Another O2 sensor Problem!
#1
Another O2 sensor Problem!
So I got a P0153 code. I removed the driver side sensor and replaced it. I hooked up an ODB scan tool and I got 0 volts for the sensor I changed. See below:
Does anybody have a wiring diagram so I can trace the wires to see if I can find a break?
If you guys have another way to go please let me know. Thanks for the help.
Does anybody have a wiring diagram so I can trace the wires to see if I can find a break?
If you guys have another way to go please let me know. Thanks for the help.
#4
There are 2 wires for the front DS O2 sensor: orange (signal return) and red/black (signal).
Orange is a dedicated sensor ground from the PCM and it is used for several engine sensors including the other oxygen sensors. The orange O2 wire is spliced to a group of other orange wires inside the harness. Unless it is cut on the short branch to the DS O2 sensor, it is OK.
The red/black signal wire should be checked for open and short to ground - either can cause a 0v reading at the PCM. Disconnect the sensor and the PCM before running continuity checks.
It is a short run for both wires from the sensor directly to the PCM connector. The only intermediate plug connector is the one on the sensor itself.
Orange is a dedicated sensor ground from the PCM and it is used for several engine sensors including the other oxygen sensors. The orange O2 wire is spliced to a group of other orange wires inside the harness. Unless it is cut on the short branch to the DS O2 sensor, it is OK.
The red/black signal wire should be checked for open and short to ground - either can cause a 0v reading at the PCM. Disconnect the sensor and the PCM before running continuity checks.
It is a short run for both wires from the sensor directly to the PCM connector. The only intermediate plug connector is the one on the sensor itself.
#5
I checked the wiring and it looks ok. I got a ground on the orange wire and I got continuity on the red/black wire to the PCM connector and no short to ground.
Now what?
Could it be that I got a bad O2 sensor?
Is there a way to test the sensor? Maybe I just will return it and get a new one.
Now what?
Could it be that I got a bad O2 sensor?
Is there a way to test the sensor? Maybe I just will return it and get a new one.
Last edited by smallello; 09-08-2007 at 08:19 PM.
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