SpareRadar OBD-II Code Lookup

P1504

Set by the manufacturer, so it means different things on different makes. 13 makes in the table below.

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What P1504 means, by make 13 makes
  • Audi Intake Air Sys. Bypass Leak Detected
  • BMW Idle-Speed Control Valve Closing Solenoid Control Open Circuit
  • Chevrolet Theft Deterrent Fuel Enable Signal Not Correct
  • Citroen Idle Air Control Circuit Malfunction
  • Fiat Input key
  • Ford Idle Air Control Circuit Malfunction
  • Lincoln Intake Air Control Circuit malfunction
  • Mazda Idle Air Control Solenoid Circuit Intermittent
  • Mercedes-Benz Idle air control solenoid circuit intermittent fault
  • Mercury Intake Air Control Circuit malfunction
  • Peugeot Idle Air Control Circuit Malfunction
  • Volkswagen Intake Air Sys. Bypass Leak Detected
  • Volvo Intake Air Sys. Bypass Leak Detected

Each line is that manufacturer's own meaning for P1504. They are genuinely different faults, not rewordings of one, so a meaning listed against one make says nothing about the others. If your make is not listed, we do not hold it - your manufacturer's service information is the authority.

Code structure P1504
P
Powertrain
engine, transmission and emissions
1
Manufacturer-specific
Defined by the vehicle manufacturer, so the meaning varies between makes.
5
0
4
Fault index
identifies the specific fault
Powertrain Manufacturer-specific
Nearby codes in the P1 range
P1499 manufacturer-specific, 9 makes P1501 manufacturer-specific, 20 makes P1502 manufacturer-specific, 19 makes P1503 manufacturer-specific, 12 makes P1505 manufacturer-specific, 17 makes P1506 manufacturer-specific, 14 makes P1508 manufacturer-specific, 19 makes P1509 manufacturer-specific, 18 makes

Manufacturer code meanings from kierandrewett/obd (b56a07a), used under the MIT licence. Copyright (c) Kieran Drewett. SpareRadar is not affiliated with the dataset's authors.