Monitor Description

If the canister pressure sensor output voltage (pressure) is less than 0.45 V: 42.110 kPa (abs) [6.106 psi (abs)], the ECM interprets this as an open or short circuit in the canister pressure sensor or its circuit, and stops the EVAP system monitor. If any deterioration has occurred, the ECM will illuminate the MIL and store this DTC (1 trip detection logic).

If the canister pressure sensor output voltage (pressure) is higher than 4.9 V: 123.761 kPa (abs) [17.945 psi (abs)], the ECM interprets this as an open or short circuit in the canister pressure sensor or its circuit, and stops the EVAP system monitor. If any deterioration has occurred, the ECM will illuminate the MIL and store this DTC (1 trip detection logic).

If the canister pressure sensor output voltage fluctuates rapidly for 10 seconds, the ECM stops the EVAP system monitor. The ECM interprets this as the canister pressure sensor voltage fluctuating, and stops the EVAP system monitor. The ECM then illuminates the MIL and stores this DTC (2 trip detection logic).