Engine start system fault. please contact workshop!

[shajjad]

my Audi a6 C7 will not start at all I have had the battery changed and also the clutch switch/clutch master cylinder and still it won't start

my fault codes are

U111300 ABS/TCS/ESP CAN SIGNAL SIGNAL FAULTY

U111300 FUNCTION RESTRICTION DUE TO FAULT VALUE RECEIVED 

can anyone please help me

THANK YOU 

 

[Sid2020]

Does your diagnostic machine allow you to see all modules fitted to the car, looks like a Bosch so would think so but want to check. 

are they all present 

does it allow you to run a canbus network check 

[Sid2020]

If your seeing all the usual modules the next thing I would do is as the fault codes look like there in your ABS module I would run live data on all 4 wheel speed sensors. See if all 4 are giving good feedback regarding speed reading.