Where is the in car temperature sensor circuit on a 1989 Cadillac sadan daville

P0119 Cadillac Engine Coolant Temperature Circuit Intermittent
Possible causes - Low engine coolant level
- Faulty Engine Coolant Temperature (ECT) sensor
- Faulty engine coolant thermostat
- Engine Coolant Temperature (ECT) sensor harness is open or shorted
- Engine Coolant Temperature (ECT) sensor electrical circuit poor connection What about the obd code? The Engine Control Module (ECM) detected an erratic signal from the engine Coolant Temperature (ECT) sensor during the system monitor test Symptoms - Engine Light ON (or Service Engine Soon Warning Light) P0119 Cadillac Description The Engine Coolant Temperature (ECT) sensor is used to detect the engine coolant temperature. The sensor modifies a voltage signal from the Engine Control Module (ECM). The modified signal returns to the ECM as the engine coolant temperature input. The sensor uses a thermistor which is sensitive to the change in temperature. The electrical resistance of the thermistor decreases as temperature increases.
P119 or P0119 ?

P119 - Shorted Fuel Injector Problem
or

Kill switch ??

call 718-316-5935--eddy and all cadillac electrical problems are solved

autozone.com

You're going to have to take "seamstress" tape measure (soft tape measure) and manually measure around pulleys if you're going to by pass AC

You think only 1 sensor,you said you changed it

How about a clogged exhaust converter (no power)

P041 (E041) ................... No Cam Reference Signal from Ignition Control Module
A048 ...................................................... Low Refrigerant Pressure
A011 .......................................... High Side Temperature Sensor Circuit
A012 ........................................... Low Side Temperature Sensor Circuit
http://myweb.accessus.net/~090/dtcobd1.html

The tempurature sensor sends the tempurature to the computer, and then the computer turns the fan on and off. Does the fans come on when the A/C is turned on?

Engine Coolant Temperature (ECT) Sensor OPERATION The Engine Coolant Temperature (ECT) sensor is mounted in the intake manifold and sends engine temperature information to the ECM. The ECM supplies 5 volts to the coolant temperature sensor circuit. The sensor is a thermistor which changes internal resistance as temperature changes. When the sensor is cold (internal resistance high), the ECM monitors a high signal voltage which it interprets as a cold engine. As the sensor warms (internal resistance low), the ECM monitors a low signal voltage which it interprets as warm engine.

P0110 - Intake Air Temperature (IAT) Sensor Circuit

P0111 - Intake Air Temperature (IAT) Sensor Performance

P0112 - Intake Air Temperature (IAT) Sensor Circuit Low Voltage

P0113 - Intake Air Temperature (IAT) Sensor Circuit High Voltage

P0114 - Intake Air Temperature Circuit Intermittent ,hope this helps you