P1A50

DTC P0A1B, P1A50, P1A51, P1ADC, or P1EB6

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 P0A1B

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Drive Motor Control Module Performance

DTC P1A50

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Drive Motor Control Module Random Access Memory

DTC P1A51

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Drive Motor Control Module Read Only Memory

DTC P1ADC

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Drive Motor Control Module Long Term Memory Performance

DTC P1EB6

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Drive Motor Control Module Long Term Memory Reset

Circuit/System Description

The generator control module also called the starter generator control module is comprised of the following three control modules; the hybrid powertrain control module, 14 volt power module and the drive motor control module. These three control modules are non serviceable and are part of the generator control module.

This fault is handled inside the drive motor control module and no external circuits are involved.

Conditions for Running the DTC

* The ignition is ON.

* Ignition voltage is greater than 9.5 V.

Conditions for Setting the DTC

The control module has detected an internal malfunction.

Action Taken When the DTC Sets

DTCs P0A1B, P1A50, P1A51, P1ADC and P1EB6 are Type A DTCs.

P0A1B, P1A50, and P1A51

The hybrid powertrain control module opens the high voltage contactor relay.

Conditions for Clearing the DTC

DTCs P0A1B, P1A50, P1A51, P1ADC and P1EB6 are Type A DTCs.

Diagnostic Aids

DTC P0A1B may cause DTCs U0073, U0074, U0293, U1817 to set.

Reference Information

Description and Operation

* Starter Generator Description and Operation Starter Generator Description and Operation

* Generator Control Module Description and Operation Generator Control Module Description and Operation

* Hybrid Modes of Operation Description Hybrid Modes of Operation Description

DTC Type Reference

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

Circuit/System Verification

If the DTC is set, program the K59 starter generator control module. If the DTC resets, replace the K59 starter generator control module.

Repair Instructions

Perform the Diagnostic Repair Verification Verification Tests after completing the repair.

Control Module References Programming and Relearning for Generator Control Module, also called the Starter Generator Control Module, replacement, programming and setup.