P1EA8

DTC P1EA8

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 Descriptor

DTC P1EA8

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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 Circuit Testing

* Connector Repairs Connector Repairs

* Testing for Intermittent Conditions and Poor Connections Testing for Intermittent Conditions and Poor Connections

* Wiring Repairs Wiring Repairs

DTC Type Reference

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

Circuit/System Verification

1. Verify that DTC P0AFA is not set.

• If the DTC is set, refer to DTC P0AFA or P0AFB P0AFA.

2. 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 Verification Tests after completing the diagnostic procedure.

Control Module References Programming and Relearning for Accessory DC Power Control Module, also referred to as the 14V power module, replacement, programming, and setup.