OBD-II Code
C0245
Severity
Not yet reviewed
Nobody on our side has assessed this code yet, so we are not going to guess at how serious it is.
Can you drive it
We cannot say
Treat it as unknown until a shop reads it with live data. If the check-engine light is FLASHING, stop driving as soon as it is safe to — that means an active misfire, whatever the code.
Indicative cost (USD)
$80–$500
From this code's diagnostic notes. Varies by vehicle, diagnosis, parts, and local labor. This is not a repair quote.
$80 (WSS replacement DIY) to $500 (complete hub assembly with bearing).
C0245 means the ABS module is seeing a wheel speed sensor frequency error — the WSS signal is present but out of expected range relative to vehicle speed or the other three sensors.
How a shop works this
Work from evidence to part, not the other way round. A code names a circuit or a symptom; it does not name the part that failed.
Note every code that is set, not just this one.
Codes that appear together usually narrow the cause faster than any one of them read alone.
Read the freeze frame — the conditions the fault was recorded under.
Cold or warm, idle or load, road speed and engine speed. A fault that only appears cold is a different fault from one that only appears under load, even with the same code on the scanner.
Confirm the fault is current rather than history.
Clear the code and see whether it returns under those same conditions. A code that does not come back may have been logged during a repair, a flat battery, or a bad connection that has since been disturbed.
Then follow the diagnostic notes further down this page, in the order they are written.
They are written in the order a shop works this code, cheapest checks first. Where they name a component, inspect its wiring and connector before replacing it.
If the code comes back after a repair, the underlying fault is still there. That is the point to bring in a scanner with live data and freeze-frame, or a shop that has one.
Common symptoms
- Check engine light
Read the full diagnostic procedureC0245 means the ABS module is seeing a wheel speed sensor frequency error — the WSS signal is present but out of expected range relative to vehicle s…
C0245 means the ABS module is seeing a wheel speed sensor frequency error — the WSS signal is present but out of expected range relative to vehicle speed or the other three sensors. On a passive Hall-effect WSS (older GM/Ford), output is an AC sine wave that should produce 0.4-1.5V AC peak-to-peak at 30 mph rolling; on a modern active WSS (most 2005+ vehicles), output is a square-wave digital signal swinging 0.2-1.0V DC at idle and rising in frequency with wheel speed.
Diagnostic order
- Inspect the tone ring at each wheel — bent, rusted, or missing teeth on the ring will produce a frequency error even with a perfect sensor; common on bearing replacements where the new hub's tone ring is missing a tooth or two from shipping damage.
- Check the air gap at the sensor (0.5-1.5 mm typical) — too far means weak signal, too close means physical contact damage.
- Back-probe the WSS connector with a DMM in AC volts (passive) or scope it (active) while spinning the wheel by hand — passive should produce visible AC voltage; active should show a clean square wave.
- Check sensor resistance on passive sensors — typical 800-2,500 ohms; infinite means open coil, near-zero means shorted. Misdiagnosis caveat: rust buildup between the tone ring and the bearing race ('crusty wheel-speed-sensor disease') displaces the ring outward into the sensor or causes uneven gap — wire-wheel the rust off the bearing flange and reseat the ring before condemning a $80-$200 sensor.
Vehicle-specific patterns2004-2012 GM trucks (Silverado, Sierra, Tahoe) and Cadillac Escalade throw C0245 from rust packing into the front hub bearing assembly between the to…
- 2004-2012GM trucks (Silverado, Sierra, Tahoe) and Cadillac Escalade throw C0245 from rust packing into the front hub bearing assembly between the tone ring and the WSS; the fix is a complete hub replacement ($150-$400 per side) since the tone ring is integral to the hub.
- 2007-2014Ford Edge/Flex/Explorer with the Haldex AWD system commonly throws C0245 from rear-wheel WSS harness chafe at the trailing arm.
- 2003-2009Toyota 4Runner/Tacoma throws C0245 from corroded WSS connectors at the front uprights (salt-belt vehicles).
- 2002-2008Mini Cooper R50/R53 throws C0245 from ABS ring damage during CV-axle replacement where techs pry against the ring teeth.
Estimated repair$80 (WSS replacement DIY) to $500 (complete hub assembly with bearing).
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