DTC P1EF3-P1EF5
Diagnostic Instructions
DTC Descriptors
DTC P1EF3: Battery Charger High-Voltage Converter 1 Temperature Too High
DTC P1EF4: Battery Charger High Voltage Converter 2 Temperature Too High
DTC P1EF5: Battery Charger Input Voltage Conditioner Temperature Too High
Circuit/System Description
The battery charger uses a liquid cooled cooling system which is cooled from the front of the vehicle. The hybrid electronic cooling system needs to be functioning properly for the battery charger to be able to meet its temperature requirements.
The hybrid/EV powertrain control module 2 monitors the battery charger temperature and verifies it is within its proper operating range. There is a temperature sensor that measures the overall temperature of the battery charger. Also, there are battery charger internal temperatures sensors that monitor for over-temperature conditions, that are for the voltage converter 1, voltage converter 2 and the voltage conditioner within the battery charger.
Conditions for Running the DTC
| • | The vehicle 12 V battery system voltage needs to be above 9 V. |
| • | The vehicle is connected to an AC supply and the battery charger is charging. |
Conditions for Setting the DTC
The battery charger voltage converter 1, voltage converter 2 or voltage conditioner temperature sensors measures a temperature greater than 100 °C (212°C).
Action Taken When the DTC Sets
| • | DTC P1EF3-P1EF5 are type A DTCs. |
| • | Disables the vehicle high-voltage battery charging. |
Conditions for Clearing the DTC
DTC P1EF3-P1EF5 are type A DTCs.
Reference Information
Schematic Reference
Plug-In Charging Schematics
Connector End View Reference
Component Connector End Views
Description and Operation
Plug-In Charging System Description and Operation
Electrical Information Reference
DTC Type Reference
Powertrain Diagnostic Trouble Code (DTC) Type Definitions
Scan Tool Reference
Control Module References for scan tool information
Special Tools
EL-48900 HEV Safety Kit
For equivalent regional tools, refer to Special Tools .
Circuit/System Verification
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. |
- Verify that no hybrid electronics coolant system DTC is set.
- Verify that the hybrid/EV electronics cooling system is functioning properly, refer to Hybrid/EV Electronics Cooling Diagnostic .
| ⇒ | If the hybrid/EV electronics cooling system is not functioning properly, repair the fault. |
- Disable the high voltage at the T18 battery charger. Refer to High Voltage Disabling . Replace the T18 battery charger.
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
Control Module References for battery charger control module replacement, programming and set-up
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