P0CD1
DTC P0CD1
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis Strategy Based Diagnosis for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions Diagnostic Procedure Instructions provides an overview of each diagnostic category.
DTC Descriptor
DTC P0CD1 00
- Charge Port Door Unlock Control Circuit
Diagnostic Fault Information
Circuit/System Description
The hybrid powertrain control module 2 monitors the voltage values of the charge port wake-up signal circuit and the charge port request signal circuit. When the charge port door release switch is pressed, the two switch contacts closes. The hybrid powertrain control module 2 detects the voltage on the signal circuits and provides a 12 V pulse to the charge port relay, the relay briefly becomes energized which then allows B+ voltage to the charge port door latch which activates and releases the charge port doorr.
Conditions for Running the DTC
The hybrid powertrain control module 2 is awake
Conditions for Setting the DTC
* The hybrid powertrain control module 2 detects a short to ground or an open/high resistance in the charge port door relay control circuit.
* The hybrid powertrain control module 2 detects an open/high resistance in the charge port door relay ground circuit
Action Taken When the DTC Sets
The charge port door latch will malfunction and the charge port door may not be able to be opened.
Conditions for Clearing the DTC
DTC P0CD1 00 is a type B DTC
Reference Information
Schematic Reference
Plug-In Charging Schematics Plug-In Charging Schematics
Connector End View Reference
Component Connector End Views Hybrid/EV Battery Pack X1
Description and Operation
Charge Port Door Description and Operation Charge Port Door Description and Operation
Electrical Information Reference
* Circuit Testing Circuit Testing
* Connector Repairs Connector Repairs
* Testing for Intermittent Conditions and Poor Connections Testing for Intermittent Conditions and Poor Connections
* Wiring Repairs Wiring Repairs
Scan Tool Reference
Control Module References Programming and Relearning for scan tool information
Circuit/System Verification
Vehicle in Service Mode, command the charge port door to OPEN with the scan tool, the M80 charge port door actuator should release the charge port door allowing it to open.
Circuit/System Testing
1. Vehicle OFF, disconnect the KR119 charge port door relay.
2. Test for less than 1 ohm between the ground circuit terminal 85 and ground.
• If greater than the specified range, test the ground circuit for an open/high resistance.
3. Connect a test lamp between the control circuit terminal 86 and ground.
4. Vehicle in Service Mode, command the charge port door to OPEN with a scan tool. The test lamp should turn ON during the OPEN command.
• If the test lamp is always ON, test the control circuit for a short to voltage. If the circuit tests normal, replace the K114B hybrid powertrain control module 2.
• If the test lamp is always OFF, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the K114B hybrid powertrain control module 2.
5. If all circuits test normal, test or replace the KR119 charge port door relay.
Component Testing
Relay Test
1. Vehicle OFF, disconnect the KR119 charge port door relay.
2. Test for 60-180 ohm between terminals 85 and 86.
• If not within the specified range, replace the KR119 charge port door relay.
3. Test for infinite resistance between the following terminals:
* 30 and 86
* 30 and 87
* 30 and 85
* 85 and 87
• If not the specified value, replace the KR119 charge port door relay.
4. Install a 5 A fused jumper wire between relay terminal 85 and 12 V. Install a jumper wire between relay terminal 86 and ground. Test for less than 2 ohm between terminals 30 and 87.
• If greater than the specified range, replace the KR119 charge port door relay.
Repair Instructions
Perform the Diagnostic Repair Verification Verification Tests after completing the diagnostic procedure.
* Relay Replacement (Attached to Wire Harness) Relay Replacement (Attached to Wire Harness)Relay Replacement (Within an Electrical Center) Relay Replacement (Within an Electrical Center)
* Control Module References Programming and Relearning for the hybrid powertrain control module 2 replacement, programming and setup