ESP AUDI A4 1997 B5 / 1.G AFC Engine Fuel Injectors Checking Workshop Manual

24-31
If tester does not flash, check wiring between
terminal 2 of the respective fuel injector and the
ECM as follows:

- Connect VAG 1598/19 test box to ECM harness connector Repair
Group 01. - Check fuel injector 1 signal wire for continuity between harness
connector terminal 2 and test box socket D1.

Specified value: max. 1 - Check fuel injector 2 signal wire for continuity between harness
connector terminal 2 and test box socket D2.

Specified value: max. 1 - Check fuel injector 3 signal wire for continuity between harness
connector terminal 2 and test box socket D4.

Specified value: max. 1 - Check fuel injector 4 signal wire for continuity between harness
connector terminal 2 and test box socket D5.

Specified value: max. 1 - Check fuel injector 5 signal wire for continuity between harness
connector terminal 2 and test box socket D6.

Specified value: max. 1
Pa
ge 4 of 5 Fuel in
jectors, checkin
g
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU01.24.6

24-32

- Check fuel injector 6 signal wire for continuity
between harness connector terminal 2 and test
box socket D8.


Specified value: max. 1 If continuity is not obtained:

If voltage tester does not flash for each fuel injector:
If the voltage supply is OK: - Eliminate open or short circuit between terminal 2 of respective fuel
injector connector, and ECM connector. Cylinder number (fuel injector terminal 1)
Connector D terminal
1 1
2 2
3 4
4 5
5 6
6 8 - Check voltage supply for ECM page 28
-27
.
- Replace ECM Repair Group 01.
Pa
ge 5 of 5 Fuel in
jectors, checkin
g
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU01.24.6