fuse AUDI A4 2000 B5 / 1.G APB Engine Motronic Syst

01-9

Vehicle diagnostic, testing and
information system VAS5051 or
VAG1551, connecting and selecting
functions


Requirements

Fuses for engine electronics OK
Fuel pump relay OK
Battery voltage at least 11 V
Ground (GND) connection for engine and
transmission OK

- Switch ignition off.

Note:
The Data Link Connector (DLC) is located below the dash, to the left of
the steering column. - Connect vehicle diagnostic, testing and information system VAS5051
with VAS5051/1 diagnostic cable. As an alternative, connect VAG1551
scan tool with VAG1551/3B diagnostic cable.
Pa
ge 11 of 166 Motronic s
ystem, On Board Dia
gnostic
(OBD
)
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU04.01.1

01-52

DTC
Description of
malfunction
Corrective action
SAE
VAG


P1391 17799 Camshaft Pos.
Sensor, Bank2
Short to Ground
2) - Check Camshaft Position (CMP) sensor Page 28
-45
P1392 17800 Camshaft Pos.
Sensor, Bank2
Open Circ./Short to B+
2)
P1410 17818 Tank Ventilation Valve
Circ.
Short to B+ - Check EVAP canister purge regulator valve Page 24
-134
P1411 17819 Sec. Air
Inj.Sys.,Bank2
Flow too low
2)
Repair Manual, 2.7 Liter V6 5V BiTurbo Engine Mechanical, Engine Code(s):
APB, Repair Group 26, Exhaust system, Secondary air injection system
- Check fuse for secondary air injection pump.
- Check vacuum hoses
- Check piping from pump to secondary air injection valve (Combi valve)
P1414 17822 Sec. Air
Inj.Sys.,Bank2
Leak Detected
2)
Repair Manual, 2.7 Liter V6 5V BiTurbo Engine Mechanical, Engine Code(s):
APB, Repair Group 26, Exhaust system, Secondary air injection system
- Check piping from pump to secondary air injection valve (combi valve) bank 2Pa
ge 62 of 166 Motronic s
ystem, On Board Dia
gnostic
(OBD
)
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU04.01.1

01-54

DTC
Description of
malfunction
Corrective action
SAE
VAG


P1423 17831 Sec. Air
Inj.Sys.,Bank1
Flow too low
2)
Repair Manual, 2.7 Liter V6 5V BiTurbo Engine Mechanical, Engine Code(s):
APB, Repair Group 26, Exhaust system, Secondary air injection system
- Check fuse for secondary air injection pump
- Check vacuum hoses
- Check piping from pump to secondary air injection valve (Combi valve)
P1424 17832 Sec. Air Inj. Sys.,
Bank1
Leak Detected
2)
Repair Manual, 2.7 Liter V6 5V BiTurbo Engine Mechanical, Engine Code(s):
APB, Repair Group 26, Exhaust system, Secondary air injection system
- Check piping from pump to secondary air injection valve (Combi valve) bank 1
P1425 17833 Tank Vent. Valve
Short to Ground
2) - Check EVAP canister valve 1 Page 24
-134
P1426 17834 Tank Vent. Valve
Open
2)
2) With this malfunction the exhaust Malfunction Indicator Light (MIL) is only switched on by the ECM, if the malfunction is
recognized after the engine has been restarted. Significance of MIL Page 01
-3 .
Pa
ge 65 of 166 Motronic s
ystem, On Board Dia
gnostic
(OBD
)
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU04.01.1

01-77

Test requirements

Fuses for engine electronics OK
Fuel pump relay OK

- Connect vehicle diagnostic, testing and
information system VAS 5051 or VAG1551 scan
tool and select engine electronics control
module by entering address word "01" Page 01
-9 . When doing this the ignition must be
switched on.
Rapid data transfer
HELP
Select function XX

Indicated on display
- Press buttons -0- and -3- to select function "Output Diagnostic Test
Mode."
Rapid data transfer
Q
03 - Output Dia
gnostic Test Mode

Indicated on display
Pa
ge 95 of 166 Motronic s
ystem, On Board Dia
gnostic
(OBD
)
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU04.01.1