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| • | 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. |
Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
|---|---|---|---|---|
Charge Pilot Indicator Contol | P0D2B | P0D2B | P0D2B | - |
Charge Status Indicator Contol | P0D2C | 1 | P0D2C | - |
Charge Complete Indicator Contol | 1 | 1 | 1 | -- |
Low Reference | -- | P0D2C, P0D2B | -- | -- |
1. Plug In Charging Indicator Malfunction | ||||
The status of charging events (including delays) is communicated to the user through a charge status indicator and audio tones. The battery state of charge indicator, located at the top middle of the instrument panel, will be permanently lit green when the vehicle is charging under automatic control. It will have a fast flash green if the charging is delayed and will begin later. It will have a slow flash green when charging is complete. A permanently lit yellow indicator means the vehicle is not able to accept a charge. And if there is no indicator lit, it means the electronic vehicle supply equipment is not working properly or is not connected.
Both conditions need to run for diagnostics to pass.
| • | The vehicle 12 V battery system voltage needs to be above 9 V. |
| • | Vehicle in Service Mode. |
| • | The drive motor battery charger cable is disconnected (LEDs commanded OFF). |
| • | The vehicle 12 V battery system voltage needs to be above 9 V. |
| • | Vehicle in Service Mode. |
| • | The vehicle is connected to an AC supply and the battery charger is charging the vehicle (LEDs commanded ON). |
| • | LED Commanded OFF, the hybrid/EV powertrain control module 2 detects a short-circuit to battery for about 4 seconds. |
| • | LED Commanded ON, the hybrid/EV powertrain control module 2 detects a short-circuit to earth or an open-circuit/high resistance for about 4 seconds. |
DTC P0D2B and P0D2C are type B DTCs.
DTC P0D2B and P0D2C are type B DTCs.
Plug-In Charging System Description and Operation
Powertrain Diagnostic Trouble Code (DTC) Type Definitions
Control Module References for scan tool information
EL-48900 HEV Safety Kit
For equivalent regional tools, refer to Special Tools .
Danger: Always perform the High-Voltage Disabling procedure prior to servicing any High Voltage component or connection. Personal Protection Equipment (PPE) and proper procedures must be followed.
The High-Voltage Disabling procedure will perform the following tasks:| • | Identify how to disable high voltage. |
| • | Identify how to test for the presence of high voltage. |
| • | Identify conditions under which high voltage is always present and personal protection equipment (PPE) and proper procedures must be followed. |
| • | Safety goggles with appropriate side shields when within 15 metres (50 feet) of the vehicle, either indoors or outdoors. |
| • | Certified and up-to-date Class "0" Insulation gloves rated at 1000 V with leather protectors. |
| - | Visually and functionally inspect the gloves before use. |
| - | Wear the Insulation gloves with leather protectors at all times when working with the high-voltage battery assembly, whether the system is energised or not. |
Danger: The Volt Battery Pack will utilise an exchange program. Please consult the most recent revision of bulletin/PI #PIP4841, available in Service Information (SI), for a list of approved Volt Battery Pack service procedures. Components that may be removed and serviced without exchanging the complete battery pack are identified in the bulletin/PI. Please contact the GM Technical Assistance Centre (1-877-446-8227) if you have any questions.
| ⇒ | If greater than the specified range, test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the K114B hybrid/EV powertrain control module 2. |
| ⇒ | If the test lamp does illuminate, test the signal circuit for a short-circuit to voltage. If the circuit tests normal, replace the K114B hybrid/EV powertrain control module 2. |
| ⇒ | If the test lamp does not illuminate, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the K114B hybrid/EV powertrain control module 2. |
| ⇒ | If the test lamp does illuminate, test the signal circuit for a short-circuit to voltage. If the circuit tests normal, replace the K114B hybrid/EV powertrain control module 2. |
| ⇒ | If the test lamp does not illuminate, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the K114B hybrid/EV powertrain control module 2. |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
Battery Charge Indicator Replacement
Control Module References for battery charger control module replacement, programming and set-up
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