LEMON Manuals: Even more car manuals for everyone
Home >> Toyota >> 2004 >> Matrix Base, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 700 (Power Door Lock - Diagnostics) >> Key Lock-In Prevention Function Does Not Work Properly (Manual Operation And Key-Linked Lock Are Available) >> Inspection Procedure

Inspection Procedure

WARNING: This page is about a different car, the 2004 Toyota Camry Solara. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK WIRE HARNESS (MULTIPLEX NETWORK BODY ECU - BODY GROUND) 
    1. Disconnect the B6 ECU connector.
    2. Measure the resistance of the wire harness side connector.
      Fig 1: Checking Multiplex Network Body ECU - Body Ground
      G03049963Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard: 

      Fig 2: Multiplex Network Body ECU - Body Ground Table
      G03049965Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: Go to step   2 
    2. OK: Go to step   4 
  2. INSPECT UNLOCK WARNING SWITCH ASSY 
    1. Remove the unlock warning switch.
    2. Measure the resistance of the switch.
      Fig 3: Inspecting Unlock Warning Switch Assembly
      G03049964Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard: 

      UNLOCK WARNING SWITCH

      Tester Connection Switch Condition Specified Condition
      1 -- 2 Not pushed 10 kΩ or higher
      1 -- 2 Pushed Below 1 Ω
    1. NG: REPLACE UNLOCK WARNING SWITCH ASSY 
    2. OK: Go to Next Step. 
  3. CHECK WIRE HARNESS (UNLOCK WARNING SWITCH ASSY - MULTIPLEX NETWORK BODY ECU AND BODY GROUND) 
    1. Disconnect the U1 switch connector.
    2. Disconnect the B6 ECU connector.
    3. Measure the resistance of the wire harness side connectors.
      Fig 4: Checking Unlock Warning Switch Assy - Multiplex Network Body ECU & Body Ground
      G03049966Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard: 

      SPECIFIED CONDITION

      Tester Connection Specified Condition
      U1-2 - B6-21 (KSW) Below 1 Ω
      U1-1 - Body ground Below 1 Ω
      U1-2 or B6-21 (KSW) - Body ground 10 kΩ or higher
    1. NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 
    2. OK: Go to Next Step. 
  4. CHECK FRONT DOOR COURTESY LAMP SWITCH ASSY (DRIVER SIDE) 
    1. Move the room lamp switch to the DOOR position and open the driver side door. Then check that the room lamp turns ON.

      OK: Room lamp turns ON. 

    1. NG: Go to step   5 
    2. OK: REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSY (MULTIPLEX NETWORK BODY ECU) 
  5. INSPECT FRONT DOOR COURTESY LAMP SWITCH ASSY (DRIVER SIDE) 
    1. Remove the courtesy lamp switch.
    2. Measure the resistance of the switch.
      Fig 5: Inspecting Front Door Courtesy Lamp Switch (Driver Side)
      G03049967Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard: 

      SPECIFIED CONDITION

      Tester Connection Switch Condition Specified Condition
      1 - Body ground Not pushed (ON) Below 1 Ω
      1 - Body ground Pushed (OFF) 10 kΩ or higher
    1. NG: REPLACE FRONT DOOR COURTESY LAMP SWITCH ASSY 
    2. OK: Go to Next Step. 
  6. CHECK HARNESS AND CONNECTOR (FRONT DOOR COURTESY LAMP SWITCH ASSY (DRIVER SIDE) - MULTIPLEX NETWORK BODY ECU) 
    1. Disconnect the D5 switch connector.
    2. Disconnect the B8 ECU connector.
    3. Measure the resistance of the wire harness side connectors.
      Fig 6: Checking Harness & Connector Of Front Door Courtesy Lamp Switch (Driver Side)
      G03049968Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard: 

      SPECIFIED CONDITION

      Tester Connection Specified Condition
      D5-1 - B8-14 (DCTY) Below 1 Ω
      D5-1 or B8-14 (DCTY) - Body ground 10 kΩ or higher
    1. NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 
    2. OK: REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSY (MULTIPLEX NETWORK BODY ECU) 
scientia non olet · About LEMON Manuals