Opel Frontera UBS. Manual - part 1033

DRIVE LINE CONTROL SYSTEM (TOD)

4B2–72

Check flow

Trouble code

Phenomenon

Standard

14

25

The CHECK lamp indicator line is

short–circuited to the battery.

—

35

The line is broken or short–circuited

to GND.

—

D04RY00063

4B2–73

DRIVE LINE CONTROL SYSTEM (TOD)

Step

Action

Yes

No

1

1. Turn on the starter switch.

Is the CHECK lamp always turned on?

Go to Step 2

Go to Step 3

2

1. Turn off the starter switch.
2. Disconnect the ECU connector.
3. Turn on the starter switch.

Is the CHECK lamp always turned on?

The CHECK

circuit is

short-circuited to
GND. Repair the

circuit.

Go to Step 7

The ECU has

failed. Replace

the ECU.

Go to Step 7

3

Turn on the starter switch.

Is the CHECK lamp always turned off?

Go to Step 4

Go to Step 6

4

Turn on the starter switch.

Is the battery voltage observed between terminals 30 and 19?

Go to Step 5

The CHECK

circuit wires are

broken or the

CHECK lamp is

failed. Repair the

circuit.

Go to Step 7

5

Turn off the starter switch.

Is the battery voltage observed between terminals 30 and 19?

The battery is

short–circuited.

Repair the

CHECK lamp

circuit.

Go to Step 7

The ECU has

failed. Replace

the ECU.

Go to Step 7

6

Turn on the starter switch.

Does the CHECK lamp go off two seconds after?

The phenomenon

is not

reproduced.Refer

to “Troubles

intermittently

observed”.

Go to Step 7

7

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

Is this step complete?

Repeat the

“Diagnosis Flow”.

Return to Step 7

DRIVE LINE CONTROL SYSTEM (TOD)

4B2–74

Trouble Diagnosis Depending on The
Status of TOD Indicator

Functional check with TOD indicator light is conducted
prior to check on Charts A–H.

D

After the starter is switched on, check and see if the
status has become as tabulated below.

C07RW012–1

D

If the status is as tabulated above, there is no
problem.  If not as tabulated above, inspect the
harness.

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