Fault Codes

[Azza91]

Vin Number - VF7**************[VIN obfuscated, can be read by forum staff]

Just had a diagnostic due to engine light coming on this morning,
Two codes showing are

U2000
U1107

Can anyone shed some light?

Thanks

[mickthemaverick]

U2000:

Short Description
"Audio Rear Control Unit is Not Responding"

U1107:

Short Description
"SCP (J1850) Invalid or Missing Data for Legislated Diagnostics"

These come from the fault codes site where you can find more info:

https://faultcodes.co/cars/citroen/ds5/

Good luck

[Azza91]

Thanks Mick for your help. will look into this and get back to you

[GiveMeABreak]

Best not to use 'resources' such as those Mick - they're totally incorrect....

'U' codes are communications faults on the data networks and are generic in that CAN codes can apply to multiple systems. They usually have another 2 elements to the code at the end to distinguish further detail, so I suggest you do not spend time on what could be a red herring.

U2000 can apply to ESP, Parking Brake, Under Inflation Detection, Engine ECU etc, etc., but you get my meaning. The same for U1107.

We need the last 2 digits of the fault code or it is meaningless to be honest.... but appreciate the well-meant intention to help the OP out.

[Azza91]

Ok So had another Diagnostic test and theres two other codes that popped up and the originals in the post didnt show up but i have the full numbers for these now

B1818 1C
B1836 00

I have tried to do some digging but only found purgeot diagnostic with the same code,

Can anyone shed some light on these codes please?

Tia

[GiveMeABreak]

I was expecting the full 'U' codes that you previously posted... do you not have them?

As for the new faults:

Whilst you have this fault (B1818 1C), make sure you check the engine oil manually.

Fault Code:	B1818 1C
Description of Fault:	Oil level fault. The following conditions have to be met: - Oil level measurement correctly performed - Measured voltage lower than 40 mV or higher than 675 mV [*]The following conditions have to be met - Ignition on - Engine not running - After the built-in systems interface has switched to dormant mode
Conditions for Fault to clear:	The following conditions have to be met: - Oil level measurement correctly performed - Measured voltage between 40 and 675 mV
Downgrade Modes whilst Fault is active:	Message "check engine oil level" on the multifunction screen Message "OIL --" flashing displayed for 7 seconds
Symptoms:	Message "check engine oil level" on the multifunction screen Message "OIL --" flashing displayed for 7 seconds
Suspect Areas:	Configuration of the BSI Engine ECU Electrical harnesses Connector

B1836 00 is not coming up for this vehicle, but generally refers to the high frequency remote control being faulty.

[Azza91]

Hi Mark the codes on the original post didn't the last two numbers ( thats all i got from the garages report) so im insure of what they would be. The second set of codes came up afterwards once the original were deleted and never came back on. Thanks for your help Mark really appreciate it.