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Home >> Dodge and Ram >> 2024 >> ProMaster 2500 Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 16 (Body Control Module (BCM) - DTCS B1872-23 To U0254-86) >> DTC Troubleshooting >> B2204-87 Ecu Error (PROXI) - Missing Message >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2024 RAM ProMaster EV. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes
INCORRECT MODULE INSTALLED
INCORRECT VEHICLE PROXI (MODULE NOT PROPERLY CONFIGURED)
MODULE POWER(S) OR GROUND(S) OPEN

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

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