Opel Frontera UE. Manual - part 1313

4B1–14 DRIVELINE CONTROL SYSTEM

Fault on Switching from 4WD to 2WD

1. Case that indicator dose not blink nor turn out.

Step

Action

Yes

No

1

Does the indicator lamp turn off at ignition off?

Go to 

Step 2

Short circuit of

the indicator

harness.

2

Is the 4WD switch on 2WD position?

Disconnection on

the 4WD switch

harness or

breakdown of the

4WD switch in

open state.

Trace this chart

from the start

after repair or

replace.

Turn the 4WD

switch to 2WD

position.  Trace

this chart from

the start.

SECTION

4B1–15

DRIVELINE CONTROL SYSTEM

2. When the indicator lamp continues to blink (at

2Hz) after performing Solution 3.

Step

Action

Yes

No

1

Check the air pressure and wear on all tires.

Were problems found?

Perform “Solution

3” after correcting

the tire air

pressure and

replacing worn

tires.

Go to 

Step 2

2

Can the transfer lever be operated from High to 4L or vice versa?

If the motor

actuator harness

was

disconnected,

then repair as

needed and

repeat step 1.

If the transfer

case was not

working properly,

then repair as

needed and

repeat step 1.

If the motor

actuator is

inoperative, then

replace the motor

actuator and

repeat step 1.

Go to 

Step 3

3

1. Disconnect the connector C–47.
2. Turn on the starter switch
3. Measure voltage between the connector C–47 terminals 4 and

3, when 4WD switch on instrument panel is switched on 2WD
and 4WD position.

Is the motor actuator voltage on the axle as “Time Chart of Shifting
Under Normal Condition” aforementioned? Refer to 

the page

(4B–3).

Go to 

Step 7

Go to 

Step 4

4

1. Inspect the wiring for poor electrical connections, open or

short to ground between the connector-terminal C47–1 and
B19–6, C47–2 and ground, H18–1 and B19–12, B19–8 and
C49–3, H17–19 and C49–3, C49–1 and C47–4, C49–2 and
C47–3, and C49–6 and ground.

2. Repair the circuit.

Is the motor actuator voltage on the axle as “Time Chart of Shifting
Under Normal Condition” aforementioned? Refer to 

the page

(4B–3).

Go to 

Step 7

Go to 

Step 5

5

Check the axle switch continuity between the connector C–47
terminals 1 and 2.

Is the axle switch open or close as “Time Chart of Shifting Under
Normal Condition” aforementioned? Refer to 

the page (4B–3).

Go to 

Step 7

Go to 

Step 6

6

Replace the axle motor actuator.

Go to 

Step 7

—

7

Reconnect all components, ensure all components are properly
mounted.

Was this step finished

Trace this chart

from the start.

Go to 

Step 7

SECTION

4B1–16 DRIVELINE CONTROL SYSTEM

3. Case that indicator’s blinking changes to 4Hz

after aforementioned Solution 4 is carried out.

Step

Action

Yes

No

1

Can the transfer lever be operated from High to 4L or vice versa?

If the motor

actuator harness

was

disconnected,

then repair as

needed and

repeat step 1.

If the motor

actuator is

inoperative, then

replace the motor

actuator and

repeat step 1.

If the transfer

case was not

working properly,

then repair as

needed and

repeat step 1.

Faults on the

ECU.  Trace this

chart from the

start after

replace.

SECTION

4B1–17

DRIVELINE CONTROL SYSTEM

Shift On The Fly Electrical Equipment

Axle Shaft Connection and Disconnection

412RY00035

Actuator Assembly

412RY00004

Axle Disconnect Controller

828RY00009

SECTION