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Pcm Code P032 - Open Map Sensor Circuit: Action

WARNING: This page is about a different car, the 1993 Cadillac Seville and 1993 Cadillac Eldorado. However, it is still accessible from the selected car via links, so may be relevant.

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

NOTE: Test numbers refer to numbers on diagnostic chart.
  1. This checks PCM's ability to respond to a 5-volt signal on MAP input. A reading of 106-109 kPa means wiring and PCM are okay.
  2. This checks for 5-volt reference signal at sensor connector.
  3. This checks circuit No. 432 for short to ground.
  4. This checks PCM's ability to respond to a 5-volt signal voltage on MAP input.
  5. Fault is most likely at PCM connector. If PCM connector is okay, replace PCM.
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