What is code P2121?

What is code P2121?

OBD-II code P2121 indicates a problem with the accelerator pedal position, or APP, sensor. The accelerator pedal position sensor is located on the accelerator pedal bracket. This pedal position sensor has two sensor elements and two signal outputs which are VPA & VPA2.

How to find out if your car has p2121 code?

Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins. The cost to diagnose the P2121 code is 1.0 hour of labor. The auto repair’s diagnosis time and labor rates vary by location, vehicle’s make and model, and even your engine type.

What happens when a Lexus trouble code is not cleared?

If the diagnostic trouble code is not cleared, it will be retained by the ECU and appear along with a new DTC in future trouble codes. If it is necessary to work on engine components requiring removal of the battery ground cable, confirm no DTC’s are stored.

Where to find OBD1 code on Lexus SC300?

Transmission must be in Neutral position. All accessories must be turned Off. On pre-OBD II models, turn ignition to On, then use a jumper wire to connect terminals TE1 and El of the data link connector, located under the left hand side of the instrument panel. Codes are indicated by the number of flashes of the check engine warning light.

Where does the p2121 code come from on a car?

On post-2008 vehicles, a code such as P2121 may be traced to the CAN bus. The CAN bus is a conglomeration of sensors, wiring harnesses and connectors that enables information to be shared between modules, and it controls almost every electrical function of the vehicle.

If the diagnostic trouble code is not cleared, it will be retained by the ECU and appear along with a new DTC in future trouble codes. If it is necessary to work on engine components requiring removal of the battery ground cable, confirm no DTC’s are stored.

Transmission must be in Neutral position. All accessories must be turned Off. On pre-OBD II models, turn ignition to On, then use a jumper wire to connect terminals TE1 and El of the data link connector, located under the left hand side of the instrument panel. Codes are indicated by the number of flashes of the check engine warning light.

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