1999 AUDI A6 ground

24-101

Throttle valve control module power
supply, checking


If voltage is NOT OK: - Disconnect 8-pin harness connector from throttle valve control module
-J338-.
- Connect multimeter US 1119 (Fluke 83 or equivalent) between harness
connector terminals using adapter cables from VW 1594 connector test
kit.
- Switch ignition on, and check voltage. Specified values:

Connector terminals 3 and 7 (Ground): 9.0-14.5 volts
Connector terminals 4 and 7 (Ground): 4.0-6.0 volts
- Switch ignition off.
- Connect VAG 1598/22 test box Page 01
-56
.

- Check wiring for open circuit between ECM/test box and 8-pin harness
connector.

Connector terminal 3 to ECM/test box socket 69
Connector terminal 4 to ECM/test box socket 62
Connector terminal 7 to ECM/test box socket 67
Specified value: max. 1.5
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pair&id=AUDI.B5.FU02.24.2

Display group: 3


Display field: 3
Possible cause
Corrective action
0.0
Open circuit in wiring- Check wiring Page 24
-116
99.0
Short circuit to ground (GND)
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24-116

Checking wiring

- Connect VAG 1598/22 test box to ECM harness
connector Page 01
-56
.

- Connect multimeter US 1119 (Fluke 83 or
equivalent), using adapter cables from VW 1594
connector test kit.

- Measure resistance to check for short circuit
between test box sockets 2 (Ground) and 75
(signal wire).


Test box sockets 2 and 75

Specified value:

- Switch multimeter to voltage (20 VDC)
measuring range.

- Switch ignition on.

- Check wiring for short circuit to B+.

Note voltage reading if applicable (if not 0
volts).
Pa
ge 29 of 38 Throttle valve control module, checkin
g
11/19/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU02.24.2