Detection Condition

WARNING: This page is about a different car, the 2003 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.

PCM monitors pump load current (EVAP line pressure) while evaporative leak monitor is operating. When either of following is detected 28 times or more successively, PCM determines EVAP system leak detection pump heater has a malfunction:

While obtaining reference current value, change in pump load current exceeds specification
After obtaining reference current value, pump load current is kept lower than maximum pump load current for more than specified time

This is an intermittent monitor (other). MIL illuminates if PCM detects malfunction condition. PENDING CODE is available if PCM detects malfunction condition. FREEZE FRAME DATA is available. DTC is stored in PCM memory.