PCM Pin Out Chart (1994 3.9L Dodge Ram 1500 Pickup)

1994 3.9L V6 Ram 1500 Pickup PCM 60 Pin Connector

PCM Pin Out Chart 1994 3.9L V6 Dodge Ram 1500 Pickup

The PCM has a 60 pin connector and on the back side of the connector (wire side) are embossed a few numbers to further aid you in correctly identifying the pins (circuits).

IMPORTANT: The illustration above and pin-out table below apply only to: 1994 3.9L V6 Dodge Ram 1500 Pickup.

In Spanish You can find this tutorial in Spanish here: Pines De La Computadora De La Inyección Electrónica (1994 3.9L V6 Dodge Ram 1500 Pickup) (at: autotecnico-online.com).


1994 3.9L V6 Ram 1500 Pickup PCM 60 Pin Connector
Terminal Wire Color Description
 1 DK GRN/RED MAP Sensor Signal
 2 TAN/BLK ECT Sensor
 3 RED/WHT 12 Volts (Battery Power)
 4 BLK/LT BLU Sensor Ground
 5 --- Not Used
 6 VIO/WHT 5V Supply (MAP Sensor, TPS Sensor)
 7 ORG 8V Supply (CKP Sensor, CMP Sensor, Vehicle Speed Sensor [VSS])
 8 --- Not Used
 9 LT GRN/BLK 12 Volts (Ignition Voltage)
10 ORG/WHT Trans Over-Drive Switch Feed
11 BLK/TAN Chassis Ground
12 BLK/TAN Chassis Ground
13 LT BLU/BRN Injector #4 Driver
14 YEL/WHT Injector #3 Driver
15 TAN Injector #2 Driver
16 WHT/DK BLU Injector #1 Driver
17 --- Not Used
18 --- Not Used
19 BLK/GRY Ignition Coil Driver
20 DK GRN Voltage Regulator
21 BLK/RED Air Charge Temp Sensor
22 ORG/DK BLU Throttle Position Sensor (TPS) Signal
23 --- Not Used
24 GRY/BLK Crankshaft Position (CKP) Sensor Signal
25 PNK Datalink Transmit
26 --- Not Used
27 BRN A/C Damped Pressure Switch
28 --- Not Used
29 WHT/PNK Brake Sense
30 BLK/WHT Starter Relay
31 PNK/BLK Transmission Temperature Lamp
32 BLK/PNK Malfunction Indicator Lamp (MIL)
33 TAN/RED Vehicle Speed Control (Vacuum)
34 DK BLU/ORG A/C Compressor Relay Ground
35 GRY/YEL EGR Solenoid
36 --- Not Used
37 LT GRN/ORG Transmission Control
38 GRY Injector #5 Driver
39 GRY/RED IAC Motor
40 BRN/WHT IAC Motor
41 BLK/DK GRN Oxygen Sensor
42 VIO Transmission Temperature Sensor
43 GRY/LT BLU Tachometer Output
44 TAN/YEL Camshaft Position (CMP) Sensor Signal
45 LT GRN Data Link Receive
46 --- Not Used
47 WHT/ORG Vehicle Speed Sensor (VSS) Signal
48 BRN/RED Vehicle Speed Control (SET/COAST)
49 YEL/RED Vehicle Speed Control (IGN)
50 WHT/LT GRN Vehicle Speed Control (RESUME/ACCEL)
51 DK BLU/YEL Auto Shutdown (ASD) Relay
52 PNK/BLK EVAP Purge Solenoid
53 LT GRN/RED Vehicle Speed Control (Vent)
54 ORG/BLK Transmission Control
55 BRN Transmission Over Drive (OD) Solenoid
56 --- Not Used
57 DK GRN/ORG Auto Shutdown Relay Feed
58 BRN/DK BLU Injector #6 Driver
59 VIO/BLK IAC Motor
60 YEL/BLK IAC Motor
PCM Pin Out Chart 1994 3.9L V6 Dodge Ram Pickup

Safety Precautions

Here are some very important safety precautions when testing the wires coming out of the 60 terminal PCM connector.

  1. If one or any of the wires on your Dodge Ram pickup DO NOT match the color stated in the pin out charts, then you can conclude that it does not apply to your vehicle. If this is case, you shouldn't use it to diagnose your vehicle's problem.
  2. 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.
    2. If you don't use a wiring piercing probe, you should use a back probe on the PCM connector.
  3. You should never disconnect any of the PCM connectors without first disconnecting the battery negative (-) terminal.


I've made every effort to double and triple check the above info (and in the next couple of pages) and I've used the best sources to compile it but nothing in life is perfect.

I don't have a staff of proof readers or editors, I'm just a little guy typing this stuff up in my spare time to help and give back to the Do-It-Yourself community. So without further ado, here's my disclaimer:

© copyright Abraham Torres-Arredondo: This information is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

If you do spot errors, please let me know. You can use the contact form at the end of the article.

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