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HOMESERVICE MANUALSCHEVROLET2008COBALT LS, 4D SEDAN, STANDARDREPAIR AND DIAGNOSISBODY & FRAMEWINDOWSFIXED & MOVEABLE WINDOW SYSTEMSDIAGNOSTIC INFORMATION AND PROCEDURESREAR WINDOW DEFOGGER MALFUNCTIONCIRCUIT/SYSTEM VERIFICATION
2008 Chevrolet Cobalt LS, 4D Sedan, Standard

Circuit/System Verification

2008 Chevrolet Cobalt LS, 4D Sedan, StandardSECTION Circuit/System Verification
  1. Ignition ON, observe the scan tool Rear Defog Relay Cmd parameter while pressing the rear window defogger switch. The parameter should change between On and Off.
    • If the value does not change between the commanded states, refer to Rear Window Defogger Switch Malfunction in Circuit/System Testing .
  2. Command the Rear Defog Relay ON and OFF with a scan tool. The rear window defogger and rear window defogger indicator should turn ON and OFF when changing between the commanded states.
    • If the rear window defogger does not turn ON and OFF when changing between the commanded states, refer to Rear Defogger Malfunction in Circuit/System Testing .
    • If the Defogger Indicator is always ON or always OFF, refer to Rear Defogger Indicator Malfunction in Circuit/System Testing .
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