Possible Causes
WARNING: This page is about a different car, the 2003 Mazda B4000, 2003 Mazda B3000, and 2003 Mazda B2300. However, it is still accessible from the selected car via links, so may be relevant.
Possible causes are:
- Air inlet plugged (DTCs P0505 or P1507).
- Air inlet leakage (DTC P1507).
- Damaged IAC solenoid (DTCs P1504 or P1507).
- Damaged throttle body (DTCs P0505 or P1507).
- Damaged PCM (DTCs P0505, P1504 or P1507).
- IAC circuit open (DTCs P0505, P1504 or P1507).
- IAC circuit shorted to PWR (DTCs P0505, P1504 or P1507).
- IAC circuit shorted to GND (DTC P1504).
- VPWR circuit open (DTCs P0505, P1504 or P1507).
- VPWR to IAC solenoid open (DTCs P0505, P1504 or P1507).