Heated Glass Element: Testing and Inspection

REAR WINDOW DEFOGGER

ON-VEHICLE SERVICE

PRINTED-HEATER LINE CHECK
1. Run engine at 2,000 r/min. Check heater element with battery fully charged.
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 about 6 V.

3. If 12 V 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 V.

4. If 0 V is indicated at A, there is a break in the positive terminal side. Detect where the voltage changes suddenly (12 V) in the same method described above.