Monitor Description

The ECM monitors the sensor voltage and uses this value to calculate the manifold absolute pressure. When the sensor output voltage deviates from the normal operating range, the ECM interprets this as a malfunction in the manifold pressure sensor and stores a DTC.

Example:

When the sensor output voltage remains below 0.5 V, or higher than 4.5 V for more than 0.5 seconds, the ECM stores a DTC.

If the malfunction is not repaired successfully, a DTC is stored 0.5 seconds after the engine is next started.