Technical Multiple codes thrown thoughts ?

[Seanwinder22]

A little help on this please
So I received the multiecuscan so looking on diagnostic on my fiat ducato 3.0 maxi40 multijet 160 2009

I was a little shocked tbh what I found in stored codes
I have had a issue with management light coming on and said the brake light switch and brake light bulbs on my icarsoft scanner so changed them and delete code and been fine since

No engine problems or management light at all I wanted this software to actually carry out the clutch calibration but while in the software today I couldn’t carry out the procedure obviously because I’m still throwing codes

Here’s what I found
P0530 - Air conditioner pressure se
P0053 - Lambda sensor resistance
P2243 - Lambda sensor electrical
P250A - Engine oil level sensor
P0520 - Oil pressure switch
P0504 - Brake pedal switch

Ok I had just done a service and to much oil was put in which I did drain some out so the both engine oil codes cleared oil pressure and oil sensor
Iwas left with 4 I then
I knew about aircon but thought aircon had run out so was ready to top up when get chance so first code p0503 I thought was this ?

No idea on the other 2 I’ve had no issues has mentioned but I cleared all codes anyway brake switch I have changed because was showing pressed but been fine

But these do come back
P0530 - Air conditioner pressure sensor
P0053 - Lambda sensor resistance
P2243 - Lambda sensor electrical diagnosis but the brake light code then changed to C1161
Also I had 1 code on the gearbox error code check
P0856 VDC messages (from CAN)

After deleting a few times trying to do a few gearbox adjustments like drain and calibration etc
The only one I can’t do is calibration
Here’s all images I took
Is this some wiring open circuit maybe ? Again from brake light maybe faulty bulb
What’s also strange today I checked voltage on battery I was 14.2v
Also in Mes but engine parameters 14..2v
But in gearbox parameter was 13.2v which I’m thinking gearbox earth ?

 

[theoneandonly]

As a quick off top of head with that many codes you could well have a wiring problem was going to say +5V sensor but i think the O2 are 12V disconnect at connector. The gear box Earth is also a very goood call.

 

[Seanwinder22]

Yea possibly matey but im starting to see a clear picture here I think
I HOPE NOT but I’m preparing Lambda sensor and the other easy fix if not a short circuit
My other issue P0856 - VDC messages (from CAN)
P2908 clutch sub system was a stored code from my last set of issues with the wiring harness

But put them both together I’m thinking selespeed clutch bearing (Slave cylinder) fail and selespeed actuator
I will keep starting and driving seeing what fault codes I can get on the gearbox

 

[theoneandonly]

hope this helps (from someone on forum Austrailian?) will read post now

 

[Seanwinder22]

View attachment 455864
hope this helps (from someone on forum Austrailian?) will read post now

Thanks so the 02 sensor is the lambda

 

[theoneandonly]

P0856 Traction Control Input Signal
a quick search say electronic brake system. I read that as ABS module in the Ducato. Have you got a scope? if so next step is to check iif there is canbus cominication on SBS and transmition modules ie check canhi and canlo for signals or even voltage if only multimeter.
thought id posted this
yes O2 sensor is Lambda

 

[Seanwinder22]

View attachment 455864
hope this helps (from someone on forum Austrailian?) will read post now

Thanks

P0856 Traction Control Input Signal
a quick search say electronic brake system. I read that as ABS module in the Ducato. Have you got a scope? if so next step is to check iif there is canbus cominication on SBS and transmition modules ie check canhi and canlo for signals or even voltage if only multimeter.
thought id posted this
yes O2 sensor is Lambda

just been reading this mate
I’ve actually just posted in the comfortmatic forum every selespeed code and what they mean very strange I’m seeing these but no management light only the brake switch
Must be connected short issue