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P0225 is a diagnostic trouble code (DTC) for "Throttle/Pedal Position Sensor/Switch C Circuit Malfunction". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic. Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $20.00 off as a credit towards the repair. All our repairs are backed by our 12-month / 12,000-mile warranty.
Throttle/Pedal Position Sensor/Switch C Circuit Malfunction
P0225 is a generic OBD-II code which indicates that the throttle/pedal position sensor/switch C circuit has an internal failure. The sensor went out of range, causing the throttle to become unresponsive and the engine to go into failure mode.
The engine control module (ECM) detects sensor circuit voltage above or below the specified range designed for the sensor over a specified time.
Scans codes and documents the freeze frame data
Clears the codes to verify whether the concern comes back
Does a visual check of the wiring and connections to the throttle body sensor
Disconnects connection to the sensor and checks for corrosion, or problems with pin engagement
Tests for proper battery voltage to the sensor
Checks the battery and charging system for proper operation
Tests the sensor resistance and compares it to specifications
Follow these simple guidelines to prevent misdiagnosis:
Do a visual check of connections to the sensor to make sure they are making good contact to the throttle control assembly
Make sure that the battery and charging system is working properly
Check the throttle plates for blockage or contamination with oil, dirt or debris
Repairing the battery and charging system for low voltage conditions
Repairing or replacing a defective connector or wiring to the sensor if it is corroded or has connector damage
Replacing a defective throttle body control assembly
The code P0225 is for one of the multiple sensors for the throttle body control. Some vehicles use the sensor to compare voltage output with the redundant sensors to prevent throttle control issues. This code may have various drive symptoms, depending on the manufacturer's failure mode.
YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. Get a quote and book an appointment online or speak to a service advisor at 1-800-701-6230.