Inspection Procedure

1. Turn the ignition switch off.
2. Disconnect the cruise control main switch connector.
3. Measure the resistance according to the value(s) in CRUISE CONTROL MAIN SWITCH  .

   Standard resistance 

   CRUISE CONTROL MAIN SWITCH
   
   

   Tester connection	Switch condition	Specification
   1 - 3	+/RES	235 to 245 Ω
   1 - 3	-/SET	617 to 643 Ω
   1 - 3	CANCEL	1,509 to 1,571 Ω
   1 - 3	Main Switch OFF	10 kΩ or higher
   1 - 3	Main Switch ON	Below 1 Ω

   Fig 1: Inspecting Cruise Control Main Switch

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE CRUISE CONTROL MAIN SWITCH 

OK: GO TO NEXT STEP 

1. Disconnect the spiral cable side connector.
2. Measure the resistance according to the value(s) in Fig 2 .

   Standard resistance 

   STEERING PAD SWITCH ASSEMBLY
   
   

   Tester connection	Condition	Specification
   Terminal 1 (ECC) main switch side - Terminal 4 (ECC) spiral cable side	Always	Below 1 Ω
   Terminal 3 (CCS) main switch side - Terminal 5 (CCS) spiral cable side	Always	Below 1 Ω

   Fig 2: Checking Harness And Connector (Steering Pad Switch Assembly)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE STEERING PAD SWITCH ASSEMBLY 

OK: GO TO NEXT STEP 

1. Disconnect the spiral cable connector ECM side.
2. Measure the resistance according to the value(s) in SPIRAL CABLE SUB-ASSEMBLY  .

   Standard resistance 

   SPIRAL CABLE SUB-ASSEMBLY
   
   

   Tester connection	Condition	Specification
   Terminal 5 (CCS) main switch side - CCS (C10- 5)	Always	Below 1 Ω
   Terminal 4 (ECC) main switch side - ECC (C10- 4)	Always	Below 1 Ω

   Fig 3: Inspecting Spiral Cable Sub-Assembly

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE SPIRAL CABLE SUB-ASSEMBLY 

OK: GO TO NEXT STEP 

1. Measure the resistance according to the value(s) in SPIRAL CABLE SUB-ASSEMBLY - BODY GROUND  .

   Standard resistance 

   SPIRAL CABLE SUB-ASSEMBLY - BODY GROUND
   
   

   Tester connection	Condition	Specification
   ECC (C10-4) - Body ground	Always	Below 1 Ω

   Fig 4: Checking Harness And Connector (Spiral Cable Sub-Assembly - Body Ground)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - BODY GROUND) 

OK: GO TO NEXT STEP 

1. Disconnect the ECM connector.
2. Measure the resistance according to the value(s) in SPIRAL CABLE SUB-ASSEMBLY - ECM (3MZ-FE)  and SPIRAL CABLE SUB-ASSEMBLY - ECM (2AZ-FE)  g.

   Standard resistance: 

   3MZ-FE 

   SPIRAL CABLE SUB-ASSEMBLY - ECM (3MZ-FE)
   
   

   Tester connection	Condition	Specification
   CCS (E5-24) - CCS (C10-5)	Always	Below 1 Ω
   CCS (E5-24) - Body ground	Always	10 kΩ or higher

   2AZ-FE 

   SPIRAL CABLE SUB-ASSEMBLY - ECM (2AZ-FE)
   
   

   Tester connection	Condition	Specification
   CCS (E5-31) - CCS (C10-5)	Always	Below 1 Ω
   CCS (E5-31) - Body ground	Always	10 kΩ or higher

   Fig 5: Checking Harness And Connector (Spiral Cable Sub-Assembly - ECM)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - ECM) 

OK: PROCEED TO CIRCUIT INSPECTION SHOWN IN  PROBLEM SYMPTOMS TABLE