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Home >> Chrysler >> 2011 >> 300 Base, Gas >> Repair and Diagnosis >> External Pages >> Different car >> Section 1912 (6.7L Diesel - DTCS P24B4-00 To U3017-00 - 2500HD & 3500HD) >> DTC Troubleshooting >> U1421-00-Implausible Ignition Key Off Time Received >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2019 RAM 3500 HD and 2019 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes
BODY CONTROL MODULE (BCM)
POWERTRAIN CONTROL MODULE (PCM)

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  . 

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