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 
   1. Connect the hand-held tester to the DLC3.
   2. Turn the ignition switch on.
   3. According to the display on the tester, read the "DATA LIST".
      Fig 1: Identifying Cruise Control Switch (CCS) Positions

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   CCS (ECM): 

   Fig 2: CCS Normal Condition Chart

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   OK: When the cruise control main switch is operated, the display changes as shown above. 

   Result: 

   CRUISE CONTROL MAIN SWITCH RESULT
   
   

   A	OK
   B	NG (All items are defective.)
   C	NG (One to four items are defective.)

   1. B: Go to step 2 
   2. C: REPLACE CRUISE CONTROL MAIN SWITCH ASSY (SEE  CRUISE CONTROL MAIN SWITCH ASSY  ) 
   3. A: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (SEE  PROBLEM SYMPTOMS TABLE  ) 
2. INSPECT CRUISE CONTROL MAIN SWITCH ASSY 
   1. Disconnect the cruise control main switch connector.
      Fig 3: Identifying Cruise Control Main Switch Connector

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   2. Measure the resistance according to the value(s) in the table below.

   Standard: 

   TESTER CONNECTION SPECIFIED CONDITION
   
   

   Tester Connection	Condition	Specified Condition
   2 - 3	Neutral	10 kΩ or higher
   2 - 3	RES/ACC	210 to 270 Ω
   2 - 3	SET/COAST	560 to 700 Ω
   2 - 3	CANCEL	1,380 to 1,700Ω
   2 - 3	Main Switch OFF	10 kΩ or higher
   2 - 3	Main Switch ON	Below 1 Ω

   1. NG: REPLACE CRUISE CONTROL MAIN SWITCH ASSY (SEE  CRUISE CONTROL MAIN SWITCH ASSY  ) 
   2. OK: GO TO NEXT STEP 
3. INSPECT SPIRAL CABLE SUB-ASSY 
   1. Disconnect the spiral cable sub-assy connector.
   2. Measure the resistance according to the value(s) in the table below.

   Standard: 

   TESTER CONNECTION SPECIFIED CONDITION
   
   

   Tester Connection	Condition	Specified Condition
   A-2 - C10-2	Always	Below 1 Ω
   A-3 - C10-3	Always	Below 1 Ω

   Fig 4: Identifying Spiral Cable Sub-Assy Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   1. NG: REPLACE SPIRAL CABLE SUB-ASSY (SEE  REPLACEMENT  ) 
   2. OK: GO TO NEXT STEP 
4. CHECK HARNESS AND CONNECTOR (BETWEEN SPIRAL CABLE SUB-ASSY AND ECM, BODY GROUND) (SEE  ELECTRONIC CIRCUIT INSPECTION PROCEDURE  ) 
   1. Disconnect the E5 connector from the ECM.
   2. Measure the resistance according to the value(s) in the table below.

   Standard: 

   TESTER CONNECTION SPECIFIED CONDITION
   
   

   Tester Connection	Condition	Specified Condition
   C10-2 - E5-24	Always	Below 1 Ω
   E5-24 - Body ground	Always	10 kΩ or higher
   C10-3 - Body ground	Always	Below 1 Ω

   Fig 5: Connecting Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   1. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 
   2. OK: GO TO NEXT STEP 

   PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (SEE  PROBLEM SYMPTOMS TABLE  )