lights AUDI A4 2000 B5 / 1.G AFC Engine Auxiliary Input Signals Checking Workshop Manual

24-100

-
Press button.
- Select "End Output" function 06 and press -Q-
button to confirm input.
If a display did NOT change, even though coding
is OK:

- Connect VAG 1598/19 test box to ECM harness
connector page 01
-255
.

- Connect VAG 1527B voltage tester between test
box sockets 11B (signal) and 10B (constant
B+/terminal 30).

Voltage tester must light up (with TR selector
lever in P or N), then go out with drive mode
(1, 2, 3, R or D) selected
If voltage tester lights up and goes out when
drive mode is selected, even though the range
indicator in the "Read measuring value block" is
OK:

- Replace ECM page 01
-265
.
If voltage tester lights up constantly or not at all:

-
Check wiring for short to ground, short to B+ or open circuit between
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