audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

Engine Speed Sensor > < Coolant Temperature Sensor/Switch (For Computer)|Locations|Page 4835
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Harness connector

VAG1598/31 test box

Terminal

Socket

1 (signal)

108

93

Coolant temperature sensor with oval connector:

-

Check the following wire connections for open circuit and short circuit to Ground (GND) and B+:

Harness connector

VAG1598/31 test box

Terminal

Socket

3

93

4 (signal)

108

All models

-

Check both wires to each other for short circuit.

-

Repair open circuit or short circuit if necessary.

If no malfunctions are found in wires:

-

Replace Engine Control Module (ECM).

Engine Speed Sensor > < Coolant Temperature Sensor/Switch (For Computer)|Locations|Page 4835