U1891 CHEVROLET Code - Hybrid Control Module Lost Communication With Instrument Panel Cluster
|U1891 CHEVROLET code possible causes
- Faulty Instrument Panel Cluster (IPC)
- Instrument Panel Cluster harness is open or shorted
- Instrument Panel Cluster circuit poor electrical connection
- Faulty Hybrid Control Module (HCM)
|How do I fix the U1891 CHEVROLET code?Check 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.
|Cost of diagnosing the U1891 CHEVROLET code
Labor: 1.0The cost of diagnosing the U1891 CHEVROLET 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.
|What are U1891 CHEVROLET code possible symptoms?
- Engine Light ON (or Service Engine Soon Warning Light)
|U1891 CHEVROLET code descriptionModules connected to the class 2 and high-speed General Motor Local Area Network (GMLAN) serial data circuits monitor for serial data communications during normal vehicle operation. Operating information and commands are exchanged among the modules. The Diagnostic Trouble Code (DTC) is reported on a class 2 link to the scan tool by Powertrain Control Module (PCM) even if they may be set by different modules. The DTC will set when a node alive message has not been received from an identified module within the last 5 seconds after establishing class 2 serial data communication, or a supervised high-speed GMLAN message has not been received.
|Need more information with the U1891 CHEVROLET code?Need more information on how to fix the U1891 CHEVROLET code?
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|Need help with a U1891 CHEVROLET code?Get the U1891 Chevrolet code diagnosed by a professional: Find a repair shop in your area
|U1891 CHEVROLET code commentsHelp us improve AutoCodes.com. Leave a comment below or tell us if the information above helps you fix the code. What are the symptoms on your vehicle for the U1891 Chevrolet code? Have you replaced any parts?
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