Opel Frontera UE. Manual - part 1339

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

D04R100013

SECTION

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

SECTION

DRIVE LINE CONTROL SYSTEM (TOD)

4B2–98

Chart G

The trouble codes are displayed.

Function of circuit

—

Fail condition

Indicator lamp state

TOD switch position

—

D04R100011

SECTION

4B2–99

DRIVE LINE CONTROL SYSTEM (TOD)

Step

Action

Yes

No

1

Disconnect the ECU connector from ECU.

Is there the continuity established between terminals (C–60)7 and
(C–60)25?

Go to 

Step 2

The ECU has

failed. Replace

the ECU.

 Go to 

Step 3

2

Is the self-diagnostic connector short-circuited?

Go to 

Step 3

Open the

self-diagnostic

connector.

 Go to 

Step 3

3

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

Is this step complete?

Verify the repair.

Go to 

Step 3

SECTION