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 INTELLIGENT TESTER 
   1. Connect the intelligent tester to the DLC3.
   2. Turn the engine switch on (IG).
   3. Turn the intelligent tester main switch on.
   4. Select the items below in the DATA LIST for proper functioning of the courtesy switch.

      DATA LIST: BODY (Main Body ECU LH) 

      DATA LIST - BODY (MAIN BODY ECU LH)
      
      

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

   (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 Q11 Switch Connector Terminals

      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 P8 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) - P8-1	Always	Below 1 Ω
      J75-23 (PCTY) or P8-1 -Body ground	Always	10 kΩ or higher

      Fig 2: Identifying J75 ECU Connector Terminals

      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) 

   (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 DA Junction Block And V13 Switch Connector Terminals

         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 P16 Switch Connector Terminals

         Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

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