'01 Cherokee o2 sensor/engine wiring diagram?
05-03-2013, 09:19 AM
#1
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Year: 2001
Model: Cherokee
Engine: 4.0
'01 Cherokee o2 sensor/engine wiring diagram?
Does anyone here have a diagram of the '01 engine wiring harness where the o2 sensor wires run into the harness? I've got a P0161 code for bank 2, sensor 2 and I've got a new o2 to replace it, but I'd also like to check out all the wiring leading up to the harness to make sure that is all ok as well.
05-03-2013, 12:54 PM
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Year: 2001
Model: Cherokee
Engine: 4.0
05-03-2013, 07:28 PM
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Year: 1999
Model: Cherokee
Engine: 4.0
Here's some diagrams of the 2000 2001 O2S circuit and the O2S connector pinouts.
These diagrams came from a 2000 FMS so it refers to Calfornia O2S circuits, whereas the 2001 would not make this reference (I don't have access to 2K1 Diagrams). These diagrams will pertain to your 2K1.
These diagrams came from a 2000 FMS so it refers to Calfornia O2S circuits, whereas the 2001 would not make this reference (I don't have access to 2K1 Diagrams). These diagrams will pertain to your 2K1.
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Sons xj (03-23-2020)
03-02-2014, 11:08 PM
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Year: 1990
Model: Cherokee
Engine: 4.0
i know im necroing yet another thread, but this is exactly what I need! any chance you have a diagram like this for an 04 grand with the 4.0 CCKen? the harness on one of my downstream sensors melted for some reason and the last diagram you posted would really help me out to wire everything back up. hopefully you are still active on here!
03-03-2014, 07:15 AM
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Year: 1999
Model: Cherokee
Engine: 4.0
i know im necroing yet another thread, but this is exactly what I need! any chance you have a diagram like this for an 04 grand with the 4.0 CCKen? the harness on one of my downstream sensors melted for some reason and the last diagram you posted would really help me out to wire everything back up. hopefully you are still active on here!
See if the XJ Cherokee diagrams above pertain to the rest of your GC O2S wiring, and if so, use them to repair your damaged wiring.
Edit: I think most, if not all, Oxygen Sensor wiring (wiring from the O2S) is the same. The two White wires are for the O2S heater, they are not polarity sensitive. The Gray wire goes to the PCM as the ground wire. The Black wire goes to the PCM as the O2S signal wire.
Last edited by CCKen; 03-03-2014 at 07:52 AM.
07-29-2017, 12:50 AM
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Model: Cherokee
O2 Sensor extension
I don't have Grand Cherokee diagrams. Sorry.
See if the XJ Cherokee diagrams above pertain to the rest of your GC O2S wiring, and if so, use them to repair your damaged wiring.
Edit: I think most, if not all, Oxygen Sensor wiring (wiring from the O2S) is the same. The two White wires are for the O2S heater, they are not polarity sensitive. The Gray wire goes to the PCM as the ground wire. The Black wire goes to the PCM as the O2S signal wire.
See if the XJ Cherokee diagrams above pertain to the rest of your GC O2S wiring, and if so, use them to repair your damaged wiring.
Edit: I think most, if not all, Oxygen Sensor wiring (wiring from the O2S) is the same. The two White wires are for the O2S heater, they are not polarity sensitive. The Gray wire goes to the PCM as the ground wire. The Black wire goes to the PCM as the O2S signal wire.
Has anyone ever wired in longer wires between the o2 sensor itself and the connector? I swapped my 2000 4.0 with a 1998 4.0 and had to use the 1998 head pipe which has no pre-cat o2's and my 2000 had 2. I'm going to weld in two bungs to install the pre-cat o2's
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07-29-2017, 12:50 AM
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Model: Cherokee
O2 Sensor extension
I don't have Grand Cherokee diagrams. Sorry.
See if the XJ Cherokee diagrams above pertain to the rest of your GC O2S wiring, and if so, use them to repair your damaged wiring.
Edit: I think most, if not all, Oxygen Sensor wiring (wiring from the O2S) is the same. The two White wires are for the O2S heater, they are not polarity sensitive. The Gray wire goes to the PCM as the ground wire. The Black wire goes to the PCM as the O2S signal wire.
See if the XJ Cherokee diagrams above pertain to the rest of your GC O2S wiring, and if so, use them to repair your damaged wiring.
Edit: I think most, if not all, Oxygen Sensor wiring (wiring from the O2S) is the same. The two White wires are for the O2S heater, they are not polarity sensitive. The Gray wire goes to the PCM as the ground wire. The Black wire goes to the PCM as the O2S signal wire.
Has anyone ever wired in longer wires between the o2 sensor itself and the connector? I swapped my 2000 4.0 with a 1998 4.0 and had to use the 1998 head pipe which has no pre-cat o2's and my 2000 had 2. I'm going to weld in two bungs to install the pre-cat o2's
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