Isuzu Amigo / Axiom / Trooper / Rodeo / VehiCross. Manual - part 118

DRIVE LINE CONTROL SYSTEM (TOD)

4B2–90

Chart D–2

The 4L switch circuit is short-circuited to GND.

Function of circuit

—

Fail condition

When the TOD switch is changed to the 2H or TOD position, the indicator 2H or TOD

mode goes on and off.

Indicator lamp state

TOD switch position

2H or TOD

4B2–91

DRIVE LINE CONTROL SYSTEM (TOD)

D04R200022

DRIVE LINE CONTROL SYSTEM (TOD)

4B2–92

Step

Action

Yes

No

1

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

is applied.

When the TOD switch is changed to the TOD (or 2H) position, is
12V observed between terminals 44 and 47 (4L switch)?

Go to 

Step 2

Go to 

Step 3

2

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

is applied.

When the TOD switch is changed to the 4L position, is 0V
observed between terminals 44 and 47 (4L switch)?

Refer to 

“Trouble

intermittently

observed”.

Go to 

Step 3

3

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

is applied.

2. Select the TOD switch to the TOD (or 2H) position.

Is there the continuity between the connector (C–37) terminal 22
and 25?

Go to 

Step 5

Go to 

Step 4

4

1. Connect the ECU connector (C–37) and turn on the starter

switch.

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

is applied.

3. Select the TOD switch to the 4L position.
4. Turn off the starter switch and disconnect the ECU connector

(C–37).

Is there the continuity between the connector (C–37) terminal 22
and 25?

The ECU has

failed.Replace

the ECU.

Go to 

Step 9

Go to 

Step 5

5

1. Connect the ECU connector (C–37) and turn on the starter

switch.

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

is applied.

3. Select the TOD switch to the TOD (or 2H) position.
4. Turn off the starter switch and disconnect the connector (H–7).

Is there the continuity between the connector terminal (H–7) 5 and
(C–37) 25?

Go to 

Step 7

Go to 

Step 6

6

1. Connect the connector (H–7) and turn on the starter switch.
2. The car stops, the AT selector is the N position, and the brake

is applied.

3. Select the TOD switch to the 4L position.
4. After the transfer has changed to the 4L mode, turn off the

starter switch and disconnect the connector (H–7).

Is there the continuity between the connector terminal (H–7) 5 and
(C–37) 25?

Go to 

Step 7

GND is

short-circuited

between

terminals (C–37)

2 and (H–7) 5.

Repair the circuit.

Go to 

Step 9

7

1. Connect the connector (H–7) and turn on the starter switch.
2. The car stops, the AT selector is the N position, and the brake

is applied.

3. Select the TOD switch to the TOD (or 2H) position.
4. After the transfer has changed to the TOD (or 2H) mode, turn

off the starter switch and disconnect the connector (A–1).

Is there the continuity between the connector terminal (A–1) 12
and GND?

Repair the

transfer.

Go to 

Step 9

Go to 

Step 8

4B2–93

DRIVE LINE CONTROL SYSTEM (TOD)

Step

No

Yes

Action

8

1. Connect the connector (A–1) and turn on the starter switch.
2. The car stops, the AT selector is the N position, and the brake

is applied.

3. Select the TOD switch to the 4L position.
4. After the transfer has changed to the 4L mode, disconnect the

connector (A–1).

Is there the continuity between the connector terminal (A–1) 12
and GND?

GND is

short-circuited

between

terminals (A–1)

12 and (H–7) 5.

Repair the circuit.

Go to 

Step 9

Repair the

transfer.

Go to 

Step 9

9

Check that all the parts are mounted.

Is this step complete?

Verify the repair.

Go to 

Step 9