OBD Operation Summary for Fiesta - MotorCraftService.com

Downstream HO2S12 Response Rate Operation:DTCsP013A HO2S12 (Slow response - Rich to Lean)Monitor executionMonitor SequenceSensors OKMonitoring DurationOnce per driving cycleNoneHO2S, HO2S heater, MAF, VS, ECT3 DFCO events > 1 second longTypical Downstream HO2S12 response rate entry conditions:Entry condition Minimum MaximumClosed Loop Fuel ControlYesEngine Coolant Temperature 60 °CCatalyst temperature 348 °CVehicle speed 12 mph 77 mphDFCO activeDown stream O2 sensor Voltage at start of DFCO0.5 VMaximum Increase of O2 Voltage during DFCO test< 0.029 VMass Air Flow during DFCO 6 kg/h 110 kg/hInternal resistance of downstream oxygen sensor5000 ohmsMAF integral out of DFCO 10 g 1000 gCatalyst temperature 300 °C 1000 °CTypical Downstream HO2S12 response rate malfunction thresholds:P013ASlow Response (Average ratio for the rich to lean switching time determination): ≤ 0.1Slow Response (Diagnostic window based on O2 voltage at start of DFCO): > 15 % and < 70 %J1979 Downstream HO2S12 response rate Mode $06 DataMonitor ID Test ID Description for CAN$02 $84 Monitoring downstream sensor signal during throttle cut off Volts$02 $8A Rich to lean switching time ratio NoneCONTINENTAL REVISED: SEPTEMBER 17, 2010 PAGE 53 OF 111