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Home >> Jeep >> 2023 >> Grand Cherokee Altitude, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 49 (2.0L - DTCS P1573 To P1E27) >> DTC Troubleshooting >> P16FA Engine Disabled - No Immobilizer Signal From HCP >> Possible Causes

Possible Causes

WARNING: This page is about a different variant/trim than selected.
Possible Causes
INCORRECT OR NO VIN PROGRAMMED IN THE PCM
NO COMMUNICATION WITH THE POWER INVERTER MODULE
IGNITION KEY
POWERTRAIN CONTROL MODULE (PCM)

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

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