Damaged or corroded wiring harness between the right front wheel speed sensor and the ABS module; Failed right front wheel speed sensor (open internal winding or damaged connector); Loose, dirty, or corroded electrical connector at the sensor or ABS module; Broken sensor mounting bracket or air gap misalignment due to debris or damage; Water intrusion or road salt corrosion in the sensor circuit; Faulty ABS control module (less common but possible)

DTC codes / C06xx · Brakes, steering and suspension / C0658

C0658Right Front Wheel Speed Sensor B Circuit/Open

Q: What does code C0658 mean?

Right Front Wheel Speed Sensor B Circuit/Open. C0658 indicates that the antilock braking system (ABS) control module has detected an open circuit in the right front wheel speed sensor's 'B' signal circuit, which is the second channel on sensors that use a dual-wire or redundant output. The module monitors the expected voltage or current on that circuit and sets the code when the signal is missing, out of range, or electrically open.

C0658 indicates that the antilock braking system (ABS) control module has detected an open circuit in the right front wheel speed sensor's 'B' signal circuit, which is the second channel on sensors that use a dual-wire or redundant output. The module monitors the expected voltage or current on that circuit and sets the code when the signal is missing, out of range, or electrically open.

SystemChassis

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaBrakes, steering and suspension

Symptoms you may notice

ABS warning light illuminated on the dashboard
Traction control or stability control warning light also on
Often no symptoms besides the warning light
ABS may deactivate, increasing stopping distance in slippery conditions
Intermittent warning light that flickers over bumps or during turns
Speedometer or cruise control may behave erratically if the sensor signal is used for those functions

Common causes, most likely first

Damaged or corroded wiring harness between the right front wheel speed sensor and the ABS module
Failed right front wheel speed sensor (open internal winding or damaged connector)
Loose, dirty, or corroded electrical connector at the sensor or ABS module
Broken sensor mounting bracket or air gap misalignment due to debris or damage
Water intrusion or road salt corrosion in the sensor circuit
Faulty ABS control module (less common but possible)

How to diagnose and fix it

Inspect the right front wheel speed sensor connector and wiring for visible damage, corrosion, or looseness
Check the sensor's mounting and air gap for debris or a bent bracket, and clean or reposition as needed
Measure the sensor's resistance and compare to the manufacturer's specification to rule out an open sensor
Back-probe the sensor circuit at the ABS module connector and check for continuity and short-to-ground on the 'B' circuit
Perform a wiggle test on the harness while monitoring live wheel speed data to catch intermittent opens
Replace the right front wheel speed sensor if resistance is out of spec or the signal is absent
If the sensor and wiring test good, diagnose or replace the ABS control module as the last step

What the 'B' circuit really tells you

Many technicians replace the wheel speed sensor first, but an open in the harness or connector is just as common and costs far less to fix.
The 'B' circuit designation means this is a secondary or redundant signal on some sensors, so a failure may not disable basic ABS but will set the code and disable advanced functions like stability control.
Debris stuck to the sensor tip or a worn tone ring can mimic an open circuit by producing an erratic signal that the module interprets as a circuit fault.
A weak battery or charging system fault can cause the ABS module to log phantom open-circuit codes, so check system voltage before condemning parts.
After repairs, the code may need to be cleared with a scan tool and the vehicle driven above a set speed for the module to self-test and turn off the light.

Can I keep driving with C0658?

You can usually drive the vehicle with this code, but the ABS and traction control systems may be disabled, so allow extra stopping distance and avoid slippery or loose surfaces. Have the fault diagnosed soon, especially if the warning light is accompanied by brake pedal pulsation or unusual noises.

Tools that help

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Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.