Heated Glass Element Switch: Testing and Inspection

INSPECT DEFOGGER SWITCH CIRCUIT
Connector disconnected:
Disconnect the connector from the switch and inspect the connector on the wire harness side, as shown in the chart.




If the circuit is as specified, replace the switch.




INSPECT DEFOGGER SWITCH CIRCUIT
Connector connected:
Connect the connector from the switch and inspect the wire harness side connector from the back side, as shown in the chart.




If the circuit is as specified, try replacing the switch with a new one.
If the circuit is not as specified, inspect the circuit connected to other parts.