Cruise Control Switch Circuit: Procedure

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus: Powertrain / Cruise Control / Data List.
5. Check the Data List for proper functioning of the cruise control main switch.
   TEXT IN ILLUSTRATION
   
   

   *1	ON/OFF
   *2	- SET
   *3	+ RES
   *4	CANCEL

   CRUISE CONTROL
   
   

   Techstream Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Main SW M-CPU	Main switch signal (Main CPU) / ON or OFF	ON: Main switch on OFF: 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: - SET switch on OFF: - SET switch off	-
   RES/ACC Switch	+ RES switch signal / ON or OFF	ON: + RES switch on OFF: + RES switch off	-

   OK

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

NG → See step   2 

OK → See step   7 

1. Remove the cruise control main switch. Refer to REMOVAL [08/2012 - ] .
2. Measure the resistance according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   TEXT IN ILLUSTRATION
   
   

   *1	Component without harness connected (Cruise Control Main Switch)	*2	ON/OFF
   *3	- SET	*4	+ RES
   *5	CANCEL	-	-

   STANDARD RESISTANCE
   
   

   Tester Connection	Switch Condition	Specified Condition
   1 (ECC) - 3 (CCS)	Main Switch off	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

3. Reinstall the cruise control main switch. Refer to INSTALLATION [08/2012 - ] .

NG → See step   8 

OK: Go to next step 

1. Disconnect the connector from the spiral cable sub-assembly.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

2. Disconnect the connector from the cruise control main switch.
3. Measure the resistance according to the value(s) in the table below.
   STANDARD RESISTANCE
   
   

   Tester Connection	Condition	Specified Condition
   Cruise control main switch side connector 1 (ECC) - z3-4	Always	Below 1 Ω
   Cruise control main switch side connector 3 (CCS) - z3-3	Always	Below 1 Ω
   Cruise control main switch side connector 1 (ECC) - z3-3	Always	10 kΩ or higher
   Cruise control main switch side connector 3 (CCS) - z3-4	Always	10 kΩ or higher

4. Reconnect the connector from the cruise control main switch.
5. Reconnect the connector from the spiral cable sub-assembly.
   TEXT IN ILLUSTRATION
   
   

   *1	Front view of wire harness connector (to Spiral Cable Sub-assembly)
   *2	Front view of wire harness connector (to Cruise Control Main Switch)

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR (CRUISE CONTROL MAIN SWITCH - SPIRAL CABLE SUB-ASSEMBLY) 

OK: Go to next step 

HINT: 

• Removal. Refer to REMOVAL [08/2012 - ]
• Installation. Refer to INSTALLATION [08/2012 - ]

1. Remove the spiral cable sub-assembly.

   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 Sub-assembly Position	Specified Condition
   z3-3 - J24-1 (CCS)	Center	Below 1 Ω
   	2.5 rotations to the left
   	2.5 rotations to the right
   z3-4 - J24-2 (ECC)	Center	Below 1 Ω
   	2.5 rotations to the left
   	2.5 rotations to the right

   TEXT IN ILLUSTRATION
   
   

   *1	Component without harness connected (Spiral Cable Sub-assembly)

   HINT: 

   The spiral cable sub-assembly makes a maximum of approximately 5 rotations.

3. Reinstall the spiral cable sub-assembly.

NG → See step   9 

OK: Go to next step 

1. Disconnect the ECM connector.
2. Disconnect the spiral cable sub-assembly connector.
3. Measure the resistance according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   STANDARD RESISTANCE
   
   

   Tester Connection	Condition	Specified Condition
   J24-1 (CCS) - A6-31 (CCS)	Always	Below 1 Ω
   A6-31 (CCS) - Body ground	Always	10 kΩ or higher

   TEXT IN ILLUSTRATION
   
   

   *1	Front view of wire harness connector (to Spiral Cable Sub-assembly)
   *2	Front view of wire harness connector (to ECM)

4. Reconnect the spiral cable assembly connector.
5. Reconnect the ECM connector.

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

OK: Go to next step 

1. Disconnect the spiral cable sub-assembly connector.

   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
   J24-2 (ECC) - Body ground	Always	Below 1 Ω

   TEXT IN ILLUSTRATION
   
   

   *1	Front view of wire harness connector (to Spiral Cable Sub-assembly)

   RESULT
   
   

   Result	Proceed to
   OK	A
   NG (2GR-FSE)	B
   NG (4GR-FSE)	C

3. Reconnect the spiral cable sub-assembly connector.

B → See step   10 

C → See step   11 

A → REPAIR OR REPLACE HARNESS OR CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - BODY GROUND)