C050E code meaning
Left Rear Wheel Speed Sensor A Circuit Low
Chassis system Generic code C05xx codes Check engine light
What C050E means
C050E reports the left rear sensor circuit pulled below its expected level. GM's 2019 EBCM tables (19OBDG03D) let the Polaris ASIC set it for three separate findings: an open sensor bit, a grounded low side, looked for only at start-up or once codes have been cleared, and sensor undervoltage, which needs only 20 ms; all are Type A with the MIL. The 2025 tables quantify the open-sensor bit as high-side current under 3.5 mA. Mitsubishi's C1065-11, its C050E, covers both short and open circuits and is one of the few wheel sensor faults there that also turns on the electric parking brake warning next to the ASC, ABS and engine lamps. A wire grounded against the rear subframe or a water-logged connector is the usual cause.
C050E at a glance
- Check engine lightYes, usually on
- Emissions testNot an emissions code
- Limp modePossible
- Repair difficultyMedium, DIY possible
- Typical labor0.5 to 2.5 hours
- Clears after repairWhen cleared with a scanner
Symptoms of C050E
- ABS, stability and electric parking brake warnings on (Mitsubishi)
- ABS and stability control disabled for the rest of the trip
Common causes of C050E
- Most likelySensor wire grounded against the subframe or body
- PossibleMoisture or corrosion in the left rear connector
- PossibleLeft rear sensor shorted internally
- Less likelyLow supply voltage at the brake module (fuse, battery)
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Wss lrSensor wiring
What each part of C050E means
| C | Chassis system: brakes, ABS, steering and suspension. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 0E | The exact fault in that area. |
What to do next
- Note C050E 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 C050E
What does C050E mean?
C050E means "Left Rear Wheel Speed Sensor A Circuit Low". C050E reports the left rear sensor circuit pulled below its expected level. It is a generic code, so it means the same on every make.
Is it safe to drive with C050E?
Drive gently and only to a workshop. With C050E the car can go into limp mode (reduced power) to protect itself.
Will C050E fail an emissions test?
C050E 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 C050E to fix?
Difficulty: medium. A typical repair takes 0.5 to 2.5 hours of work. A careful DIY repair is possible with basic tools and a scanner.
Will C050E clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.