U0135 Code - Lost Communication With Differential Control Module Front
Quick Answer
The U0135 code indicates that there is a communication problem between the vehicle's main computer system and the Differential Control Module Front. Common causes include Corroded or damaged wiring harness connecting the main computer system to the Differential Control Module Front, Faulty Differential Control Module Front, Issues with the main computer system. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- U0135 indicates Lost Communication With Differential Control Module Front.
- Common causes
- Common causes include Corroded or damaged wiring harness connecting the main computer system to the Differential Control Module Front, Faulty Differential Control Module Front, Issues with the main computer system.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code U0135 Description
The U0135 code indicates that there is a communication problem between the vehicle's main computer system and the Differential Control Module Front. The Differential Control Module Front is responsible for controlling the front differential in all-wheel drive vehicles, adjusting power distribution between the front and rear wheels to optimize traction and handling. When communication is lost with this module, it can lead to issues with the vehicle's drivability and performance.
Common Causes of U0135
- Corroded or damaged wiring harness connecting the main computer system to the Differential Control Module Front.
- Faulty Differential Control Module Front.
- Issues with the main computer system.
- Water damage to the module or wiring due to exposure to the elements.
- Electrical interference from aftermarket devices or modifications.
Symptoms of U0135
- Illumination of the traction control or stability control warning lights on the dashboard.
- Difficulty shifting gears, especially in all-wheel drive mode.
- Reduced traction or poor handling on slippery surfaces.
- Increased fuel consumption due to inefficient power distribution.
- Harsh or jerky movements when accelerating, particularly on uneven terrain.
How to Fix U0135
- Begin by diagnosing the specific cause of the communication loss using a diagnostic scanner to retrieve trouble codes and data from the Differential Control Module Front.
- Inspect the wiring harness for any signs of damage, corrosion, or loose connections. Repair or replace any faulty wiring as needed.
- Test the Differential Control Module Front for proper functionality and replace it if it is found to be faulty.
- Check the main computer system for any issues with communication protocols or software glitches. Update or reprogram the system if necessary.
- Clear the trouble codes from the vehicle's memory and perform a test drive to ensure the issue has been resolved.
Cost to Fix U0135
The cost of repairing a lost communication issue with the Differential Control Module Front can vary depending on the specific cause of the problem and the make and model of the vehicle. On average, the parts for this repair could range from $200 to $500, with labor costs adding an additional $100 to $200. However, prices can vary significantly based on location, dealership rates, and the complexity of the repair. It is advisable to consult with a qualified mechanic or dealership for a more accurate cost estimate.
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