P0D1F
DTC P0D1F
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 P0D1F
- Control Module Date/Time Synchronization Performance
Circuit/System Description
The hybrid power train control module 2 monitors the date and time data it receives from the GPS satellite systems via the OnStar module. This time information is used to ensure the module's internal clock is synchronized to the customer's local time. The Time of Day Charging feature utilizes this internal clock to keep track of time and alarms for delayed charging modes. If this GPS time data is received during a drive cycle, the system is considered synchronized.
Conditions for Running the DTC
The vehicle needs to go from ignition OFF to ignition ON to start the diagnostic.
Conditions for Setting the DTC
The vehicle is driven for more than 5 consecutive drive cycles where trip distance exceeds 15 Kilometers, and the date and time were unavailable from the OnStar Module.
Action Taken When the DTC Sets
* DTC P0D1F is a type C DTC.
* On the Navigation screen "Default Charge Mode: Immediately" is displayed.
* The battery charger Time Of Day charging option is disabled, and charging mode is set to IMMEDIATE.
Conditions for Clearing the DTC
DTC P0D1F is a type C DTCs.
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 A4
Description and Operation
Plug-In Charging System Description and Operation 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 Control Module References for scan tool information
Special Tools
EL-48900 - HEV Safety Kit
For equivalent regional tools, refer to Special Tools Tools and Equipment.
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 condition under which high voltage is always present and personal protection equipment (PPE) and proper procedures must be followed.
Before working on any high voltage system, be sure to wear the following Personal Protection Equipment:
* Safety glasses with appropriate side shields when within 50 feet of the vehicle, either indoors or outdoors.
* Certified and up-to-date Class "0" Insulation gloves rated at 1000V with leather protectors.
- Visually and functionally inspect the gloves before use.
- Wear the Insulation gloves at all times when working with the high voltage battery assembly, whether the system is energized or not.
Failure to follow the procedures exactly as written may result in serious injury or death.
1. Use a scan tool to read the GMLAN Low Speed message GPS_Date_and_Time_LS. Verify the seconds are incrementing.
• If seconds are not incrementing, refer to No Global Positioning System (GPS) Reception No Global Positioning System (GPS) Reception.
2. DTC P0D1F should not be set.
• If the DTC is set, disable the high voltage. Refer to High Voltage Disabling High Voltage Disabling. Replace the T18 battery charger.
Repair Instructions
Perform the Diagnostic Repair Verification Verification Tests after completing the diagnostic procedure.
Control Module References Control Module References for battery charger control module replacement, programming and setup