SRX 2006-2007

Testing

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  1. Remove the ECT sensor.
  2.  
  3. Measure and record the resistance of the ECT sensor at various temperatures, then compare those measurements to the following. The change in resistance should occur smoothly. If there are any sudden changes, the sensor is faulty.
  4.  

3.6L Engines



-4°F: 14,096 ohms minimum, 16,827 maximum
 
14°F: 8,642 ohms minimum, 10,152 maximum
 
32°F: 5,466 ohms minimum, 6,326 maximum
 
68°F: 2,351 ohms minimum, 2,649 maximum
 
77°F: 1,941 ohms minimum, 2,173 maximum
 
104°F: 1,118 ohms minimum, 1,231 maximum
 
140°F: 573 ohms minimum, 618 maximum
 
176°F: 313 ohms minimum, 332 maximum
 
212°F: 182 ohms minimum, 191 maximum
 
248°F: 109 ohms minimum, 116 maximum
 

4.6L Engines



-4°F: 28680 ohms
 
14°F: 16180 ohms
 
32°F: 9420 ohms
 
50°F: 5670 ohms
 
68°F: 3520 ohms
 
86°F: 2238 ohms
 
104°F: 1459 ohms
 
122°F: 973 ohms
 
158°F: 467 ohms
 
194°F: 241 ohms
 
230°F: 132 ohms
 
266°F: 77 ohms
 

  1. If the sensor tests outside of these ranges, replace the sensor.
  2.  

 
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