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Clearing P0546 error - a related question

Posted: Thu Aug 22, 2019 7:52 am
by Roybridge
I have a P0546 (Exhaust Fas Temperature Sensor Circuit High) error in the PCM and OBDII modules of my Ford B-Max. I have run some Redex diesel particulate filter cleaner through the system, and I have cleared the code using FORScan. I notice that in the service menu, there is an option to reset the stored Exhaust Gas Temperature value. Should I be running that after clearing the fault code?

Re: Clearing P0546 error - a related question

Posted: Thu Aug 22, 2019 6:27 pm
by denbo
If the fault has gone and not returned, leave it at that.

Re: Clearing P0546 error - a related question

Posted: Fri Aug 23, 2019 2:35 pm
by Roybridge
Unfortunately, the code comes back a couple of days after clearing :(

Re: Clearing P0546 error - a related question

Posted: Fri Aug 23, 2019 6:18 pm
by denbo
Looks like a new sensor required