Recreating the Fault
WARNING: This page is about a different car, the 2007 Mercury Mariner and 2007 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
Recreating the fault is the first step in isolating the cause of the intermittent symptom. A thorough investigation should start with the customer information worksheet located in the back of the book. If freeze frame data is available, it may help in recreating the conditions at the time of a malfunction indicator lamp (MIL) diagnostic trouble code (DTC). Listed below are some of the conditions for recreating the fault:
CONDITIONS TO RECREATE FAULT
| Engine Type Conditions | Non-Engine Type Conditions |
|---|---|
| Engine temperature | Ambient temperature |
| Engine RPM | Moisture conditions |
| Engine load | Road conditions (smooth-bumpy) |
| Engine idle/accel/decel |