C0555 code meaning
Left Front Wheel Speed Sensor A Incorrect Component Installed
Chassis system Generic code C05xx codes Check engine light
What C0555 means
The left front wheel speed signal is present, but the ABS module concludes that the part behind it is not the one it expects. Mitsubishi maps its code C1061-4A on the 2023 Outlander PHEV to C0555 and defines it as the front left sensor fitted in the wrong position; the module needs no more than 3 s to flag it, provided the sensor supply is intact, and the second affected drive brings on the MIL together with the ASC and ABS warnings. ABS, EBD, ASC, traction control, hill descent control and the electric parking brake function are suspended. One way a module can spot this: sensor ICs such as Allegro's A19302 report rotation direction, with forward defined by mounting orientation, so a sensor of the wrong variant or side reads the wheel as turning backwards. After replacing a sensor, check the part number before anything else.
C0555 at a glance
- Check engine lightYes, usually on
- Emissions testNot an emissions code
- Limp modePossible
- Repair difficultyEasy, DIY possible
- Typical labor0.3 to 1.5 hours
- Clears after repairAfter a drive cycle
Symptoms of C0555
- ABS and ESC/ASC warning lamps on after a sensor or hub repair
- Check-engine lamp on some models
- Electric parking brake and hill descent control unavailable
Common causes of C0555
- Most likelyWrong sensor variant fitted (other side, other axle or passive instead of active)
- PossibleSensors or their connectors swapped between wheel positions
- Less likelyABS control unit misjudges a correct sensor
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Wss lf
What each part of C0555 means
| C | Chassis system: brakes, ABS, steering and suspension. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 55 | The exact fault in that area. |
What to do next
- Note C0555 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about C0555
What does C0555 mean?
C0555 means "Left Front Wheel Speed Sensor A Incorrect Component Installed". The left front wheel speed signal is present, but the ABS module concludes that the part behind it is not the one it expects. It is a generic code, so it means the same on every make.
Is it safe to drive with C0555?
Drive gently and only to a workshop. With C0555 the car can go into limp mode (reduced power) to protect itself.
Will C0555 fail an emissions test?
C0555 is not an emissions code, so on its own it usually does not fail an emissions test. Other stored codes or a lit check engine light still can.
How hard is C0555 to fix?
Difficulty: easy. A typical repair takes 0.3 to 1.5 hours of work. A careful DIY repair is possible with basic tools and a scanner.
Will C0555 clear itself after the repair?
After the repair the car has to complete a drive cycle (a mix of city and highway driving) before the test runs again. Until then the readiness monitor shows "not ready", which can fail an inspection.