Pinpoint Test 4: The Intermittent Wiper Speed Does Not Operate Correctly
PINPOINT TEST 4: THE INTERMITTENT WIPER SPEED DOES NOT OPERATE CORRECTLYStep 1-Step 2:
Step 3-Step 5:
Multifunction Switch, Wiper/Washer Portion Component Test:
Normal Operation
Under normal operation, when any wiper mode except OFF is selected, the multifunction switch provides a combination of grounds to the smart junction box (SJB) through circuits (G/V), (V/W), (L/O) and (BR/W). The SJB interprets this ground combination to determine the desired wiper mode.
Possible Causes
- An open in circuit (G/V), (V/W), (L/O) or (BR/W)
- A short to ground in circuit (G/V), (V/W), (L/O) or (BR/W)
- A short together in circuit (G/V), (V/W), (L/O) or (BR/W)
- Multi-function switch
- Smart junction box SJB