Pinpoint Test L: Malfunction Indicator Light: Description
WARNING: This page does not describe the selected car, but rather 14 other vehicles, including the 1996 Ford RV Cutaway, 1996 Ford Pickup, 1996 Ford F-Super Duty, 1996 Ford Econoline, and 1996 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
To prevent replacement of good components, be aware that the following non-EEC areas may be at fault:
- Fuse.
- Bulb or socket.
CHECK ENGINE light is intended to alert driver of certain concerns in closed loop system. CHECK ENGINE light output is turned on when strategy detects a concern in certain input or output circuits. CHECK ENGINE light will remain on as long as the concern is present. Regulations governing this light also require that Diagnostic Trouble Codes (DTCs) be displayed by flashing of CHECK ENGINE light.
Perform this test when directed here by QUICK TEST. This PINPOINT TEST is intended to diagnose:
- STO/MIL circuit.
- Powertrain Control Module (PCM).