Mercury Villager 2000-2002

Pin Voltage Table Explanation


In this handbook, a Pin Voltage Table is a term used to describe a table that identifies PCM and Breakout Box (BOB) pins, wire colors of the PCM circuits and "known good" values for devices that connect to the PCM. These tables include the following information:

Signals from various sensors (ECT, IAT, MAP, TOT, TP, VAF)
Signals from various switches (BOO, CES, IDL, NDS, PSP)
Signals from oxygen sensors (O2S-11, HO2S-11, HO2S-12)
Signals from output devices (CANP, EVR, IAC, INJ, TCC)
Power & ground signals (KAPWR, PWR GND, VPWR, VREF)

Acronyms shown above are listed in the Glossary in this section.

Information contained within the Pin Voltage Tables can be used to:

Test circuits for open, short to power or short to ground faults
Check the operation of a component before or after a repair
Check the operation of a component or system by viewing signals on PCM input/output circuits with a DVOM or Lab Scope