Please help my front left and back rear right brakes come on without warning and for no reason.

Had the codes read using the VAG software

Address 03 ABS Brakes

Part no. 1c0907379k

Component asr front mk60 0103

Coding 0021505

Shop WSC 73430 790 00000

Vcid 3260F9A0AEA7BCAEB8-515A

1 Fault found

01314 - engine control module

013 check dtc memory - intermittent

Do I need to replace the ABS pump

Edited 4 July, 20169 yr by briaineo

What is the fault in the engine control module?  I think the 01314 fault you have in the ABS controller is merely it saying "hey, go check the engine module, it has a fault"

These are the faults under address 01 engine

Can't seem to see one dedicated to ECM

16725 camshaft position Spenser

17911 load signal alternator term DF

19557 motor for intake manifold

17964 charge pressure control

18263 power train data bus

There seems to be no address 22 on report, from what I see from other reports this is the ecm

These are the faults under address 01 engine

Can't seem to see one dedicated to ECM

16725 camshaft position Spenser

17911 load signal alternator term DF

19557 motor for intake manifold

17964 charge pressure control

18263 power train data bus

That's the module I meant, 01 Engine.

 

Plenty of problem-solving to do there then.  DF/load signal is an interesting one to start with perhaps, can cause other modules to get upset because it can result in poor charge management as the other systems no longer know how hard the alternator is having to work, assuming flat out by default I think. 

 

Look for a broken thin wire somewhere between alternator and engine ECU.

Actually as its turns out it wasn't the ABS causing the brakes to lock on but the push rod going into the master cylinder seems not to return sometimes!