Volt

Charger Door Release Malfunction

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 close and provides B+ voltage to the two signal circuits. This provides B+ to the Wake-up Circuit input of the hybrid powertrain control module 2and lowers the voltage on the fuel door request signal circuit input to the hybrid powertrain control module 2, The hybrid powertrain control module 2 detects the voltage on the signal circuits and provides a 12V pulse to the charge port relay, the relay briefly becomes energised which then allows B+ voltage to the charge port door latch which activates and releases the charge port door.

Schematic Reference

Plug-In Charging Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

Charge Port Door Description and Operation

Electrical Information Reference

Scan Tool Reference

Control Module References for scan tool information

1. Vehicle in Service Mode, command the M80 charge port door actuator to UNLATCH with the scan tool, the M80 charge port door actuator should unlatch and the charge port door should open.

⇒	If the M80 charge port door actuator does not perform as specified, refer to Charge Port Door Actuator Malfunction.

2. Command the M80 charge port door actuator to UNLATCH by pressing the S113 charge port door open request switch, the M80 charge port door actuator should unlatch and the charge port door should open.

⇒	If charge port door does not open, refer to Charge Port Door Switch Malfunction.

Charge Port Door Actuator Malfunction

1. Vehicle OFF, disconnect the KR119 charge port door relay.
2. Test for less than 10 Ω between the ground circuit terminal 85 and ground.

⇒	If greater than the specified range, test the ground circuit for an open/high resistance.

3. Vehicle in Service Mode, verify that a test lamp does not illuminate between the control circuit terminal 30 and ground.

⇒	If the test lamp illuminates, test the control circuit for a short to voltage.

4. Verify that a test lamp illuminates between the B+ circuit terminal 87 and ground.

⇒	If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance. If the circuit tests normal and the B+ circuit fuse is open, test the control circuit terminal 30 for a short to ground.

5. Vehicle OFF, disconnect the harness connector at the M80 charge port door actuator.
6. Test for less than 10 Ω between the ground circuit terminal 1 and ground.

⇒	If greater than the specified range, test the ground circuit for an open/high resistance.

7. Connect the harness connector at the M80 charge port door actuator.
8. Vehicle in Service Mode, connect a 10 A fused jumper wire between the B+ circuit terminal 87 and the control circuit terminal 30. Verify the M80 charge port door actuator is activated.

⇒	If the M80 charge port door actuator does not activate, test the control circuit for an open/high resistance. If the circuit tests normal, test or replace the M80 charge port door actuator.

9. Connect a test lamp between the control circuit terminal 86 and the ground circuit terminal 85.
10. Command the Activate Charge Port Solenoid with a scan tool. The test lamp should turn ON while commanding the solenoid.

⇒	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.

11. If all circuits test normal, test or replace the KR119 charge port door relay.

Charge Port Door Switch Malfunction

1. Vehicle OFF, disconnect the harness connector at the S113 charge port door open request switch.
2. Verify that a test lamp illuminates between the B+ circuit terminal 1 and ground.

⇒	If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance.

3. Connect the harness connector at the S113 charge port door open request switch.
4. Disconnect the X2 harness connector at the K114B hybrid powertrain control module 2.
5. Connect a test lamp between the signal circuit terminal 29 and ground.
6. Observe the function of the test lamp while pressing and releasing the S113 charge port door open request switch. The test lamp should turn ON each time the switch is pressed.

⇒	If the test lamp is always ON, test the signal circuit for a short to voltage. If the circuit tests normal, test or replace the S113 charge port door open request switch.

⇒	If the test lamp is always OFF, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, test or replace the S113 charge port door open request switch.

7. If all circuits test normal, replace the K114B hybrid powertrain control module 2.

Charge Port Door Release Actuator

1. Vehicle OFF, disconnect the harness connector at the M80 charge port door actuator.
2. Install a 20 A fused jumper wire between the control terminal 2 and 12 V. Briefly install a jumper wire between the ground terminal 1 and ground. Verify the M80 charge port door actuator activates.

⇒	If the actuator does not perform as specified, replace the M80 charge port door actuator.

Charge Port Door Release Switch

1. Vehicle OFF, disconnect the harness connector at the S113 charge port door open request switch.
2. Test for infinite resistance between the B+ terminal 1 and the signal terminal 2 with the switch in the open position.

⇒	If not the specified value, replace the S113 charge port door open request switch.

3. Test for less than 2 Ω between the B+ terminal 1 and the signal terminal 2 while pressing the S113 charge port door open request switch.

⇒	If greater than the specified range, replace the S113 charge port door open request switch.

Relay Test

1. Vehicle OFF, disconnect the KR119 charge port door relay.
2. Test for 60-180 Ω 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 Ω between terminals 30 and 87.

⇒	If greater than the specified range, replace the KR119 charge port door relay.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.