Impreza GT F4-2.5L Turbo (2009)
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:
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Check from the inside of the glass if the liquid crystal thermograph sheet does not change.
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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. Fasten the tester probe on the positive (+) side and negative (-) side to end of positive side of open harness of step 5).
8. Move the tester probe on the negative (-) side slowly along the heat wire. If voltage changes from zero to several volts during movement of tester
probe, heat wire is open at the voltage change point.
9. Repair the heat wire that determines the place of the open circuit. [Ref. to REPAIR, Rear Window Defogger System.]
