OBD Operation Summary for Fiesta - MotorCraftService.com

CSER Monitor OperationDTCMonitor ExecutionMonitor SequenceSensors OKMonitoring DurationP050E: Cold Start Engine Exhaust Temperature Out Of RangeOnce per driving cycle, during a cold startMonitor data collection takes place during first 15 seconds of cold start as longas there are no active DTCsMAF, TPS, misfire, injectors, Fuel monitor, CKP, ignition coils, IAT, ECT, VVTMonitor completes in 100 ms after conditions are meantTypical CSER VCT target error entry conditions:Entry condition Minimum MaximumEngine run time3 sBattery voltage 11 V 16 VECT @ start 1.6 °C 38 °CCatalyst temp @ start 0 °C 100 °CBARO75 kPaFuel level 5%Expected change in Cat Temp 20 °CInjectors “ON”, DFCO not activeTypical CSER Monitor malfunction thresholds:Ratio reflecting lack of observed catalyst temperature increase compared with expected catalyst temperatureincrease (Table Based on ECT at engine start): > 0.5CONTINENTAL REVISED: SEPTEMBER 17, 2010 PAGE 67 OF 111