Opel Frontera UBS. Manual - part 1982

4B2–75

DRIVE LINE CONTROL SYSTEM (TOD)

Chart A

Indicator drive circuit

Function of circuit

The circuit informs the indicator of the working condition of the ECU.

Fail condition

All the TOD indicator lamps and CHECK lamp are lit, and go off momentarily at an

interval of about two seconds.

Indicator lamp status

—

Transfer position

2H, TOD, 4L

—

D04RY00114

DRIVE LINE CONTROL SYSTEM (TOD)

4B2–76

D04RY00115

Step

Action

Yes

No

1

Turn on the starter switch.

Is the battery voltage observed between terminals 1 and 19?

The ECU has

failed. Replace

the ECU.

Go to Step 2

Check the battery

circuit.

Go to Step 2

2

Check that all the parts are mounted.

Is this step complete?

Repeat the

“Diagnosis Flow”.

Return to Step 2

4B2–77

DRIVE LINE CONTROL SYSTEM (TOD)

Chart B–1

The 4WD AUTO switch circuit wires are broken or short-circuited to the GND

Function of circuit

—

Fail condition

Even after the transfer mode is selected from TOD to 2H, the indicator lamp status is not

changed.

Indicator lamp status

—

Transfer position

2H

—

D04RY00114

DRIVE LINE CONTROL SYSTEM (TOD)

4B2–78

D04RY00115