Fault in the ABS hydraulic modulator valve (internal inlet solenoid for the right front channel); Faulty ABS control unit valve driver or internal circuit; Wiring or connector fault between the control unit and the modulator, such as corrosion, loose pins or chafed wires; Low or unstable battery or charging voltage upsetting the valve circuit monitoring; Poor earth or power supply to the ABS unit, including blown fuse or relay (layout depends on the model); Contaminated brake fluid or sticking valve causing implausible valve response.

C0014

Right Front Inlet Control.

Generic
Chassis
Generic code
Medium severity

How this code is built

C: SystemChassis
0: Defined bySAE, the same on every car
0: AreaChassis area 0
14: FaultThe specific fault in that area

What it means

C0014 is defined under SAE J2012 as a fault in the right front inlet control, meaning the inlet valve circuit for the right front brake channel in the ABS/stability control hydraulic modulator. The ABS control unit has detected an electrical or control fault, such as an open circuit, short or implausible valve response. It will normally switch off ABS and related systems such as traction and stability control, while the base braking system keeps working. Exact monitoring and wiring layout vary by model.

Symptoms

ABS warning light on
Traction or stability control warning light on
ABS, traction or stability control not working
Possible brake pedal feel change on some models
Fault returns soon after clearing

Possible causes

Fault in the ABS hydraulic modulator valve (internal inlet solenoid for the right front channel)likely
Faulty ABS control unit valve driver or internal circuitpossible
Wiring or connector fault between the control unit and the modulator, such as corrosion, loose pins or chafed wirespossible
Low or unstable battery or charging voltage upsetting the valve circuit monitoringpossible
Poor earth or power supply to the ABS unit, including blown fuse or relay (layout depends on the model)possible
Contaminated brake fluid or sticking valve causing implausible valve responserare

How to diagnose

Read all stored codes and freeze frame data, noting any other wheel speed, voltage or valve codes
Check brake fluid level and condition, and look for leaks around the modulator and right front brake
Test battery condition and charging voltage, as low voltage can set valve faults
Inspect the ABS unit connector, wiring and harness for damage, corrosion, water ingress or loose pins
Check the relevant fuses, relays and the power and earth supplies to the ABS unit against the model wiring diagram
Check valve circuit resistance and continuity at the connector following manufacturer data
Use a scan tool with bidirectional tests to activate the right front inlet valve, if the vehicle supports it
Clear the codes and road test to see if the fault returns

How to fix

Repair or replace damaged wiring, terminals or connectors in the ABS circuit
Restore proper power and earth supply, and replace faulty fuses or relays
Charge or replace a weak battery and repair any charging system fault
Replace or repair the hydraulic modulator or valve block if the valve is faulty, then bleed the brakes as specified
Replace or repair the ABS control unit if it is confirmed faulty, and carry out any required coding or setup
Renew contaminated brake fluid and bleed the system if it is the cause

Can I keep driving?

Medium severity

The car normally brakes without ABS, but the safety systems may be off, so allow longer stopping distances and take extra care on wet or slippery roads. Have it checked soon, and stop driving if the brake warning light is also on or the pedal feels wrong.

Guide written by AI from the code's definition. Confirm with a diagnosis before replacing parts.