S4 Quattro Sedan V6-2.7L Turbo (APB) (2000)
-
80 °C corresponds to a resistance from 275...375 Ohms
If value does not match the specification:
-
Replace coolant temperature sensor.
If the value does match the specification:
-
Connect test box VAG1598/31 to wiring harness for engine control module. Do not connect to the engine control module itself. Refer to "Scan
Tool Testing/Scan Tool Connecting and Initial Checks", See: Powertrain Management/Computers and Control Systems/Testing and Inspection
Coolant temperature sensor with square connector:
-
Check following wiring connections for open circuits and short circuits to B+ or Ground (GND)
Harness
VAG1598/31 test
connector Terminal
box Socket
1(Signal)
93
3
108
Coolant temperature sensor with oval connector:
-
Check following wiring connections for open circuits and short circuits to B+ or Ground (GND)
Harness
VAG1598/31 test box Socket
connector Terminal
3
108
4
(Signal) 93
All:
-
Check wiring for short circuit to each other.
-
If necessary eliminate open circuit or short circuit.