P2135 The two throttle position sensors disagree with each other
3 owner reports and 2 manufacturer filings across 5 model years from Honda, Mercedes-Benz, Nissan.
Where P2135 shows up
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports | Parts |
|---|---|---|---|---|
| 2016 Honda Pilot | Vehicle Speed Control | — | 1 | Throttle body → |
| 2019 Mercedes-Benz C-Class | Electrical System | — | 1 | Throttle body → |
| 2021 Nissan Frontier | Electrical System | 1 | — | Throttle body → |
| 2020 Nissan Frontier | Electrical System | 1 | — | Throttle body → |
| 2017 Nissan Sentra | Electronic Stability Control | — | 1 | Throttle body → |
A model year appears here because the code is named in its record, not because every one of these vehicles sets it. Counts are mentions in the federal files, not failure rates — nobody publishes the denominator.
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What it gets filed under
What owners said
Source: NHTSA complaint databaseOwners’ own words, one per nameplate, scrubbed of anything identifying. These are unverified reports filed with NHTSA — they are what was said, not a finding that it was true.
Independent service center confirmed failure on 1/3/2026 with 6 stored fault codes: P2101, P0122, P0222, P0123, P0223, P2135
2 manufacturer filings name P2135. Start with what the maker wrote down.
A code names the test that failed, not the part. A bulletin that names it is often a diagnosis someone has already written down — quote its number at the service desk.
Manufacturer filings that name it
Source: NHTSA manufacturer communicationsService bulletins and campaigns whose filed summary names P2135.
- NTB21-080 Service bulletin2021-09-01 · Electrical System
- MIL ON WITH DTC P0223, P0507 AND/OR P2135 STORED IN THE ECM IF YOU CONFIRM The MIL is ON and one or more of the following DTCs is stored in the ECM: ï· P0223 - TP SEN 1/CIRC-B1 ï· P0507 - ISC SYSTEM ï· P2135 - TP SENSOR-B1 AND There are no drivability concerns. ACTION 1. Confirm the current ECM part number. 2. Reprogram the ECM, if applicable.
What P2135 means
Source: SAE J2012 / OBD-IIThe two throttle position sensors disagree with each other.
A stored code names the test that failed, never the part that caused it. It is the starting point of a diagnosis, not its conclusion — the same code has several possible causes and the cheap one is not always right.
Common questions about P2135
Source: NHTSA files and the OBD-II standardCan I keep driving with P2135 stored?
Nobody can answer that from the code alone, and a site that does is guessing. A steady light means a fault was logged and the car should be checked soon; a flashing light means a severe misfire — slow down and get it seen as soon as possible, because severe misfire can quickly damage the catalytic converter. The safe read of this page is the mileage and the components, not permission.
Does a code mean the car is recalled?
No. Recalls are filed by campaign and matched by VIN, and none of them are triggered by a scan tool. If you want to know whether an open recall applies to one specific vehicle, check the VIN at nhtsa.gov/recalls — that is the only source that settles it.
Why do the counts here differ from other sites?
Because these are not estimates. Every number on this page is a count of documents in NHTSA's own files: manufacturer communications that name the code in their filed summary, and owner complaints that name it in the narrative. We do not model, weight or extrapolate them.
Will clearing the code fix it?
Clearing turns the light off and erases the freeze-frame data a technician would have used to work out what happened. If the condition is still there the code returns, usually within a few drive cycles, and the diagnosis now starts from less information than before.