P15F5

DTC P15F5

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 P15F5
- Engine Crank Torque Command Circuit

Circuit/System Description

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

The hybrid powertrain control module sends an engine torque requested message to the ECM over serial data. The ECM monitors the data to verify the indicated engine torque requested calculation is correct. The ECM processor monitors the data to verify that the engine torque command is correct.

Conditions for Running the DTC

The ignition is ON.

Conditions for Setting the DTC

The control module has detected an internal malfunction.

Action Taken When the DTC Sets

* DTC P15F5 is a Type A DTC.
* The hybrid powertrain control module opens the high voltage contactor relay.

Conditions for Clearing the DTC

DTC P15F5 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 Verification

1. Verify that DTC P0562 is not set.

• If DTC is set, refer to DTC B1325, B1330, B1420, B1424, B1517, C0800, C0895, C0899, C0900, C12E1, C12E2, P0560, P0562, or P0563 Engine Electrical- Hybrid (HP6) for Hybrid (HP6).

Note: Diagnose and repair any communication DTCs prior to performing this testing.

2. 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 Control Module References for generator control module, also called Starter Generator Control Module, replacement, programming and setup.