P1EA8

DTC P1EA8
Diagnostic Instructions
Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
Review Strategy Based Diagnosis for an overview of the diagnostic approach.
Diagnostic Procedure Instructions provides an overview of each diagnostic category.

DTC Descriptor
DTC P1EA8: 14 Volt Power Module Hybrid/EV Battery System Voltage Low Voltage

Circuit/System Description
The 14V power module, also called the accessory DC power control module, constantly monitors system input and output voltage. This sensor is internal to the 14V power module and is not serviced separately from the control module.

Conditions for Running the DTC
The hybrid powertrain control module commands the 14V power module to begin charging.

Conditions for Setting the DTC
Hybrid Battery System Voltage less than 200V has been detected.

Action Taken When the DTC Sets
DTC P1EA8 is a Type C DTC.

Conditions for Clearing the DTC
DTC P1EA8 is a Type C DTC.

Diagnostic Aids
This DTC may set due to low 12 V system voltage.

Reference Information
Electrical Information Reference
Circuit Testing
Connector Repairs
Testing for Intermittent Conditions and Poor Connections
Wiring Repairs

DTC Type Reference
Powertrain Diagnostic Trouble Code (DTC) Type Definitions

Circuit/System Verification
Verify that DTC P0AFA is not set.
If the DTC is set, refer to DTC P0AFA or P0AFB.
If the DTC is set, program the K1 14V power module. If the DTC resets, replace the K1 14V power module.

Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
Control Module References for Accessory DC Power Control Module, also referred to as the 14V power module, replacement, programming, and setup.