Cruise Control Switch Circuit: Procedure

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

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Turn the power switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus: Powertrain / Cruise Control / Data List.
5. Check the Data List to confirm proper function of the cruise control switch.
   CRUISE CONTROL
   
   

   Techstream Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Main SW M-CPU	Cruise control switch (Main CPU) / ON or OFF	ON: Cruise control switch on OFF: Cruise control 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	-
   Main SW S-CPU	Cruise control switch (S-CPU) / ON or OFF	ON: Cruise control switch on OFF: Cruise control switch off	-

   TEXT IN ILLUSTRATION
   
   

   *a	ON/OFF
   *b	-/SET
   *c	+/RES
   *d	CANCEL

   OK

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

NG → See step   2 

OK → See step   7 

1. Remove the cruise control switch. Refer to REMOVAL .
   Fig 2: Measuring Resistance Of Cruise Control Switch Connector (Vehicles Without Vehicle-To-Vehicle Distance Control Mode)

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

   Standard Resistance

   Tester Connection	Switch Condition	Specified Condition
   1 - 3	Cruise control switch off	1 MΩ or higher
   	Cruise control switch on	Below 2.5 Ω
   	+/RES	235 to 245 Ω
   	-/SET	617 to 643 Ω
   	CANCEL	1509 to 1571 Ω

   TEXT IN ILLUSTRATION
   
   

   *1	Cruise Control Switch (ON-OFF button)	-	-
   *a	Component without harness connected (Cruise Control Switch)	*b	ON-OFF
   *c	+/RES	*d	-/SET
   e	CANCEL	-	-

3. Reinstall the cruise control switch. Refer to INSTALLATION .

NG → See step   8 

OK: Go to next step 

1. Disconnect the spiral with sensor cable sub-assembly connector.
   Fig 3: Identifying z5 Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Disconnect the cruise control switch connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance (Check for Open)

   Tester Connection	Condition	Specified Condition
   Cruise control switch side connector terminal 3 - z5-3	Always	Below 1 Ω
   Cruise control switch side connector terminal 1 - z5-4	Always	Below 1 Ω

   TEXT IN ILLUSTRATION
   
   

   *a	Front view of wire harness connector (to Spiral with Sensor Cable Sub-assembly)
   *b	Front view of wire harness connector (to Cruise Control Switch)

4. Reconnect the cruise control switch connector.
5. Reconnect the spiral with sensor cable sub-assembly connector.

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

OK: Go to next step 

1. Remove the spiral with sensor cable sub-assembly. Refer to REMOVAL .
   Fig 4: Identifying Spiral With Sensor Cable Sub-Assembly Connector Terminals

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

   Standard Resistance (Check for Open)

   Tester Connection	Condition	Specified Condition
   z5-3 - H30-1 (CCS)	The spiral with sensor cable sub-assembly is centered	Below 1 Ω
   	The spiral with sensor cable sub-assembly position is 2.5 rotations to the left
   	The spiral with sensor cable sub-assembly position is 2.5 rotations to the right
   z5-4 - H30-2 (ECC)	The spiral with sensor cable sub-assembly is centered	Below 1 Ω
   	The spiral with sensor cable sub-assembly position is 2.5 rotations to the left
   	The spiral with sensor cable sub-assembly position is 2.5 rotations to the right

   TEXT IN ILLUSTRATION
   
   

   *a	Component without harness connected (Spiral with Sensor Cable Sub-assembly)

   HINT: 

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

3. Reinstall the spiral with sensor cable sub-assembly. Refer to INSTALLATION .

NG → See step   9 

OK: Go to next step 

1. Disconnect the power management control ECU connector.
2. Disconnect the spiral with sensor cable sub-assembly connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance (Check for Open)

   Tester Connection	Condition	Specified Condition
   H30-1 (CCS) - H4-22 (CCS)	Always	Below 1 Ω

   Standard Resistance (Check for Short)

   Tester Connection	Condition	Specified Condition
   H30-1 (CCS) or H4-22 (CCS) - Body ground	Always	10 kΩ or higher

4. Reconnect the spiral with sensor cable sub-assembly connector.
5. Reconnect the power management control ECU connector.

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - POWER MANAGEMENT CONTROL ECU) 

OK: Go to next step 

1. Disconnect the spiral with sensor cable sub-assembly connector.
   Fig 5: Identifying H30 Connector Terminals

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

   Standard Resistance (Check for Open)

   Tester Connection	Condition	Specified Condition
   H30-2 (ECC) - Body ground	Always	Below 1 Ω

   TEXT IN ILLUSTRATION
   
   

   *a	Front view of wire harness connector (to Spiral with Sensor Cable Sub-assembly)

3. Reconnect the spiral with sensor cable sub-assembly connector.

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR (SPIRAL WITH SENSOR CABLE SUB-ASSEMBLY - BODY GROUND) 

OK → See step   10