Circuit/System Verification

WARNING: This page is about a different car, the 2010 Cadillac SRX. However, it is still accessible from the selected car via links, so may be relevant.

Ignition ON, observe the scan tool Windshield Washer Switch parameter while pressing and releasing the washer switch. The reading should change between INACTIVE and ACTIVE.
- If the reading does not change between INACTIVE and ACTIVE, refer to Windshield Washer Switch Circuit Test .
Command the Windshield Washer Relay Command ON and OFF with a scan tool. The windshield washers should turn ON and OFF when changing between the commanded states.
- If windshield washers do not turn ON and OFF, refer to the Washer Pump Circuit Test .
Command the Rear Washer Relay Command ON and OFF with a scan tool. The rear washer should turn ON and OFF when changing between the commanded states.
- If the rear washer does not turn ON and OFF, refer to the Washer Pump Circuit Test .
- If the rear washer turns ON and OFF, refer to Rear Washer Switch Circuit Test .
Command the Headlamp Washer Relay Command ON and OFF with a scan tool. The headlamp washers should turn ON and OFF when changing between the commanded states.
- If the headlamp washers do not turn ON and OFF, refer to Headlamp Washer Malfunction .
Verify the windshield washer fluid level is above the minimum level.
- If not above the minimum level, fill the reservoir and inspect for leaks. If the low washer fluid indicator is still ON, refer to Low Washer Fluid Indicator Test .