Heated Glass Element: Testing and Inspection
REAR WINDOW DEFOGGER SYSTEMINSPECTION
1. CHECK SYSTEM
NOTE: The rear window defogger system can be customized by using the Subaru Select Monitor.
2. CHECK WITH SUBARU SELECT MONITOR
CAUTION: Before inspection, check if the rear window defogger timer is operating with the initial setting or a customized setting.
1. Using the Subaru Select Monitor, check the input signal while operating the rear window defogger switch.
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 {Current Data Display & Save}.
5. Display the rear window defogger switch data.
2. Turn ON the rear window defogger switch and check if the rear window defogger turns off after 15 minutes or repeats 15 minute activation and 2 minute deactivation.
3. When to OFF in the step 2) above, it is normal. If it repeats 15 minute activation and 2 minute deactivation, replace the body integrated unit.
3. HEAT WIRE INSPECTION
CAUTION: When wiping off the stain on glass with cloth, use a dry and soft cloth and move it in the direction of the heat wire extension to avoid damage to the heat wire.
1. Inspect the following inspection tools.
- Liquid crystal thermograph sheet (size: approx. 300 x 300 mm (11.8 x 11.8 in), heat sensing temperature: approx. 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 on to the outer surface of the rear glass.
NOTE: Use the liquid crystal thermograph sheet to each section divided by parting lines.
5. Check the color of the liquid crystal thermograph sheet to identify the faulty heat wire.
NOTE:
- If the response of the liquid crystal thermograph sheet is not sufficient, try the inspection on the inner surface of the glass.
- The time until color change depends on the glass surface temperature.
6. Wrap the aluminum foil around the tip of each tester probe and push them on to the faulty heat wire.
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. Slowly move the negative (-) tester probe along the heat wire. While moving the tester probe, find an open point where the voltage reading changes from 0.
9. Repair the heat wire that determines the place of the open circuit.