Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means there's a problem with the part of the car that controls how much fuel goes to the engine. It's like when a faucet is stuck and too much water is coming out.
The P10C3 code indicates that the voltage in the fuel volume regulator safety relay control circuit is higher than expected.
The fuel volume regulator safety relay is responsible for controlling the amount of fuel delivered to the engine. When the control circuit's voltage is too high, it can indicate a malfunction in the relay or the wiring, which can affect the fuel delivery system.
• Check Engine Light is on
• Poor fuel economy
• Engine performance issues
• Faulty fuel volume regulator safety relay
• Wiring issues or short circuit in the control circuit
• Defective engine control module (ECM)
Relay: An electrical switch that opens and closes under the control of another electrical circuit.
ECM: Engine Control Module, the computer that controls engine functions.
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for damage or corrosion.
• Test the fuel volume regulator safety relay for proper operation.
• Replace the faulty fuel volume regulator safety relay.
• Repair or replace damaged wiring or connectors.
• Reprogram or replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $500
Moderate
• Vehicle 1
• Vehicle 2
• Vehicle 3
• Regular maintenance checks on the fuel system.
• Ensure wiring and connectors are in good condition.
• Use quality fuel to prevent system clogging.
Engine Performance
• Do not ignore the Check Engine Light; get it diagnosed.
• Regularly service your vehicle to prevent such issues.
Check with your vehicle manufacturer for warranty coverage on engine components.
This code has been associated with vehicles experiencing fuel delivery issues, often due to electrical faults.
Moderate – Should be addressed soon to prevent further engine performance issues.
Ignoring this issue may lead to decreased vehicle performance and increased emissions.
• Engine running
• Vehicle at operating temperature
The fuel volume regulator safety relay is typically located in the engine bay, near the fuel system components.
Q: What happens if I ignore the P10C3 code?
A: Ignoring this code can lead to poor engine performance and increased fuel consumption.
Q: Can I drive my car with the P10C3 code?
A: It's possible, but not recommended, as it may lead to further engine issues.
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