DTC P0A1F, P1A05 or P1A06
Diagnostic Instructions
DTC Descriptors
DTC P0A1F 00: Battery Energy Control Module Internal Performance
DTC P1A05 00: Battery Energy Control Module Random Access Memory (RAM)
DTC P1A06 00: Battery Energy Control Module Read Only Memory (ROM)
Circuit/System Description
The battery energy control module will diagnose its own systems and determine when a fault condition is present. Diagnostics and system status is communicated from the battery energy control module to the hybrid powertrain control module 2 through serial data. The hybrid powertrain control module 2 is the host controller for diagnostic trouble code (DTC) information.
This diagnostic applies to internal microprocessor integrity conditions within the battery energy control module. This fault is internal to the battery energy control module and no external circuits are involved.
Conditions for Running the DTC
| • | The battery energy control module is awake and communicating. |
| • | The system voltage is at least 9 V. |
Conditions for Setting the DTC
The battery energy control module has detected an internal malfunction.
Action Taken When the DTC Sets
| • | DTCs P0A1F, P1A05 and P1A06 are type A DTCs. |
| • | Vehicle goes to reduced battery power mode. After vehicle is turned off, vehicle will not return to propulsion active mode. |
Conditions for Clearing the DTC
DTCs P0A1F, P1A05 and P1A06 are type A DTCs.
Diagnostic Aids
If stored only as a history DTC and not retrieved as a current DTC, do not replace the control module.
Circuit/System Verification
Verify that DTC P0A1F, P1A05 or P1A06 is not set.
| ⇒ | If any of the DTCs are set, replace the A4 hybrid/EV battery pack. |
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
| ©© Copyright Chevrolet. All rights reserved |
