Isuzu Trooper (2000 year). Manual - part 102

DRIVE LINE CONTROL SYSTEM (TOD)

4B2–28

060RX062

4B2–29

DRIVE LINE CONTROL SYSTEM (TOD)

Diagnostic Trouble Codes

Code

Item

Diagnosis

Check flow No.

12

Start code

Normal

—

13

Ref

Shorted GND

6

14

Front speed sensor

Input abnormality (open, sig or com)

2

15

Ref

Shorted V

B

6

16

Front speed sensor

Input abnormality

3

21

TPS

Shorted or disconnected wiring, abnormality in
input

7

23

ECU

CPU abnormality

1

24

Rear speed sensor

Input abnormality (open, sig or com)

5

26

EMC (+)

Shorted GND

10

27

Rear speed sensor

Input abnormality

4

28

ADC (+) & AXLE SW

Output abnormality

11

31

EMC (+)

Shorted or disconnected coil/wiring

9

32

ADC (+)

Shorted or disconnected coil/wiring

12

33

ADC (+)

Shorted GND

13

36

ECU

CPU abnormality

1

37

ECU

CPU abnormality

1

38

ECU

CPU abnormality

1

TPS : Throttle Position Sensor
EMC : Electromagnetic coil
ADC : Shift on the fly (Axle Dis Connect)

DRIVE LINE CONTROL SYSTEM (TOD)

4B2–30

Diagnosis from Trouble Codes

D

Diagnose the based on the fault that have been saved
to the control unit according to the system
self-diagnostic function.

Check flow

Trouble code

Phenomenon

Standard

1

 23, 36, 37, 38

The ECU is failed.

—

Step

Action

Yes

No

1

Turn on the starter switch.

Is the trouble reproduced?

Replace the ECU

and conduct the

test run.

Go to Step 3

Go to Step 2

2

1. Clear the trouble codes.
2. Conduct the test run.

Is the trouble reproduced during the test run?

Replace the ECU

and conduct the

test run.

Go to Step 3

The trouble is not

reproduced.

Refer to

“Troubles

intermittently

observed”.

Go to Step 3

3

1. Check that all the parts are mounted.
2. Clear the trouble codes.

Is this step complete?

Repeat the

“Diagnosis Flow”.

Return to Step 3

4B2–31

DRIVE LINE CONTROL SYSTEM (TOD)

Check flow

Trouble code

Phenomenon

Standard

2

14

Front speed sensor signal open or

GND short, speed sensor com

open.

0.3 < sensor voltage

NOTE: The following procedure shows the case that the
front or rear sensor common grounding line is broken.

D04RY00004