relay AUDI A4 1998 B5 / 1.G APB Engine Secondary Air System User Guide
Page 24 of 29
26-51
Check voltage supply of the Secondary Air
Injection (AIR) pump motor
- Remove connector for Secondary Air Injection
(AIR) pump motor -V101-.
- Connect VAG 1527B voltage tester between
terminals 1 and 2
- Initiate output Diagnostic Test Mode (DTM) and
activate Secondary Air Injection (AIR) pump
relay -J299-.
Repair Manual, 2.7 Liter V6 5V BiTurbo Fuel
Injection & Ignition, Engine Code(s): APB, Repair Group 01
LED must blink
Pa
ge 24 of 29 Secondar
y air s
ystem
11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE05.26.2
Page 25 of 29
26-52
If LED does not blink:
- Perform following tests marked with dots:
Check wire connection from connector at
Secondary Air Injection (AIR) pump motor-
V101- to Secondary Air Injection (AIR) pump
relay -J299- (in 3-socket relay carrier in E-
Box, plenum chamber, position 2) for open
circuit.
Electrical Wiring Diagrams, Troubleshooting &
Component Locations
Check wire connection from connector at
Secondary Air Injection (AIR) pump motor -
V101- to Ground (GND) connection 1 in
engine compartment wiring harness for open
circuit:
Electrical Wiring Diagrams, Troubleshooting &
Component Locations
If no malfunctions are detected:
- Replace Secondary Air Injection (AIR) pump
motor -V101-.
Pa
ge 25 of 29 Secondar
y air s
ystem
11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE05.26.2