Heated Glass Element: Testing and Inspection
REAR WINDOW DEFOGGERPRINTED-HEATER LINES CHECK
1. Run engine at 2,000 r/min. Check heater element with battery at full.
2. Turn "ON" rear window defogger switch. Measure heater element voltage with a voltmeter at rear window glass center A. Condition is good if it indicates approximately 6 volts.
3. If 12 volts is indicated at A, there is a break to the negative terminal side. Move test bar slowly to negative terminal to detect where voltage suddenly changes to 0 volt.
4. If 0 volt is indicated at A, there is a break to the positive terminal side. Detect where the voltage changes suddenly (12 volts) in the same method described above.