Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
DTC P060A-94: Hybrid/EV Powertrain Control Module Monitoring Processor Unexpected Operation: Notes
1 . -
Outline of diagnosis:
- Information of the sub CPU in Hybrid vehicle control ECU assembly was received at the main CPU, and an unexpected value continued for a predetermined period of time
- Monitoring function in Hybrid vehicle control ECU assembly detected conflicts caused by calculation fault or sensor fault of Hybrid vehicle control ECU assembly
(1 trip detection logic)
Trouble symptom:
- Normal driving
- When malfunction continues Hybrid system stopped
Before performing diagnosis, refer to "CAUTION" in "General Description". Ref. to P-HEV HYBRID POWERTRAIN CONTROL (DIAGNOSTICS)>GENERAL DESCRIPTION>CAUTION .
- CHECK DTC
.
Read the DTC of [P-HEV Drive Motor] using the Subaru Select Monitor. Ref. to P-HEV DRIVE MOTOR (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) .
Are DTC P0A3F-16, P0A3F-21 and P0A3F-22 displayed?
Yes: Perform the diagnosis of DTC P0A3F-16, P0A3F-21 and P0A3F-22. Ref. to P-HEV DRIVE MOTOR (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) .
NOTE:If more than one DTC is simultaneously displayed, perform the diagnosis in the order described above.
No: Go to 2.
- CHECK DTC
.
Read the DTC of [Brake Control] using the Subaru Select Monitor. Ref. to BRAKE CONTROL (DIAGNOSTICS) (HEV)>DIAGNOSTIC TROUBLE CODE (DTC) .
Are DTC C1401, C1402, C1405, C1406, C1413 and C1414 displayed?
Yes: Perform the diagnosis for DTC C1401, C1402, C1405, C1406, C1413 and C1414. Ref. to BRAKE CONTROL (DIAGNOSTICS) (HEV)> DIAGNOSTIC TROUBLE CODE (DTC)
NOTE:If more than one DTC is simultaneously displayed, perform the diagnosis in the order described above.
No: Go to 3.
- CHECK DTC
.
Read the DTC of [P-HEV Hybrid Powertrain Control] using the Subaru Select Monitor Ref. to P-HEV HYBRID POWERTRAIN CONTROL (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) .
Is DTC P060A-94 displayed?
Yes: Go to 4.
No: Perform the diagnosis for DTC other than P060A-94. Ref. to P-HEV HYBRID POWERTRAIN CONTROL (DIAGNOSTICS)> DIAGNOSTIC TROUBLE CODE (DTC) .
- CHECK FREEZE FRAME DATA
.
Read the freeze frame data value of [P-HEV Hybrid Powertrain Control] using the Subaru Select Monitor. Ref. to P-HEV HYBRID POWERTRAIN CONTROL (DIAGNOSTICS)>FREEZE FRAME DATA .
Is the vehicle in parked condition ([FR Wheel Speed] and [FL Wheel Speed] are 0 - 1.4 km/h (0 - 1 MPH)), and is [Vehicle Speed] less than 3 km/h (2 MPH)?
Yes: Replace Hybrid vehicle control ECU assembly. Ref. to HYBRID ELECTRIC VEHICLE>HYBRID POWERTRAIN CONTROL MODULE .
No: Check MOTOR RESOLVER CIRCUIT. For the inspection method, refer to the diagnosis of DTC P0A3F-16 for [Drive Motor]. Ref. to P-HEV DRIVE MOTOR (DIAGNOSTICS)>DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)>DTC P0A3F-16: DRIVE MOTOR "A" POSITION SENSOR CIRCUIT VOLTAGE BELOW THRESHOLD .
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.