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Home >> Jeep >> 2025 >> Grand Cherokee Altitude, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 32 (Battery Pack Control Module (BPCM) - DTCS P167B-00 To P1C00-00) >> DTC Troubleshooting >> P1A21-00 HV Battery Contactor Control Sequence Incorrect >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2025 Jeep Grand Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes
OTHER DTCS SET
HYBRID CONTROL PROCESSOR (HCP) COMMANDING EXCESSIVE POWER FROM BATTERY PACK CONTROL MODULE (BPCM)

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  and/or  BPCM PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  . 

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