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Home >> Nissan-Datsun >> 1995 >> Altima GLE, RE4F04A >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests 2.4L >> Miscellaneous Controls >> Rear Window Defogger

Rear Window Defogger

  1. Turn ignition off. Disconnect ECM harness connector. ECM is located under center of instrument panel (connector is located on passenger's side). Turn ignition on.
  2. Measure voltage between ground and ECM terminal No. 55 (Blue/Red wire). With rear window defogger on, battery voltage should exist. With rear window defogger off, zero volts should exist. If voltage is as specified, go to next step. If voltage is not as specified, check rear window defogger relay, time control module, harness, and connectors.
  3. Disconnect and reconnect harness connectors in circuit. Check ECM terminals, harness, and connector terminals for damage, corrosion or improper connection. Repair or replace as necessary.
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