Inspection Procedure

1. Connect the intelligent tester to the DLC3.
2. Turn the ignition switch to the ON position.
   Fig 1: Turning Ignition Switch To ON Position

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. According to the display on the tester, read the "DATA LIST".

   CCS (ECM): 

   CCS (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)	-
   MAIN SW (SUB)	Main SW signal (Sub 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/COAST	SW signal / ON or OFF	ON: SET/COAST SW ON OFF: SET/COAST OFF	-
   RES/ACC SW	RES/ACC SW signal / ON or OFF	ON: RES/ACC SW ON OFF: RES/ACC SW OFF	-

   OK: When the cruise control main switch is operated, the normal conditions listed above are shown on the display. 

   Result 

   RESULT INTELLIGENT TESTER
   
   

   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 SPIRAL CABLE ASSEMBLY 

B: GO TO NEXT STEP 

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

   OK 

   CRUISE CONTROL MAIN SWITCH ASSEMBLY
   
   

   Tester connection	Switch position	Specified condition
   A-2 - A-3	Neutral	Infinity (No continuity)
   A-2 - A-3	CRUISE ON-OFF	0 Ω (Continuity)
   A-2 - A-3	RES/ACC	210 to 270 Ω
   A-2 - A-3	SET/COAST	560 to 700 Ω
   A-2 - A-3	CANCEL	1,380 to 1,700 Ω

   Fig 2: Inspecting Cruise Control Main Switch Assembly

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE CRUISE CONTROL MAIN SWITCH ASSEMBLY 

OK: GO TO NEXT STEP 

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

   Resistance 

   SPIRAL CABLE ASSEMBLY
   
   

   Tester connection	Condition	Specified condition
   A-2 - C13-2	Always	Below 1 Ω
   A-3 - C13-3	Always	Below 1 Ω

   Fig 3: Inspecting Spiral Cable Assembly

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE SPIRAL CABLE ASSEMBLY 

OK: GO TO NEXT STEP 

1. Disconnect the ECM connector.
   Fig 4: Disconnecting ECM Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the resistance according to the value(s) in SPIRAL CABLE ASSEMBLY - ECM  .

   Resistance 

   SPIRAL CABLE ASSEMBLY - ECM
   
   

   Tester connection	Condition	Specified condition
   Spiral cable (C13-2) - CCS (E5-24)	Always	Below 1 Ω
   CCS (E5-24) - Body ground	Always	10 kΩ or higher
   Spiral cable (C13-2) - Body ground	Always	Below 1 Ω

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

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

OK: REPLACE ECM