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.
   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   6 

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

   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

NG → See step   7 

OK: Go to next step 

1. Disconnect the m1 connector from the 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	Specified Condition
   Cruise control main switch side connector 1 (ECC) - m1-4	Below 1 Ω
   Cruise control main switch side connector 3 (CCS) - m1-3	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

HINT: 

• Refer to REMOVAL [08/2012 - ]
• Refer to INSTALLATION [08/2012 - ]

1. Remove the 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
   m1-3 - J24-1 (CCS)	Center	Below 1 Ω
   	2.5 rotations to the left
   	2.5 rotations to the right
   m1-4 - J24-2 (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.

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

   Result

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

B → See step   9 

C → See step   10 

A → REPAIR OR REPLACE HARNESS OR CONNECTOR