What Does C1194 Mean?
The ABS outlet valve coil for the left front (LF) circuit has a general failure. This solenoid valve controls the release of brake pressure during an ABS event on the left front wheel. If this valve cannot be actuated, the ABS module cannot reduce brake pressure on the LF corner to prevent wheel lockup. ABS function is degraded or disabled.
Safety Warning
The ABS cannot release brake pressure on the left front wheel during an ABS event, which means the LF wheel could lock during hard braking on slippery surfaces. ABS is likely fully disabled. Conventional braking still works, but use extra caution. Have repaired by a professional as this involves the ABS hydraulic unit.
Common Causes
40%
ABS outlet valve solenoid coil failed (open or shorted internally) within the hydraulic control unit
25%
Wiring fault between the ABS module and the outlet valve solenoid
20%
ABS module driver circuit failure for the LF outlet valve
15%
Poor connection at the ABS hydraulic unit connector
Diagnostic Steps
1
Access the ABS hydraulic control unit connector. Identify the LF outlet valve coil pins from the wiring diagram. Measure coil resistance — typical spec is 3-8 ohms. OL indicates an open coil; very low resistance indicates a short.
2
Inspect the ABS hydraulic unit connector for corrosion, pushed-back pins, or moisture intrusion. These connectors are under the hood and exposed to the elements.
3
Using the scan tool's ABS actuator test, command the LF outlet valve. You should hear a faint click from the hydraulic unit. No click with proper voltage at the connector suggests a failed solenoid.
4
Measure the voltage at the valve coil pins while commanding the actuator. The module should supply battery voltage to drive the solenoid. If voltage is present but the valve does not click, the solenoid coil is open or the valve is mechanically seized.
5
Note: The outlet valve is typically internal to the ABS hydraulic unit and not individually serviceable. If confirmed failed, the entire ABS hydraulic unit or modulator assembly usually requires replacement.
Estimated Repair Cost
$400 - $1,500
Parts + labor, varies by vehicle and location
The ABS outlet valve coil for the left front (LF) circuit has a general failure. This solenoid valve controls the release of brake pressure during an ABS event on the left front wheel. If this valve cannot be actuated, the ABS module cannot reduce brake pressure on the LF corner to prevent wheel loc...
The most common cause of C1194 (ABS Outlet Valve Coil LF Circuit Failure) is: ABS outlet valve solenoid coil failed (open or shorted internally) within the hydraulic control unit
Typical repair costs for C1194 range from $400 to $1,500, depending on the vehicle, location, and whether you do it yourself or go to a shop.
The ABS cannot release brake pressure on the left front wheel during an ABS event, which means the LF wheel could lock during hard braking on slippery surfaces. ABS is likely fully disabled. Conventional braking still works, but use extra caution. Have repaired by a professional as this involves the ABS hydraulic unit.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to C1194 to identify the root cause.
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Quick Info
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Chassis
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ABS / Traction Control
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