P0C19

DTC P0C19

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. Initial Inspection and Diagnostic Overview
* Review Strategy Based Diagnosis for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions provides an overview of each diagnostic category.

DTC Descriptor

DTC P0C19
- Drive Motor 1 Torque Delivered Performance

Circuit/System Description

Each drive motor generator is controlled by a motor control module (MCM). The MCM constantly monitors the requested torque and the delivered torque of it's respective drive motor generator. The drive motor generators utilize 3 phase alternating current (ac) electricity. High strength magnets are embedded within the rotor portion of each motor. The magnets increase the efficiency and power output of the drive motor generator.

Conditions for Running the DTC

* Ignition voltage is 8-18 volts.
* Drive motor generator is commanded to develop torque.

Conditions for Setting the DTC

The MCM has detected that drive motor generator torque is not being delivered as expected.

Action Taken When the DTC Sets

* DTC P0C19 is a Type A DTC.
* The hybrid powertrain control module (HPCM) commands the battery energy control module (BECM) to open the high voltage contactor relays.

Conditions for Clearing the DTC

DTC P0C19 is a Type A DTC.

Diagnostic Aids

Because the engine and drive motor 1 are joined mechanically through a planetary gear set, an engine condition that requires drive motor 1 to consume excessive current while trying to rotate the engine may cause this DTC to set.

Circuit/System Verification

1. Clear the DTC information.
2. Turn the ignition OFF for 1 minute.
3. Attempt to start the engine.
4. Retest for DTC P0C19.

Circuit/System Testing

1. Repair the following conditions if observed:

Important: If a seized engine is observed, internal transmission damage may have occurred.

* seized or binding engine
* seized or binding accessory drive belt

2. Drive the vehicle, retest for DTC P0C19.

^ If the DTC resets, program the PIM with the latest software version and recheck for DTCs. If the DTC resets after programming or if the PIM already contains the latest software version, replace the drive motor.

Repair Instructions

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

Drive motor generator 1. Refer to Drive Motor with Generator Assembly Removal - 1st Position.