Guide To P0228 OBD Error Code Solutions

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The P0228 trouble code can be defined as throttle/pedal position sensor/switch C circuit high input.

This diagnostic fault code is a generic powertrain code, which means that it would apply to the OBD-II equipped vehicles. The specific repair steps can vary as it depends upon the vehicle make and model. This code would indicate that the powertrain control module has detected a throttle pedal position sensor switch C circuit voltage reading that is abnormal.

It is a generic OBD-II code which would indicate that the throttle/pedal position sensor/switch C circuit has a high input problem which is causing the sensor input to the engine control module to be higher than the expected voltage input as compared to the redundant throttle position A, or the above specified range.

What causes this problem with the Throttle/Pedal Position Sensor/Switch C Circuit?

• Issue of damaged, short circuited, or corroded wiring and connectors
• Defects in the TPS or pedal sensors
• The TPS sensors might be mal-adjusted
• Mechanical wear in the TPS sensor or throttle body
• Carbon deposits in the throttle body that impede the movement of the throttle plate
• The powertrain control module might start failing

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2. Pedal Sensors - The broken Pedal Sensors can cause a lot of issues. It would be nice if you get it replaced on time.
3. Powertrain Control Module - Everything is fine with the Pedal Sensors and still OBD code P0228 flashing? Then there is definitely some fault with the Powertrain Control Module. Get it checked and replace if needed.
4. Engine Control Module - Engine Control Module is an important car part which should never be neglected. May be there is some fault in it due to which P0228 code may start flashing.

We care for our customers and that’s why we can totally understand your problem. That’s the reason why we have listed out some major symptoms behind the flashing up of OBD Code P0228. They are mentioned here as follows:

Common Symptoms

• An illumination in the check engine light and electronic throttle control light
• The engine control module might go into failure limp home mode
• The throttle might shut completely during stops to prevent excessive RPM’s
• The throttle can set to a fixed position during acceleration to limit throttle opening
• Problem of uneven idle or jerking during braking, due to the closed throttle position
• Limited acceleration due to very poor throttle response, or no response at all, during acceleration
• The speed of the vehicle can be limited to 32 mph or less
• The cruise control might be disabled

We have listed out some ways which would help you to correct the OBD P0228

• If there is an issue of shorted wiring to the sensor, then it should be repaired or replaced
• Replace a defective throttle body control assembly if it is internally shorted
• The battery is disconnected. Any access or trim panels are removed for access to the module
• The engine control module connections should be carefully disconnected and the module should then be removed. The new module should be installed and secured. The electrical connections are then connected
• Reconnect the battery and a charger are connected to maintain battery charge if needed. Any removed access or trim panels are installed
• The engine control module is programmed to work with the vehicle for operation with an approved scan tool or methods
• Disconnect the charger and the vehicle is road tested for proper operation

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Here are some steps which you should follow in order to diagnose this fault code:

The first and foremost thing which you should do is to scan the codes and document the freeze frame data. Then you must clear the codes to check whether the concern comes back

Visually check of the wiring and connections to the throttle body sensor. Disconnect connection to the sensor and check for corrosion, or problems with pin engagement. Carefully test for proper battery voltage to the sensor

The battery and charging system for proper operation should then be checked. Test the sensor resistance and compare it to specifications

Common Mistakes When Diagnosing The P0228 Code

• The wiring to the sensor should be visually inspected to make sure they are not shorted in any way
• You can always look for any problems with burnt or cut wiring to the sensor, or corrosion in the connections