What Does U0114 Mean?
The vehicle's control modules cannot communicate with the Four-Wheel Drive Clutch Control Module over the network. This affects the operation and engagement of the electronically controlled four-wheel drive system.
Common Causes
35%
Damaged wiring harness or corroded connectors to 4WD module
30%
Failed Four-Wheel Drive Clutch Control Module
20%
CAN bus circuit open or short condition
10%
Power or ground circuit failure to 4WD module
5%
Module software corruption or version incompatibility
Diagnostic Steps
1
Step 1: Verify fuse and relay operation for the 4WD clutch control module; check for proper voltage supply
2
Step 2: Inspect connectors at the 4WD module for corrosion, bent pins, or water damage
3
Step 3: Test communication with 4WD module using scan tool and verify module is powered and responding
4
Step 4: Check CAN bus continuity and resistance between 4WD module and other control modules
5
Step 5: If wiring and power are good, test 4WD module operation or replace if internal failure confirmed
Estimated Repair Cost
$200 - $1,400
Parts + labor, varies by vehicle and location
The vehicle's control modules cannot communicate with the Four-Wheel Drive Clutch Control Module over the network. This affects the operation and engagement of the electronically controlled four-wheel drive system.
The most common cause of U0114 (Lost Communication With Four-Wheel Drive Clutch Control Module) is: Damaged wiring harness or corroded connectors to 4WD module
Typical repair costs for U0114 range from $200 to $1,400, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Four-wheel drive system will not engage or may stay engaged permanently. Vehicle can typically be driven in two-wheel drive mode, but off-road capability and adverse weather traction may be compromised.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to U0114 to identify the root cause.
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Quick Info
Category
Network
System
Four-Wheel Drive System
Difficulty
Type
Generic (SAE)
Recommended Tools
OBD2 Scanner
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