V8 Quattro V8-3562cc 3.6L DOHC (PT) (1990)
Coolant Temperature Sensor / Switch HVAC: Testing and Inspection
Engine Temperature Sensor
TEST CONDITIONS
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Fuses OK (check according to wiring diagram.
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Ambient temperature above 10° C (50° F).
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Engine at normal operating temperature.
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Vehicle not parked in direct sunlight.
Use Chart 3 to determine calculated engine coolant temperature.
EXAMPLE: If Channel 6 displays a code of 187 on Control head, calculated temperature according to Chart 3 is 25°C (77°F).
NOTE: The Engine temperature sensor is not equipped on all models (to be phased in). For vehicles without coolant temperature sensor (G62), view
A/C control head. Channel 6 will display a code of 255 for open circuit.
Engine Coolant Temperature Sensor, Chart 1 Of 3
Chart 1 of 3