Detection Condition

PCM monitors signal of fuel level and fuel gauge sender unit output voltage from instrument cluster. If PCM detects fuel level or fuel gauge sender unit output voltage is too low, PCM determines fuel gauge sender unit circuit has a malfunction. This is a Continuous Monitor (CM). MIL illuminates if PCM detects malfunction condition in two consecutive drive cycles or in one drive cycle while DTC for same malfunction has been stored in PCM. PENDING CODE is available if PCM detects malfunction condition during first drive cycle. FREEZE FRAME DATA is available. DTC is stored in PCM memory.