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Home >> Jeep >> 2025 >> Grand Cherokee Altitude, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 25 (Hybrid Control Processor Module (HCP) - DTCS B1271-00 To P01E4-00) >> DTC Troubleshooting >> B273C-00 Digital Crash Input >> 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
BATTERY PACK CONTROL MODULE (BPCM) IS NOT PRESENT ON THE CAN BUS
AIR BAG DEPLOYMENT SIGNAL CIRCUIT FAILURE
AIR BAG DEPLOYMENT SIGNAL 2 CIRCUIT FAILURE
MISSING DIGITAL CRASH INPUT MESSAGE
BATTERY PACK CONTROL MODULE (BPCM)
OCCUPANT RESTRAINT CONTROLLER (ORC)

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  .