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Home >> Toyota >> 2004 >> Highlander Limited, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 933 (Roof) >> DTC/Circuit Diagnosis >> Sunroof Switch Circuit >> Diagnosis Procedure

Diagnosis Procedure

WARNING: This page is about a different car, the 2013 Nissan Armada. However, it is still accessible from the selected car via links, so may be relevant.

Regarding Wiring Diagram information, refer to "WIRING DIAGRAM ".

  1. CHECK SUNROOF SWITCH INPUT SIGNAL 
    1. Turn ignition switch ON.
    2. Check voltage between sunroof switch connector and ground.
      Connector Terminals Sunroof switch position Voltage (V) (Approx.)
      (+) (-)
      R104 1 2 SLIDE CLOSE 0V
      Other than above Battery voltage
      3 SLIDE OPEN 0V
      Other than above Battery voltage
      4 TILT UP 0V
      Other than above Battery voltage
      6 TILT DOWN 0V
      Other than above Battery voltage
      Fig 1: Checking Voltage Between Sunroof Switch Connector And Ground
      G05382419Courtesy of NISSAN NORTH AMERICA, INC.

      Are the voltage measurements as specified? 

      YES: Sunroof switch is operating normally.

      NO: GO TO 2

  2. CHECK SUNROOF SWITCH CIRCUITS 
    1. Turn ignition switch OFF.
    2. Disconnect sunroof motor assembly connector R4 and sunroof switch connector R104.
    3. Check continuity between sunroof switch connector R104 (A) and sunroof motor assembly connector R4 (B).
      Fig 2: Checking Continuity Between Sunroof Switch Connector R104 (A) And Sunroof Motor Assembly Connector R4 (B)
      G05382420Courtesy of NISSAN NORTH AMERICA, INC.
      A B Continuity
      Connector Terminal Connector Terminal
      R104 1 R4 3 Yes
      2 8
      3 9
      4 4
      6 10
    4. Check continuity between sunroof switch connector R104 (A) and ground.
      A - Continuity
      Connector Terminal
      R104 1 Ground No
      2
      3
      4
      6

      Are the continuity test results as specified? 

      YES: GO TO 3

      NO: Repair harness or connector.

  3. CHECK SUNROOF SWITCH 
    1. Check continuity between sunroof switch terminals.
      Terminals Sunroof switch position Continuity
      1 2 SLIDE CLOSE Yes
      Other than above No
      3 SLIDE OPEN Yes
      Other than above No
      4 TILT UP Yes
      Other than above No
      6 TILT DOWN Yes
      Other than above No
      Fig 3: Checking Continuity Between Sunroof Switch Terminals
      G05382421Courtesy of NISSAN NORTH AMERICA, INC.

      Are the continuity test results as specified? 

      YES: Sunroof switch is operating normally.

      NO: Replace sunroof switch (map lamp assembly). Refer to "REMOVAL AND INSTALLATION ".