Which PCM pins control the cooling fans?

Pin 16 is High Speed Fan Control (circuit 196, Y/BK wire), pin 17 is Low Speed Fan Control (circuit 321, W/GN wire), and there is also a Low Fan Control function listed at pin 18.

Which pins operate the VRIS solenoids?

Pin 20 (circuit 713, GY wire) is Variable Resonance Induction System (VRIS) Solenoid #1 and pin 21 (circuit 714, BL/R wire) is VRIS Solenoid #2.

What do the * and ** symbols mean in the diagram?

A single asterisk (*) marks circuits used with the manual transaxle (e.g., circuit 716 LG/BK), and a double asterisk (**) marks circuits used with the automatic transaxle (e.g., circuit 18 GN).

What circuit and wire color connect to the A/C High Pressure Switch?

Pin 22, circuit 185, with a PK/BK (pink/black) wire, connects to the A/C High Pressure Switch.

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Ford Probe 2.5L PCM Connector C246 Pinout - Wire Colors & Circuit Functions

PCM connector C246 pinout with circuit-function table for 2.5L powertrain control module

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Powertrain control module connector C246 pinout with color-coded pins and circuit-function reference table.

AI caption August 2011 · Photo 117 of 676

This document is a partial page from a Ford wiring reference showing connector C246, the Powertrain Control Module (PCM) connector for the 2.5L engine (Ford Probe application per the uploader's album). The top portion is a pinout diagram of the 28-pin PCM connector with circuit numbers and wire color codes labeled for many terminals, including 173 (BL/GN), 197 (BR/LG), 187 (GN/BK), 195 (PK/Y), 33 (R/Y), 746 (BL), 772 (GN/BK), 18 (GN, automatic transaxle only), 716 (LG/BK, manual transaxle only), 174 (BL/O), 369 (GN/R), 272 (GN), 196 (Y/BK), 321 (W/GN), 663 (P), 713 (GY), 714 (BL/R), 185 (PK/BK), 12 (BK/R), 261 (W), and 704 (LG). A legend distinguishes manual (*) versus automatic (**) transaxle circuits. Below the diagram, a circuit function table lists pin assignments such as pin 16 High Speed Fan Control (196 Y/BK), pin 17 Low Speed Fan Control (321 W/GN), pin 20 VRIS Solenoid #1 (713 GY), pin 21 VRIS Solenoid #2 (714 BL/R), and pin 22 A/C High Pressure Switch (185 PK/BK). The table is cut off at the bottom of the scan, ending mid-way through the Transmission Range (TR) Sensor row.

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Frequently asked questions

What connector is shown in this diagram?: Connector C246, the Powertrain Control Module (PCM) connector for the 2.5L engine.
Which PCM pins control the cooling fans?: Pin 16 is High Speed Fan Control (circuit 196, Y/BK wire), pin 17 is Low Speed Fan Control (circuit 321, W/GN wire), and there is also a Low Fan Control function listed at pin 18.
Which pins operate the VRIS solenoids?: Pin 20 (circuit 713, GY wire) is Variable Resonance Induction System (VRIS) Solenoid #1 and pin 21 (circuit 714, BL/R wire) is VRIS Solenoid #2.
What do the * and ** symbols mean in the diagram?: A single asterisk (*) marks circuits used with the manual transaxle (e.g., circuit 716 LG/BK), and a double asterisk (**) marks circuits used with the automatic transaxle (e.g., circuit 18 GN).
What circuit and wire color connect to the A/C High Pressure Switch?: Pin 22, circuit 185, with a PK/BK (pink/black) wire, connects to the A/C High Pressure Switch.