By BAT Team (Contact Me)
Last Updated 2017-01-17
A site with free advice from mechanics.

We recommend Torque Pro

Manufacturer Specific Definitions for P1504

MakeFault Location
AudiIntake system - leak detected
BmwECM self-test- mass air flow (MAF) sensor monitoring fault
BuickVehicle Speed Output Circuit
CadillacVehicle Speed Output Circuit
ChevroletEngine control module (ECM). vehicle speed sensor (VSS) output signal -circuit malfunction
CitroenIdle Air Control Circuit Malfunction
DaewooVehicle speed sensor (VSS), AT- no signal
FordIntake Air Control Circuit Malfunction
GmcEngine control module (ECM), vehicle speed sensor (VSS) output signal -circuit malfunction
GmVehicle Speed Output Circuit
HyundaiCruise Control Malfunction-Cancel
KenworthP1504 - Vehicle speed pulse width modulated duty cycle
KiaCruise control master switch – signal malfunction
Land RoverIdle air control (lAC)
LincolnIdle air control (lAC) valve -circuit malfunction
MazdaIdle air control (lAC) system – circuit malfunction
MercuryIdle air control (lAC) valve -circuit malfunction
MiniIdle Speed Control Valve Closing Solenoid Control Open Circuit
PeterbiltP1504 - Vehicle speed pulse width modulated duty cycle
PeugeotIdle Air Control Circuit Malfunction
SubaruVehicle Speed Sensor CAN Malfunction
VolkswagenIntake system - leak detected

Help Us Help You

We have not gotten around to publishing a technical guide specifically for P1504 yet.

To escalate the priority of this guide in our production queue, please let us know the specifics of your vehicle (make, model, year, miles, and engine) and make a $9.99 donation via the payment button below. We will follow up immediately with additional questions as needed and email you a detailed guide for your vehicle.

Please help support us and let us help you.