Engine-Codes - Generic - U155D

U155D Code - Body Control Module Lost Communication With Right Rear Seat Heating/Venting/Cooling Switch On LIN Bus

- Code Popularity: 546 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC U155D?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Right Rear Seat Heating/Venting/Cooling Switch
  • Right Rear Seat Heating/Venting/Cooling Switch harness is open or shorted
  • Right Rear Seat Heating/Venting/Cooling Switch circuit poor electrical connection
  • Faulty Body Control Module (BCM)
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How to Fix the DTC U155D?

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 pins.

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What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the U155D code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.

What are Code Possible Symptoms?

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

What Does the U155D Code Mean?

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 Body Control Module (BCM) from the Right Rear Seat Heating/Venting/Cooling Switch has not been received.

U155D Code - Body Control Module Lost Communication With Right Rear Seat Heating/Venting/Cooling Switch On LIN Bus

Need more Information on the Code?

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Code U155D Information for Specific Makes

  • U155D Buick Body Control Module Lost Communication With Right Rear Seat Heating/Venting/Cooling Switch On LIN Bus
  • U155D Cadillac Body Control Module Lost Communication With Right Rear Seat Heating/Venting/Cooling Switch On LIN Bus
  • U155D Chevrolet Body Control Module Lost Communication With Right Rear Seat Heating/Venting/Cooling Switch On LIN Bus
  • U155D GMC Body Control Module Lost Communication With Right Rear Seat Heating/Venting/Cooling Switch On LIN Bus

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