C050F code meaning
Left Rear Wheel Speed Sensor A Circuit High
Chassis system Generic code C05xx codes Check engine light
What C050F means
C050F covers the opposite electrical case: the left rear circuit sits too high, as when the signal wire touches a battery-fed conductor. For GM's 2016 hybrids, 12 V surpassed on the signal wire for 0.12 s, with more than 6.9 V system voltage, is the trigger; the 2023 tables instead look at current and flag a signal wire carrying over 50 mA, again within 0.12 s and as Type A. Mitsubishi lists C1065-12 as C050F, a short circuit found within one second that lights the MIL after one trip. Rear harnesses often share a loom with parking brake motor, trailer socket or tail lamp feeds, so insulation damage near those conductors is worth checking before a sensor is replaced.
C050F at a glance
- Check engine lightYes, usually on
- Emissions testNot an emissions code
- Limp modePossible
- Repair difficultyMedium, DIY possible
- Typical labor0.5 to 3 hours
- Clears after repairWhen cleared with a scanner
Symptoms of C050F
- ABS and stability lamps on immediately, MIL on some makes
- No ABS regulation, rear brake force distribution in fallback mode
Common causes of C050F
- Most likelySignal wire shorted to a battery-fed circuit in the rear loom
- PossibleLeft rear sensor draws excessive current internally
- Less likelyBrake module input stage defective
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 C050F means
| C | Chassis system: brakes, ABS, steering and suspension. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 0F | The exact fault in that area. |
What to do next
- Note C050F 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 C050F
What does C050F mean?
C050F means "Left Rear Wheel Speed Sensor A Circuit High". C050F covers the opposite electrical case: the left rear circuit sits too high, as when the signal wire touches a battery-fed conductor. It is a generic code, so it means the same on every make.
Is it safe to drive with C050F?
Drive gently and only to a workshop. With C050F the car can go into limp mode (reduced power) to protect itself.
Will C050F fail an emissions test?
C050F 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 C050F to fix?
Difficulty: medium. A typical repair takes 0.5 to 3 hours of work. A careful DIY repair is possible with basic tools and a scanner.
Will C050F clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.