Starts and Stalls , towed home, now fine ?

[sk1dmark]

Couple of days ago a friends 1.4 2009 Scirocco broke down, he said all the lights on the dash came on, doors locked and unlocked and then died.
I went over to him and it just started and stalls everytime. AA man checked and couldn't work it out so towed home. Neither of us could scan the car.

2 days later at home I popped round and it now starts and runs fine and I can scan it, but he's too worried to drive it until we can find something.
Its going to be harder to diagnose now that its running, but does anyone have any ideas ?

The scan reports

STATIC
U111100 - Function limitation due to missing message
00778 - Steering angle sensor
00332 - Activation for tank flap
01134 - Alarm horn
00924 - Relay for headlamp washer system
01299 - Diagnostic interface for data bus
01317 - Instrument cluster control module

Intermittent
U015500 - Lost Communication With Instrument Panel Cluster (IPC) Control Module
U016400 - Lost Communication With HVAC Control Module
P157000 - Engine Control Module (ECM) disabled
P068A00 - ECM/PCM Power Relay De-Energized Performance - Too Early
U014600 - Lost Communication With Serial Data Gateway Module "A"
03264 - Function shut-off
00774 - Left rear level control system sensor
01299 - Diagnostic interface for data bus
01317 - Instrument cluster control module
00778 - Steering angle sensor
00474 - Anti-theft immobilizer system control module
01314 - Engine control module (ECM)
01312 - Drive train data bus
01309 - Power steering control module
01321 - Airbag control module
00457 - Vehicle Electrical System Control Module
00381 - Instrument cluster data bus
00849 - S-contact at ignition starter switch
00625 - Speed signal
00474 - Anti-theft immobilizer system control module
01336 - Combination Comfort databus
00381 - Instrument cluster data bus
00532 - Supply voltage
01305 - Databus Infotainment

Thanks in advance

[bigkris06]

There’s a lot of codes there to be able to pin point a specific issue. I’d clear them all and rescan after a few miles to see if the issue comes back.

[sk1dmark]

I'm wondering if this is the start of the problem

ECM/PCM Power Relay De-Energized Performance - Too Early

If the ECM / PCM went offline would it cause all the COMM issues ?

Anyone know where the Relay is located ?

[bigkris06]

Same could said for a few of the issues on that list I’m afraid, at this point it quite literally could be any number of things and it will be extremely difficult to pinpoint a singular cause with that list.
I personally would clear all the codes and wait for the Issue to happen (or any issue for that matter) as that may narrow the search for an answer.