Heated Glass Element: Testing and Inspection

Function Test

NOTE:
- Be careful not to scratch or damage the defogger wires with the tester probe.
- Before testing, check the No. 11 (30 A) fuse in the under-hood fuse/relay box and No. 14 (10 A) fuse in the under-dash fuse/relay box.




1. Check for voltage between the vertical dividers and body ground with the ignition switch and defogger switch ON.
There should be voltage as shown.
- If there is no voltage, check for:
- Faulty defogger relay.
- An open in the BLK wire.
- Faulty climate control unit.
- If there is battery voltage, go to step 2.

2. Check for continuity between the negative terminal (B) and body ground. If there is no continuity, check for:
- An open in the BLK wire.
- Poor body ground(G701).

3. Touch the voltmeter positive probe to the halfway point of each defogger wire, and the negative probe to the negative terminal. There should be about 6 V with the ignition switch and the defogger switch ON.
- If the voltage is as specified, the defogger wire is OK.
- If the voltage is not as specified, repair the defogger wire.
- If it is more than 6 V, there is a break in the negative half of the wire.
- If it is less than 6 V, there is a break in the positive half of the wire.