P06AF

DTC P06AF

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 P06AF

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Torque Management System Performance - Forced Engine Shutdown

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.

The hybrid powertrain control module monitors a state of health message that the ECM transmits to verify the ECM is functioning properly.

Conditions for Running the DTC

* Ignition is On.

* The system voltage is greater than 9.5 V.

Conditions for Setting the DTC

The hybrid powertrain control module does not detect a valid state of health message from the ECM.

Action Taken When the DTC Sets

DTC P06AF is a Type A DTC.

Conditions for Clearing the DTC

DTC P06AF is a Type A DTC.

Reference Information

Schematic Reference

Hybrid Energy Storage Schematics [1][2]Electrical Diagrams

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 Testing

1. Verify that ECM DTC P0606 is not set.

• If the DTC is set, Refer to Diagnostic Trouble Code (DTC) List - Vehicle Diagnostic Trouble Code (DTC) List - Vehicle.

2. Ignition OFF, disconnect the K59 starter generator control module X3 connector and the K20 ECM X1 connector.

3. Test for less than 1 ohms between the serial data circuits listed below:

* K59 starter generator control module X3 connector terminal 16 and K20 ECM X1 connector terminal 36

* K59 starter generator control module X3 connector terminal 17 and K20 ECM X1 connector terminal 37

• If greater than the specified range, test the serial data circuit for an open/high resistance condition. If the circuit tests normal, replace the K20 ECM.

4. If the DTC resets, 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 ECM or Generator Control Module, also called the Starter Generator Control Module, replacement, programming and setup.