Liberty Sport 2WD L4-2.4L VIN 1 (2002)
Heated Glass Element Switch: Testing and Inspection
For circuit descriptions and diagrams, (Refer to Appropriate Wiring Information).
WARNING: ON VEHICLES EQUIPPED WITH AIRBAGS, DISABLE THE AIRBAG SYSTEM BEFORE ATTEMPTING ANY STEERING
WHEEL, STEERING COLUMN, OR INSTRUMENT PANEL COMPONENT DIAGNOSIS OR SERVICE. DISCONNECT AND ISOLATE
THE BATTERY NEGATIVE (GROUND) CABLE, THEN WAIT TWO MINUTES FOR THE AIRBAG SYSTEM CAPACITOR TO
DISCHARGE BEFORE PERFORMING FURTHER DIAGNOSIS OR SERVICE. THIS IS THE ONLY SURE WAY TO DISABLE THE
AIRBAG SYSTEM. FAILURE TO TAKE THE PROPER PRECAUTIONS COULD RESULT IN AN ACCIDENTAL AIRBAG
DEPLOYMENT AND POSSIBLE PERSONAL INJURY.
1. Disconnect and isolate the battery negative cable. Remove the HVAC control head assembly from the instrument panel and unplug the defogger
switch wire harness connector-B.
2. Check for continuity between the ground circuit cavity of the defogger switch wire harness connector and a good ground. There should be
continuity. If OK, go to Step 3. If not OK, repair the open circuit as required.
A/C Heater Control Head (Rear View)
3. Check for continuity between the ground circuit terminal and the rear window defogger switch sense circuit terminal on the back of the defogger
switch housing. There should be momentary continuity as the defogger switch button is depressed, and then no continuity If OK, (Refer to
HEATED GLASS/REAR WINDOW DEFOGGER SWITCH - DIAGNOSIS AND TESTING - INSTRUMENT CLUSTER REAR WINDOW
DEFOGGER FUNCTION) If not OK, replace the faulty switch.
4. Check switch position continuity between:
