| Complaint/Problem |
Possible cause |
Test step/Remedy |
| Front windshield wiper system does
not function. |
Combination switch (S4)
Wiper motor (M6/1) |
23a  1.0,
23a 5.0,
Wiring. |
| Front windshield wiper system does
not function in wash mode. |
Wiper motor (M6/1) |
23a 5.0 |
| Washer pump does not function during
wash function. |
Windshield washer pump (M5/1) |
23a 6.0 |
| Front windshield wiper system does
not function in wipe stage 1 or stage 2 |
Combination switch (S4)
Wiper motor (M6/1) |
23a 1.0,
23a 5.0 |
| Front windshield wiper system does
not function in interval wipe mode. |
Combination switch (S4)
All Activity Module (N10) |
23a 3.0 |
| Front windshield wiper does not stop
in park position when turned OFF |
Cam switch in wiper motor (M6/1) |
23a 4.0 |
| Rear window wiper system does
not function |
Rear window wiper/washer switch (S78)
All Activity Module (N10) |
23a 9.0 |
| Rear window wiper does not function |
Rear window wiper/washer switch (S78)
Tailgate window wiper motor (M6/4) |
23a 9.0,
23a 10.0 |
| Rear window wiper does not function
when in wash mode |
Rear window wiper/washer switch (S78) |
23a 9.0 |
| Rear window wiper does not turn OFF |
Relay on tailgate window wiper motor
(M6/4)
Cam switch |
23a 8.0,
Wiring. |
| Rear window wiper does not complete
one wipe cycle |
Cam switch on tailgate window wiper
motor (M6/4) |
23a 8.0 |
| Rear window washer pump (M5/3) does
not function during the wash rear window mode |
Rear window wiper/washer switch (S78)
Rear window washer pump (M5/3) |
23a 9.0,
23a 7.0 |
| Complaint/Problem |
Possible cause |
Test step/Remedy |
| Interior Lighting does not function. |
Wiring. |
Circuit 30, voltage supply |
Interior lighting does not turn OFF
when ignition is turned ON,
or does not turn ON when ignition is turned OFF. |
All Activity Module (N10). |
N10 |
Functional problems when in "Automatic
ON" mode,
i.e. when opening doors: |
|
|
| When opening one of the front doors,
the entire interior lighting system does not come ON. |
Left front door rotary tumbler microswitch
(S87/7),
Right door rotary tumbler microswitch (S87/6),
All Activity Module (N10). |
23b 4.0,
Wiring,
N10 |
| When opening one of the rear doors,
the rear interior lighting does not come ON. |
Left rear door rotary tumbler microswitch
(S87/2),
Right rear door rotary tumbler microswitch (S87/3),
All Activity Module (N10). |
23b 5.0,
Wiring,
N10 |
| When opening the front doors, the
front dome lamp (with shut-off delay and front reading lamp) (E15/2) does
not come ON. |
Front dome lamp (with shut-off delay
and front reading lamp) (E15/2). |
23b 1.0,
E15/2 |
| Left rear dome lamp (E15/8) does
not come ON when opening the doors. |
Left rear dome lamp (E15/8),
All Activity Module (N10). |
If E15/9 ok, then check:
23b 2.0 |
| Right rear dome lamp (E15/9) does
not come ON when opening the doors. |
Right rear dome lamp (E15/9),
All Activity Module (N10). |
If E15/8 ok, then check:
23b 2.0 |
| Functional problems of individual
interior lamps when in "Automatic ON" mode or with manual ON mode: |
|
|
| Front dome lamp (with shut-off delay
and front reading lamp) (E15/2) does not function. |
Front dome lamp (with shut-off delay
and front reading lamp) (E15/2). |
Wiring,
E15/2 |
| Left rear dome lamp (E15/8) does
not function. |
Left rear dome lamp (E15/8). |
Wiring,
E15/8 |
| Right rear dome lamp (E15/9) does
not function. |
Right rear dome lamp (E15/9). |
Wiring,
E15/9 |
| Interior lamps do not illuminate
when unlocking vehicle via central locking mode. |
|
If central locking functions ok:
Wiring,
N10 |
| Functional problem with rear dome
lamp (E15/3): |
|
|
| Rear dome lamp (E15/3) does not function |
Rotary tumbler/trunk lid microswitch
(S88/1),
Rear dome lamp (E15/3) |
23b 3.0,
23b 6.0 |
| Complaint/Problem |
Possible cause |
Test step/Remedy |
| Heated rear window does not function. |
Heated rear window switch (S21s9),
All Activity Module (N10). |
23c 2.0,
Wiring,
N10 |
| Heated rear window does not function,
however the indicator lamp is illuminated. |
Rear window defroster element (R1),
Rear window defroster relay (F1k1),
Antenna splitter (A2/5). |
23c 1.0 |
| Heated rear window functions, however
the indicator lamp is not illuminated. |
Convenience Feature (CF),
Heated rear window indicator lamp (S21e2) |
23c 3.0,
Wiring. |
| Automatic shut-off of heated rear
window does not function. |
All Activity Module (N10) |
Heated rear window shuts OFF after
12 minutes, if OK:
N10 |
Printable
version
