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Home >> Audi >> 2016 >> S5 Prestige, 2D Convertible >> Repair and Diagnosis >> External Pages >> Different car >> Section 10 (1.8L - Turbo Engine Controls - Generic Scan Tool, Engine Code(S): AMB) >> ST - Generic Scan Tool >> Diagnostic Trouble Code (DTC) tables >> SAE P0xxx-DTCs >> Additional exhaust regulation

Additional exhaust regulation

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DTC Error Message Diagnostic Procedure Malfunction Criteria and Threshold Value Secondary Parameters with Enable Conditions Monitoring Time Length Frequency of checks, MIL Illum
P0411 Secondary Air Injection System Incorrect Flow Detected System too RICH-18% (LEV) Flow check during normal SA injection system too RICH (check after engine start)-45% Flow check during SA injection enabled by monitor if 1st chance is not completed (system too RICH)-45% Catalyst temperature-700°C Engine speed-Idle Mass air flow-6 32 kg/h Vehicle speed-Time after engine start->124 sec ECTS- 5 40°C Altitude-2,500 m Air mass flow-80 kg/h (make checks after engine start up) ECT->40°C Time after engine starts->115 sec Catalyst temperature-700°C Altitude-2,500 m air mass flow-5 40 kg/h Vehicle speed-3 Mph number of checks-5 2 - 10 Sec 30 Sec 2 DCY
P0413 Secondary Air Injection System Switching Valve (A) Circuit Open Open circuit-9.5 11.25 Volts Air valve, OFF Engine speed >80 rpm 0.5 Sec 2 DCY
P0414 Secondary Air Injection System Switching Valve (A) Circuit Shorted Short to Battery + 2.2-4.2 V Short to Ground, 6 V Air valve, On Engine speed, >80 rpm Air valve, OFF Engine speed >80 rpm 0.5 Sec 2 DCY
P0418 Secondary Air Injection System Control A Circuit Short to battery positive-0.6 1.2 A Short to ground-3.0 V Open circuit-4.5 5.5 V Pump relay-ON Engine speed->80 Rpm Pump relay-OFF Engine speed->80 Rpm Pump relay-OFF Engine speed->80 rpm 0.5 Sec 2 DCY
P0420 Catalyst System Efficiency Below Threshold ULEV) AR->2 (LEV) AR-Front: >0.25 Quattro: 0.26 Time after start-255 sec Engine start temperature->(-) 10°C Delta airflow-20 kg/k/sec EVAP purge flow-25% Mass air flow @-24 75 kg/h Catalyst temperature-560 710°C Mass air flow @-90 120 kg/h Catalyst temperature-695 800°C Front:Catalyst temperature-460 600°C Engine speed-1,520 2,800 Rpm Engine load-10 35% Quattro: Catalyst temperature-39 560°C Engine speed-1,800 3,200 Rpm Engine load-13 43% 70 Seconds Front: 90 Sec
  • Once/DCY
  • 2 DCY
P0441 Evaporative Emission System Incorrect Purge Flow Reaction of idle controller or lambda controller deviation less than 7% lambda controller and 30% idle controller Engine speed-Idle Speed deviation-(+/-)80 Rpm Altitude-2,500 m Time after start-(ULEV) > 450 sec (LEV) > 600 sec ECT or substitute temperature-> 60 or 70°C 25 Seconds
  • 2 DCY
P0442 Evaporative Emission System Leak Detected (Small Leak) Pressure drop within predetermined times-1.85 2.05 sec (depending on altitude and intake air temperature) Pressure drop within predetermined times-2.3 2.7 sec (depending on altitude and intake air temperature) Purge valve CLOSED LDP-Activated Altitude-2.500 m Intake air temperature->5°C Ambient pressure->6 hPa Reduction of intake air start: no deep down hill driving-vehicle speed at low load (2%) Time after engine start-255 sec Intake manifold low pressure>150 hPa Engine temperature-5 - 115°C Restart ECT difference->50°C Vehicle speed->6 mph Purge valve CLOSED LDP-Activated Altitude-2.500 m Ambient pressure-3 hPa Intake manifold low pressure-> 130 hPa Engine temperature-(-)9.75 105°C Restart temperature difference-5°C Reduction of intake air-5k Time after restart-230 2,000 sec Max 140 seconds, once every driving cycle
  • 2 DCY
P0444 Evaporative Emission System Purge Control Valve Circuit Open Open circuit-Signal voltage >4.5 - 5.5 V
  • EVAP purge valve, off
  • Engine speed, > 80 RPM
0.5 Seconds
  • 2 DCY
P0445 Evaporative Emission System Purge Control Valve Circuit Shorted Short to Battery + 2.2 - 4 V Short to Ground, 3 V EVAP. Purge valve-On Engine speed-80 Rpm EVAP. Purge valve-OFF Engine speed-80 Rpm 0.5 Seconds 2 DCY
P0449 Evaporative Emission System Vent Valve/Solenoid Circuit (Only LEV Audi TT) Short to battery positive- 2.7 5.5 A Short to ground- >3.0 V Open circuit-4.5 5.5 V Valve-ON Engine speed- >80 rpm Valve-OFF Engine speed- >80 rpm Valve-OFF Engine speed- >80 rpm 0.5 Sec 0.5 Sec 0.5 Sec 2 DCY
P0455 Evaporative Emission System Leak Detected (large leak) Pressure drop within predetermined times-0.95 Seconds Pressure drop within predetermined times-2.3 2.7 seconds (depending on altitude and intake air temperature) Purge valve CLOSED LDP-Activated Altitude-2.500 m Intake air temperature-> 5°C Ambient pressure-> 6hPa Reduction of intake air start: no deep down hill driving-vehicle speed at low load (2%) Time after engine start-255 sec Intake manifold low pressure> 150 hPa Engine temperature-5 - 115°C Restart ECT difference-> 50°C Vehicle speed-> 6 Mph Purge valve CLOSED LDP-Activated Altitude-2.500 m Ambient pressure- 3 hPa Intake manifold low pressure-> 130 hPa Engine temperature-(-)9.75 105°C Restart temperature difference- 5°C Reduction of intake air- 5k Time after restart-230 2,000 sec Max 140 Sec once every driving cycle
  • 2 DCY
P0456 Evaporative Emission System Leak Detected (very small leak) Pressure drop within predetermined times-2.05 7 sec Pressure drop within predetermined times-2.3 2.7 sec (depending on altitude and intake air temperature) Purge valve CLOSED LDP-Activated Altitude-2.500 m Intake air temperature-> 5°C Ambient pressure-> 6hPa Reduction of intake air start: no deep down hill driving-vehicle speed at low load (2%) Time after engine start-255 sec Intake manifold low pressure> 150 hPa Engine temperature-5 - 115°C Restart ECT difference-> 50°C Vehicle speed-> 6 Mph Purge valve CLOSED LDP-Activated Altitude-2.500 m Ambient pressure- 3 hPa Intake manifold low pressure-> 130 hPa Engine temperature-(-)9.75 105°C Restart temperature difference- 5°C Reduction of intake air- 5k Time after restart-230 2,000 sec Max 140 Sec once every driving cycle
  • 2 DCY