System Tests: Notes
WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2003 Ford Pickup, 2003 Ford F550 Super Duty, 2003 Ford F450 Super Duty, 2003 Ford Excursion, and 2003 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
When battery is disconnected, vehicle computer and memory systems may lose memory data. Driveability problems may exist until computer systems have completed a relearn cycle. See COMPUTER RELEARN PROCEDURES
article in GENERAL INFORMATION before disconnecting battery.
SYMPTOM INDEX
| Symptom | Perform Test |
|---|---|
| Battery Is Discharged Or Voltage Is Low | A |
| Warning Indicator Is On With Engine Running (System Voltage Does Not Increase) | B |
| System Overcharges (Battery Voltage Is Greater Than 15 Volts) | C |
| Warning Indicator Is On With Engine Running & System Voltage Increases | D |
| Warning Indicator Is Off With Ignition Switch In RUN Position & Engine Off | E |
| Warning Indicator Flickers Or Is Intermittent | F |
| Generator Noisy | G |
| Radio Interference | H |