1998 AUDI A4 relay

01-52
Output Diagnostic Test Mode (DTM) activates
the following components in the specified
sequence:

Activation sequence
1 Evaporative Emission (EVAP) canister purge
regulator valve -N80-
2 Secondary Air Injection (AIR) solenoid valve
-N112-
3 Secondary Air Injection (AIR) pump relay -
J299-
4 Wastegate bypass regulator valve -N75-
5 Camshaft adjustment
6 Leak Detection Pump (LDP) tank ventilation
system
7 Recirculating valve for turbocharger -N249-
8 Cylinder 1 fuel injector -N30-
9 Cylinder 3 fuel injector -N32-
10 Cylinder 4 fuel injector -N33-
11 Cylinder 2 fuel injector -N31-
12
Brake system vacuum pump
1)

1) Only vehicles with automatic transmission

Test requirement:
Pa
ge 2 of 16 Out
put Dia
gnostic Test Mode
(DTM
) (function 03
)
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU07.01.3

01-54

Activating the EVAP canister purge regulator
valve (tank ventilation valve)

Note:
The Fuel Pump (FP) relay must trigger, the Fuel
Pump (FP) must run, flowing noise at fuel
pressure regulator is clearly audible. If Fuel
Pump (FP) does not run, check activation
Page 24
-55
.

Display on VAS5051:
If valve is not activated (does not click): A - 1. Actuator in test
1 - EVAP canister purge regulator valve -N80-
This valve is activated for approx. 1 minute (clicks), unless
button is pressed first to switch to the next actuator.
- Check Evaporative Emission (EVAP) canister purge regulator valve -
N80- Page 24
-114
.
Pa
ge 5 of 16 Out
put Dia
gnostic Test Mode
(DTM
) (function 03
)
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU07.01.3

01-56

Activating the Secondary Air Injection (AIR)
pump relay

-
Press button

Display on VAS5051:
If the Secondary Air Injection (AIR) pump motor does not start up in
intervals:
Repair Manual, 1.8 Liter 4
-Cyl. 5V Turbo Engine Mechanical, Engine
Code(s): AWM, Repair Group 26; Checking Secondary Air Injection (AIR) system
A - 3. Actuator in test
3 - Secondary Air Injection (AIR) pump relay -J299-The Secondary Air Injection (AIR) pump relay -J299- (in 3-socket
relay carrier in the E-box, at left in the plenum chamber , position
2) switches the Secondary Air Injection (AIR) pump motor -V101-
on and off in intervals for approx. 1 minute unless the next
actuator is selected first by pressing the button.
- Check Secondary Air Injection (AIR) pump relay -J299-:
Pa
ge 7 of 16 Out
put Dia
gnostic Test Mode
(DTM
) (function 03
)
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU07.01.3