Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Mazda >> 2000 >> MPV ES >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P0128: Thermostat Stuck Open >> Condition

DTC P0128: Thermostat Stuck Open: Condition

PCM monitors ECT and compares actual reading to expected ECT reading. If difference is more than specified, DTC is set. Causes may include the following: