Isuzu Amigo / Axiom / Trooper / Rodeo / VehiCross. Manual - part 631

DRIVE LINE CONTROL SYSTEM (TOD)

4B2–44

D04RY00012

4B2–45

DRIVE LINE CONTROL SYSTEM (TOD)

Step

Action

Yes

No

1

1. Turn off the starter switch.

Is the battery voltage normal?

Go to Step 2

Charge or

replace the

battery.

Go to Step 7

2

1. Turn on the starter switch.

Does the voltage between terminals 15 and 46 fall within the
standard range?

Go to Step 3

Go to Step 4

3

1. Clear the trouble code.
2. Turn on the starter switch.

Is there DTC21 (P1716)?

Go to Step 4

Refer to “Trouble

intermittently

observed”.

4

1. Turn off the starter switch.
2. Disconnect the ECU connector.
3. Turn on the starter switch.

Does the voltage between terminals (B–49)15 and (B–48)24 fall
within the standard range above?

The ECU has

failed. Replace

the ECU.

Go to Step 7

Go to Step 5

5

Is the harness healthy?

Go to Step 6

Repair the

harness.

Go to Step 7

6

Is the TPS healthy?

Go to Step 7

Replace the TPS.

Go to Step 7

7

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

Is this step complete?

Repeat the

“Diagnosis Flow”.

Go to Step 7

DRIVE LINE CONTROL SYSTEM (TOD)

4B2–46

Check flow

Trouble code

Phenomenon

Standard

9

31 (P1721)

The electromagnetic coil is broken

or shorted to the battery.

—

D04RY00008

4B2–47

DRIVE LINE CONTROL SYSTEM (TOD)

Step

Action

Yes

No

1

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

Is the continuity established between terminals (B–49)11 and
(B–49)22?

Go to Step 2

Go to Step 4

2

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 3

The ECU has

failed. Replace

the ECU.

Go to Step 5

3

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 5

The phenomenon

is not

reproduced.

Refer to

“Troubles

intermittently

observed”.

4

1. Disconnect the M–27 connector.

Is the continuity established between transfer connector
terminals (M–27)8 and (M–27)7?

The harness is
broken. Repair

the circuit.

Go to Step 5

Replace the

transfer

electromagnetic

coil (solenoid

clutch).

Go to Step 5

5

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

Is this step complete?

Repeat the

“Diagnosis Flow”.

Return to Step 5