P0031, 2003 es300
#1
Driver School Candidate
Thread Starter
P0031, 2003 es300
Please,
Code is for the heated circuit, bank 1 sensor 1.
I need a wiring diagram, my heated A/F sensor has 12v+ at the connector black wire but something is wonky with the ground which I believe is black with a red tracer. I understand it grounds through the ECU but there must be a connection somewhere between the A/F sensor connection and the ECU.
Thanks,
Dave
Code is for the heated circuit, bank 1 sensor 1.
I need a wiring diagram, my heated A/F sensor has 12v+ at the connector black wire but something is wonky with the ground which I believe is black with a red tracer. I understand it grounds through the ECU but there must be a connection somewhere between the A/F sensor connection and the ECU.
Thanks,
Dave
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LeX2K (04-12-18)
#3
Lexus Champion
Nice, thanks for the update.
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ES - 1st to 4th Gen (1990-2006)
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