Opel Frontera UBS. Service manual — part 2767
8D–268
WIRING SYSTEM
Diagnosis
All Windows Do Not Operate
STEP
ACTION
VALUE(S)
YES
NO
Is the fuse C–4 normal?
Is the circuit breaker C/B–2 normal?
Is B–19 grounded securely?
Disconnect the power window relay connector B–37.
Is the battery voltage applied between harness side
connector B–37 terminal 2 and the ground?
Repair an open circuit between the circuit breaker C/B–2 and
connector B–37 terminal 2.
Is the action complete?
Turn the starter switch on
Is the battery voltage applied between harness side
connector B–37 terminal 1 and the ground?
Repair an open circuit between the fuse C–4 and connector
B–37 terminal 1.
Is the action complete?
Is there continuity between harness side connector B–37
terminal 3 and the ground B–19?
Repair an open circuit between connector B–37 terminal 3
and the ground B–19.
Is the action complete?
–
–
–
Approx. 12V
–
Approx. 12V
–
–
–
Go to
step 2
Go to
step 3
Go to
step 4
Go to
step 6
Go to
step 4
Go to
step 8
Go to
step 6
Replace
the relay
Verify
repair
Replace
the fuse
Replace
the circuit
breaker
Ground it
securely
Go to
step 5
–
Go to
step 7
–
Go to
step 9
–
1
2
3
4
5
6
7
8
9
WIRING SYSTEM
8D–269
Window On The Driver’s Side Does Not Operate
STEP
ACTION
VALUE(S)
YES
NO
Is B–18 grounded securely?
Is there continuity between harness side connector D–5
terminal 1 and the ground B–18?
Repair an open circuit between connector D–5 terminal 1
and the ground B–18.
Is the action complete?
Turn the starter switch on.
Is the battery voltage applied between harness side
connector D–5 terminal 7 and the ground?
Repair an open circuit between connector B–37 terminal 4
and connector D–5 terminal 7.
Is the action complete?
Connect the battery positive terminal with harness side
connector D–5 terminal 5 or 6, and the negative terminal with
harness side connector D–5 terminal 6 or 5.
Does the motor operate?
1. Disconnect the front power window motor–RH connector
D–2.
2. Connect the battery positive terminal with the motor side
connector D–2 terminal 1 or 2, and connect the battery
negative terminal with the motor side connector D–2
terminal 2 or 1.
Does the motor operate?
Repair an open circuit between the front power window &
door lock switch–RH and the front power window motor–RH.
Is the action complete?
–
–
–
Approx. 12V
–
–
–
–
Go to
step 2
Go to
step 4
Go to
step 2
Go to
step 6
Go to
step 4
Replace
the front
power
window &
door lock
switch–RH
Go to
step 8
Verify
repair
Ground it
securely
Go to
step 3
–
Go to
step 5
–
Go to
step 7
Replace
the motor
–
1
2
3
4
5
6
7
8
8D–270
WIRING SYSTEM
Window On The Front Passenger’s Side Does Not Operate
STEP
ACTION
VALUE(S)
YES
NO
Is B–1 grounded securely?
Disconnect the front power window & door lock switch–LH
connector D–14.
Is there continuity between harness side connector D–14
terminal 7 and the ground B–1?
Repair an open circuit between connector D–14 terminal 7
and the ground B–1.
Is the action complete?
Turn the starter switch on.
Is the battery voltage applied between harness side
connector D–14 terminal 5 and the ground?
Repair an open circuit between connector B–37 terminal 4
and connector D–14 terminal 5.
Is the action complete?
Connect the battery positive terminal with harness side
connector D–14 terminal 10 or 1, and connect the battery
negative terminal with harness side connector D–14 terminal
1 or 10.
Does the motor operate?
1. Disconnect the front power window motor–LH connector
D–11.
2. Connect the battery positive terminal with the motor side
connector D–11 terminal 1 or 2, and connect the battery
negative terminal with the motor side connector D–11
terminal 2 or 1.
Does the motor operate?
Repair an open circuit between the front power window &
door lock switch–LH and the front power window motor–LH.
Is the action complete?
–
–
–
Approx. 12V
–
–
–
–
Go to
step 2
Go to
step 4
Go to
step 2
Go to
step 6
Go to
step 4
Replace
the front
power
window &
door lock
switch–LH
Go to
step 8
Verify
repair
Ground it
securely
Go to
step 3
–
Go to
step 5
–
Go to
step 7
Replace
the motor
–
1
2
3
4
5
6
7
8
WIRING SYSTEM
8D–271
Rear Window On The Left (or Right) Side Does Not Operate
STEP
ACTION
VALUE(S)
YES
NO
1. Disconnect the rear power window switch–LH connector
D–22 or the rear power window & door lock switch–RH
connector D–27.
2. Turn the starter switch on.
Is the battery voltage applied between harness side
connector D–22 terminal 4 and the ground, or harness side
connector D–27 terminal 4 and the ground?
Repair an open circuit between connector B–37 terminal 4
and connector D–22 terminal 4 or connector D–27 terminal 4.
Is the action complete?
Is there continuity between harness side connector D–22
terminal 3 and the ground, or harness side connector
D–27 terminal 3 and the ground?
Repair an open circuit between connector D–22 terminal 3 or
connector D–27 terminal 3 and the ground.
Is the action complete?
Connect the battery positive terminal with harness side
connector D–22 terminals 5 or harness side connector D–27
terminal 5, and connect the battery negative terminal with
harness side connector D–22 terminal 6 or harness side
connector D–27 terminal 6.
Does the motor operate?
1. Disconnect the rear power window motor connector D–20
or D–25.
2. Connect the battery positive terminal with motor side
connector D–20 or D–25 terminal 1 or 2, and connect the
battery negative terminal with the motor side connector
D–20 or D–25 terminal 2 or 1.
Does the motor operate?
Repair an open circuit between the rear power window
switch and the rear power window motor.
Is the action complete?
Approx. 12V
–
–
–
–
–
–
Go to
step 3
Go to
step 1
Go to
step 5
Go to
step 3
Replace
the rear
power
window
switch–LH
or –RH
Go to
step 7
Verify
repair
Go to
step 2
–
Go to
step 4
–
Go to
step 6
Replace
the motor
–
1
2
3
4
5
6
7
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