Detection Condition

DTC is set when Powertrain Control Module (PCM) monitors short term fuel trim (SHRTFT) and long term fuel trim (LONGFT) values when monitoring conditions are met or DRIVE MODE 1 is run. If fuel trim exceeds preprogrammed criteria, PCM determines that the fuel system is too lean. This is a continuous monitor. MIL illuminates if PCM detects malfunction conditions in 2 consecutive drive cycles. Pending code is available if PCM detects malfunction conditions during first drive cycle. Freeze Frame Data is available and DTC is stored in PCM memory.