P05E0: Brake Pedal Position Sensor A and B Correlation
Brake-by-wire and electronic brake systems use two redundant pedal position sensors. Their readings disagree by more than the diagnostic tolerance - one or both has drifted, or wiring picks up noise on one channel.
What P05E0 means
P05E0 is a generic OBD-II powertrain code in the speed, idle & cruise group.
- Check engine light
- Usually on
- Emissions-related
- No
- Limp mode possible
- Not typical
- Drive cycle to clear
- Not required
Get it fixed
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Common causes
- 01One sensor has drifted out of toleranceMost likely
Can I drive with P05E0?
Usually yes, for a short time.
The car will often drive normally, but get it diagnosed soon. If you notice rough running, warning lights flashing, overheating or a burning smell, stop driving.
Why we rate it moderate
- Turns on the check engine light
Severity is our rule-based rating from the code’s flags in OBDex and the system it affects, not an inspection of your car. If the check engine light is flashing, or you notice overheating, low oil pressure, or brake or steering problems, stop driving and get help.
How to diagnose P05E0
- 1
Confirm the code and save freeze-frame data
Read the codes with an OBD-II scan tool and note every code, not just P05E0. Save the freeze-frame data (speed, load, temperature when the fault set) before clearing anything; it tells you when the fault happens.
- 2
Fix other faults first
If other codes are stored, start with power-supply, sensor-circuit and communication codes. They can cause this code as a side effect.
- 3
Check live data
Watch the related sensor and actuator readings in live data (Brake pedal position sensor A, Brake pedal position sensor B) and compare them with expected values in the service information for your vehicle.
- 4
Test the likely causes in order
Start with the most likely cause and work down: One sensor has drifted out of tolerance. Test before replacing parts.
- 5
Check for recalls and service bulletins
Look up recalls for your exact vehicle with its VIN, and ask a dealer about technical service bulletins (TSBs). Manufacturers sometimes issue software updates or extended warranties for known faults.
- 6
Clear the code and verify the repair
After the repair, clear the code and drive the car under the conditions in the freeze-frame data to confirm it does not return.
P05E0 repair cost estimate
Estimate, not a quote. Labor times are typical ranges for this code from OBDex, and $125/hr is an assumed rate. Shop rates and labor times vary by vehicle and region. Diagnosis time may be billed separately.
- DIY difficulty
- Easy
- Good DIY job?
- Yes, with a scan tool
Basic hand tools; a common first DIY job.
Parts and systems involved
- Brake pedal position sensor A
- Brake pedal position sensor B
P05E0 FAQ
What does P05E0 mean?
P05E0 means “Brake Pedal Position Sensor A and B Correlation”. Brake-by-wire and electronic brake systems use two redundant pedal position sensors. Their readings disagree by more than the diagnostic tolerance - one or both has drifted, or wiring picks up noise on one channel.
Is P05E0 serious? Can I keep driving?
We rate P05E0 as moderate severity. Usually yes, for a short time. The car will often drive normally, but get it diagnosed soon. If you notice rough running, warning lights flashing, overheating or a burning smell, stop driving.
What causes P05E0?
The most common causes, from most to least likely: One sensor has drifted out of tolerance. Test before replacing parts, because several causes can set the same code.
How much does it cost to fix P05E0?
Typical labor is about $50–$175 at an assumed $125/hour shop rate, plus parts. That is an estimate, not a quote: labor times and rates vary by vehicle and region, and diagnosis may be billed separately.
Can I fix P05E0 myself?
DIY difficulty is easy. Many owners can handle it with a scan tool, a multimeter and basic hand tools. Always confirm the cause before buying parts.
Will P05E0 clear itself?
If the fault was intermittent, the warning may go off once the computer stops seeing it, but the code stays in memory. Fix the cause; clearing the code alone doesn’t repair anything.