APPLIES TO: This fuel pump relay circuit wiring diagram applies to the following vehicles:
- 1993, 1994, 1995 4.0L Jeep Grand Cherokee.
The oxygen sensor heater element gets battery power from the fuel pump relay (in the power distribution center)
The oxygen (O2) sensor shares Ground with several other sensors thru' the BLK/LT BLU wire.
PCM connector pin 4 is the source of the Ground that's fed thru' the BLK/LT BLU wire.
You can find the front and rear oxygen sensor wiring diagrams for the 1996-1998 4.0L Grand Cherokee here:
- Front O2 Sensor Circuit Wiring Diagram (1996-1998 4.0L Jeep Grand Cherokee).
- Rear O2 Sensor Circuit Wiring Diagram (1996-1998 4.0L Jeep Grand Cherokee).
RELATED WIRING DIAGRAMS:
- Auto Shut Down (ASD) Relay Wiring Diagram (1993-1995 4.0L Jeep Grand Cherokee).
- CMP Sensor Wiring Diagram (1993-1995 4.0L Jeep Grand Cherokee).
- CKP Sensor Wiring Diagram (1993-1995 4.0L Jeep Grand Cherokee).
- Ignition System Wiring Diagram (1993-1995 4.0L Jeep Grand Cherokee).
- Fuel Injector Circuit Diagram (1993-1995 4.0L Jeep Grand Cherokee).
Where To Buy The Oxygen Sensor And Save
The best place to comparison shop and get an idea of how much your Grand Cherokee's oxygen (O2) sensor cost (and how much you can save) is here:
17%
Not sure if the above oxygen (O2) sensor fits your particular Jeep Grand Cherokee? Don't worry, once you get to the site, they'll make sure it fits by asking you the particulars of your vehicle. If it doesn't fit, they'll find you the right one.
More Jeep 4.0L Wiring Diagrams And Diagnostic Test Tutorials
You can find a complete list of wiring diagrams and diagnostic test tutorials here:
Here's a sample of the tutorials you'll find there:
- How To Test Trouble Code P0135 (1996-2000 Jeep 4.0L).
- How To Test The MAP Sensor (1997-2003 Jeep 4.0L).
- How To Do A Cylinder Balance Test (Jeep 4.0L).
- Jeep PWM Fan Relay Test Troubleshooting An Overheating Condition.
- How To Test The Crankshaft Position Sensor (1994-1996 4.0L Jeep).
If this info saved the day, buy me a beer!
