P0AB9

DTC P0AB9

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 P0AB9
- Hybrid System Performance

Circuit/System Description

This vehicle does not use a 12 V starter motor to crank the internal combustion engine. A much more powerful 300 V drive motor generator located within the transmission is utilized to crank the engine. The 300 V drive motor generator can rotate the engine to operating speed (800 RPM) within just a few hundred milliseconds. During an engine cranking event the HPCM can detect a condition where the engine is cranking but does not start.

Conditions for Running the DTC

Drive motor generator 1 is cranking the engine.

Conditions for Setting the DTC

The HPCM detects that CKP engine speed has not risen above the commanded cranking speed indicating the engine has failed to start.

Action Taken When the DTC Sets

DTC P0AB9 is a Type C DTC.

Conditions for Clearing the DTC

DTC P0AB9 is a Type C DTC.

Circuit/System Verification

Turn the ignition to Crank. The engine should start and run.

If the engine fails to start, diagnose the engine system. Refer to PSD SIE TITLE Error: SIE linked to empty Cell ID 65892.
If the engine starts and runs the condition is intermittent.