Heated Glass Element: Testing and Inspection
Rear Window Defogger SystemINSPECTION
1. CHECK SYSTEM
NOTE: Rear window defogger system can be customized using the Subaru Select Monitor, when the customize setting {A/C ECM setting} of the body integrated unit is set to With.
2. CHECK WITH SUBARU SELECT MONITOR
CAUTION: Check whether the rear defogger operation mode setting is in initial setting or customize setting before performing inspection.
1. Check the input signal when the rear window defogger switch is operated using Subaru Select Monitor.
1. Prepare the Subaru Select Monitor.
2. Turn the ignition switch to ON (engine OFF) and run the "PC application for Subaru Select Monitor".
3. On [[System Selection Menu]] display, select {Integ. unit mode}.
4. Select the {Rr defogger output} on {Current Data Display & Save}.
5. Check the displayed data (ON/OFF) by operating the rear window defogger switch.
2. Check the operation with rear window defogger switch ON.
- When customize setting is set as "Continuous", it is normal if the 15-minute operation and 2-minute stop repeats.
- When customize setting is "Normal", it is normal if the operation lasts for 15 minutes and then turns OFF.
3. When the operation in 2) above fails, replace the body integrated unit.
3. HEAT WIRE INSPECTION
CAUTION: Use a dry soft cloth to wipe off dirt on the glass along the heat wires with care not to damage the heat wires.
1. Prepare the following checking items.
- Liquid crystal thermograph sheet (Approximate Size: 300 x 300 mm (11.8 x 11.8 in) and thermal temperature: 35 - 40° C (95 - 104° F))
- Aluminum foil
2. Turn the ignition switch to ON.
3. Turn the defogger switch to ON.
4. Push the liquid crystal thermograph sheet from the outside of the rear glass.
NOTE: Use the liquid crystal thermograph sheet every range it is separated with the separate line.
5. Determine the faulty heat wire by checking the color of the liquid crystal thermograph sheet.
NOTE:
- Check from the inside of the glass if the liquid crystal thermograph sheet does not change.
- The time for the color change may differ depends on the surface temperature of the glass.
6. Wrap a piece of aluminum foil around the tip of tester probe and press it against the heat wire with your finger.
7. To both ends of the section that has been found to include an open in the step 5), apply the tester positive (+) probe and the negative (-) probe.
8. Move the tester probe on the negative (-) side slowly along the heat wire. If voltage changes from zero while moving the tester probe, heat wire is open at the voltage change point.
9. Repair the heat wire that determines the place of the open circuit.