Isuzu Amigo / Axiom / Trooper / Rodeo / VehiCross. Manual - part 633

DRIVE LINE CONTROL SYSTEM (TOD)

4B2–52

Check flow

Trouble code

Phenomenon

Standard

12

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.

D04RY00008

4B2–53

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–48)1 and
(B–48)24?

Go to Step 2

The harness is
broken. Repair

the circuit.

Go to Step 3

2

Does the voltage between terminals (B–48)1 and (B–48)24
indicate 0V?

Go to Step 3

The battery is

short-circuited.

Repair the circuit.

Go to Step 4

3

1. Turn off the starter switch.
2. Connect ECU connector.
3. Turn on the starter switch.
4. Set the transfer to the 2H mode.

Is the battery voltage observed between terminals 23 and 46?

The phenomenon

is not reproduced

Refer to

“Troubles

intermittently

observed”.

The ECU has

failed. Replace

the ECU.

Go to Step 4

4

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

Is this step complete?

Repeat the

“Diagnosis Flow”.

Return to Step 4

DRIVE LINE CONTROL SYSTEM (TOD)

4B2–54

Check flow

Trouble code

Phenomenon

Standard

13

33 (P1762)

The ADC line is short-circuited to

GND.

—

NOTE:

D

The on/off signal line of the shift on the fly system is
short–circuited to GND.

D

The system enters into the fail-safe mode because of
fusing or system protection.

(If a short–circuit is observed on GND, the output to
the on/off signal line becomes 0V.)

D04RY00008

4B2–55

DRIVE LINE CONTROL SYSTEM (TOD)

Step

Action

Yes

No

1

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

Does the resistance between terminals (B–48)1 and (B–48)24
meet the standard, R = 21 

±

 4 ohms?

The phenomenon

is not

reproduced.

Refer to

“Troubles

intermittently

observed”. 

Go to Step 2

2

Is the resistance between terminals (B–48)1 and (B–48)24 R<2
ohms?

The signal line

circuit of the shift
on the fly system

is short-circuited

to GND. Repair

the circuit. 

Go to Step 4

Go to Step 3

3

Is the resistance between terminals (B–48)1 and (B–48)24 R=
9

±

7ohms?

The signal line

circuit of the shift
on the fly system

is layer

short-circuited*.

Replace the valve

(VSV).

Go to Step 4

Go to Step 4

4

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

Is this step complete?

Repeat the

“Diagnosis Flow”.

Return to Step 4

*Layer short-circuit : The coil is damaged by overcurrent.