P06B5

DTC P06B1, P06B2, P06B4, or P06B5

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 P06B1
- 15 Volt Reference 1 Circuit Low Voltage

DTC P06B2
- 15 Volt Reference 1 Circuit High Voltage

DTC P06B4
- 15 Volt Reference 2 Circuit Low Voltage

DTC P06B5
- 15 Volt Reference 2 Circuit High Voltage

Circuit/System Description

The Drive Motor Generator Power Inverter Module (PIM) contains two Motor Control Modules (MCM) and a Hybrid Control Module (HCM). The MCMs share an internal 15 Volt reference power supply in order to operate the drive motor sensors processors. This fault is handled inside the PIM and no external circuits are involved.

Conditions for Running the DTC

* The control module runs the program to detect an internal fault when the key is ON.
* Ignition voltage is 8-18 volts.

Conditions for Setting the DTC

The control module has detected an internal malfunction.

Action Taken When the DTC Sets

* DTCs P06B1, P06B2, P06B4 and P06B5 are Type A DTCs.
* The PIM commands the battery energy control module (BECM) to open the high voltage relay contactors.

Conditions for Clearing the DTC

DTCs P06B1, P06B2, P06B4 and P06B5 are Type A DTCs.

Circuit/System Verification

1. Clear the DTC information.
2. Turn the ignition OFF for 1 minute.
3. Turn the ignition ON.
4. Retest for DTCs P06B1, P06B2, P06B4 and P06B5.

Circuit/System Testing

1. Clear the DTC and operate the vehicle under the condition for running and setting the DTC.
2. Shut the ignition OFF for 30 seconds, and verify that the DTC does not reset.

^ If the DTC resets, replace the Drive Motor Generator Power Inverter Module Assembly (PIM).

Repair Instructions

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

Drive Motor Generator Power Inverter Module Assembly (PIM) replacement.