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Power Mirror Defogger Test

NOTE: Before testing, check the No. 10, No. 55, No. 59 and No. 60 fuses in the under-dash fuse/relay box.
[ ]: Without retractable power mirror
  1. Disconnect the power mirror 13P [6P] connector.
  1. Turn the ignition switch to ON (II).
  1. Measure the voltage between the power mirror 13P [6P] connector No. 2 [No. 1] terminal and body ground with the rear window defogger switch/power mirror defogger switch ON.
    There should be battery voltage.
    • If there is no voltage, check for:
    • -
      Faulty rear window defogger switch/power mirror defogger switch
      -
      Faulty rear window defogger relay
      -
      An open in the wire.
      -
      Poor ground (G502)
    • If there is battery voltage, go to Step 5 .
  1. Check for continuity between the power mirror 13P [6P] connector No. 7 [No. 3] terminal and body ground.
    There should be continuity.
    • If there is no continuity, check for:
    • -
      An open in the wire.
      -
      Poor ground (G501, G502)
    • If there is continuity, go to Step 6 .

  1. Check for an open in the wire between the power mirror 13P [6P] connector and the mirror defogger terminals (A). If the wire harness is OK, replace the mirror holder.