Section 7 (1.8L - Fuel Injection Ignition, Engine Code(S): AWW, AWP (A4 Platform))
WARNING: This page is about a different variant/trim than selected.
- 01 On Board Diagnostic (OBD)
- On Board Diagnostic (OBD)
- On Board Diagnostic (OBD), features
- On Board Diagnostic (OBD), technical data
- Exhaust gas warning lamp MIL (Malfunction Indicator Lamp), significance
- Electronic Power Control (EPC) warning lamp in instrument cluster, significance
- VAG1551 scan tool, connecting and selecting engine control module
- Vehicle Diagnostic, Testing and Information System VAS5051 , connecting and selecting engine control module
- Diagnostic Trouble Code (DTC) memory
- Diagnostic Trouble Code (DTC) table: SAE P0 codes
- Output Diagnostic Test Mode
- Output Diagnostic Test Mode (function 03), performing
- Notes
- Test conditions
- Work sequence
- Activating evaporative emission (EVAP) canister purge regulator valve N80 :
- Activating secondary air injection (AIR) solenoid valve N112 :
- Activating secondary air injection (AIR) pump relay J299 :
- If the LED does not flash but the secondary air injection pump relay clicks:
- If LED does not flash and secondary air injection pump relay does not click:
- Activating Wastegate bypass regulator valve N75 :
- Activate Camshaft Adjustment Valve 1 N205 :
- Activating leak detection pump (LDP) V144 :
- Activating Turbocharger Recirculating Valve N249
- Output Diagnostic Test Mode (function 03), performing
- Readiness code
- Measuring Value Block
- Safety precautions
- Read Measuring Value Block (function 08)
- Measuring value blocks, evaluating display groups 0 to 9 (Basic functions)
- Display group 1 (Basic functions)
- Significance of 8-digit number block for readiness code
- Evaluating display group 1, display zone 1 - Engine speed (idling speed)
- Display group 2 (Basic functions) Mass Air Flow (MAF) sensor
- Evaluating display group 2, display zone 3 - Injection period
- Evaluating display group 2, display zone 4 - Air mass drawn in
- Display group 3 (Basic functions) Mass Air Flow (MAF) sensor
- Display group 4 (Basic functions)
- Evaluating display group 4, display zone 2 - Control module voltage supply
- Evaluating display group 4, display zone 3 - Coolant temperature
- Evaluating display group 4, display zone 4 - Intake air temperature
- Display group 5 (Basic functions)
- Display group 6 (Basic functions)
- Only engine code AWP with automatic transmission:
- Measuring value blocks, evaluating display groups 10 to 29 (Ignition)
- Display group 10 (Ignition)
- Evaluating display group 10, display zone 2 - Engine load
- Evaluating display group 10, display zone 3 - Throttle valve angle
- Display group 14 (Ignition) Misfire recognition
- Display group 15 -Ignition- Misfire recognition Cyl. 1 to Cyl. 3
- Display group 16 -Ignition- misfire recognition Cyl.
- Evaluating display group 14, display zone 3 - Total number of misfires
- Display group 22 (Ignition) Knock control
- Display group 23 (Ignition) Knock control
- Evaluating display groups 22/23, display zones 3 and 4 - Retardation of ignition
- Display group 28 (Ignition) knock control
- Measuring value blocks, evaluating display groups 30 to 49, 99, 107 (oxygen sensor control)
- Display group 30 (oxygen sensor control)
- Significance of 3 digit number block in display zones 1 and 2
- Display group 32 (oxygen sensor control) Oxygen sensor learned values
- Evaluating display zone 32, display zones 1 and 2 - Oxygen sensor learned values
- Display group 33 (oxygen sensor control) Oxygen sensor control values
- Evaluating display group 33, display zone 1 - oxygen sensor regulator before catalyst
- Display group 34 (oxygen sensor control) oxygen sensor diagnostic before catalyst (checking age via cycle duration monitoring)
- Display group 36 (oxygen sensor control) Operational readiness of oxygen sensor after catalyst
- Evaluating display group 36, display zone 1 - Oxygen sensor voltage, oxygen sensor after catalyst
- Display group 37 (oxygen sensor control) oxygen sensor - dwell period test
- Display group 41 (oxygen sensor control) oxygen sensor heating
- Display group 43 (oxygen sensor control) oxygen sensor diagnostic after catalyst (ageing check)
- Display group 46 (oxygen sensor control) Catalyst diagnostic (conversion test)
- Display group 99 -Oxygen sensor control - oxygen sensor operating condition
- Display group 107 -Oxygen sensor control- Diagnostic of fuel system
- Measuring value blocks, evaluating display groups 50 to 69 (Speed regulation)
- Display group 50 (Speed regulation) Operating condition
- Display group 54 (Speed regulation)
- Display group 55 (Speed regulation) Idling stabilization
- Significance of 5 digit number block
- Display group 56 (Speed regulation) Idling speed stabilization
- Display group 60 (Speed regulation) Adaptation EPC system * See note
- Display group 61 (Speed regulation) Electronic Power Control (EPC)
- Display group 62 (Speed regulation) Electronic Power Control (EPC)
- Vehicles with automatic transmissions
- Vehicles with engine code AWP and cruise control system (CCS)
- Significance of the numbers in the 8-digit display, display field 2, brake and cruise control switch
- Significance of the numbers in the 8-digit display, display field 4, cruise control switch
- Display group 66 -Cruise control system
- Significance of the figures in the 4 digit display, display zone 2, brakes, clutch and CCS switches position
- Significance of the figures in the 4 digit display, display zone 4, CCS control switches
- Measuring value blocks, evaluating display groups 70 to 79 (emission reduction)
- Measured value blocks, evaluating display groups 86 to 89, 100 (Readiness code)
- Measuring value blocks, evaluating display groups 90 to 97 (Performance increase)
- Measuring value blocks, evaluating display groups 110 to 119 (Charge pressure control)
- Display group 111 - Charge pressure control - adaptation valves for boost pressure limitation
- Display group 113 - Charge pressure control
- Evaluating display group 113, display zone 4 - atmospheric pressure
- Display group 114 (Charge pressure control)
- Display group 115 (Charge pressure control)
- Display group 116 - Charge pressure control
- Display group 117 - Charge pressure control
- Display group 118 - Charge pressure control
- Display group 119 (Charge pressure control)
- Measuring value blocks, evaluating display groups 120 to 129 (Communication)
- On Board Diagnostic (OBD)
- 24 Multiport Fuel Injection (MFI)
- Injection system, servicing
- Components, checking
- Oxygen sensor heating for oxygen sensor before catalyst, checking
- Oxygen sensor heating for Oxygen Sensor (O2S) behind Three Way Catalytic Converter (TWC), checking
- Mass Air Flow (MAF) Sensor G70 , checking
- Throttle valve control module, checking
- Engine Coolant Temperature (ECT) sensor G62 , checking
- Intake Air Temperature (IAT) sensor G42 , checking
- Engine speed (RPM) sensor G28 , checking
- Injectors, checking
- Fuel pressure regulator and holding pressure, checking
- Intake air system (unmetered air), checking for leaks
- Checking functions
- Idling check
- Idling speed, adapting
- Oxygen sensor and oxygen sensor control before catalyst, checking
- Oxygen sensor and oxygen sensor control after catalyst, checking
- Oxygen sensor aging, oxygen sensor before catalyst for engine code AWP, checking
- Oxygen sensor aging, oxygen sensor before catalyst for engine code AWW, checking
- Oxygen sensor aging, oxygen sensor after catalyst for engine code AWP, checking
- Oxygen sensor aging, oxygen sensor after catalyst for engine code AWW, checking
- Operational readiness of oxygen sensor after catalyst, checking
- Engine operating mode, checking
- Engine Control Module (ECM)
- Control module voltage supply, checking
- Procedure after voltage supply open circuit
- Engine control module, replacing
- Engine control module, coding
- Coding variations of engine control module
- Engine control module, adapting to throttle valve control module
- Engine control module, adapting to electronic immobilizer
- Kick-down point, learning
- Additional signals, checking
- Vehicle speed signal, checking
- Signal from/to air conditioning system, checking
- Signal from clutch pedal switch for engine code AWP, checking
- Signal from clutch pedal switch for engine code AWW, checking
- Signal from brake light switch and brake pedal switch, checking
- Signal from power steering pressure switch, checking
- Cruise Control System (CCS), checking
- Driving range signal, checking
- Data bus, checking
- 28 Ignition/Glow plug system