P0A1E

DTC P0A1E

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 P0A1E
- Starter/Generator Control Module Internal Performance

Circuit/System Description

The internal fault detection is handled inside the starter/generator control module (SGCM). No external circuits are involved.

Conditions for Running the DTC

Engine ON.

Conditions for Setting the DTC

The SGCM detects an internal ECU malfunction.

Action Taken When the DTC Sets

Hybrid system disabled.

Conditions for Clearing the DTC

* The condition responsible for setting the DTC no longer exists.
* The ignition must be cycled before the DTC can be cleared.

Reference Information
Schematic Reference

Hybrid Controls Schematics (Hybrid Controls Schematics)
Connector End View Reference

Component Connector End Views (Connector End Views By Name)
Description and Operation

Starter/Generator Description and Operation (Description and Operation)
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)

Scan Tool Reference

Control Module References (Programming and Relearning) for scan tool information

Circuit/System Verification

1. With a scan tool, clear the DTC.
2. Cycle the ignition switch from OFF to RUN several times.
3. Ignition ON, operate the vehicle within the Conditions for Running the DTC and verify the DTC does not reset.
4. If the DTC resets, replace the SGCM.

Repair Instructions

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

Control Module References (Programming and Relearning) for SGCM replacement, setup, and programming