Operation CHARM: Car repair manuals for everyone.

Heated Glass Element: Testing and Inspection




Heated Windshield Wiper Area Function Test

Before troubleshooting the heated windshield wiper area circuit, do the multiplex integrated control system troubleshooting using B-CAN System Diagnosis Test Mode A. Troubleshooting - B-CAN System Diagnosis Test Mode A

NOTE: Before testing, check the No. 14 (20 A) fuse in the under-hood fuse/relay box, No. 30 (10 A) fuse in the under-dash fuse/relay box and the heated windshield wiper area relay in the under-hood fuse/relay box.

1. Disconnect the heated windshield wiper area relay from the under-hood fuse/relay box.

2. Remove the glove box. Glove Box Removal/Installation

3. Disconnect the heated windshield wiper area 2P connector.

4. Check for continuity between heated windshield wiper area relay 4P socket terminal No. 1 and front window defogger 2P connector terminal No. 1.

5. There should be continuity.
- If there is no continuity, check for:
- An open in the BLK/YEL wire between the heated windshield wiper area relay and heated windshield wiper area.

- If there is continuity, go to step 6.





6. Check for continuity between heated windshield wiper area 2P connector terminal No. 2 and body ground.

7. If there is no continuity, check for an open in the wiper or poor ground (G402).
- If there is continuity, check for:
- Faulty climate control unit (or heater control panel).

- An open in the heated windshield wiper area wire. Repair the heated windshield wiper area wire or replace the windshield.