PCM Pin Out Chart (1996 3.9L Dodge Ram 1500 Pickup)

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1996 PCM GRAY Connector

IMPORTANT: The following pin out chart applies only to the 1996 Dodge Ram pickups with a 3.9L V6 engine.

GRAY PCM 32 Pin Connector
Pin	Wire Color	Description
C-1	DK BLU/ORG	A/C Compressor Relay
C-2	---	Not Used
C-3	DK BLU/YEL	Auto Shutdown (ASD) Relay
C-4	TAN/RED	Cruise Control Vacuum Solenoid
C-5	LT GRN/RED	Cruise Control Vent Solenoid
C-6	LT GRN/ORG	Over-Drive Indicator
C-7	PNK/BLK	Trans Temp Indicator
C-8	---	Not Used
C-9	---	Not Used
C-10	---	Not Used
C-11	YEL/RED	Empty
C-12	DK GRN/ORG	ASD Relay Sens
C-13	ORG/WHT	Trans Over-Drive Switch
C-14	---	Not Used
C-15	PNK/YEL	Battery Temp Sensor
C-16	TAN/YEL	Alternator Indicator
C-17	BLK/PNK	Check Engine Light
C-18	GRY/PNK	SRI Driver
C-19	BRN/WHT	Fuel Pump Relay
C-20	PNK	EVAP Solenoid Driver
C-21	---	Not Used
C-22	BRN	A/C Request
C-23	LT GRN	A/C Select Signal
C-24	WHT/PNK	Brake Switch Signal
C-25	---	Empty
C-26	DK BLU/WHT	Low Fuel Input
C-27	PNK/DK BLU	SCI Transmit
C-28	---	Not Used
C-29	DK GRN	SCI Receive
C-30	---	Empty
C-31	GRY/LT BLU	Tach Signal
C-32	RED/LT GRN	Cruise Control Switch Signal

Here are some very important safety precautions when testing the wires coming out of the PCM connectors.

If one or any of the wires on your Dodge Ram DO NOT match the color stated in the pin out charts, then you should not use the pin out charts in this article. Why? Because this is the clearest indication that these ARE NOT the connector pin out charts for your particular vehicle.
Never probe the front of the connector.
1. You should use a wire piercing probe and probe the wire a few inches away from the connector.
  - To see what this tool looks like: Wire Piercing Probe.
2. You should use a back probe.
Read the Disclaimer.

If this info saved the day, buy me a beer!