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P1504 Diagnostic Trouble Code Discussion for October 2006

Idle Air Control Solenoid Circuit Malfunction


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Trouble Ticket Help Requests for DTC P1504
Help Request Posted
1998 Mercury Mystique LS 2.5L Surge, MIL Lamp on, races at idle VIN: 1MELM66LXW
P1504: idle speed error. Gentelmen, This car was brought to me for a used car inspection, at that time the only complaint was an erratic tach. I checked it out along with the rest of the car, it seemed OK, I briefly looked at the trouble tree for the tach and told the owner it probabl...
October 09, 2006
1998 Mercury Mystique LS 2.5L Surge, MIL Lamp on, races at idle VIN: 1MELM66LXW
P1504: idle speed error. Gentelmen, This car was brought to me for a used car inspection, at that time the only complaint was an erratic tach. I checked it out along with the rest of the car, it seemed OK, I briefly looked at the trouble tree for the tach and told the owner it probabl...
October 09, 2006