Isuzu Amigo / Axiom / Trooper / Rodeo / VehiCross. Manual - part 104

DRIVE LINE CONTROL SYSTEM (TOD)

4B2–34

060R200079

4B2–35

DRIVE LINE CONTROL SYSTEM (TOD)

Diagnostic Trouble Codes

Code

Tech 2 code

(P code)

Item

Diagnosis

Check flow No.

12

—

Start code

Normal

—

13

P1735

Ref

Shorted GND

6

14

P1731

Front speed sensor

Input abnormality (open, sig or com)

2

15

P1736

Ref

Shorted V

B

6

16

P1737

Front speed sensor

Input abnormality

4

17

P1774

Inhibitor switch

Input abnormality

8

21

P1716

TPS

Shorted or disconnected wiring,
abnormality in input

7

23

—

ECU

CPU abnormality

1

24

P1733

Rear speed sensor

Input abnormality (open, sig or com)

3

27

P1738

Rear speed sensor

Input abnormality

5

28

P1760

ADC (+) & AXLE SW

Output abnormality

10

31

P1721

EMC (+)

Shorted VB, disconnected coil/wiring or
shorted GND

9

32

P1761

ADC (+)

Shorted VB or disconnected wiring

11

33

P1762

ADC (+)

Shorted GND

12

36

—

ECU

CPU abnormality

1

37

P1712

ECU

CPU abnormality

1

38

P1714

ECU

CPU abnormality

1

41

P1741

Hight-Low shift motor

Shorted GND or disconnected wiring

13

42

P1773

Hight-Low shift motor

User operation error (not failure)

14

43

P1743

Hight-Low shift motor

Motor moving more than 5s

15

55

P1755

Hight-Low shift motor

Input abnormality of motor position signal

16

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

DRIVE LINE CONTROL SYSTEM (TOD)

4B2–36

Diagnosis from Trouble Codes

D

Diagnose 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 has failed.

—

P1712, P1714

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 

“Trouble

intermittently

observed”.

Go to 

Step 3

3

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

Is this step complete?

Verify the repair.

Return to 

Step 3

4B2–37

DRIVE LINE CONTROL SYSTEM (TOD)

Check flow

Trouble code

Phenomenon

Standard

2

14

Front speed sensor signal open or

GND short speed sensor com

0.2V > sensor voltage

P1731

GND short, s eed sensor com

open.

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

D04R200005