P38A Blend motor codes

AndyF07 · Apr 27, 2023

Hi. I would like to pick the brains of the P38 experts please

After sorting out my heater matrix o-rings and putting everything back together the driver's side heating isn't working. Quick scan gave the fault codes in the attached pic. Before diving in I wondered if anyone had any thoughts on the route cause ? I am assuming it is a case of a new blend motor to begin with but any advice and experience much appreciated.

Cheers

kermit_rr · Apr 27, 2023

I'd unplug to remove the codes and try again.
They can stick, which causes a fault, if you flash across the connections with a 9v battery, it will cause them to move slightly and might jolly them into action

pwood999 · Apr 28, 2023

BTW what software App is that ? Most iPhone diags don't read the P38 ECU's.

AndyF07 · Apr 28, 2023

kermit_rr said:
I'd unplug to remove the codes and try again.
They can stick, which causes a fault, if you flash across the connections with a 9v battery, it will cause them to move slightly and might jolly them into action

Cheers. Will give it a shot

AndyF07 · Apr 28, 2023

pwood999 said:
BTW what software App is that ? Most iPhone diags don't read the P38 ECU's.

Its Lynx Evo, a dongle that Bluetooths to the iPhone.

Mark Piercy · Apr 28, 2023

Inside the blend motor casing the little position potentiometer can suffer from a cracked solder joint which can create this effect also.

pwood999 · Apr 28, 2023

Hmm. Works for 36 months, and then a 12 month subscription required, but no one says what that costs !!

Datatek · Apr 28, 2023

AndyF07 said:
Hi. I would like to pick the brains of the P38 experts please

After sorting out my heater matrix o-rings and putting everything back together the driver's side heating isn't working. Quick scan gave the fault codes in the attached pic. Before diving in I wondered if anyone had any thoughts on the route cause ? I am assuming it is a case of a new blend motor to begin with but any advice and experience much appreciated.

Cheers

View attachment 287026

From those codes, I could almost believe it's un plugged

P38A Blend motor codes

AndyF07

Active Member

kermit_rr

Very

pwood999

Well-Known Member

AndyF07

Active Member

AndyF07

Active Member

Mark Piercy

Well fumbled member....

pwood999

Well-Known Member

Datatek

Well-Known Member

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