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P0227 is a diagnostic trouble code (DTC) for "Throttle/Pedal Position Sensor/Switch C Circuit Low Input". 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 Low Input
P0227 is a generic OBD-II code indicating that the throttle/pedal position sensor/switch C circuit has a low input problem causing the sensor input to the engine control module (ECM) to be lower than the expected voltage input compared to the redundant throttle position sensor A .
Scans codes and documents the freeze frame data in order to verify the problem
Clears the engine and ETC codes to verify whether the concern comes back
Does a visual check of the wiring and connections to the throttle body sensors to see if they are broken or cut in any way
Disconnects connection to the sensors and checks for corrosion or problems with pin engagement
Checks scan data to see if sensor signal voltage is open, and follows pinpoint testing steps to find the open circuit
Checks and verifies the sensor resistance, and compares it to vehicle 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
Look for any problems with burnt or cut wiring to the sensor, or corrosion in the connections.
Repairing or replacing a defective connector or wiring to the sensor if it is corroded or has connector damage
Repairing cuts or shorts in the wiring to the sensor
Replacing the throttle body control assembly if defective
Replacing or reprogramming the ECM if directed by the pinpoint tests
The code P0227 is triggered when the signal getting to the ECM is lower than specified. This can be due to corrosion or loose connections at the sensor. Cleaning the connector and using a dielectric compound to help stop any corrosion from returning is recommended.
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.