Engine-Codes - Ram - U11F5 RAM

U11F5 RAM - Lost Communication With Compact Disc Module

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What is this?
Table of contents

U11F5 RAM Possible Causes

  • Faulty External Disc Module (EDM)
  • External Disc Module harness is open or shorted
  • External Disc Module circuit poor electrical connection

How is the U11F5 RAM code repair?

Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

What is the cost to diagnose the U11F5 RAM code

Labor: 1.0

The cost to diagnose the U11F5 RAM code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.
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Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

U11F5 RAM Meaning

The primary communication network between electronic control modules is the Controller Area Network (CAN) data bus system. The Controller Area Network (CAN) data bus allows all electronic modules connected to the bus to share information with each other. Regardless of whether a message originates from a module on the higher speed CAN C (500K) Bus or on the lower speed bus, CAN Interior High Speed (IHS) (125K) Bus, the message structure and layout is similar, which allows the Body Control Module (BCM) to process and transfer messages between the CAN buses. The BCM stores Diagnostic Trouble Codes (DTCs) for certain bus network faults on the CAN C (500K) Bus and CAN IHS (125K) Bus.
The Diagnostic Trouble Code (DTC) sets when the Bus messages not received from the External Disc Module (EDM) for approximately ten seconds.

More Information

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