Isuzu Amigo / Axiom / Trooper / Rodeo / VehiCross. Manual - part 119

DRIVE LINE CONTROL SYSTEM (TOD)

4B2–94

Chart E–1

AXLE switch circuit wires are broken.

Function of circuit

—

Fail condition

Both the TOD and 4L modes are disabled. (The transition status is not removed.)

Indicator lamp state

TOD switch position

TOD

4L

D04R200023

4B2–95

DRIVE LINE CONTROL SYSTEM (TOD)

Step

Action

Yes

No

1

Start the engine.

When the TOD switch is selected to the TOD position, is 0V
observed between terminals 42 and 47?

Go to 

Step 2

Go to 

Step 4

2

1. The car stops, the AT selector is N position, and the brake is

applied.

2. Select the TOD switch to the 4L position.

Is 0V observed between terminals 42 and 47?

Go to 

Step 3

Go to 

Step 4

3

1. The car stops, the AT selector is N position, and the brake is

applied.

When the TOD switch is selected to the 4L position, is 12V
observed between the terminal 19 and 47?

The phenomenon

is not

reproduced.

Refer to

“Troubles

intermittently

observed”.

The ECU has

failed.Replace

the ECU.

Go to 

Step 8

4

1. The car stops, the AT selector is N position, and the brake is

applied.

When the TOD switch is selected to the 2H position, is the battery
voltage observed between the terminal 23 and 47.

Go to 

Step 5

Go to 

Step 7

5

When the TOD switch is selected to the TOD position (TOD
mode), is 0 

∼

 1V observed between terminals 23 and 47?

Go to 

Step 6

Go to 

Step 7

6

1. The car stops, the AT selector is N position, and the brake is

applied.

When the TOD switch is selected to the 4L position, is 0V
observed between terminals 23 and 47?

Repair the circuit

or check the

“Front Axle

Disconnect”.

(Refer to 

section

4B)

Go to 

Step 8

Go to 

Step 7

7

Is any of the trouble codes 28 (P1760), 32 (P1761) and 33
(P1762) recorded?

Examine the

trouble based on

“Diagnosis from

Trouble Codes”.

The ECU has

failed. Replace

the ECU.

Go to 

Step 8

8

Check that all the parts are mounted.

Is this step complete?

Verify the repair.

Go to 

Step 8

DRIVE LINE CONTROL SYSTEM (TOD)

4B2–96

Chart E–2

The AXLE switch circuit is short-circuited to GND.

Function of circuit

—

Fail condition

Even after the TOD switch is selected to the 2H position, the 2H mode is not enabled.

(The transition status is not removed.)

Indicator lamp state

TOD switch position

2H

D04R200023

4B2–97

DRIVE LINE CONTROL SYSTEM (TOD)

Step

Action

Yes

No

1

Start the engine.

When the TOD switch is selected to the TOD position, is 0V
observed between terminals 42 and 47?

Go to 

Step 2

Go to 

Step 6

2

1. The car stops, the AT selector is N position, and the brake is

applied.

When the TOD switch is selected to the 4L position, is 0V
observed between terminals 42 and 47?

Go to 

Step 3

Go to 

Step 6

3

1. The car stops, the AT selector is N position, and the brake is

applied.

2. Select the TOD switch to the 2H position.

Is 5V observed between terminals 42 and 47?

Go to 

Step 4

Go to 

Sep 6

4

Is 12V observed between terminals 7 and 47?

Go to 

Step 5

Replace the

ECU.

Go to 

Step 10

5

Is 12V observed between terminals 19 and 47?

The phenomenon

is not

reproduced.

Refer to

“Troubles

intermittently

observed”.

The ECU has

failed.Replace

the ECU.

Go to 

Step 10

6

1. The car stops, the AT selector is N position, and the brake is

applied.

When the TOD switch is selected to the 2H position, is the battery
voltage observed between terminals 23 and 47?

Go to 

Step 7

Go to 

Step 9

7

1. The car stops, the AT selector is N position, and the brake is

applied.

When the TOD switch is selected to the TOD position, is 0V
observed between terminals 23 and 47?

Go to 

Step 8

Go to 

Step 9

8

1. The car stops, the AT selector is N position, and the brake is

applied.

When the TOD switch is selected to the 4L position, is 0V
observed between terminals 23 and 47?

Repair the circuit

or check the

“Front Axle

Disconnect”.

(Refer to 

section

4B)

Go to 

Step 10

Go to 

Step 9

9

Is any of the trouble codes 28 (P1760), 32 (P1761) and 33
(P1762) recorded?

Examine the

trouble based on

“Diagnosis from

Trouble Codes”.

The ECU has

failed. Replace

the ECU.

Go to 

Step 10

10

Check that all the parts are mounted.

Is this step complete?

Verify the repair.

Go to 

Step 10