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Home >> Jeep >> 2004 >> Wrangler SE, Automatic >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Body Diagnostic Procedures >> Diagnostic Information And Procedures >> Electrically Heated System >> Symptom: *REAR WINDOW DEFOGGER SWITCH INDICATOR LAMP INOPERATIVE >> Diagnostic Procedure

Diagnostic Procedure

REAR WINDOW DEFOGGER SWITCH INDICATOR LAMP INOPERATIVE - DIAGNOSTIC PROCEDURE

TEST ACTION APPLICABILITY
1 Inspect Fuse Block fuse #17.
Is Fuse Block fuse #17 open?
  1. Yes : Go To 2
  2. No : Go To 3
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2 Turn the ignition off.
Disconnect the Rear Defogger Switch.
Measure resistance of the Fused Rear Window Defogger Relay Output circuit to ground.
Is the resistance below 5.0 ohms?
  1. Yes : Repair the Fused Rear Window Defogger Relay Output circuit for a short to ground condition.

    Perform BODY VERIFICATION TEST .

  2. No : Replace Fuse Block fuse #17.

    Perform BODY VERIFICATION TEST .

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3 Turn the ignition off.
Disconnect the Rear Defogger Switch.
Remove the Rear Window Defogger Relay.
Ensure that Fuse Block fuse #17 is installed.
Measure resistance of the Fused Rear Window Defogger Relay Output circuit from the relay output terminal to the Defogger Switch connector.
Is the resistance below 5.0 ohms?
  1. Yes : Replace the Rear Window Defogger Switch.

    Perform BODY VERIFICATION TEST .

  2. No : Repair the Fused Rear Window Defogger Relay Output circuit for an open condition.

    Perform BODY VERIFICATION TEST .

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