Test Description

Number(s) below refer to step number(s) on Diagnostic Chart:

1. 2 -  Comparing engine coolant temperature display on scan tool with actual coolant temperature, as measured with a thermostat. See ENGINE COOLANT TEMPERATURE SENSOR RESISTANCE  table. If displayed engine coolant temperature is not close to actual temperature, replace ECT sensor. If engine coolant temperature is close to actual, check for intermittent problem. See DIAGNOSTIC AIDS  .
   ENGINE COOLANT TEMPERATURE SENSOR RESISTANCE
   
   

   Temperature °F (°C)	Ohms
   -40 (-40)	100,700
   -22 (-30)	52,700
   5 (-15)	21,450
   23 (-5)	12,300
   41 (5)	7280
   59 (15)	4450
   77 (25)	2796
   95 (35)	1802
   113 (45)	1188
   140 (60)	667
   176 (80)	332
   212 (100)	177