear) malfunction.

•

Large sensing gap between speed sensor and sensor wheel (parking gear).

•

Sensor wire open circuit, short circuit to battery or short circuit to ground between speed sensor terminal 1 and

TCM terminal B13 (C95).

•

Sensor wire open circuit or short circuit to ground of the harness between speed sensor terminal 2 and power

supply circuit.

•

Sensor wire open circuit or short circuit to battery between speed sensor terminal 3 and ground circuit.

DIAGNOSIS 7A2-35

•

Poor connection of each connector.

Reference:
When the vehicle speed 20km/h at L range in 1st gear, following signal is outputted.
Measurement terminal: B13 (C95) and B5 (C95)
-AC range by circuit tester: Approximately 6.2 V

Vehicle Speed Sensor Reference Wave Form

Measurement Terminal: B13 (+)

B5 (-)

Measurement Scale: 5V/div

2ms/div

Measurement Condition: Vehicle speed 20km/h at L range in 1st gear