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+---- Thread: Audi A8 wont start help (/showthread.php?tid=45187)
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Audi A8 wont start help - alkazav - 17-01-2019
Hallo I have Audi A8 2001 year 3.3 TDI, crank OK but not start. I scan with VCDS and get error massage like below. Can anyone tell me where to start inspection-
Engine
18310 - After-Run Coolant Fan Control Module (J138)
P1902 - 35-00 - Open or Short to Ground
19466 - Relay for Fuel Cooling Pump (J445)
P3010 - 35-00 - Open or Short to Ground
19472 - Fuel Bypass Valve (N312)
P3016 - 35-00 - Open or Short to Ground
17649 - Fuel Injector for Cylinder 5 (N83)
P1241 - 35-00 - Open Circuit
18034 - Powertrain Data Bus
P1626 - 35-00 - Missing Message from TCU
and in instrument claster
01314 - Engine Control Module
49-10 - No Communications - Intermittent
01315 - Transmission Control Module
49-10 - No Communications - Intermittent
00668 - Supply Voltage Terminal 30
53-10 - Supply Voltage Too Low - Intermittent
and
01462 - Anti-theft alarm ultra sonic Sensor
RE: Audi A8 wont start help - loki954 - 17-01-2019
you should start here
01314 - Engine Control Module
49-10 - No Communications - Intermittent
RE: Audi A8 wont start help - alkazav - 17-01-2019
(17-01-2019, 19:16 PM)loki954 Wrote: you should start here
01314 - Engine Control Module
49-10 - No Communications - Intermittent
Thanks for replay, but I have communicatons with ECU with VCDS or other scan tool. I have this error massage in instrument claster. ECU is 4DO907409A master and 4DO907409B slave and instruments VDO D29
RE: Audi A8 wont start help - loki954 - 17-01-2019
you have but the cluster don't have......so no communication no immo no start ...
RE: Audi A8 wont start help - apoelistas - 17-01-2019
First step I would replace battery bcs "voltage too low" Then erase faults and check again.
RE: Audi A8 wont start help - alkazav - 18-01-2019
Now, I cleared all errors, battery OK, and try to start but not success again, then I read errors again but no errors. I dont know what to do.
RE: Audi A8 wont start help - bersch8688 - 18-01-2019
Scan complete car with vcds
RE: Audi A8 wont start help - apoelistas - 18-01-2019
Yes do a complete VCDs scan which takes about 1 minute. Then attach your complete VCDs scan text log here.
(erase vin)
RE: Audi A8 wont start help - alkazav - 18-01-2019
Now ,2 hours afther I tryed to start car, I again scan and I have this error below:
Friday,18,January,2019,12:07:49:39744
VIN: WAUZZZ
Mileage: 395870km-245982mi Repair Order:
Chassis Type: 4D (4D - Audi A8 D2 (1994 > 2003))
Scan: 25 01 03 08 11 15 16 17 18 35 37 45 55 56 57 65 67 75 76 77
02
VIN: WAUZZZ4DZ1N004925 Mileage: 395870km-245982miles
-------------------------------------------------------------------------------
Address 01: Engine Labels: None
Part No: 4D0 907 409 A
Component: 3.3l/4VTEDC G400AG D04
Coding: 00016
Shop #: WSC 02435
VCID: 26442DDAC27C4D71B3-4A3A
WAUZZZ4DZ1N004925 AUZ7Z0Y1573116
5 Faults Found:
17687 - Valve for Fuel Metering (N290)
P1279 - 35-10 - Open or Short to Ground - Intermittent
19466 - Relay for Fuel Cooling Pump (J445)
P3010 - 35-00 - Open or Short to Ground
19470 - Boost Pressure Regulator Valve 2 (N274)
P3014 - 35-10 - Open or Short to Ground - Intermittent
18328 - Engine Mount Solenoid Valves (N144) / (N145)
P1920 - 35-00 - Open or Short to Ground
17957 - Boost Pressure Regulation Valve (N75)
P1549 - 35-10 - Open or Short to Ground - Intermittent
Readiness: N/A
-------------------------------------------------------------------------------
Address 11: Engine II Labels: None
Part No: 4D0 907 409 B
Component: 3.3l/4VTEDC 0000AG D03
Coding: 00016
Shop #: WSC 02435
VCID: 275A20DEC576547988-4A3A
4 Faults Found:
19466 - Relay for Fuel Cooling Pump (J445)
P3010 - 35-00 - Open or Short to Ground
17687 - Valve for Fuel Metering (N290)
P1279 - 35-10 - Open or Short to Ground - Intermittent
19468 - Relay for Fuel Pump 2 (J49)
P3012 - 35-00 - Open or Short to Ground
19472 - Fuel Bypass Valve (N312)
P3016 - 35-10 - Open or Short to Ground - Intermittent
RE: Audi A8 wont start help - apoelistas - 18-01-2019
Check fuses then check relays j445, j49. Then let us know.