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:
- VPWR circuit open.
- EVAP Canister Purge Valve (CPV) circuit shorted to ground.
- Damaged EVAP CPV.
- EVAP CPV circuit open.
- EVAP CPV circuit shorted to VPWR.
- Damaged PCM.