DTC P0A1F-94: Hybrid/EV Battery Energy Control Module Unexpected Operation: Notes

WARNING: This page is about a different variant/trim than selected.

1. -

Outline of diagnosis:

Information of Battery ECU assembly was received at the main CPU of Hybrid vehicle control ECU assembly, and an unexpected value continued for a predetermined period of time

(1 trip detection logic)

Trouble symptom:

Reduced output power
Engine not stopped

CAUTION: Before performing diagnosis, refer to "CAUTION" in "General Description". Ref. to P-HEV HYBRID POWERTRAIN CONTROL (DIAGNOSTICS)>GENERAL DESCRIPTION>CAUTION .

Courtesy of SUBARU OF AMERICA, INC.

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 other than P0A1F94 displayed?

Yes : Perform the diagnosis for DTC other than P0A1F94. Ref. to P-HEV HYBRID POWERTRAIN CONTROL (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) .

No : Replace Battery ECU assembly. Ref. to HYBRID ELECTRIC VEHICLE>BATTERY CONTROL MODULE .