1993, 1994, 1995 Jeep Grand Cherokee 60 Pin Connector (4.0L)
The fuel injection computer (known in tech speak as the PCM = Powertrain Control Module) is located on the firewall (passenger side) of your Jeep Grand Cherokee.
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: 1993, 1994, 1995 Jeep Grand Cherokee with 4.0L engine.
You can find the 1996-1998 4.0L Jeep Grand Cherokee PCM connector pin-out charts here:
| 1993, 1994, 1995 4.0L Grand Cherokee 60 Pin Connector | ||
|---|---|---|
| Pin | Wire Color | Description |
| 1 | RED/WHT | MAP Sensor Signal |
| 2 | TAN/BLK | ECT Sensor |
| 3 | PNK/BLK RED | Battery Power (1993 Only) Battery Power (1994, 1995 Only) |
| 4 | BLK/LT BLU | Sensor Ground |
| 5 | BLK/TAN | Ground |
| 6 | VIO/WHT | 5V Sensor Supply |
| 7 | WHT/BLK | 8V Sensor Supply |
| 8 | --- | Not Used |
| 9 | LT BLU/RED | Ignition Voltage |
| 10 | --- | Not Used |
| 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 | GRY/WHT | Ignition Coil Driver |
| 20 | DK GRN | GEN Field Driver (Voltage Regulator) |
| 21 | BLK/RED | Intake Air Temp (IAT) Sensor |
| 22 | ORG/DK BLU | Throttle Position Sensor (TPS) Signal |
| 23 | --- | Not Used |
| 24 | RED/LT GRN | Crank Sensor Signal |
| 25 | BLK | Datalink Transmit |
| 26 | VIO/BRN | CCD (+) |
| 27 | DK BLU/ORG | A/C Low Pressure Switch |
| 28 | LT GRN | A/C Select Input |
| 29 | BRN | Brake Switch Input |
| 30 | BLK/WHT | Park/Neutral (A/T Only) |
| 31 | --- | Not Used |
| 32 | BLK/PNK | Check Engine Light |
| 33 | TAN/RED | Cruise Control (Vacuum) |
| 34 | DK BLU/RED | A/C Compressor Relay Ground |
| 35 | --- | Not Used |
| 36 | --- | Not Used |
| 37 | --- | Not Used |
| 38 | GRY | Injector #5 Driver |
| 39 | YEL/BLK | IAC Motor “4” |
| 40 | BRN/WHT | IAC Motor “2” |
| 41 | BLK/ORG | Oxygen Sensor |
| 42 | --- | Not Used |
| 43 | GRY/LT BLU | Tachometer Output |
| 44 | GRY/BLK | Camshaft Position Sensor Signal |
| 45 | BLK/YEL | Data Link Receive |
| 46 | WHT/GRY | CCD (-) |
| 47 | WHT/ORG | Vehicle Speed Sensor (VSS) Signal |
| 48 | BRN/RED | Cruise Control (SET/COAST) |
| 49 | YEL/RED | Cruise Control (ON/OFF) |
| 50 | WHT/LT GRN | Cruise Control (RESUME/ACCEL) |
| 51 | PNK | Fuel Pump and Auto Shutdown (ASD) Relay Control |
| 52 | --- PNK/BLK | Not Used (1993, 1994 Only) Evap/Purge Solenoid Control (1995 Only) |
| 53 | LT GRN/RED | Cruise Control (Vent) |
| 54 | ORG/BLK | Upshift Indicator (M/T) |
| 55 | --- | Not Used |
| 56 | GRY/PNK --- | Maintenance Indicator (1993 Only) Not Used (1994, 1995 Only) |
| 57 | DK GRN/BLK | Battery Voltage Sense (ASD Relay) |
| 58 | BRN/YEL | Injector #6 Driver |
| 59 | GRY/RED | IAC Motor “1” |
| 60 | VIO/BLK | IAC Motor “3” |
Safety Precautions
Here are some very important safety precautions when testing the wires coming out of the 60 pin PCM connector.
- If one or any of the wires on your Jeep Grand Cherokee 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 Ram pickup.
- Never probe the front of the connector.
- 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.
- You should use a back probe.
- You should use a wire piercing probe and probe the wire a few inches away from the connector.
- You should never disconnect any of the PCM connectors without first disconnecting the battery negative (-) terminal.
Disclaimer
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.
If this info saved the day, buy me a beer!
