Lockout Switch Malfunction
- Ignition OFF, disconnect the harness connector at the appropriate rear window switch.
- Connect a test lamp between the control circuit terminal 5 and ground.
- Ignition ON, command the rear window lockout ON and OFF by pressing and depressing the lockout switch on the master window switch. The test lamp should turn ON and OFF when changing between the commanded states.
- If the test lamp is always ON, test the control circuit for a short to voltage If the circuit tests normal, replace the master window switch.
- If the test lamp is always OFF, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the master window switch.
- If all circuits test normal, replace the rear window switch.