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Engine-Codes - Gmc - U1130 GMC

U1130 GMC - Lost Communications With Remote Playback Device-CD Changer

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

U1130 GMC Possible Causes

What does this mean?
  • Faulty Remote Playback Device-CD Changer (CDX)
  • Remote Playback Device-CD Changer harness is open or shorted
  • Remote Playback Device-CD Changer circuit poor electrical connection

How is the U1130 GMC 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 U1130 GMC code

Labor: 1.0

The cost to diagnose the U1130 GMC 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)

U1130 GMC Meaning

Modules connected to the class 2 serial data circuit monitor for serial data communications during normal vehicle operation. Operating information and commands are exchanged among the modules. When a module receives a message for a critical operating parameter, the module records the identification number of the module which sent the message for the state of health monitoring/node alive messages. A critical operating parameter is one which, when not received, requires that the module use a default value for that parameter. Once an identification number is learned by a module, it will monitor for that module node alive message. Each module on the class 2 serial data circuit is required to send a Node Alive message every 2 seconds. When no message is detected from a learned identification number for 5 seconds, a Diagnostic Trouble Code (DTC) U1130 is set.

More Information

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