Circuit/System Verification
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 includes the following steps:
- 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 15 meters (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 with leather protectors at all times when working with the high voltage battery assembly, whether the system is energized or not.
Failure to follow the procedures may result in serious injury or death.
- Verify DTC U2DBC, U2DBD, or U2DBE is not set
- If DTC U2DBE is set
- Replace the component: X98 Battery Charger Coupler & Perform the configuration/reset function:
- Charge Port Temperature Rate Of Charge Too High - Level 2 Reset
- If DTC U2DBC or U2DBD is set & DTC U2DBE = Not set
- Verify a condition does not exist with the component: X98 Battery Charger Coupler
- Melted/missing DC Charging Terminals
- Scorched/burnt plastic or paint on or around A110 Charge Port Housing
- Visible Damage
- If a condition exists - Repair or replace as necessary
- Go to next step: If no condition exists
- If all conditions test normal - Perform the scan tool configuration/reset function: Charge Port Temperature Rate Of Charge Too High - Level 2 Reset & Attempt DC Charging
- If only DTC U2DBC is set
- Refer to: Plug-In Charging Malfunction (DC Charging) , or Plug-In Charging Malfunction (AC Charging)
- Go to next step: If none of the DTCs are set
- Operate the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
Verify that no DTCs are set.
- If any of the DTCs are set
Repeat the procedure starting at step 1
- Go to next step: If none of the DTCs are set
- If any of the DTCs are set
- All OK.
If DTCs U2DBC-U2BDE are present the Battery Charger Coupler and Charge Port Housing may have sustained arc flash high voltage terminal damage. Arcing may result on molten metal splattering and arc flash hazards. To avoid the risk of personal injury or death and/or high voltage component damage, never attempt to charge the vehicle when coupler terminal damage is present. Always replace the Battery Charger Coupler whenever high voltage terminal damage is observed before any other repairs are performed.
Attempting to DC Fast Charge with undiagnosed damage to the DC charge port terminals could result in an arc flash or fire