The Lemon IndexThe second gas pedal position signal reads too high.
Fix soon. Book a shop visit this week. Stop driving if the car slips, shakes, overheats or warns you.
Failing accelerator pedal sensor. Then: wiring fault.
Owners named P2128 in 8 complaints to the U.S. government, most often on the Lexus.
The details
What P2128 means
The second gas pedal position signal reads too high.
Can I drive with P2128?
Fix soon. Book a shop visit this week. Stop driving if the car slips, shakes, overheats or warns you.
38% of the owner complaints that name P2128 also say the car warning lights and electrical faults. A complaint can describe more than one problem, so this doesn't prove the code caused it.
Common causes of P2128
- Failing accelerator pedal sensor
- Wiring fault
A shop should confirm the cause with a scan and tests before replacing parts.
What owners describe
- Warning lights and electrical faults: 38% of complaints
Share of complaints naming the code whose text also mentions each problem.
Related codes
P2127 P2122 P2121 P2135 P2119 P2118 P2138 P2112
Quick answers
What does P2128 mean?
Throttle/Pedal Position Sensor/Switch E Circuit High. The second gas pedal position signal reads too high.
Can I drive with P2128?
Fix soon. Book a shop visit this week. Stop driving if the car slips, shakes, overheats or warns you.
What causes P2128?
Failing accelerator pedal sensor; Wiring fault.
Counts: NHTSA owner complaints whose text names P2128. A complaint is an owner's report, not a diagnosis. Meanings: the standard SAE J2012 definitions in our own words; manufacturer codes only where verified for that make. General information, not repair advice for your car.