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Ford PCM C202 Connector Pinout (Pins 35-90) - Circuit & Wire Color Chart

PCM pin-by-pin circuit and function table listing wire colors and signals
PCM pin-by-pin circuit and function table listing wire colors and signalsOriginal file
PCM pin-by-pin circuit and function table listing wire colors and signals

Continuation table of PCM connector pins listing circuit numbers, wire colors and functions such as injector and sensor controls.

Part of 1987-1991 Ford F-250 Wiring Diagrams

AI caption · Photo 78 of 326

This document is a connector pinout table (part 2 of the C202 powertrain control module connector, per the filename C202-b.gif) covering pins 35 through 90. For each pin it lists the circuit number, wire color code, and circuit function. Notable circuits include Heated Oxygen Sensor inputs (#1, #2 catalyst monitor, #4), Mass Air Flow sensor input/return, Transmission Fluid Temperature, Engine Coolant Temperature, Intake Air Temperature, Fuel Pump Monitor, EGR Vacuum Regulator and EGR Valve Position, Vehicle Speed Sensor, Fuel Tank Pressure Transducer, Transmission Range sensor, EVAP Canister Purge Valve, Wide Open Throttle A/C Cutoff relay, fuel injector controls (#1, #3, #5, #7), ignition coils #2 and #3, power grounds (circuit 570 BK/W), Keep Alive Power (B+), VPWR, Fuel Pump Relay Control, Electronic Pressure Control solenoid, Idle Air Control valve, Output Shaft Speed Sensor, Camshaft Position sensor, Throttle Position sensor, and Reference Voltage. Several pins (42, 44-46, 49, 50, 53, 57, 59, 65, 66, 68, 70, 82, 86) are marked NOT USED. A reader can use this table to identify which wire color and circuit number connects to each PCM pin when diagnosing engine and transmission electrical circuits.

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Frequently asked questions

What wire color is the Throttle Position (TP) Sensor input on this connector?
Pin 89, circuit 355, gray/white (GY/W).
Which pins are power grounds?
Pins 51, 76, and 77, all circuit 570 (BK/W), are listed as Power Ground.
Which pin carries Keep Alive Power (B+)?
Pin 55, circuit 37, yellow (Y) wire.
Where are the fuel injector control circuits on this connector?
Pin 72 = Injector #7 (561 T/R), pin 73 = Injector #5 (559 T/BK), pin 74 = Injector #3 (557 BR/Y), pin 75 = Injector #1 (555 T).
Which pins are not used?
Pins 42, 44, 45, 46, 49, 50, 53, 57, 59, 65, 66, 68, 70, 82, and 86 are listed as NOT USED.

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