Check Cruise Control Command Switch: Wiring Diagram

EyeSight System < Refer to appropriate SYSTEM WIRING DIAGRAM. >

Fig 1: Eyesight System - Wiring Diagram (2.5 L Model)

Courtesy of SUBARU OF AMERICA, INC.

EyeSight System < Refer to appropriate SYSTEM WIRING DIAGRAM. >

Fig 2: Eyesight System - Wiring Diagram (3.6 L Model)

Courtesy of SUBARU OF AMERICA, INC.

Step	Check	Yes	No
1 CHECK CRUISE CONTROL COMMAND SWITCH CIRCUIT. Remove the driver's airbag module. < Refer to REMOVAL , Driver's Airbag Module. > Disconnect the harness connector of cruise control command switch. Turn the ignition switch to ON. Measure the voltage between harness connector terminal and chassis ground. Connector & terminal (ST3) No. 4 (+) - Chassis ground (-): (ST3) No. 3 (+) - Chassis ground (-):	Is the voltage 5 V or more?	Go to step 2 .	Check the harness between cruise control command switch and ECM, and the steering roll connector for open or short circuit, or for poor contact.
2 CHECK CRUISE CONTROL COMMAND SWITCH CIRCUIT. Turn the ignition switch to OFF. Remove the cruise control command switch. < Refer to REMOVAL , Cruise Control Command Switch. > Measure the resistance between harness connector terminal and chassis ground. Connector & terminal (ST3) No. 2 - Chassis ground:	Is the resistance less than 10 Ω?	Go to step 3 .	Check for open circuit between cruise control command switch and chassis ground.
3 CHECK CRUISE CONTROL COMMAND SWITCH. Check the cruise control command switch.	Is the cruise control command switch normal?	Replace the ECM. < Refer to REMOVAL , Engine Control Module (ECM). > < Refer to REMOVAL , Engine Control Module (ECM). >	Replace the cruise control command switch.