FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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90A2






90A2-WASHER FLUID LEVEL SWITCH CIRCUIT HIGH





For a complete wiring diagram, Refer to the Wiring Information Electrical Diagrams.






1. CHECK FOR ACTIVE DTC
1. Turn the ignition on.
2. With the scan tool, read DTCs.

Is the DTC active?

Yes

- Go To 2

No

- The condition that caused this code to set is not present at this time. Check for an intermittent condition by inspecting the related wiring harness for chaffed, pierced, pinched, and partially broken wires. Also inspect the related connectors for broken, bent, pushed out, spread, corroded, or contaminated terminals.

2. WASHER FLUID LEVEL SWITCH
1. Turn the ignition off.
2. Disconnect the Washer Fluid Level Switch harness connector.
3. Connect a jumper wire between the Washer Fluid Level Switch circuits in the harness connector.
4. Turn the ignition on.
5. With the scan tool, read DTCs.

Is the DTC active?

Yes

- Go To 3

No

- Replace the Washer Fluid Level Switch.
- Perform the BODY VERIFICATION TEST Body Verification Test.

3. WASHER FLUID LEVEL SWITCH SIGNAL CIRCUIT OPEN
1. Turn the ignition off.
2. Disconnect the BCM C9 harness connector.
3. Measure the resistance of the Washer Fluid Level Switch Signal circuit.

Is the resistance above 10K ohms?

Yes

- Repair the Washer Fluid Level Switch Signal circuit for an open.
- Perform the BODY VERIFICATION TEST Body Verification Test.

No

- Go To 4

4. WASHER FLUID LEVEL SWITCH RETURN CIRCUIT OPEN
1. Measure the resistance of the Washer Fluid Level Switch Return circuit.

Is the resistance above 10K ohms?

Yes

- Repair the Washer Fluid Level Switch Return circuit for an open.
- Perform the BODY VERIFICATION TEST Body Verification Test.

No

- Replace the BCM.
- Perform the BODY VERIFICATION TEST Body Verification Test.