P0184
Powertrain Codes
P0184 - MAZDA - Fuel Temperature Sensor Signal Circuit Fault
Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
Possible Causes
- Harness or connectors (The sensor circuit is open or shorted)
- Fuel tank temperature sensor may be faulty
- Low ambient temperature operation
Description
The fuel tank temperature sensor is used to detect the fuel temperature inside the fuel tank. The sensor modifies a voltage signal from the Engine Control Module (ECM). The modified signal returns to the ECM as the fuel 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.