Opel Frontera UE. Manual - part 691

 

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Opel Frontera UE. Manual - part 691

 

 

4B–6

DRIVELINE CONTROL SYSTEM

Functions of Indicator Lamp

Indication of vehicle condition : Indicator lamp is 
controlled by ECU of shift on the fly and shows vehicle 
conditions as below.

Bulb check :The bulb of indicator lamp is checked for 2 
seconds when ignition key is turned on.

Time Chart of Bulb Checking

F04RW004

Retrials from 2WD to 4WD :In cold weather or under 
high speed condition, the gear shifting (engagement) 
sometimes dose not complete by 3 trials.  In such case, 
the indicator lamp inform driver of this incident as 
aforementioned chart (shown at Retrial in Outline of 
shift on the fly system.)

Indicator

Vehicle condition

4WD switch

Transfer position 

switch

Front axle switch

Off

2WD

Off (Close)

2WD (Open)

2WD (Open)

On

4WD

On (Open)

4WD (Close)

4WD (Close)

Blink (2Hz)

Operating

On (Open)

4WD (Close)

2WD (Open)

Off (Close)

2WD (Open)

4WD (Close)

Blink (4Hz)

Stop operating

On (Open)

2WD (Open)

2WD (Open)

Off (Close)

4WD (Close)

4WD (Close)

DRIVELINE CONTROL SYSTEM

4B–7

Diagnosis

Before Judging That Troubles Occur 
(Unfaulty mode)

When Switching from 2WD to 4WD

1. In case that blinking frequency of the 4WD 

indicator changes from 2Hz to 4Hz.
When heavy synchronization load is needed, the 
motor actuator tries the shifting transfer gear three 
times including the activation shifting. While the 
motor actuator tries shifting, the indicator blinks by 
2Hz.  If the third shifting fails, the indicator's blinking 
changes from 2Hz to 4Hz at the same time that the 
motor actuator shifted back to 2WD.
Heavy synchronization load occurs by

• extremely lower temperature.

• higher speed.rotation difference of wheels during 

cornering.

Solution 1: Operate again after stop the vehicle 
or slow down.

2. In case that the 4WD indicator continues 

blinking by 2Hz for more than 11.5 seconds.
When there is rotation difference of wheels or there 
is phase difference between front wheels and axles, 
it is difficult to connect front wheels to front axles.  
The blinking by 2Hz shows that shifting the transfer 
gear or connecting the front wheels is in the middle 
of operating.  In above case, the indicator's blinking 
by 2Hz shows that connecting the front wheels is 
not completed (because the indicator's blinking 
changes to 4Hz when the shifting transfer gear is 
impossible.).  And removal of rotation or phase 
difference make connecting the front wheels 
possible.
Solution 2: When vehicle is running, drive 
straight ahead while accelerating and 
decelerating.  When vehicle is at a stop, move 
the vehicle forward and backward from 2 to 3 
meters.

When Switching from 4WD to 2WD

1. In case that the 4WD indicator continues 

blinking by 2Hz .
The 4WD indicator continues blinking by 2Hz until 
both shifting the transfer gear and disconnecting the 
front wheels are completed when switching 4WD to 
2WD.  When drive line is loaded with torsional 
torque, the shifting transfer gear and disconnecting 
front wheels are impossible.  In this case, removal of 
torsional  torque on drive line make the shifting 
transfer gear and disconnecting front wheels 
possible.
Solution 3: When vehicle is running, drive 
straight ahead while accelerating and 
decelerating.  When vehicle is at a stop, move 
the vehicle forward and backward from 2 to 3 
meters.

2. In case that the 4WD indicator's blinking changes 

from 2Hz to 4Hz.
Check the position of transfer lever. Is it at “4L" 
position?  In view of the shifting mechanism of 
transfer, the gear shifting from 4WD to 2WD at “4L" 
condition is impossible.
Solution 4: Push the 4WD switch to 4WD, shift 
the transfer lever to “High" position and re-
operate the 4WD switch to 2WD.

4B–8

DRIVELINE CONTROL SYSTEM

Parts Location

D08RX290

Legend

EndOFCallout

(1) Battery
(2) Relay & Fuse Box (Engine Room)
(3) H–32
(4) Relay & Fuse Box (Instrument Panel)
(5) I–19
(6) I–1
(7) I–2
(8) B–8
(9) B–19

(10) C–32

(11) H–15
(12) C–16
(13) C–31
(14) H–18
(15) H–9 (X22SE)
(16) C–15
(17) M–21
(18) H–9 (6VD1), H–10
(19) M–11, M–12

DRIVELINE CONTROL SYSTEM

4B–9

Wiring Diagram – 1

D08RX272

 

 

 

 

 

 

 

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