Ascender 2WD L6-4.2L (2003)
Step 16 - 17
Mirrors - Temperature Displays SC or OC
Defogger Grid Lines Diagnosis
Defogger Grid Lines Diagnosis
1. Start the engine.
2. Activate the rear window defogger system.
3. Connect a test lamp to a good ground.
IMPORTANT: The test lamp brilliance will decrease proportionately to the increased resistance in the grid line as the probe is moved from the
battery positive bus wire to the ground bus wire. The test lamp brilliance may vary from one window to another.