REC / B3720 06
Read the instructions below then
start the fault diagnostic procedure.
In the event of a short-circuit to ground, the rear window wiper runs constantly.
In the event of an open-circuit, the rear window wiper does not work.
On-board diagnosis
Type of diagnosis:
Enable criteria:
Fault criteria:
| Voltage on the control module output exceeds 6 V when the rear window wiper is not running. |
System reaction to a fault:
Checking the wiring harness
Move the wiring harness at several spots and in several directions to reveal intermittent breaks and short-circuits. Check switches, connectors and crimp connections for oxidation, retracted pins and pin clamping force.
Diagnostic help
Diagnosis regards:
| Electrical fault in connecting leads or component. |
Functions in the diagnostic tool related to the fault:
