Cruise Control Switch Circuit [11/2017 - 01/2023]: Procedure

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 / Radar Cruise / Data List.
5. Read the Data List according to the display on the Techstream.

   Powertrain > Radar Cruise > Data List 

   Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
   Cruise Control Main Switch	Cruise control main switch (ON/OFF button) status	ON or OFF	ON: Cruise control main switch (ON/OFF button) pushed OFF: Cruise control main switch (ON/OFF button) not pushed	-
   RES/ACC Switch	+RES switch signal	ON or OFF	ON: +RES switch on OFF: +RES switch off	-
   SET/COAST Switch	-SET switch signal	ON or OFF	ON: -SET switch on OFF: -SET switch off	-

   Powertrain > Radar Cruise > Data List 

   Tester Display
   Cruise Control Main Switch
   RES/ACC Switch
   SET/COAST Switch

   OK

   The Data List items shown in the table change according to the operation of the cruise control main switch.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [11/2017 - 01/2023] 

Result: 

NG 

See step  2

1. Remove the cruise control main switch.

   Refer to REMOVAL [09/2014 - ]

2. Inspect the cruise control main switch.

   Refer to INSPECTION [11/2017 - ]

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE CRUISE CONTROL MAIN SWITCH. Refer to  COMPONENTS [09/2014 - ] 

Result: 

OK 

See step  3

1. Remove the steering pad switch assembly.

   Refer to REMOVAL [11/2017 - ]

2. Inspect the steering pad switch assembly.

   Refer to INSPECTION [11/2017 - ]

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE STEERING PAD SWITCH ASSEMBLY. Refer to  COMPONENTS [11/2017 - ] 

Result: 

OK 

See step  4

1. Remove the spiral cable sub-assembly.

   Refer to REMOVAL [11/2017 - 01/2023]

2. Inspect the spiral cable sub-assembly.

   Refer to INSPECTION [11/2017 - ]

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE SPIRAL CABLE SUB-ASSEMBLY. Refer to  COMPONENTS [11/2017 - 03/2019]  , or refer to  COMPONENTS [03/2019 - 01/2023] 

Result: 

OK 

See step  5

1. Disconnect the O25 spiral cable sub-assembly connector.
2. Disconnect the Q2 driving support ECU assembly connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   O25-7 (CCS) - Q2-17 (CCS)	Always	Below 1 Ω
   O25-2 (ECC) - Body ground	Always	Below 1 Ω
   O25-7 (CCS) or Q2-17 (CCS) - Body ground	Always	10 kΩ or higher

   Result

   Result	Proceed to
   OK	A
   NG	B

Result: 

A 

REPLACE DRIVING SUPPORT ECU ASSEMBLY. Refer to  COMPONENTS [09/2014 - 01/2023] 

Result: 

B 

REPAIR OR REPLACE HARNESS OR CONNECTOR