Isuzu Amigo / Axiom / Trooper / Rodeo / VehiCross. Manual - part 109

DRIVE LINE CONTROL SYSTEM (TOD)

4B2–54

Step

Action

Yes

No

1

1. Clear the trouble code.
2. Start the engine
3. Set the TOD mode.

Is there DTC31 (P1721)?

Go to 

Step 2

Refer to 

“Trouble

intermittently

observed”.

2

1. Turn off the starter switch.
2. Disconnect the ECU connector from ECU.

Is the continuity established between terminals (C–38)11 and
(C–38)22?

Go to 

Step 3

Go to 

Step 5

3

1. Connect the ECU connector.
2. Start the engine.
3. Set the TOD mode.

Does the voltage between terminals 11 and 22 indicate at least
0.4V?

Go to 

Step 4

Go to 

Step 6

4

Is the battery voltage always observed between terminals 11 and
22?

The harness is

short–circuited on

the battery.

Repair the circuit.

Go to 

Step 8

Go to 

Step 6

5

1. Disconnect the A–1 connector.

Is the continuity established between transfer connector
terminals (A–1)8 and (A–1)7?

The harness is
broken. Repair

the circuit.

Go to 

Step 8

Replace the

transfer

electromagnetic

coil (solenoid

clutch).

Go to 

Step 8

6

1. Turn off the starter switch.
2. Disconnect the ECU connector from ECU.

Is the resistance between the connector (C–38) terminal 11 and
22   1.0 

∼

 5.0

W

?

The ECU has

failed. Replace

the ECU 

Go to 

Step 8

Go to 

Step 7

7

Is the resistance between the transfer connector (A–1) terminal 8
and 7   1.0 

∼

 5.0

W

?

The harness is

disconnection or

short to GND.

Repair the circuit.

Go to 

Step 8

Replace the

transfer

electromagnetic

coil (solenoid

clutch).

Go to 

Step 8

8

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

Is this step complete?

Repeat the

“Diagnosis Flow”.

Return to Step 8

4B2–55

DRIVE LINE CONTROL SYSTEM (TOD)

Check flow

Trouble code

Phenomenon

Standard

10

28 (P1760)

The shift on the fly system (front

axle disconnect) works incorrectly.

—

NOTE: The shift on the fly system is not changed
between 2WD and 4WD modes normally.

CAUTION: If code 32 or 33 is also observed, remove
the trouble associated with code 32 or 33 first.

D04R200023

DRIVE LINE CONTROL SYSTEM (TOD)

4B2–56

Step

Action

Yes

No

1

1. Turn on the starter switch.
2. Set the transfer to the 2H mode.

Is the battery voltage observed between terminals 23 and 47?

Go to 

Step 2

Go to 

Step 5

2

Is 5V observed between terminals 42 and 47?

Go to 

Step 3

Go to 

Step 6

3

1. Set the transfer to the TOD mode.

Does the voltage between terminals 23 and 47 indicate 0

∼

1V?

Go to 

Step 4

The ECU has

failed. Replace

the ECU.

Go to 

Step 7

4

Does the voltage between terminals 42 and 47 indicate 0V?

The phenomenon

is not

reproduced.

Refer to

“Troubles

intermittently

observed”.

The shift on the

fly system is

failed (refer to

Section 4B1 and

4C).

Go to 

Step 7

5

Does the TOD indicator show the 2H mode?

The ECU has

failed. Replace

the ECU.

Go to 

Step 7

See “Trouble

Diagnosis

Depending on

The Status of

TOD Indicator”.

6

Set the transfer to the TOD mode.

Does the voltage between terminals 23 and 47 indicate 0

∼

1V?

The shift on the

fly system has

failed (refer to

Section 4B1 and

4C).

Go to 

Step 7

The ECU has

failed. Replace

the ECU.

Go to 

Step 7

7

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

Is this step complete?

Verify the repair.

Return to 

Step 7

4B2–57

DRIVE LINE CONTROL SYSTEM (TOD)

Check flow

Trouble code

Phenomenon

Standard

11

32 (P1761)

The on/off signal (ADC) line of the

shift on the fly system (front axle

disconnect) is broken, or the line is

short-circuited to the battery.

—

NOTE: The on/off signal line of the shift on the fly system
is broken, or the line is short–circuited to the battery.

D04R200023