rex error code help please.,

[Chrisi3]

Hi
Our rex engine cut out mid journey the other day. Message on screen along lines of - drive train error but you can continue on electric power.

After a stop it worked again. Charged up a bit and later went home.

I tried the rex again - it worked but then engine management light came in.

So today I've plugged reader into it. Two faults - that aren't eraseable.

P138F and P138F P

These aren't covered in the reader's hand book. Any ideas.
Off now to disconnect batteries count to 100 and reconnect. See if that resets it.

Thanks

 

[alohart]

Look up BMW DTC's here.

Apparently, P138F is reported by generic code readers whereas a more specific hexadecimal code is reported by code readers that know BMW DTC's (e.g., BimmerLink). This DTC might be due to a problem with the crankshaft position sensor, the oxygen sensor, or the ambient pressure sensor. The more specific hexadecimal DTC would be needed to differentiate between these diagnoses.