P1E9D

DTC P1E9A-P1E9D

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis Strategy Based Diagnosis for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions Diagnostic Procedure Instructions provides an overview of each diagnostic category.

DTC Descriptors
DTC P1E9A 00
- Hybrid/EV Battery Interface Control Module 3 Performance

DTC P1E9B 00
- Hybrid/EV Battery Interface Control Module 3 Random Access Memory Performance

DTC P1E9C 00
- Hybrid/EV Battery Interface Control Module 3 Read Only Memory Performance

DTC P1E9D 00
- Hybrid/EV Battery Interface Control Module 3 Long Term Memory Performance

Circuit/System Description

The hybrid battery interface control module 3 will diagnose its own systems and determine when a fault condition is present. This diagnostic applies to internal microprocessor integrity conditions within the hybrid battery interface control module 3. This fault is internal to the hybrid battery interface control module 3 and no external circuits are involved.

Conditions for Running the DTC

* The control module is awake.
* DTC U2605 is not set.

Conditions for Setting the DTC

The control module has detected an internal malfunction.

Action Taken When the DTC Sets

DTCs P1E9A, P1E9B, P1E9C, and P1E9D are type A DTCs.

Conditions for Clearing the DTC

DTCs P1E9A, P1E9B, P1E9C, and P1E9D 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

Danger: The Volt Battery Pack will utilize an exchange program. Please consult the most recent revision of bulletin/PI #PIP4841, available in Service Information (SI), for a list of approved Volt Battery Pack service procedures. Components that may be removed and serviced without exchanging the complete battery pack are identified in the bulletin/PI. Please contact the GM Technical Assistance Center (1-877-446-8227) if you have any questions.


Verify that DTC P1E9A, P1E9B, P1E9C, or P1E9D is not set.

If any of the DTCs are set, replace the K112C hybrid battery interface control module 3.

Repair Instructions

Perform the Diagnostic Repair Verification Verification Tests after completing the diagnostic procedure.

Control Module References Programming and Relearning for control module replacement, programming and setup