PCM Pin Out Chart (1996-1998 4.0L Jeep Grand Cherokee)

1996-1998 PCM BLACK Connector

Black Connector PCM Pin Out Chart 1996, 1997, 1998 4.0L Jeep Grand Cherokee

The PCM has 3 connectors and are color coded (black, white, and gray). Each connector has 3 rows of slots for a total of 32 slots (terminals).

IMPORTANT: The following pin out chart applies only to the 1996, 1997, 1998 4.0L Jeep Grand Cherokee.

For other PCM pin-out charts, take a look at the following:

BLACK PCM 32 Pin Connector
Pin Wire Color Description
 A-1 --- Not Used
 A-2 ORG Ignition Power
 A-3 --- Not Used
 A-4 BLK/LT BLU Sensor Ground
 A-5 --- Not Used
 A-6 BLK/WHT Park/Neutral Position Switch (A/T Only)
 A-7 GRY/WHT Ignition Coil Driver
 A-8 RED/LT GRN Crankshaft Position (CKP) Sensor Signal
 A-9 --- Not Used
A-10 VIO/BLK Idle Air Control Motor 4
A-11 BRN/WHT Idle Air Control Motor 3
A-12 --- Not Used
A-13 --- Not Used
A-14 --- Not Used
A-15 BLK/RED Intake Air Temp (IAT) Sensor
A-16 TAN/BLK Engine Coolant Temp (ECT) Sensor
A-17 WHT/BLK 5 Volt Supply
A-18 GRY/BLK Camshaft Position (CMP) Sensor Signal
A-19 YEL/BLK Idle Air Control Motor 2
A-20 GRY/RED Idle Air Control Motor 1
A-21 --- Not Used
A-22 RED/YEL Fused B(+)
A-23 ORG/DK BLU Throttle Position Sensor (TPS) Signal
A-24 BLK/ORG Front O2 Sensor Signal
A-25 BLK/PNK Rear O2 Sensor Signal
A-26 --- Not Used
A-27 RED/WHT MAP Sensor Signal
A-28 --- Not Used
A-29 --- Not Used
A-30 --- Empty
A-31 BLK/TAN Ground
A-32 BLK/TAN Ground
PCM Pin Out Chart 1996, 1997, 1998 4.0L Jeep Grand Cherokee

Safety Precautions

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

  1. 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.
  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. You should use a back probe.
  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.