| | Results of the tests |
| 1 | FUSE CHECK | All OK | Problems met | Operation |
|---|
| Check
the condition of the rear wiper motor power supply fuse. | Continue to Step 2 | Fuse blown | Change fuse |
| 2 | CHECKING RELAY | All OK | Problems met | Operation |
|---|
| Check
the condition of the rear wiper motor power supply control relay. | Continue to Step 3 | Relay faulty | Change relay |
| 3 | CHECKING STEERING COLUMN SWITCH
UNIT | All
OK | Problems
met | Operation |
|---|
| Check
the stalk unit is properly supplied with power See E3021 REAR WINDOW WASH/WIPE | Continue to Step 4 | Electrical connection between
facia control unit and stalk unit broken or not insulated. | Restore connection/insulation
of the electrical connection between facia control unit and stalk
unit See E3021 REAR WINDOW WASH/WIPE |
| 4 | CHECKING ELECTRICAL CIRCUIT | All OK | Problems met | Operation |
|---|
| Disconnect
the electrical connection on the rear wiper motor side and check
for a rear wiper control signal from the stalk unit. See E3021 REAR WINDOW WASH/WIPE | Continue to Step 10 | No signal from the stalk
unit | Continue
to Step 5 |
| 5 | CHECKING ELECTRICAL CIRCUIT | All OK | Problems met | Operation |
|---|
| Check
continuity/insulation of electrical connection between stalk unit
and rear wiper motor. | Continue to Step 9 | Electrical connection broken
or not insulated | Continue to Step 6 |
| 6 | CHECKING ELECTRICAL CIRCUIT | All OK | Problems met | Operation |
|---|
| Check
continuity/insulation of electrical connection between stalk unit
and facia control unit. See E3021 REAR WINDOW WASH/WIPE | Continue to Step 7 | Electrical connection broken
or not insulated | Restore continuity/insulation of electrical connection.
Check continuity/insulation of electrical connection between facia
control unit and rear wiper motor. See E3021 REAR WINDOW WASH/WIPE |
| 7 | CHECKING ELECTRICAL CIRCUIT | All OK | Problems met | Operation |
|---|
| Check
continuity/insulation of electrical connection between facia control
unit and rear wiper motor. See E3021 REAR WINDOW WASH/WIPE | Continue to Step 8 | Electrical connection broken
or not insulated | Restore continuity/insulation of electrical connection.
See E3021 REAR WINDOW WASH/WIPE |
| 8 | CHECKING CORRECT OPERATION | All OK | Problems met | Operation |
|---|
| Check
that the fault is no longer present | End of diagnosis | Fault persists | Change body computer node Op. 5505A32 |
| 9 | CHECKING CORRECT OPERATION | All OK | Problems met | Operation |
|---|
| Check
that the fault is no longer present | End of diagnosis | The fault persists | Replace the stalk unit Op. 5550A10 |
| 10 | CHECKING CORRECT OPERATION | All OK | Problems met | Operation |
|---|
| Check
that the fault is no longer present | End of diagnosis | The fault persists | Replace the windscreen wiper
motor Op. 5050C42 Search for the fault starting
from another symptom' |
