Circuit Description

WARNING: This page is about a different variant/trim than selected.

VCM monitors performance of EVAP system by applying a predetermined level of vacuum to EVAP system, then monitors the vacuum decay rate. VCM sets this DTC if vacuum decay rate is greater than a predetermined value.

Conditions for setting DTC:

No ECT, HO2S, IAT, MAP, TP or VSS DTCs set.
DTC P0125 not active.
ECT and IAT greater than 39°F (4°C) but less than 86°F (30°C).
BARO pressure greater than 73 kPa.
Excess vacuum present in EVAP system.
Fuel level greater than 10-85 percent of full tank.
System voltage greater than 10 volts but less than 17 volts.