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Home >> Jeep >> 2023 >> Grand Cherokee Altitude, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 33 (Hybrid Control Processor Module (HCP) - DTCS P25BA-00 To U0121-00) >> DTC Troubleshooting >> U0028-00 Vehicle Communication Bus A

U0028-00 Vehicle Communication Bus A

WARNING: This page is about a different variant/trim than selected.

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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