What is a gem module for 1999 mercury sable? And what does it control?
PCM stands for Powertrain Control Module on a Mercury Sable
On a 1999 Mercury Sable : Relay # 30 is the Powertrain Control Module ( PCM ) relay
The wiper control module is mounted on a bracket near the steering column support bracket.
On the top of firewall on passenger side of engine bay.
The coolant sensor is on top of the engine. It is between the ignition coil and the tfi module.
The standard location of the cruise control module is on the steering wheel. In 1993 some models have a side arm that houses the cruise control module.
There is no such animal as a "tachometer sending unit." The tachometer circuit is spliced into the ignition circuit and reads the actual ignition signal used by the ignition module.
The 2000 Ford Taurus body control module is located on the firewall in the engine compartment. The module will be on the passenger side, near the bottom, of the firewall.
The 1999 Mercury Sable computer module can be located behind the passenger side dashboard. The dashboard will need to be removed in order to view the computer module.
If it stalls at idle or when slowing down, it could be a fuel filter. Or it could be the ignition control module.
Replace auto lamp module.