Service Information

Volt

DTC P16E0

Diagnostic Instructions

•	Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.

•	Review Strategy Based Diagnosis for an overview of the diagnostic approach.

•	Diagnostic Procedure Instructions provides an overview of each diagnostic category.

DTC Descriptor

DTC P16E0: Engine Performance - No Torque Detected

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 utilised 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. The hybrid powertrain control module can detect a condition where the engine is cranking but does not start or has stalled.

Conditions for Running the DTC

•	The vehicle is ON.

•	The system voltage is at least 10 V.

•	DTC U0100 is not set.

•	Engine running.

•	Fuel Level is NOT Low.

•	No Fuel Level sensor DTCs set.

Conditions for Setting the DTC

The hybrid powertrain control module expected the engine to be supplying torque but no torque is detected.

Action Taken When the DTC Sets

DTC P16E0 is a Type A DTC.

Conditions for Clearing the DTC

DTC P16E0 is a Type A DTC.

Diagnostic Aids

Any condition that causes the engine to stall and/or not start may set this DTC. Possible conditions include:

•	Fuel conditions such as low pressure or contamination.

•	Engine conditions such as low compression.

•	Restricted exhaust or air intake systems.

Always inspect for DTCs that would cause an engine stall and/or no start condition.

Reference Information

Electrical Information Reference

•	Circuit Testing

•	Connector Repairs

•	Testing for Intermittent Conditions and Poor Connections

•	Wiring Repairs

DTC Type Reference

Powertrain Diagnostic Trouble Code (DTC) Type Definitions

Circuit/System Verification

Vehicle ON. Operate the hood release to open the hood. The engine should start and run.

⇒	If the engine fails to start, diagnose the engine system. Refer to Engine Cranks But Does Not Run .

Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.