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Home >> Toyota >> 2012 >> Sienna SE >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Seats >> Auto Access Seat System (Diagnostic Codes & Symptom Tests) >> Auto Access Seat System >> DTC 14: Outward Slide Motor Malfunction >> Procedure

DTC 14: Outward Slide Motor Malfunction: Procedure

  1. CHECK HARNESS AND CONNECTOR (POSITION CONTROL ECU ASSEMBLY) 
    1. Disconnect the Q13 power seat motor assembly (outward slide motor) connector.
      Fig 1: Checking Q13 Power Seat Motor Assembly (Outward Slide Motor)
      GTY303091Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Switch Condition Specified Condition
      Q13-1 (OMFR) - Body ground No. 2 power seat switch assembly (egress switch) off → on Below 1 V → 11 to 14 V
      Q13-2 (OMRR) - Body ground No. 2 power seat switch assembly (ingress switch) off → on Below 1 V → 11 to 14 V
      TEXT IN ILLUSTRATION

      *a Front view of wire harness connector
      (to Power Seat Motor Assembly (Outward Slide Motor))
    3. Reconnect the power seat motor assembly (outward slide motor) connector.

    NG → See step   2 

    OK → See step   3 

  2. CHECK HARNESS AND CONNECTOR (POSITION CONTROL ECU ASSEMBLY - OUTWARD SLIDE MOTOR) 
    1. Disconnect the Q4 position control ECU assembly connector.
    2. Disconnect the Q13 power seat motor assembly (outward slide motor) connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      Q4-12 (SLIN) - Q13-2 (OMRR) Always Below 1 Ω
      Q4-13 (SLOT) - Q13-1 (OMFR) Always Below 1 Ω
      Q4-12 (SLIN) - Body ground Always 10 kΩ or higher
      Q4-13 (SLOT) - Body ground Always 10 kΩ or higher
    4. Reconnect the power seat motor assembly (outward slide motor) connector.
    5. Reconnect the position control ECU assembly connector.

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK → See step   4 

  3. REPLACE POWER SEAT MOTOR ASSEMBLY (OUTWARD SLIDE MOTOR). Refer to  DISASSEMBLY 
  4. REPLACE POSITION CONTROL ECU ASSEMBLY. Refer to  DISASSEMBLY