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Spanner light & codes After bullbar fitting.

Posted: Mon Jun 06, 2022 10:40 am
by Rodanderson
Hi Forum Members,
Fitted a PS4x4 bullbar on weekend all went well with fitment checked for any codes during & after, mounted radar then disconnected front sensor loom permanently & digital attenna still connected.
So when everything was completed started ranger up & orange engine light come on.
Connected forscan in DTC-(Code:UO401invalid data received from ECM/PCM A) & (Code:P007D charge air cooler temperature sensor circuit high ( bank 1).
I cleared dtc's but they return & engine run's & drives but engine is derated (this is the problem) with DTC'S or without, all wiring looks good & connection's too intercooler etc looks fine, if someone can point me in the right direction would be greatly appreciated with gifts & cash😁 thxs in advance Rod.

Px2,xlt,2"lift,bullbar,evc,mustang headlights,globalmirrors&windows,305/55/20rims,dualautocooler,6speed/bypassvalve,

Re: Spanner light & codes After bullbar fitting.

Posted: Mon Jun 06, 2022 11:30 am
by saeb
You have not plugged the intercooler temp sensor plug back in. Front passenger side of intercooler from memory.

Take off top plastic radiator cover and see what you can see. Not in a position to look right as this minute.

Re: Spanner light & codes After bullbar fitting.

Posted: Mon Jun 06, 2022 12:35 pm
by Rodanderson
G'day Stewart, Checked lnt/cooler connection's last night all looked good , lve Zip-tied looms on L/H side if there is no other explanation maybe l have a broken a wire in loom heading too sensor?? because when l was fitting bullbar l didn't unplug int/cooler sensor at all thxs Rod.

Re: Spanner light & codes After bullbar fitting.

Posted: Mon Jun 06, 2022 12:40 pm
by saeb
Unplug and plug back in again, make sure plug is clean. Otherwise you may have damaged the wires running to it.

Doubtful the sensor is faulty all of a sudden, personally have not heard of one fail.

Read the CAC temp PID in Forscan, it will be in PCM and see what value it is showing in degrees.

Re: Spanner light & codes After bullbar fitting.

Posted: Mon Jun 06, 2022 12:42 pm
by saeb
If unsure how, follow the red boxes.

Re: Spanner light & codes After bullbar fitting.

Posted: Mon Jun 06, 2022 2:00 pm
by Rodanderson
Thankyou Stewart, away on work till end of week now will try then , how do these files look too you anything out of sorts? Thxs rod.

Re: Spanner light & codes After bullbar fitting.

Posted: Thu Jun 09, 2022 7:18 am
by saeb
I will look to replicate the exact PCM DTC on the bench sometime over the weekend if you have not resolved before hand. Should give you a better idea of what to look for.

Re: Spanner light & codes After bullbar fitting.

Posted: Fri Jun 10, 2022 5:22 pm
by Rodanderson
G'day Stewart, Trying to diagnose my problem at the moment , could you tell me where to access the voltage pin for the CAC on the PCM, Plse thxs rod.

Re: Spanner light & codes After bullbar fitting.

Posted: Fri Jun 10, 2022 5:36 pm
by saeb
P007D is a symptom of the sensor not being plugged in or loom wire from the sensor cut completely. Tested on the bench an hour ago.

I'm not in a position to grab pin outs right now but can tomorrow. You are aware that the PCM sucks to get to and work on if you are back tracing?

Re: Spanner light & codes After bullbar fitting.

Posted: Sat Jun 11, 2022 9:35 am
by Rodanderson
Morning Stewart, After much plug testing voltage/continuity to no avail checked all fuses, l was getting no readings for intercooler sensor on live streaming PID's ,when other sensors were live, so in the end l plugged front parking sensor back together & up comes intercooler PID's must be getting power source back through parking sensor plug? cleared all dtc's run a self demand test & have taken for test drive all OK, thankyou Stewart for your time & Knowledge Rod.

Re: Spanner light & codes After bullbar fitting.

Posted: Wed Jun 15, 2022 7:21 pm
by saeb
Thanks for the update Rod. Thought I had replied but seems not.

Assuming you only unplugged the large plug near the horn, I can see no reason how or why it should affect the sensor, basically it shouldn't as it would not reach the shared loom until around the battery area.

Glad you had a positive outcome either way.