PCM Diagnostics Trouble Code (DTC) Index
WARNING: This page is about a different car, the 2004 Mercury Mountaineer and 2004 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.
PCM DIAGNOSTICS TROUBLE CODE (DTC) INDEX
| DTC | Description | Source | Action |
|---|---|---|---|
| P0442 | Small Leak Detected in EVAP System [as small 1 mm (0.040 in)] | PCM | Go To PINPOINT TEST A |
| P0455 | Major Leak or No Flow Detected | PCM | Go To PINPOINT TEST B |
| P0456 | Very Small Leak Detected in EVAP System [as small 0.5 mm (0.020 in)] | PCM | Go To PINPOINT TEST A |
| P0457 | Check for Missing or Leaking Fuel Filler Cap | PCM | Go To PINPOINT TEST A |
| P1450 | Excessive Vacuum Detected in the Fuel Tank | PCM | Go To PINPOINT TEST C . |
| - | Any Other PCM DTC | PCM | REFER to INTRODUCTION - CNG, FLEX-FUEL & GASOLINE . |