Opel Frontera UE. Manual - part 1311

 

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Opel Frontera UE. Manual - part 1311

 

 

4B1–6 DRIVELINE CONTROL SYSTEM

Functions of Indicator Lamp

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

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)

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 :Sometimes shifting from
2WD to 4WD may not occur when in severe cold weather
conditions or under high speed conditions. Should this
occur, the 4WD indicator lamp will flash continously until
the driver disengages the 4WD operation (see Retrial for
more information).

SECTION

4B1–7

DRIVELINE CONTROL SYSTEM

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 repeats the transfer gear shifting up to
3 times. The 4WD indicator lamp will blink (2Hz) while
the motor actuator attempts shifting. If after the 3rd
attempt the shifting fails, the 4WD indicator lamp will
blink faster (4Hz) and the motor actuator will return to
2WD mode.
Heavy synchronization load occurs when:

D

At severe low temperatures. 

D

Higher rotational difference in speed between the
front wheels and axles during cornering. 

Solution 1: Attempt the 4WD mode again at a
lower speed or when the vehicle is at a stop. 

2. In case that the 4WD indicator continues blinking

at 2Hz for more than 11.5 seconds.
When there is rotational difference in speed between
the front wheels and axles, the front wheels and the
front axles may have difficulty engaging. The blinking
4WD indicator lamp (at 2Hz) will indicate that the
transfer case is shifting into the 4WD mode, however
it will blink faster (4Hz) if shifting into 4WD mode is
impossible, unless rotational difference and phase
difference does not exist.
Solution 2: If the vehicle is moving, drive the
vehicle straight while accelerating and
decelerating, and if the vehicle is at a stop, move
the vehicle forward and backward for 2 to 3
meters. 

When Switching from 4WD to 2WD

1. When the 4WD indicator lamp continues to blink

(at 2Hz). 
The 4WD indicator lamp continues to blink (at 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 makes the shifting
transfer gear and disconnecting front wheels
possible.
Solution 3: If the vehicle is moving, drive the
vehicle straight while accelerating and
decelerating, and if the vehicle is at a stop, move
the vehicle forward and backward for 2 to 3
meters. 

2. When the 4WD indicator lamp blinking pattern

changes (from 2Hz to 4Hz). 
Check the position of the transfer lever. Is it in the “4L”
position? Shifting from 4WD to 2WD while at “4L” will
not occur.
Solution 4: Push the 4WD switch ON (to 4WD),
then shift the transfer lever to the “High” position
and push the 4WD switch Off (to engage to 2WD).

SECTION

4B1–8 DRIVELINE CONTROL SYSTEM

Parts Location

828R100003

Legend

(1) C–36
(2) H–18
(3) I–19
(4) I–1
(5) C–49
(6) B–8
(7) B–19

(8) H–15, H–17
(9) C–55

(10) C–16

(11) H–6

(12) E–60
(13) E–56, E–57
(14) E–30

SECTION

4B1–9

DRIVELINE CONTROL SYSTEM

Wiring Diagram

D04R100026

SECTION

 

 

 

 

 

 

 

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