P1B0D

DTC P1B0D

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 P1B0D

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Drive Motor Control Module Drive Motor Overspeed

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 drive motor position sensor is monitored by the generator control module. The generator control module monitors the angular position, speed and direction of the starter generator based upon the signals of the resolver-type position sensor. The position sensor allows the drive motor control module to determine the exact position and speed of the starter generator.

Conditions for Running the DTC

The drive motor control module and hybrid powertrain control module are awake.

Conditions for Setting the DTC

Starter generator speed is greater than 18,000 RPM.

Action Taken When the DTC Sets

* DTC P1B0D is a Type B DTC.

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

* The battery indicator light will illuminate.

Conditions for Clearing the DTC

DTC P1B0D is a Type B DTC.

Diagnostic Aids

Check for broken or missing drive belt.

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

1. Verify if DTC P0A3F, P0A40, P1B03, P0C52, P0C53, P0C5C, and P0C5D are not set.

• If DTC P0A3F, P0A40, P1B03, P0C52, P0C53, P0C5C, and P0C5D is set, refer to Diagnostic Trouble Code (DTC) List - Vehicle Diagnostic Trouble Code (DTC) List - Vehicle.

2. If the DTC is set, program the 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 Starter Generator Control Module, replacement, programming and setup.