Rear Window Wiper, Faulty

Fault symptoms
Poor window wiper malfunction

Diagnostic help
Check fuse 8 in the car interior and fuse 4 in the engine compartment.

The following values can be read with the diagnostic tool:
- Windscreen washer switch.
- Rear intermittent wiper operation switch
- Intermittent wiper time.
- Rear window wiper parking position

The following function can be activated with the diagnostic tool:
- Rear window wiper, relay

Check the wiring harness
Jiggle the wiring harness in several places and in various directions to detect intermittent open circuits and short circuits in the wiring harness. Watch the multimeter, diagnostic tool or test lamp during the check.