LEMON Manuals: Even more car manuals for everyone
Home >> Mazda >> 2006 >> 6 Mazdaspeed >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 4 (Engine Control System (L3)) >> Engine Coolant Temperature (ECT) Sensor Inspection >> ECT Sensor Resistance Inspection

ECT Sensor Resistance Inspection

WARNING: This page is about a different variant/trim than selected.
  1. Drain the engine coolant. (See COOLING SYSTEM SERVICE WARNINGS ).
  2. Remove the ECT sensor (located above the starter).
  3. Place the ECT sensor in water with a thermometer, and heat the water gradually.
  4. Measure the resistance between the ECT sensor terminals A and B using an ohmmeter.
    • If not as specified, replace the ECT sensor.
    • If the ECT sensor is normal, but PID value is out of specification, perform the "Circuit Open/Short Inspection".

Specification 

WATER TEMPERATURE RESISTANCE CHART

Water temperature (°C {°F}) Resistance (kilohm)
20 {68} 35.48-39.20
70 {158} 5.07-5.60
80 {176} 3.65-4.02
Fig 1: Engine Coolant Temperature Graph
G04325163Courtesy of MAZDA MOTORS CORP.