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U152A GMC Code - HVAC Control Module Lost Communication With Left Upper Auxiliary Air Temperature Door Actuator On LIN Bus

- Code Popularity: 456 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC U152A GMC?

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 Left Upper Auxiliary Air Temperature Door Actuator
  • Left Upper Auxiliary Air Temperature Door Actuator harness is open or shorted
  • Left Upper Auxiliary Air Temperature Door Actuator circuit poor electrical connection
  • Faulty Heating, Ventilation, and Air Conditioning (HVAC) Control Module
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How to Fix the DTC U152A GMC?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the U152A GMC code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

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

Code U152A GMC Description

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 Heating, Ventilation, and Air Conditioning (HVAC) Control Module from the xxx has not been received.

OBDII Code U152A GMC - HVAC Control Module Lost Communication With Left Upper Auxiliary Air Temperature Door Actuator On LIN Bus - AutoCodes.com
U152A GMC Code - HVAC Control Module Lost Communication With Left Upper Auxiliary Air Temperature Door Actuator On LIN Bus

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