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Home >> Cadillac >> 1995 >> DeVille Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - 4.9L >> Pcm Code Charts >> Code P032, Open Manifold Absolute Pressure (Map) Sensor >> Action
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Code P032, Open Manifold Absolute Pressure (Map) Sensor: Action

PCM turns on MIL, sets BARO to 92 kPa, and uses a substitute MAP value based on engine RPM and throttle position switch status (open or closed). PCM disables long term fuel trim.

NOTE: Test numbers refer to numbers on diagnostic chart.
  1. Checks if circuit from sensor to PCM is able to respond to a 5-volt signal on MAP input. A reading of 106-109 kPa means wiring and PCM are okay.
  2. Checks for 5-volt reference signal at sensor connector.
  3. Checks circuit No. 432 for short to ground.
  4. Checks if PCM is able to respond to a 5-volt signal voltage on MAP input.
  5. Fault is most likely at PCM connector or PCM. Before replacing PCM, check for damaged pins or poor connections.