Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that the car's computer is having trouble talking to the fuel gauge. It's like when your phone can't connect to the internet.
The P1433 code indicates a communication error between the fuel level sensor and the vehicle's central computer system via the Controller Area Network (CAN).
The P1433 code is triggered when the vehicle's Engine Control Module (ECM) detects a malfunction in the communication with the secondary fuel level sensor through the CAN bus. This could be due to wiring issues, a faulty sensor, or a problem with the CAN bus itself.
• Inaccurate fuel gauge readings
• Check Engine Light on
• Possible fuel level warning
• Faulty fuel level sensor
• Wiring issues or poor connections
• Faulty CAN bus communication
CAN: Controller Area Network, a vehicle bus standard designed to allow microcontrollers and devices to communicate with each other.
ECM: Engine Control Module, the computer responsible for controlling engine functions.
• Check for any loose or damaged wiring to the fuel level sensor.
• Inspect the fuel level sensor for proper operation.
• Use a scan tool to check for additional CAN bus errors.
• Repair or replace damaged wiring.
• Replace the faulty fuel level sensor.
• Ensure proper CAN bus communication.
• OBD-II scanner
• Multimeter
• Wiring repair kit
$150 - $400
Moderate
• Ford Focus
• Chevrolet Silverado
• Toyota Camry
• Regularly check and maintain wiring connections.
• Ensure the fuel level sensor is functioning properly.
• Perform regular diagnostics to catch issues early.
Sensor Issue
• Monitor your fuel level manually until the issue is resolved.
• Avoid long trips until the fuel gauge is accurate.
Check with your vehicle manufacturer for warranty coverage on the fuel system components.
The P1433 code has been reported in various models, often related to wiring issues or sensor failures.
Moderate – While this issue may not immediately affect vehicle performance, it can lead to running out of fuel unexpectedly.
Driving with an inaccurate fuel gauge can lead to unexpected vehicle shutdowns, posing a safety risk.
• Vehicle at operating temperature
• Stable voltage supply
The fuel level sensor is typically located inside the fuel tank.
Q: Can I drive with a P1433 code?
A: Yes, but it's not recommended as you may run out of fuel without warning.
Q: How do I know if my fuel level sensor is bad?
A: If your fuel gauge is erratic or the Check Engine Light is on with a P1433 code, the sensor may be faulty.
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