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In-Vehicle Temperature Sensor C233

Fig 1: Identifying In-Vehicle Temperature Sensor C233
G03245313Courtesy of FORD MOTOR CO.
IN-VEHICLE TEMPERATURE SENSOR C233 CIRCUIT REFERENCE

Pin Number (s) Circuit Designation/Description Normal Condition/Measurement
1 CKT 3051 (BK/YE) sensor signal return (ground) Resistance of 0 ohms to chassis ground.
3 CKT 3050 (WH/OG) in-vehicle air temperature sensor input Approximately 5 volts with the EATC ON.