P08A8 code meaning
Clutch Pedal Position Sensor A Circuit Range/Performance
Powertrain system Generic code P08xx codes Check engine light
What P08A8 means
P08A8 flags a clutch pedal sensor whose signal is electrically valid but contradicts how the car is actually driving. GM uses it on manual cars since model year 2018 (before: P0806), e.g. the LV7 1.4 L engine and the 2019 Corvette ZR1 (LT5): when engine speed to output shaft speed shows that a gear is engaged and transmitting torque, but the pedal reads as pressed, the filtered position error must stay below 4 %. Enabled above 4.3 mph (LT5: 5.6 mph), not in 4WD low, torque above a table, no circuit, crank or speed sensor faults; Type A, MIL after one trip. Circuit faults are P08A9/P08AA. Typical result: start-stop and cruise control off, and the engine computer may misjudge clutch state.
P08A8 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modeNot expected
- Repair difficultyMedium, DIY possible
- Typical labor0.5 to 2 hours
- Clears after repairAfter a drive cycle
Symptoms of P08A8
- Malfunction indicator lamp on
- Start-stop and cruise control switched off
- Rev-matching or hill-start functions may be disabled
Common causes of P08A8
- Most likelySensor loose or misaligned on the pedal bracket, so its reading no longer matches pedal travel
- PossibleWorn or drifting sensor track giving an offset signal
- PossibleDriver resting a foot on the clutch pedal, or a floor mat holding it down
- Less likelyCorroded connector adding resistance to signal or ground
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Clutch pedal position sensor aWiring harnessECM
What each part of P08A8 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 8 | Area: transmission. |
| A8 | The exact fault in that area. |
What to do next
- Note P08A8 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 P08A8
What does P08A8 mean?
P08A8 means "Clutch Pedal Position Sensor A Circuit Range/Performance". P08A8 flags a clutch pedal sensor whose signal is electrically valid but contradicts how the car is actually driving. It is a generic code, so it means the same on every make.
Is it safe to drive with P08A8?
Usually yes, for a short time, if the check engine light is steady and the car drives normally. If the light flashes or the car runs badly, stop and have it checked.
Will P08A8 fail an emissions test?
Yes, it can. P08A8 is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P08A8 to fix?
Difficulty: medium. A typical repair takes 0.5 to 2 hours of work. A careful DIY repair is possible with basic tools and a scanner.
Will P08A8 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.