Detection Condition

PCM monitors Engine Coolant Temperature (ECT) sensor signal at PCM terminal "4P" after engine is started when engine is cold. If ECT voltage does not reach expected temperature within specified period. DTC is set when PCM determines that it has taken an excessive amount of time for ECT to reach necessary temperature to start closed-loop fuel control. This is a Continuous Monitor (CM). MIL illuminates if PCM detects malfunction condition in 2 consecutive drive cycles. Pending code is available if PCM detects malfunction condition during first drive cycle. Freeze Frame Data is available and DTC is stored in PCM memory.