B3874 01

B3874 01

Front Wiper Relay Low Speed Circuit, Short to B+







Fault symptom
- The windscreen wipers do not work at low speed.

On-board diagnosis

Type of diagnosis:
- Continuous

Enable criteria:
- Ignition ON.

Fault criteria:
- Voltage on the control module output exceeds 6 V when windscreen wiper(s) are on.

System reaction to a fault:
- None

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:

Activation:
- Front Wiper Relay Low Speed