wiring AUDI A4 1997 B5 / 1.G AFC Engine Sensor For EVAP Canister Checking Workshop Manual

24-62
If vacuum hose is OK:

If the specified value is not obtained: - Remove harness connector from sensor for EVAP canister.
- Switch multimeter (Fluke 83 or equivalent) to 20 volt range and connect
between harness connector terminals 1 (GND) and 3 (B+).
- Switch ignition ON.
Specified value: approx. 5 volts
- Check wiring to ECM.

- Connect VAG 1598/19 test box to ECM page 01
-255
.
- Check following wiring connections for continuity.Sensor -G172- connector terminal
number VAG 1598/19 test box socket
number
1
3 C2
C6 - If necessary, eliminate open or short in wiring.
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ge 3 of 4 Sensor for EVAP canister, checkin
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24-63
If wiring is OK and there is not at least 5 volts at
the sensor harness connector:

- Replace ECM page 01
-265
.

If wiring is OK: - Check wiring for continuity between harness connector and ECM.Sensor -G172- connector terminal
number VAG 1598/19 test box socket
number
2 B16 - If necessary, eliminate open or short in wiring.
- Replace sensor for EVAP canister -G172-.
Pa
ge 4 of 4 Sensor for EVAP canister, checkin
g
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
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e=re
pair&id=AUDI.B5.FU01.24.16