Inspection Procedure

HINT:

The procedure is the same for each door courtesy switch circuit. First, inspect the suspected door courtesy switch circuit.

1. READ VALUE OF TECHSTREAM 
   1. Connect the Techstream to the DLC3.
   2. Turn the engine switch on (IG).
   3. Turn the Techstream on.
   4. Select the following menu items: Body Electrical / Body / Data List.
   5. Read the display on the Techstream.

      Body (Main Body ECU RH): 

      DIAGNOSTIC NOTE
      
      

      Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
      D door Courtesy SW	Driver side door courtesy switch signal / ON or OFF	ON: Driver side door open OFF: Driver side door closed	-
      P door Courtesy SW	Passenger side door courtesy switch signal / ON or OFF	ON: Passenger side door open OFF: Passenger side door closed	-
      Rear door Courtesy SW	Rear (LH and RH) door courtesy switch / ON or OFF	ON: Rear door (LH or RH) is open OFF: Rear door (LH and RH) is closed	-

      OK: 

      Condition sign can be displayed. 

      Result 

      RESULT CHART
      
      

      Result	Proceed to
      OK	A
      Driver side door courtesy switch does not operate	B
      Front passenger side door courtesy switch does not operate	C
      Both rear door courtesy switches do not operate	D

   B: Go to step 2 

   C:  Go to step  4

   D:  Go to step  6

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

2. INSPECT DOOR COURTESY SWITCH (FRONT LH) 

   Inspection (See INSPECTION  )

   OK: 

   Door courtesy switch is normal. 

   NG: REPLACE DOOR COURTESY SWITCH (FRONT LH) 

   OK: Go to Next Step 

3. CHECK HARNESS AND CONNECTOR (DOOR COURTESY SWITCH (FRONT LH) - MAIN BODY ECU RH) 
   1. Disconnect the P1 ECU connector.
   2. Disconnect the Q11 switch connector.
   3. Measure the resistance according to the value (s) in the table below.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION CHART
      
      

      Tester Connection	Condition	Specified Condition
      P1-14 (DCTY) - Q11-1	Always	Below 1 Ω
      P1-14 (DCTY) or Q11-1-Body ground	Always	10 kΩ or higher

   Fig 1: Identifying Harness And Connector (Door Courtesy Switch (Front LH) - Main Body ECU RH)
   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

   OK: REPLACE MAIN BODY ECU RH (COWL SIDE J/B RH) 

4. INSPECT DOOR COURTESY SWITCH (FRONT RH) 

   Inspection (See INSPECTION  )

   OK: 

   Door courtesy switch is normal. 

   NG: REPLACE DOOR COURTESY SWITCH (FRONT RH) 

   OK: Go to Next Step 

5. CHECK HARNESS AND CONNECTOR (DOOR COURTESY SWITCH (FRONT RH) - MAIN BODY ECU RH) 
   1. Disconnect the J75 ECU connector.
   2. Disconnect the P9 switch connector.
   3. Measure the resistance according to the value (s) in the table below.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION CHART
      
      

      Tester Connection	Condition	Specified Condition
      J75-23 (PCTY) - P9-1	Always	Below 1 Ω
      J75-23 (PCTY) or P9-1 -Body ground	Always	10 kΩ or higher

   Fig 2: Identifying Harness And Connector (Door Courtesy Switch (Front RH) - Main Body ECU RH)
   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

   OK: REPLACE MAIN BODY ECU RH (COWL SIDE J/B RH) 

6. INSPECT DOOR COURTESY SWITCH (REAR LH AND REAR RH) 

   Inspection (See INSPECTION  )

   OK: 

   Door courtesy switch is normal. 

   NG: REPLACE DOOR COURTESY SWITCH (REAR LH OR REAR RH) 

   OK: Go to Next Step 

7. CHECK HARNESS AND CONNECTOR (DOOR COURTESY SWITCH (REAR LH OR REAR RH) - MAIN BODY ECU RH) 
   1. Check the wire harness between the cowl side junction block RH and door courtesy switch (rear LH).
      1. Disconnect the RA junction block connector.
      2. Disconnect the Q17 switch connector.
      3. Measure the resistance according to the value (s) in the table below.

         Standard resistance 

         TESTER CONNECTION SPECIFIED CONDITION CHART
         
         

         Tester Connection	Condition	Specified Condition
         RA-11 (LCTY) - Q17-1	Always	Below 1 Ω
         RA-11 (LCTY) or Q17-1-Body ground	Always	10 kΩ or higher

         Fig 3: Identifying Harness And Connector (Door Courtesy Switch (Rear LH Or Rear RH) - Main Body ECU RH)

         Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   2. Check the wire harness between the main body ECU RH and door courtesy switch (rear RH).
      1. Disconnect the P1 ECU connector.
      2. Disconnect the P16 switch connector.
      3. Measure the resistance according to the value (s) in the table below.

         Standard resistance 

         TESTER CONNECTION SPECIFIED CONDITION CHART
         
         

         Tester Connection	Condition	Specified Condition
         P1-16 (RCTY) - P16-1	Always	Below 1 Ω
         P1-16 (RCTY) or P16-1-Body ground	Always	10 kΩ or higher

   Fig 4: Identifying P1 ECU Connector And P16 Switch Connector
   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

   OK: REPLACE MAIN BODY ECU RH (COWL SIDE J/B RH)