?POWER LOSS AT VERY LOW SOC OF HV BATTERY What's New: ? The Procedure has been updated with additional...

Bulletin number

B612016

Component

Electrical system

Summary

?POWER LOSS AT VERY LOW SOC OF HV BATTERY What's New: ? The Procedure has been updated with additional step: writing new adaptation value. This Service Information bulletin supersedes SI B61 20 16 dated January 2017. . The vehicle may exhibit any of the following at very low State of Charge (SOC) - less than 8%: Power loss or high voltage system shutdown while running range extender (REx). Inconsistent performance of the REx. High voltage system shutdown in vehicles without REx. Excessively high range displayed in instrument cluster. The following fault codes may be stored in the battery management electronics (SME): 21F13D - High-voltage battery, switch contactors: Switch-off after a fault 21F241 - High-voltage battery, cell supervision circuit 1: Undervoltage (at least one cell) 21F242 - High-voltage battery, cell supervision circuit 2: Undervoltage (at least one cell) 21F243 - High-voltage battery, cell supervision circuit 3: Undervoltage (at least one cell) 21F244 - High-voltage battery, cell supervision circuit 4: Undervoltage (at least one cell) 21F245 - High-voltage battery, cell supervision circuit 5: Undervoltage (at least one cell) 21F246 - High-voltage battery, cell supervision circuit 6: Undervoltage (at least one cell) 21F247 - High-voltage battery, cell supervision circuit 7: Undervoltage (at least one cell) 21F248 - High-voltage battery, cell supervision circuit 8: Undervoltage (at least one cell) 22283B - High-voltage power management: Switch-off of the high-voltage system to protect against discharge of the high-voltage battery If you encounter a vehicle that exhibits the same customer complaints but does not have any of the SME fault codes listed above, please proceed to step 2 of the procedure below. Ineffective SME Software.

Owners of these vehicles have filed 25 complaints in the electrical category.