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Jeep TSB #0801224
2022 Jeep Grand Cherokee
TSB Document:
Affected Component: EQUIPMENT:ELECTRICAL
- Summary
- Flash: Battery Pack Control Module (BPCM) Diagnostic and System Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs) have been set: ? P0AA4-00 - Hybrid Battery Negative Contactor Circuit Stuck Closed. ? P0AA1-00 - Hybrid/EV Battery Positive Contactor ?A? Stuck Closed. Customers may also experience the following: ? The vehicle will not start. This bulletin involves updating the BPCM with the latest available software.
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