Service Information

Volt

DTC P0CD2

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 P0CD2 00: Charge Port Door Unlock Control Performance

When the vehicle is in the Service Mode, the hybrid powertrain control module 2 supplies a 5V signal to the charge door position sensor through the charge port door position sensor signal circuit. The charge port door ajar switch contains a resistor ladder interface for switch position between two resistors for sensing used by the hybrid powertrain control module 2 to determine if the charge port door is in the open position or the closed position.

Conditions for Running the DTC

The charge port door does not open when commanded.

Conditions for Setting the DTC

•	The charge port door has been commanded to open twice but the hybrid powertrain control module 2 has detected that the charge port door is still in the closed position

•	The charge port door has been commanded to open but the hybrid powertrain control module 2 has detected that the charge port door is still in the closed position after 5 seconds.

Action Taken When the DTC Sets

The malfunction indicator lamp will be illuminated.

Conditions for Clearing the DTC

•	The DTC will be current for as long as the fault is present.

•	When the fault is no longer present, the DTC will become a history DTC.

•	A history DTC will clear after 50 ignition cycles

Diagnostic Aids

This DTC will set if the charge port door is stuck closed as may occur when ice and/or snow has accumulated around the charge port door or if any moisture on the charge port door weatherstrip freezes to the charge port door. Placing the vehicle in a warm environment and allowing all the snow or ice to melt, the charge port door should function normally and the DTC will become history.

Reference Information

Electrical Information Reference

•	Circuit Testing

•	Connector Repairs

•	Testing for Intermittent Conditions and Poor Connections

•	Wiring Repairs

Scan Tool Reference

Control Module References for scan tool information

Circuit/System Verification

Vehicle OFF, transmission selector in Park, command the Battery Charging System Receptacle Door to OPEN with the scan tool, the M80 charge port door unlatch actuator should release the charge port door allowing it to be pulled open.

⇒	If the charge port door does not open, refer to Charger Door Release Malfunction .

Observe the scan tool Battery Charging System Receptacle Door parameter while opening and closing the charge port door, the value should change between Open and Closed.

⇒	If the value is always Closed, refer to Charger Door Ajar Indicator Malfunction .