Inspection Procedure

HINT:

Start the inspection from step 1 when using the hand-held tester and start from step  2 when not using the hand-held tester.

1. READ VALUE ON HAND-HELD TESTER (UNLOCK WARNING SWITCH) 
   1. Connect the hand-held tester to the DLC3.
   2. Turn the ignition switch on (IG) and turn the hand-held tester main switch on.
   3. Select the item below in the "DATA LIST" and read the display on the hand-held tester.

      BODY: 

      Fig 1: Unlock Warning Switch Body Chart

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      OK:  

      When the ignition key is operated, the display changes as shown above. 

   1. NG: Go to step 2 
   2. OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (SEE  PROBLEM SYMPTOMS TABLE   ) 
2. INSPECT MULTIPLEX NETWORK BODY ECU (KSW TERMINAL) 
   1. Turn the ignition switch off.
   2. Disconnect the multiplex network body ECU (D7) connector.
   3. Measure the resistance according to the value (s) in MULTIPLEX NETWORK BODY ECU (KSW TERMINAL)  .

      Standard: 

      MULTIPLEX NETWORK BODY ECU (KSW TERMINAL)
      
      

      Tester Connection	Condition	Specified Condition
      D7-21 (KSW) - Body ground	Ignition key is inserted	Below 1 Ω
      D7-21 (KSW) - Body ground	Ignition key is not inserted	10 kΩ or higher

      Fig 2: Inspecting Multiplex Network Body ECU (KSW Terminal)

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   1. NG: Go to step 3 
   2. OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (SEE  PROBLEM SYMPTOMS TABLE   ) 
3. INSPECT UNLOCK WARNING SWITCH 
   1. Disconnect the unlock warning switch connector.
   2. Measure the resistance according to the value (s) in UNLOCK WARNING SWITCH  .

      Standard: 

      UNLOCK WARNING SWITCH
      
      

      Tester Connection	Condition	Specified Condition
      D31-1 - D31-2	Switch pushed (Ignition key is inserted)	Below 1 Ω
      D31-1 - D31-2	Switch released (Ignition key is not inserted)	10 kΩ or higher

      Fig 3: Inspecting Unlock Warning Switch

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   1. NG: REPLACE UNLOCK WARNING SWITCH 
   2. OK: REPAIR OR REPLACE HARNESS OR CONNECTOR (BETWEEN MULTIPLEX NETWORK BODY ECU, BODY GROUND AND UNLOCK WARNING SWITCH)