Parts for your 2011 Honda Odyssey-Throttle position sensors

2011 Honda Odyssey throttle-position-sensors (TPS): what they do and how to service them

Referencing technical sources, the 2011 Honda Odyssey absolutely uses throttle-position-sensors. Honda’s Factory Service Manual for the 2011 Odyssey (Electronic Throttle Control System section) specifies dual throttle position sensors (Sensor A and Sensor B) integrated into the electronic throttle body. Related OBD-II fault codes (e.g., P0121/P0122/P0123, P0221/P0222/P0223, P2135) are documented in Honda service literature and SAE DTC listings, and Honda’s parts catalogues show the TPS as part of the throttle body assembly, not a separate, serviceable item.

On both the V6 Odyssey and the 2.4-litre Australasian models of this era, the TPS tracks the exact angle of the throttle plate so the engine control module can manage air, fuel and spark cleanly. Working alongside the accelerator pedal position sensors, the dual TPS setup provides redundancy and helps the Odyssey avoid surging, stalling or poor shift quality. If the readings from Sensor A and B don’t agree, the system drops into limp mode to protect the engine and occupants.

There’s no scheduled replacement interval for throttle-position-sensors on a 2011 Odyssey because they’re built into the throttle body and designed for long service life. However, as part of regular servicing, a few sensible checks go a long way:

• Inspect the throttle body for carbon build-up, clean the bore and plate with throttle body cleaner (don’t flood the electronics or pivot).
• Check the TPS connector for moisture or green corrosion, and ensure the harness isn’t chafed.
• Use a scan tool to view live data: TPS A/B percentage and correlation should be smooth and aligned through the pedal sweep.

If fault codes point to the TPS and correlation tests confirm it, the fix is to replace the throttle body assembly (the TPS isn’t sold separately by Honda). Fit a new gasket, torque the bolts evenly, reconnect the harness, and clear codes. Perform an idle/throttle learn procedure: fully warm the engine, switch off accessories, let it idle for a few minutes, then take a gentle drive so the ECU can relearn. Some scan tools offer a guided throttle learn that speeds this up.

Tell-tale symptoms of TPS trouble include a flashing or steady check engine light, reduced power mode, erratic idle, and jumpy throttle response. A good workshop will verify wiring integrity and grounds before condemning the throttle body, and will avoid back-probing the TPS pins to prevent damage.

Popular questions

Does a 2011 Honda Odyssey actually have a throttle-position sensor?
Yes. The 2011 Odyssey uses electronic throttle control with two throttle-position-sensors built into the throttle body. They’re not serviceable on their own, if the sensor fails testing, the complete throttle body is replaced. This design is documented in Honda’s service manual and reflected in DTCs like P0121 and P2135.

How do you reset or relearn the throttle after servicing?
After cleaning or replacing the throttle body, clear any codes, warm the engine fully, switch off all loads (A/C, lights), and let the engine idle undisturbed for 5–10 minutes. Then drive gently for a few kilometres so the ECU fine-tunes idle and throttle control. Some scan tools support a dedicated throttle/idle learn routine—handy but not always essential.

Will cleaning the throttle body fix TPS fault codes?
If the issue is sticky carbon causing the plate to hang, cleaning can help. If the codes point to electrical faults or A/B correlation errors, cleaning won’t cure it—diagnose wiring first, and if the sensors fail tests, replace the throttle body assembly.