Lost Communication With Four-Wheel Drive Clutch Control Module
What does U0114 mean?
The U0114 code means the vehicle's onboard diagnostic system has detected: Lost Communication With Four-Wheel Drive Clutch Control Module. This is a moderate severity code.
Common Symptoms
- 4WD or AWD warning light illuminated
- Four-wheel drive system inoperative
- Vehicle stuck in two-wheel drive mode
- Check Engine Light on
- Transfer case may not engage or disengage
Probable Causes (Ranked by Likelihood)
- Failed four-wheel drive control module Very High
- Damaged wiring harness to transfer case module High
- Corroded connector at 4WD module Moderate
- Transfer case motor or actuator failure Moderate
- Low transfer case fluid causing module fault Low
Step-by-Step Diagnostic Procedure
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Scan for DTCs in the transfer case and 4WD control module
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Check power supply and ground circuits at the 4WD module
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Inspect CAN bus wiring and connectors for damage or corrosion
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Verify transfer case fluid level and condition
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Test transfer case motor and actuator operation
Frequently Asked Questions
Can I drive with code U0114?
You can drive short distances on paved roads in two-wheel drive, but the 4WD system will not function. Avoid off-road driving or slippery conditions until the issue is resolved.
What causes U0114?
The most common cause is a failed 4WD control module or damaged wiring to the module. Corroded connectors and transfer case issues can also trigger this code.
Is U0114 expensive to fix?
Repair costs range from $200 for wiring fixes to $1000 or more for module replacement. The module may need to be programmed at a dealership.