Error code P1500 is displayed and the check engine light is on - what does this mean?
The DTC P1500 is recognized by the OBD system when there is a problem with the fuel pump control or fuel pressure system. This manufacturer-specific fault code mainly occurs in Honda and Acura vehicles and indicates a fault in the fuel supply system.
What can cause this fault code?
- Defective fuel pump
- Damaged wiring to the fuel pump
- Defective fuel pump relay
- Loose or corroded plug connections
- Faulty fuel pressure regulating valve
- Clogged fuel filter
- Defective fuel pump control unit
- Low fuel level in the tank
- Damaged fuel pressure sensor
What symptoms occur in parallel with fault code P1500?
- Starting problems: The vehicle is difficult or impossible to start
- Engine misfires: Irregular engine running and jerky driving
- Loss of power: Reduced engine power during acceleration
- Engine stalling: Engine stalls while driving
- Smell of fuel: Smell of gasoline in or around the vehicle
- Unsteady idling: Engine runs out of round at idling speed
How can the P1500 error code problem be rectified?
- Repairing the P1500 code requires a systematic approach to identify the exact cause.
- Replace the fuel pump if it is defective or does not build up sufficient pressure
- Check fuel pump relay and replace if necessary to ensure proper power supply
- Check wiring to fuel pump for damage, corrosion or loose connections and repair
- Replace the fuel filter if it is clogged and obstructing the fuel flow
- Test the fuel pressure regulating valve and replace if it is not working properly
- Calibrate or replace fuel pressure sensor if incorrect values are being transmitted
- Diagnose fuel pump control unit and replace if defective
FAQ - Frequently asked questions about DTC P1500
Can I continue driving with error code P1500?
It is not recommended to continue driving with code P1500, as this can lead to engine damage or complete failure of the fuel supply. Visit a workshop as soon as possible.
How much does it cost to repair error code P1500?
Depending on the cause, the repair costs vary between €150 (relay replacement) and €800 (fuel pump replacement). A precise diagnosis is required for a cost estimate.
Is error code P1500 the same for all vehicle brands?
No, P1500 is a manufacturer-specific code that is mainly used by Honda and Acura. Other manufacturers use different codes for similar problems.
Can I repair the error code P1500 myself?
Simple checks such as relay replacement or fuse testing are possible, but work on the fuel system requires specialist knowledge and should be carried out by a workshop.
How long does it take to diagnose error code P1500?
A professional diagnosis usually takes 1-2 hours, depending on the complexity of the problem and the accessibility of the components.
Will the error code P1500 return after the repair?
If the root cause has been repaired correctly, the code should not recur. If it does recur, it is possible that not all affected components have been repaired.