What connector is shown in this diagram?

Connector C191, the Powertrain Control Module (PCM) connector, drawn as a 104-pin connector with pins numbered 1 through 104.

Which PCM pins are power grounds?

Pins 3, 23, and 24 are Power Ground on circuit 570 (BK/W), and pin 25 is Case Ground on circuit 57 (BK).

Where do the Crankshaft Position (CKP) sensor wires go on the PCM?

Pin 21 is CKP Sensor (+) on circuit 350 (GY), and pin 22 is CKP Sensor (−) on circuit 349 (DB).

Which pins are the Data Link Connector (DLC) circuits?

Pin 13 is DLC on circuit 107 (P), pin 15 is DLC Bus (−) on circuit 915 (PK/LB), and pin 16 is DLC Bus (+) on circuit 914 (T/O).

What pins control the transmission shift solenoids?

Shift Solenoid #1 is pin 6, circuit 237 (O/Y); Shift Solenoid #2 is pin 11, circuit 315 (P/O); Shift Solenoid #3 is pin 20, circuit 971 (PK/BK).

Home/ Registry/ Ford/ Taurus/ 1996-1999/ “SHO”/ Photo supermotors.net/registry/media/416155

1998 Ford Taurus PCM Connector C191 Pinout Diagram - Pins 1-34 Wire Colors

Ford PCM connector C191 pinout chart pins 1-34: COP coils, CKP sensor, shift solenoids, DLC

‹ ›

Powertrain Control Module connector C191 pinout (pins 1-34) with circuit numbers and colors: COP #1/#3/#6, CKP sensor +/-, shift solenoids 1-3, fuel pump sender, DLC bus +/-.

AI caption August 2006 · Photo 6 of 10

This document is a pinout reference sheet for connector C191, the Powertrain Control Module (PCM) connector, uploaded to the gallery of a 1998 Ford Taurus. The top of the page shows a diagram of the 104-pin PCM connector with all pin positions numbered (1–104) in four rows, with certain positions shaded to indicate unused or special cavities. Below the diagram is a table listing pins 1 through 34 with their circuit numbers, wire color codes, and circuit functions. Circuits shown include Coil On Plug (COP) drivers #1, #3, and #6; Malfunction Indicator Lamp (MIL) control; Power Grounds (circuit 570 BK/W); the EAM Solid State Relay; Shift Solenoids #1, #2, and #3; Intake Manifold Runner Control (IMRC); Fuel Pump/Fuel Gauge Sender; Transmission Indicator Lamp (TCIL); Data Link Connector (DLC) lines including Bus (+) and Bus (−); Crankshaft Position (CKP) Sensor (+) and (−); Case Ground; Low Speed Cooling Fan Relay Control; Transmission Control Switch; Power Steering Pressure Switch Input; Knock Sensor #2; and VSS (−). A reader can identify which wire and color feeds each PCM function for diagnostic and wiring work. This appears to be page 1 of a multi-page set (companion file PCM2.gif covers additional pins).

Is this accurate? Sign in to help verify it.

Frequently asked questions

What connector is shown in this diagram?: Connector C191, the Powertrain Control Module (PCM) connector, drawn as a 104-pin connector with pins numbered 1 through 104.
Which PCM pins are power grounds?: Pins 3, 23, and 24 are Power Ground on circuit 570 (BK/W), and pin 25 is Case Ground on circuit 57 (BK).
Where do the Crankshaft Position (CKP) sensor wires go on the PCM?: Pin 21 is CKP Sensor (+) on circuit 350 (GY), and pin 22 is CKP Sensor (−) on circuit 349 (DB).
Which pins are the Data Link Connector (DLC) circuits?: Pin 13 is DLC on circuit 107 (P), pin 15 is DLC Bus (−) on circuit 915 (PK/LB), and pin 16 is DLC Bus (+) on circuit 914 (T/O).
What pins control the transmission shift solenoids?: Shift Solenoid #1 is pin 6, circuit 237 (O/Y); Shift Solenoid #2 is pin 11, circuit 315 (P/O); Shift Solenoid #3 is pin 20, circuit 971 (PK/BK).