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Home >> Cadillac >> 1994 >> DeVille Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - 4.9L >> Pcm Code Charts >> Code P014, Shorted ECT Sensor Signal >> Action

Code P014, Shorted ECT Sensor Signal: Action

PCM turns on MIL and uses IAT sensor value instead of coolant sensor value for all calculations during first 10 minutes of operation; PCM then uses a value of 194°F (90°C). Transaxle shift adapts are maintained at current levels.

NOTE: Test numbers refer to numbers on diagnostic chart.
  1. With ECT sensor or wiring shorted, PCM parameter PD04 should indicate 298°F (148°C) or greater. If PD04 does not indicate 298°F (148°C) or greater, see NOTE ON INTERMITTENTS.
  2. Checks for shorted sensor or circuit No. 410. If parameter value stays at 147°C or greater with sensor unplugged, short is in circuit No. 410 between terminal "B" and PCM terminal 3E16.
  3. Check PCM connector. Fault is most likely at PCM connector or PCM.
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