wiring AUDI A4 1995 B5 / 1.G AFC Engine Coolant Temperature Sensor Checking Workshop Manual
Page 2 of 3
If the specified value is not obtained:
If the specified value is obtained: - Replace ECT sensor.
- Check wiring between ECT sensor and ECM as follows:
- Connect VAG 1598/19 test box to ECM harness connector page 01
-
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Page 3 of 3
28-26
If the specified values are not obtained: - Check wiring for continuity between terminal 3 of ECT sensor harness
connector and engine Ground (GND).
Specified value: max. 1 - Check signal wire for continuity between ECT sensor harness
connector terminal 1 and test box socket 16A.
Specified value: max. 1 - Check both wires for short circuit to each other.
If wiring is OK and the ECT sensor is OK: - Eliminate short or open circuit in wiring between ECT sensor and ECM
connector -A- or engine Ground (GND).
ECT sensor terminal
number ECM Connector A or engine Ground
(GND)
1 16A
3 Engine Ground (GND)
- Replace the ECM page 01
-265
.
Pa
ge 3 of 3 En
gine Coolant Tem
perature
(ECT
) sensor, checkin
g
11/23/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
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e=re
pair&id=AUDI.B5.FU01.28.7