170-Pin PCM

WARNING: This page does not describe the selected car, but rather 31 other vehicles, including the 2008 Mercury Sable, 2008 Mercury Mountaineer, 2008 Mercury Milan, 2008 Mercury Mariner, and 2008 Mercury Grand Marquis. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying 170-Pin PCM Connectors/Terminals

Courtesy of FORD MOTOR CO.

TABLE 1 - 170-PIN PCM POWER AND GROUNDS

Function	Description	Connector/Pin
VPWR	Voltage input to module	B35, B36
PWRGND	Power ground	B47, B48, B49, B50
CSEGND	Case ground	B10
SIGRTN	Signal return	B41, E58, T41
VREF	5.0-volt reference	B40, E57
KAPWR	Keep alive power	B45