Heated Glass Element: Testing and Inspection

PRINTED-HEATER LINE 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 circuit tester 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.