Pin out for O2 sensor
08-31-2007, 03:03 PM
#1
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Pin out for O2 sensor
Anyone know the pin out and more specfically, the wire color for an 02 Oxygen sensor. I am trying to figure out if I have a bad O2 sensor. The manual says use a meter to monitor the Sig+ and Grd. There are four wires and the manual doesn't mention the wire colors. The wiring diagram in the manual shows the wire colors but
doesn't label the wires so I don't know which one is Sig+ and Grd. Maybe its easier to just go buy another sensor....
The manual shows a picture of the plug with the following labels:
Sig+
Grd
HTD Grd
B+Volt ( I assume this is battery voltage)
The wiring diagram shows the wire colors but not the above labels.
doesn't label the wires so I don't know which one is Sig+ and Grd. Maybe its easier to just go buy another sensor....
The manual shows a picture of the plug with the following labels:Sig+
Grd
HTD Grd
B+Volt ( I assume this is battery voltage)
The wiring diagram shows the wire colors but not the above labels.
08-31-2007, 03:26 PM
#3
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RE: Pin out for O2 sensor
I already know its Bank 1, the downstream sensor. Just trying to troubleshoot that particular sensor using the procedure in the manual. My choices are limited so I guess I can just poke around until I figure it out, or go by a sensor from my local Ford dealer.
08-31-2007, 03:52 PM
#5
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RE: Pin out for O2 sensor
P0420. Not trying to service it. Just trying to find out if its broke. I plan on removing it and making sure contacts are clean and its seated correctly etc... but you can troubleshoot them using a DVM to monitor voltage levels to see if its functioning ok. Its just no clear to me which pins to monitor, but there are only 4 so it will take a little experimenting I guess.
08-31-2007, 04:20 PM
#6
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RE: Pin out for O2 sensor
Gray/Red is the sensor ground on all sensors;[/align][/align]Bank 1, front sensor signal is Gray/Light Blue;[/align]Bank 1, rear sensor signal is Red/Light Green[/align]Bank 2, front sig is Red/Black;[/align]Bank 2, rear sig is Violet/Light Green;[/align][/align]Heater +12V is Red/Yellow on all;[/align][/align]Bank 1, front heater ground is Red/White;[/align]Bank 1, rear htr gnd isWhite/Black;[/align]Bank 2, front htr gnd is Yellow/Light Blue;[/align]Bank 2, rear htr gnd is Tan/Yellow;[/align][/align][/align]
09-02-2007, 09:33 AM
#8
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RE: Pin out for O2 sensor
Cliffyk,
Reading this again, I am a little confused. Specifically bank 1. You have two wires at Red/Light Green. They are:
Rear Sensor signal and Rear htr gnd.
Could you have mixed them up?
Reading this again, I am a little confused. Specifically bank 1. You have two wires at Red/Light Green. They are:
Rear Sensor signal and Rear htr gnd.
Could you have mixed them up?
09-02-2007, 01:20 PM
#9
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RE: Pin out for O2 sensor
I did this while SWMBO was telling me it was time for us to go out(after she spent over an hour getting ready)--sorry for the errors--[/align][/align]I've just edited the original posting, and double checked it, should be OK...[/align][/align]-cliff-[/align]