Cruise Control Switch Circuit: Procedure

1. Connect the Techstream to the DLC3.
   Fig 1: Checking Cruise Control Switch

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Turn the ignition switch to ON.
3. Turn the Techstream on.
4. Enter the following menus: Powertrain / Cruise Control / Data List.
5. According to the display on the Techstream, read the "Data List".
   CRUISE CONTROL:
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   CCS Main SW M-CPU	Main switch signal (Main CPU)/ON or OFF	ON: Cruise control main switch on OFF: Cruise control main switch off	-
   Cancel Switch	CANCEL switch signal/ON or OFF	ON: CANCEL switch on OFF: CANCEL switch off	-
   SET/COAST Switch	-/SET switch signal/ON or OFF	ON: - (COAST)/SET switch on OFF: - (COAST)/SET switch off	-
   RES/ACC Switch	+/RES switch signal/ON or OFF	ON: + (ACCEL)/RES (RESUME) switch on OFF: + (ACCEL)/RES (RESUME) switch off	-

   OK

   When cruise control main switch operation is performed, the results are the same as above.

NG → See step   2 

OK → See step   6 

1. Remove the cruise control main switch. Refer to REMOVAL .
2. Measure the resistance according to the value(s) in the table below.
   Fig 2: Checking Cruise Control Main Switch

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard resistance

   Tester Connection	Switch Condition	Specified Condition
   A-1 (ECC) - A-3 (CCS)	Main switch off*1	1 MΩ or higher
   	Main switch on	Below 2.5 Ω
   	+ RES	235 to 245 Ω
   	- SET	617 to 643 Ω
   	CANCEL	1509 to 1571 Ω

   • *1: The lever is in the neutral position.

NG → See step   7 

OK: Go to next step 

1. Disconnect the connector from the spiral cable.
   Fig 3: Checking Harness And Connector (Cruise Control Main Switch - Spiral Cable)

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

   Standard resistance

   Tester connection	Condition	Specified condition
   A-1 - 3	Always	Below 1 Ω
   A-3 - 4	Always	Below 1 Ω

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

HINT: 

• Removal. Refer to REMOVAL
• Installation. Refer to INSTALLATION

1. Remove the spiral cable.
   Fig 4: Inspecting Spiral Cable

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

   Standard resistance

   Tester Connection	Spiral Cable Position	Specified Condition
   3 - C9-1 (CCS)	Center	Below 1 Ω
   	2.5 rotations to the left
   	2.5 rotations to the right
   4 - C9-2 (ECC)	Center	Below 1 Ω
   	2.5 rotations to the left
   	2.5 rotations to the right

   HINT: 

   The spiral cable makes a maximum of approximately 5 rotations.

NG → See step   8 

OK: Go to next step 

1. Measure the resistance according to the value(s) in the table below.
   Fig 5: Identifying C9 And A36 Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard resistance

   Tester Connection	Condition	Specified Condition
   C9-1 - A36-40 (CCS)	Always	Below 1 Ω
   A36-40 (CCS) - Body ground	Always	10 kΩ or higher
   C9-2 (ECC) - Body ground	Always	Below 1 Ω

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → See step   9