Inspection Procedure

1. Connect the intelligent tester to the DLC3.
2. Turn the ignition switch on, and turn the intelligent tester main switch on.
3. Check the DATA LIST for proper functioning of the cruise control main switch.
   Fig 1: Identifying Cruise Control Main Switch Position

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   CC (ECM): 

   DATA LIST
   
   

   Item	Measurement Item / Display (Range)	Normal Condition	Diagnostic Note
   MAIN SW (MAIN)	Main SW signal (Main CPU) / ON or OFF	ON: Main SW ON (Pushed on) OFF: Main SW OFF (Pushed off)	-
   CANCEL SW	CANCEL SW signal / ON or OFF	ON: CANCEL SW ON OFF: CANCEL SW OFF	-
   SET/COAST SW	SET/- SW signal / ON or OFF	ON: SET/- SW ON OFF: SET/- SW OFF	-
   RES/ACC SW	RES/+ SW signal / ON or OFF	ON: RES/+ SW ON OFF: RES/+ SW OFF	-

   OK: 

   When cruise control main switch operation is performed the results will be same as above. 

   Result: 

   RESULT CHART
   
   

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

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

C: REPLACE  CRUISE CONTROL MAIN SWITCH  

B: Go to Next Step 

1. Disconnect the cruise control main switch connector.
2. Measure the resistance according to the value(s) in the table below.
   Fig 2: Identifying Cruise Control Main Switch Position

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard resistance 

   TESTER CONNECTION SPECIFIED CONDITION CHART
   
   

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

NG: REPLACE  CRUISE CONTROL MAIN SWITCH  

OK: Go to Next Step 

1. Disconnect the spiral cable connector.
2. Measure the resistance according to the value(s) in the table below.
   Fig 3: Identifying Terminals Of Spiral Cable Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard resistance 

   TESTER CONNECTION SPECIFIED CONDITION CHART
   
   

   Tester Connection	Specified Condition
   A-3 - D15-1	Below 1 Ω
   A-4 - D15-2	Below 1 Ω

NG: REPLACE SPIRAL CABLE 

OK: Go to Next Step 

1. Measure the resistance according to the value(s) in the table below.
   Fig 4: Identifying Terminals Of Spiral Cable Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard resistance 

   TESTER CONNECTION SPECIFIED CONDITION CHART
   
   

   Tester Connection	Condition	Specified Condition
   Spiral cable (D15-1) - CCS (D41-2)	Always	Below 1 Ω
   CCS (D41-2) - Body ground	Always	10 kΩ or higher
   Spiral cable (D15-2) - E1 (B47-1)	Always	Below 1 Ω

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

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