What Does C1412 Mean?
The ABS module has detected a short-to-ground condition in the left front (LF) traction control valve solenoid circuit. The circuit wiring is making unintended contact with vehicle ground, disrupting the module's ability to control the solenoid. Traction control for the left front wheel is disabled.
Common Causes
40%
Chafed or pinched wire insulation contacting chassis metal
25%
Water intrusion and corrosion creating ground paths in connectors
20%
LF traction control solenoid coil internally shorted to case ground
15%
ABS module internal driver circuit fault pulling line to ground
Diagnostic Steps
1
Disconnect the ABS HCU connector. Measure resistance from each LF solenoid circuit pin to chassis ground — should be OL (open/infinite). Low resistance confirms a short to ground.
2
Disconnect the solenoid at the valve and re-measure at the module harness connector. If the short clears, the solenoid is internally shorted.
3
If the short persists with the solenoid disconnected, inspect the wiring harness for chafing against subframe, engine mounts, steering components, or body edges.
4
Check connectors for moisture and green corrosion deposits that create conductive paths. Clean with contact cleaner and apply dielectric grease.
5
After repair, verify solenoid resistance is within spec (3-6 ohms), clear codes, and test traction control function.
Estimated Repair Cost
$100 - $1,100
Parts + labor, varies by vehicle and location
The ABS module has detected a short-to-ground condition in the left front (LF) traction control valve solenoid circuit. The circuit wiring is making unintended contact with vehicle ground, disrupting the module's ability to control the solenoid. Traction control for the left front wheel is disabled.
The most common cause of C1412 (Traction Control Valve LF Circuit Short To Ground) is: Chafed or pinched wire insulation contacting chassis metal
Typical repair costs for C1412 range from $100 to $1,100, depending on the vehicle, location, and whether you do it yourself or go to a shop.
LF traction control is disabled. A short-to-ground could potentially cause unintended solenoid activation, resulting in unexpected left front brake application. Watch for brake drag or pulling to the left. Drive cautiously and have the system repaired soon.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to C1412 to identify the root cause.
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Quick Info
Category
Chassis
System
ABS / Traction Control
Difficulty
Type
Manufacturer
Recommended Tools
OBD2 Scanner
A quality scan tool helps you read codes, view live data, and clear faults.
