Inspection Procedure

HINT:

Start the inspection from step 1 when using the Techstream and start from step  2 when not using the Techstream.

1. READ VALUE ON TECHSTREAM (FRONT DOOR COURTESY LIGHT SWITCH) 
   1. Connect the Techstream to the DLC3.
   2. Turn the ignition switch on (IG) and turn the Techstream main switch on.
   3. Select the items below in the "DATA LIST" and read the display on the Techstream.

      BODY: 

      DATA LIST
      
      

      Item	Measurement Item/Display (Range)	Normal Condition
      D DOR CTY SW	Driver side door courtesy light switch/ON or OFF	ON: Door is open OFF: Door is closed
      P DOR CTY SW	Passenger side door courtesy light switch/ON or OFF	ON: Door is open OFF: Door is closed

      OK: 

      When each front door is opened/closed, the display will change as shown above. 

   NG: Go to step 2 

   OK : PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE 

2. INSPECT MULTIPLEX NETWORK BODY ECU (D, PCTY TERMINALS) 
   1. Turn the ignition switch off.
   2. Disconnect the multiplex network body ECU (D6, D8) connectors.
   3. Measure the resistance according to the value(s) in the table below.

      Resistance 

      RESISTANCE SPECIFICATION
      
      

      Tester Connection	Condition	Specified Condition
      D8-14 (DCTY) - Body ground	Driver side door is open	Below 1 Ω
      D8-14 (DCTY) - Body ground	Driver side door is closed	10 kΩ or higher
      D6-23 (PCTY) - Body ground	Passenger side door is open	Below 1 Ω
      D6-23 (PCTY) - Body ground	Passenger side door is closed	10 kΩ or higher

   NG: Go to step 3 

   Fig 1: Disconnecting Multiplex Network Body ECU (D6, D8) Connectors

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   OK : PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE 

3. INSPECT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY 
   1. Remove the front door courtesy light switch.
   2. Measure the resistance according to the value(s) in the table below.

      Resistance 

      RESISTANCE SPECIFICATION
      
      

      Tester Connection	Condition	Specified Condition
      1 - Body ground	Switch ON (Shaft is not pressed)	Below 1 Ω
      1 - Body ground	Switch OFF (Shaft is pressed)	10 kΩ or higher

      Fig 2: Inspecting Front Door Courtesy Light Switch Assembly

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   NG: REPLACE FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY 

   OK : REPAIR OR REPLACE HARNESS OR CONNECTOR (BETWEEN MULTIPLEX NETWORK BODY ECU, BODY GROUND - FRONT DOOR)