P2128

Throttle/Pedal Position Sensor/Switch "E" Circuit High

DTC P2128, sometimes indicated as P212800 is an OBD diagnostic trouble code indicating a manufacturer-specific fault with the vehicle powertrain (i.e. engine and gearbox). This code identifies an error with the air/fuel mixture causing throttle/pedal position sensor/switch "e" circuit high.

  • P2128: Throttle/Pedal Position Sensor/Switch "E" Circuit High
  • P2128: Accelerator pedal position (APP) sensor/switch E – high input
  • P2128: Throttle position (TP) sensor/switch E – high input
  • P2128 00: Accelerator pedal position (APP) sensor/switch E - high input
  • P2128 00: Throttle position (TP) sensor/switch E - high input

See Also: Related Error Codes
DTC Trouble Code Search
Bulletins

Bulletins are notices put out by manufacturers in conjunction with the NHTSA to notify the public of manufacturing issues or changes.

  • SSM 52420 - ENGINE AND ENGINE COOLING
    FORD: Some 2023-2024 f-super duty vehicles may exhibit an illuminated powertrain malfunction (wrench) indicator with diagnostic trouble codes (dtc) P2122, P2123, P2127, P2128, and/or P2138 stored in the powertrain control module (pcm). The vehicl
  • 167-B1303-12 - EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
    HINO: 13-004 correction of 2013my workshop manual. There are two different troubleshooting methods for dtc P2122, P2123, P2127 and P2128 in the the workshop manual. (one is the check sheet type, and the other one is the flow chart.) the troubles
  • PIC-4603A - VEHICLE SPEED CONTROL:ACCELERATOR PEDAL
    SAAB: Saab: accelerator pedal position sensor dtcs set in ecm 2003-2009 saab. App sensor dtc's of P2122-00, P2123-00, P2126-00, P2127-00, P2128-00, and/or P2138-00 in the ecm. These dtc's may be very intermittent and are difficult to reproduce
  • 08-06-04-012B - VEHICLE SPEED CONTROL:ACCELERATOR PEDAL
    CHEVROLET: Gmc: ei08047-intermittent mil/ses, dtc(s) P2120, 02122, 02123, 02125, P2127, P2128, P2138 with reduced engine power (replace accelerator pedal). This may be caused by corrosion at the accelerator pedal connector. *pe
  • 08-06-04-012 - ENGINE AND ENGINE COOLING:ENGINE
    CHEVROLET: Ei08047 - intermittent mil/ses, dtc's P2120, P2122, P2123, P2125, P2127, P2128, P2138 with reduced engine power. *nj
  • 01746 - ENGINE AND ENGINE COOLING:ENGINE
    OLDSMOBILE: 4.2 5.3 ll8 lm4 engine with diagnostic trouble code P2120 or P2122 or P2123 or P2127 or P2128. *mr
Consumer Complaints for this DTC



9999 NISSAN 999R5-AR000

Over the past 3 years, i've had my 2002 Nissan sentra ser spec v into Nissan 15 times for service. They have yet to fix it. Every 1-7 months i have to bring it back. The car has shut off and stalled on me in traffic, which is very dangerous. The ecm has been replaced twice ' many others have reported problems with the ecm online ' i believe it is bad, as well as other parts, and Nissan needs to issue recalls on this car. Problem # / date / problem / solution #1 1/31/08/service engine soon (ses) light/recall r0712 ' reprogram ecm (update of the software). Evap leak (#1), resecure fuel cap #2 8/23/08/ses/idle air control reset (#1): performed idle air relearn, reset ecm set idle, adjust idle control valve. $165 #3 1/9/09/car won't start/codes P0605, po183, P2128, P1229, P0122. Replace ecm unit (#1) due to pulling too many codes // main harness pin test, repair fuel pump wire in main harness, $449.00 #4 1/28/09/ses / code P0455 evap gross leak (#2). Repair fuel lines, replace "o" ring, $302.00. #5 6/6/09/ses, stalls on highway / code P1456 evap very small leak (#3), recurred gas cap. #6 7/12/09/ses, no power / code po233, replace throttle chamber (#1) #7 7/21/09/ses/code P1456 evap small leak (#4), replaced vent control valve #8 7/28/09/car shuts off in traffic / performed air idle learn (#2) #9 12/2/09/car shifting hard / santa monica Nissan determines there is no communication between the sensor and the ecm (computer), which means it's an electrical problem, and they want to do a pin test for $575 #10 12/7/09/ses/replaced throttle assembly (#2) #11 12/24/09/ses/replace radiator #12 4/24/10/ses/diagnostics showed tp sensor, performed idle control learn volume (#3) #13 5/12/10/ses, car stalls / replace throttle body sensor (#3) #14 11/6/10/ses/repaired ground wire at ecm #15 11/16/10/car shuts off in traffic / replace ecm, charge $111.50 for car rental i have a document with more info and receipts i can email, fax or send to you.
VEHICLE SPEED CONTROL, UNKNOWN OR OTHER EQUIPMENT:ELECTRICAL ELECTRICAL SYSTEM EQUIPMENT:MECHANICAL



2018 INFINITI QX30 with 59000.0 miles

While driving vehicle there is a sudden lost of engine power and vehicle will not accelerate. Several warning indicators come up on the dash. Warnings are 'emergency brake inoperative', 'traction control inoperative, see owners manual', 'icc inoperative. I'm getting engine code P2128 'accelerator pedal position sensor'. The car is not safe to drive. Dealer cannot/will not repair the problem.
FUEL/PROPULSION SYSTEM, FUEL/PROPULSION SYSTEM



2011 TOYOTA CAMRY with 23277.0 miles

I was driving along on a city street at night and suddenly both the check engine and trac off lights illuminated and the vehicle lost speed. I tried depressing the accelerator all the way, but the speed could not exceed 25 mph. So, i took it to the dealer and the diagnostic obd-ii code was P2128. As a result they replaced the accelerator pedal that was diagnosed as open circuit 552011. The cost was covered by manufacturer warranty. My concern is that if it happened while i was driving on a highway, i would not be here now to report it. Also, i was under the impression that Toyota had resolved this issue.
VEHICLE SPEED CONTROL,



2008 GMC YUKON XL with 20000.0 miles

Tl* the contact owns a 2008 Gmc Yukon Xl. The contact stated that the vehicle would only accelerate to 10 t0 15 mph. In addition, the stabilitrac, engine control module, and engine power reduced indicators illuminated. The contact was able to drive the vehicle onto the road shoulder. The vehicle was taken to southern green brier Gmc (1300 south military highway, chesapeake, va 23320, 757-424-2418). The deaeler performed a diagnostic test that located failure codes P2122, P2138, and P2128. The dealer replaced the battery twice and the battery cables were replaced several times; however, the failure was not corrected. The contact also stated that the vehicle was taken to four unknown dealers who stated that the failure was due to an electrical failure. The manufacturer was contacted and provided case number: [xxx]. The vehicle was not repaired. The approximate failure mileage was 20,000. Parts of this document have been redacted to protect personally identifiable information pursuant to the freedom of information act (foia), 5 u.S.C. 552(b)(6).*cc
ENGINE, POWER TRAIN



2002 LEXUS ES300 with 102542. miles

Check engine light came on and car acceleration was limited. Error codes P2121 and P2128 indicated faulty "throttle position sensor" the part retails for around $100. Lexus insisted that i had to replace the complete accelerator pedal assembly with a new throttle position sensor. Lexus charged me $764 to replace both assemblies. I believe Lexus should have covered the cost of all of the cost of replacing the accelerator pedal assembly. My vehicle is a 2002 Lexus Es300.
ENGINE AND ENGINE COOLING,

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