Temperature Sensor

Temperature sensor resistance

The resistance between ECU plug terminals 13 and 17 (ground) should read 2-3 kOhms at 68 F/20 C. At 14 F/-10 C 7-12 kOhms, at 176 F/80 C 250-400 Ohms.

  • Meter reads infinite resistance: Check temperature sensor directly at terminals on sensor. If sensor resistance is ok, replace cables. If tester shows 0 Ohms (continuity) at sensor terminals, replace sensor.
  • Meter reads 0 Ohm (continuity): Pull plug from sensor. If meter at ECU plug then reads infinite, replace sensor. If not, replace cables.