SPEEDOMETER (AEROSTAR, BRONCO, ECONOLINE, F-PICKUP)
Speedometer is inoperative; CHECK ENGINE light is illuminated and/or Speed Control is inoperative. The probable cause could be one or more of the following:
No power to Programmable Speedometer/Odometer Module
No vehicle speed support
Open ground
Inoperative Programmable Speedometer/Odometer Module
If there is no power to Programmable Speedometer/Odometer Module, check for voltage at Pins 1 and 3.
If there is no vehicle speed support check for approximately 3.5 volts AC between Pins 4 and 5 of Programmable Speedometer/Odometer Module with vehicle speed approximately 30 mph.
If there is an open ground, check for continuity to ground at Pin 2 of Programmable Speedometer/Odometer Module.
If Programmable Speedometer/Odometer Module inoperative. Check module
Programmable Speedometer/Odometer ModuleBelow glove box.
SPONSORED LINKS
Thursday, December 11th, 2008 AT 2:00 PM
