Component Testing
WARNING: This page is about a different car, the 2008 GMC Sierra, 2008 GMC Cab & Chassis Sierra, 2008 Chevrolet Silverado, and 2008 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Heated Washer Fluid Switch
- Ignition OFF, disconnect the harness connector at the instrument panel accessory switch assembly.
- Test for infinite resistance between the switch signal circuit terminal 7 and the ground circuit terminal 3 with the switch in the open position.
- If less than infinite, replace the accessory switch assembly.
- Test for less than 3 ohms between the switch signal circuit terminal 7 and the ground circuit terminal 3 with the switch in the closed position.
- If greater than 3 ohms, replace the accessory switch assembly.