Engine-Codes - Generic - U156D

U156D - Chassis Control Module Lost Communication With Transmission Shift Lever On LIN Bus

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

U156D Possible Causes

  • Faulty Transmission Shift Lever
  • Transmission Shift Lever harness is open or shorted
  • Transmission Shift Lever circuit poor electrical connection
  • Faulty Chassis Control Module

How is the U156D 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 U156D code

Labor: 1.0

The cost to diagnose the U156D 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)

U156D Meaning

The Local Interconnect Network (LIN) Bus consists of a single wire with a transmission rate of 10.417 Kbit/s. The serial data is transmitted over a LIN circuit between a master control module and other LIN devices within a particular subsystem. If serial data communication is lost between any of the LIN devices on the LIN bus network, the master control module will set a no communication code against the non-communicating LIN device. The Diagnostic Trouble Code (DTC) will set when a supervised periodic message to the Chassis Control Module from the Transmission Shift Lever has not been received.

More Information

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Information for specific makes

  • U156D BUICK Chassis Control Module Lost Communication With Transmission Shift Lever On LIN Bus
  • U156D CADILLAC Chassis Control Module Lost Communication With Transmission Shift Lever On LIN Bus
  • U156D CHEVROLET Chassis Control Module Lost Communication With Transmission Shift Lever On LIN Bus
  • U156D GMC Chassis Control Module Lost Communication With Transmission Shift Lever On LIN Bus

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