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Home >> Jeep >> 2025 >> Grand Cherokee Altitude, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 61 (Hybrid Control Processor Module (HCP) - DTCS P2BA3-00 To U0100-00) >> DTC Troubleshooting >> U0028-00 Vehicle Communication Bus A

U0028-00 Vehicle Communication Bus A

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.

The COMMUNICATION DIAGNOSTIC PROCEDURE MUST  be performed before replacing any component(s) or module(s). Perform the COMMUNICATION DIAGNOSTIC PROCEDURE. Refer to COMMUNICATION DIAGNOSTIC PROCEDURE .

NOTE:

This DTC indicates that there is a concern with the FD-CAN 14 (+ or -) circuits. 

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