Damaged or chafed wiring at the right front wheel, often where the harness flexes at the hub or suspension; Faulty right front wheel speed sensor with an internal open circuit; Corroded, loose or water-damaged sensor connector or harness plug; Wiring damaged after wheel, brake or suspension work, or by road debris; Open circuit, poor earth or poor supply in the harness between the sensor and the ABS module; Wheel bearing with an integrated encoder or sensor that has failed (on models that use one); Fault inside the ABS or stability control module.

C0658

Right Front Wheel Speed Sensor B Circuit/Open.

Generic
Chassis
Generic code
Medium severity

How this code is built

C: SystemChassis
0: Defined bySAE, the same on every car
6: AreaChassis area 6
58: FaultThe specific fault in that area

What it means

C0658 means the ABS or stability control module has detected an open circuit in the right front wheel speed sensor 'B' circuit. The module expects a signal or current from the sensor and sees none, so the circuit is broken or not conducting. The exact meaning of 'B' (second sensor, second channel or second circuit at that wheel) depends on the vehicle, so check the manufacturer wiring information.

Symptoms

ABS warning light on
Traction control or stability control warning light on
ABS, traction control and stability control not working
Speedometer or cruise control behaving erratically on some models
Brake pedal feels normal but ABS does not activate under hard braking

Possible causes

Damaged or chafed wiring at the right front wheel, often where the harness flexes at the hub or suspensionlikely
Faulty right front wheel speed sensor with an internal open circuitlikely
Corroded, loose or water-damaged sensor connector or harness pluglikely
Wiring damaged after wheel, brake or suspension work, or by road debrispossible
Open circuit, poor earth or poor supply in the harness between the sensor and the ABS modulepossible
Wheel bearing with an integrated encoder or sensor that has failed (on models that use one)rare
Fault inside the ABS or stability control modulerare

How to diagnose

Scan all modules for codes and read the freeze frame data to see when the fault set and whether other wheel speed codes are present.
Check live data for all four wheel speeds while driving or spinning the wheel by hand. A right front reading of zero or a dropout points to the sensor circuit.
Visually inspect the right front sensor, its wiring and its connector for chafing, cuts, corrosion, water ingress and correct routing and clips.
Gently flex the harness at the wheel and suspension while watching live data or circuit resistance to find an intermittent break.
Check the sensor connector pins for corrosion, spread terminals and a secure fit, at both the sensor end and the harness plug.
Test the sensor resistance, supply voltage and earth against the manufacturer's specification for the model, as the sensor type varies.
Test the harness for continuity between the sensor connector and the ABS module connector, and for shorts to earth or supply.
Check the sensor tip, tone ring or encoder and hub for damage, debris and excessive air gap.

How to fix

Repair or replace the damaged section of wiring, using proper sealed joints, and re-secure the harness in its clips.
Replace the right front wheel speed sensor if it tests open or out of specification.
Clean, repair or replace the corroded or damaged connector terminals and apply the correct sealing.
Replace the wheel bearing or hub assembly if the encoder or integrated sensor is damaged.
Replace or repair the ABS module only after the sensor, wiring and connectors have been proven good.
Clear the codes after the repair and road test to confirm the fault does not return.

Can I keep driving?

Medium severity

The standard braking system should still work, but ABS and stability control are likely to be switched off, so braking on slippery roads is less safe. Drive with extra care and leave extra distance, and get it fixed soon.

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