what does it mean if my Toyota Highlander has a C1201 code

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a level surface and the ignition is off.
• Disconnect the battery negative terminal for safety.

2. Inspect and Replace Throttle Position Sensor

1. Locate the TPS:
   • The TPS is typically mounted on the throttle body. Refer to the service manual for exact location.
2. Remove the TPS:
   • Disconnect the electrical connector from the TPS.
   • Remove the screws or bolts securing the TPS to the throttle body using a socket or screwdriver.
3. Install the New TPS:
   • Position the new TPS onto the throttle body and secure it with screws or bolts.
   • Reconnect the electrical connector ensuring it clicks into place.
4. Reconnect Battery:
   • Reattach the negative battery terminal securely.

3. Clear Error Codes

• Use the OBD-II scanner to clear the C1201 code and any other stored codes.

4. Test the System

• Start the engine and let it idle.
• Test drive the vehicle to ensure proper operation of the VSC and throttle response.