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AutoCodes - Generic - U129D

U129D Code - Lost Communication With The Precision All Wheel Steer Control Unit

- Code Popularity: 1,721 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC U129D?

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 Precision All-Wheel Steer Control Unit
  • Precision All-Wheel Steer Control Unit harness is open or shorted
  • Precision All-Wheel Steer Control Unit circuit poor electrical connection
  • Faulty Powertrain Control Module (PCM)
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How to Fix the DTC U129D?

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 U129D 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 U129D Description

The Controller Area Network (CAN) transmits/receives pulsing signals to/from the control modules simultaneously by using two signal lines (F-CAN_H and F-CAN_L). When the Powertrain Control Module (PCM) does not receive the signals from the Precision All-Wheel Steer Control Unit via the F-CAN lines for a set time, the PCM detects a malfunction and stores a Diagnostic Trouble Code (DTC).

OBDII Code U129D - Lost Communication With The Precision All Wheel Steer Control Unit - AutoCodes.com
U129D Code - Lost Communication With The Precision All Wheel Steer Control Unit

Need More Information on the Code?

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Information for Specific Makes

  • U129D Acura Lost Communication With The Precision All Wheel Steer Control Unit
  • U129D Honda Lost Communication With The Precision All Wheel Steer Control Unit

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Code U129D comments

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