EyeSight (DIAGNOSTICS) > Diagnostics with Phenomenon
CHECK EyeSight STEERING SWITCH
Trouble symptom:
• Cruise control cannot be set. (Cancelled immediately.)
• Cruise control cannot be released.
Wiring diagram:
EyeSight System EyeSight System > WIRING DIAGRAM">

| STEP | CHECK | YES | NO |
1.CHECK EyeSight STEERING SWITCH CIRCUIT.
1) Remove the driver’s airbag module. Driver’s Airbag Module > REMOVAL">
2) Disconnect the EyeSight steering switch harness connector.
3) Turn the ignition switch to ON.
4) Measure the voltage between harness connector terminal and chassis ground.
Connector & terminal
(ST3) No. 3 (+) — Chassis ground (−):
(ST3) No. 4 (+) — Chassis ground (−):
Is the voltage 5 V or more?
Diagnostics with Phenomenon > CHECK EyeSight STEERING SWITCH">Go to Step 2.
Check for open/short circuit or poor contact in the harness between EyeSight steering switch and ECM and in the steering roll connector.
2.CHECK EyeSight STEERING SWITCH CIRCUIT.
1) Turn the ignition switch to OFF.
2) Remove the EyeSight steering switch. Switches and Harness">
3) Measure the resistance between harness connector terminal and chassis ground.
Connector & terminal
(ST3) No. 9 — Chassis ground:
Is the resistance less than 10 ??
Diagnostics with Phenomenon > CHECK EyeSight STEERING SWITCH">Go to Step 3.
Check for open circuit between EyeSight steering switch and chassis ground.
3.CHECK EyeSight STEERING SWITCH.
Check EyeSight steering switch. Switches and Harness">
Is the EyeSight steering switch normal?
Replace the ECM. Engine Control Module (ECM) > REMOVAL">
Replace the EyeSight steering switch. Switches and Harness">
Diagnostic procedure with phenomenonPreparation tool
WIPER AND WASHER SYSTEMS > General DescriptionPREPARATION TOOL1. SPECIAL TOOLILLUSTRATIONTOOL NUMBERDESCRIPTIONREMARKS — SUBARU SELECT MONITOR 4Used for setting of each function and troubleshooting for electrical system.NOTE:For detailed operation procedures of Subaru Select Monitor 4, refer to ...
Dtc b1642 side satellite sensor bus rh lost communication
AIRBAG SYSTEM (DIAGNOSTICS) > Diagnostic Chart with Trouble CodeDTC B1642 SIDE SATELLITE SENSOR BUS RH LOST COMMUNICATIONDiagnosis start condition:Ignition voltage is 10 V to 16 V.DTC detecting condition:• Open or short circuit in harness of side sensor bus (RH)• Side airbag sensor (R ...
Tire pressure monitoring system (TPMS) (U.S.-spec. models)
The tire pressure monitoring system (TPMS) in the Subaru Ascent is designed to
continuously monitor tire pressure and alert the driver when one or more tires are
significantly underinflated. This system enhances safety by helping to reduce the
risk of tire-related incidents and ensuring op ...