DTCs P0010 to P1130, VAG 16394 to 17538

WARNING: This page is about a different car, the 2006 Audi A4, 2005 Audi A4, 2004 Audi A4, 2003 Audi A4, and 2002 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.

DTC code		DTC text	Corrective action
SAE	VAG
P0010	16394	Camshaft position actuator circuit, Bank 1 Malfunction	Refer to 15 ENGINE - CYLINDER HEAD, VALVETRAIN
P0011	16395	Retarded camshaft adjustment, Bank 1 Specification not achieved
P0012	16396	Advanced camshaft adjustment, Bank 1 Specification not achieved
P0014	16398	Retarded camshaft adjustment, exhaust, Bank 1 Specification not achieved
P0015	16399	Advanced camshaft adjustment, exhaust, Bank 1 Specification not achieved
P0020	16404	Camshaft position actuator circuit, Bank 2 Malfunction

NOTE:

Diagnosis of the camshaft adjustment is influenced by the oil temperature sensor. If the DTC P0196/16580 "Engine Oil Temperature Sensor -G8-, Incorrect signal" is also stored, first check the sensor.
In the case of camshaft adjustment malfunctions, check the oil pressure of the engine.

Refer to 17 ENGINE - LUBRICATION

An entry in the DTC memory may also be made due to mechanical problems: running-in process not yet complete (friction), seized camshaft (perform visual check of camshaft bearings).

DTC code		DTC text	Corrective action
SAE	VAG
P0021	16405	Retarded camshaft adjustment, Bank 2 Specification not achieved	Refer to 15 ENGINE - CYLINDER HEAD, VALVETRAIN
P0022	16406	Advanced camshaft adjustment, Bank 2 Specification not achieved
P0023	16407	Camshaft adjustment, exhaust, Bank 2 Malfunction
P0024	16408	Retarded camshaft adjustment, exhaust, Bank 2 Specification not achieved
P0025	16409	Advanced camshaft adjustment, exhaust, Bank 2 Specification not achieved
P0030	16414	O2 sensor heater circuit, Bank 1, Sensor 1 Open circuit	Check oxygen sensor heating before catalytic converter. Refer to Oxygen sensors before catalytic converter, checking heating
P0031	16415	O2 sensor heater circuit, Bank 1, Sensor 1 Short to Ground
P0032	16416	O2 sensor heater circuit, Bank 1, Sensor 1 Short to positive (B+)

NOTE:

Diagnosis of the camshaft adjustment is influenced by the oil temperature sensor. If the DTC P0196/16580 "Engine oil temperature sensor -G8-, Incorrect signal" is also stored, first check the sensor.
In the case of camshaft adjustment malfunctions, check the oil pressure of the engine.

Refer to 17 ENGINE - LUBRICATION

An entry in the DTC memory may also be made due to mechanical problems: running-in process not yet complete (friction), seized camshaft (perform visual check of camshaft bearings).

DTC code		DTC text	Corrective action
SAE	VAG
P0036	16420	O2 sensor heater circuit, Bank 1, Sensor 2 Open circuit	Check oxygen sensor heating behind catalytic converter. Refer to Oxygen sensors behind catalytic converter, checking heating
P0037	16421	O2 sensor heater circuit, Bank 1, Sensor 2 Short to Ground
P0038	16422	O2 sensor heater circuit, Bank 1, Sensor 2 Short to positive (B+)
P0050	16434	O2 sensor heater circuit, Bank 1, Sensor 1 Malfunction	Check oxygen sensor heating before catalytic converter. Refer to Oxygen sensors before catalytic converter, checking heating
P0051	16435	O2 sensor heater circuit, Bank 1, Sensor 1 Short to Ground
P0052	16436	O2 sensor heater circuit, Bank 1, Sensor 1 Short to positive (B+)
P0056	16440	O2 sensor heater circuit, Bank 1, Sensor 2 Malfunction	Check oxygen sensor heating behind catalytic converter. Refer to Oxygen sensors behind catalytic converter, checking heating
P0057	16441	O2 sensor heater circuit, Bank 1, Sensor 2 Short to Ground
P0058	16442	O2 sensor heater circuit, Bank 1, Sensor 2 Short to positive (B+)

DTC code		DTC text	Corrective action
SAE	VAG
P0101	16485	Mass Air Flow (MAF) Sensor -G70- Incorrect signal	Check Mass Air Flow (MAF) Sensor. Refer to Mass Air Flow (MAF) sensor -G70-, checking
P0102	16486	Mass Air Flow (MAF) Sensor -G70- Signal too small	Check hose setup of crankcase ventilation for secure seating and for proper seal
P0103	16487	Mass Air Flow (MAF) Sensor -G70- Signal too great
P0112	16496	Intake Air Temperature (IAT) Sensor -G42- Signal too small	Check Intake Air Temperature (IAT) Sensor. Refer to Intake Air Temperature (IAT) sensor -G42-, checking .
P0113	16497	Intake Air Temperature (IAT) Sensor -G42- Signal too great
P0116	16500	Engine coolant temperature (ECT) Sensor -G62- Incorrect signal	Test Engine coolant temperature (ECT) Sensor. Refer to Engine Coolant Temperature (ECT) sensor -G62-, checking
P0117	16501	Engine coolant temperature (ECT) Sensor -G62- Signal too small	Check coolant thermostat. Refer to 19 ENGINE - COOLING SYSTEM
P0118	16502	Engine coolant temperature (ECT) Sensor -G62- Signal too great

DTC code		DTC text	Corrective action
SAE	VAG
P0121	16505	Throttle Position (TP) Sensor -G69-. Incorrect signal	Check throttle valve control module. Refer to Throttle valve control module -J338-, checking .
P0122	16506	Throttle Position (TP) Sensor -G69-. Signal too low
P0123	16507	Throttle Position (TP) Sensor -G69-. Signal too high
P0130	16514	O2 sensor circuit, Bank 1, Sensor 1 Malfunction	Check oxygen sensor and oxygen sensor control before catalytic converter. Refer to Oxygen sensors and oxygen sensor control before catalytic converter, checking
P0133	16517	O2 sensor circuit, Bank 1, Sensor 1 Signal too slow	Check oxygen sensor before Three Way catalytic converter and oxygen sensor behind catalytic converter for swapped installation Check oxygen sensor and oxygen sensor control before catalytic converter. Refer to Oxygen sensors and oxygen sensor control before catalytic converter, checking
P0135	16519	O2 sensor heater circuit, Bank 1, Sensor 1 Malfunction	Check oxygen sensor heating before catalytic converter. Refer to Oxygen sensors before catalytic converter, checking heating

DTC code		DTC text	Corrective action
SAE	VAG
P0136	16520	O2 sensor circuit, Bank 1, Sensor 2 Malfunction	Check oxygen sensor and oxygen sensor control behind catalytic converter. Refer to Oxygen sensors and oxygen sensor control behind catalytic converter, checking
P0137	16521	O2 sensor circuit, Bank 1, Sensor 2 Voltage too low
P0138	16522	O2 sensor circuit, Bank 1, Sensor 2 Voltage too high
P0139	16523	O2 sensor circuit, Bank 1, Sensor 2 Signal too slow
P0140	16524	O2 sensor circuit, Bank 1, Sensor 2 No activity detected
P0141	16525	O2 sensor heater circuit, Bank 1, Sensor 2 Malfunction	Check oxygen sensor heating behind catalytic converter. Refer to Oxygen sensors behind catalytic converter, checking heating

DTC code		DTC text	Corrective action
SAE	VAG
P0150	16534	O2 sensor circuit, Bank 2, Sensor 1 Malfunction	Check oxygen sensor and oxygen sensor control before catalytic converter. Refer to Oxygen sensors and oxygen sensor control before catalytic converter, checking
P0151	16535	O2 sensor circuit, Bank 2, Sensor 1 Voltage too low
P0152	16536	O2 sensor circuit, Bank 2, Sensor 1 Voltage too high
P0153	16537	O2 sensor circuit, Bank 2, Sensor 1 Signal too slow	Check oxygen sensor before catalytic converter and oxygen sensor behind catalytic converter for swapped installation
P0154	16538	O2 sensor circuit, Bank 2, Sensor 1 No activity detected	Check oxygen sensor and oxygen sensor control before catalytic converter (TWC). Refer to Oxygen sensors and oxygen sensor control before catalytic converter, checking
P0155	16539	O2 sensor heater circuit, Bank 2, Sensor 1 Malfunction	Check oxygen sensor heating before catalytic converter. Refer to Oxygen sensors before catalytic converter, checking heating

DTC code		DTC text	Corrective action
SAE	VAG
P0156	16540	O2 sensor circuit, Bank 2, Sensor 2 Malfunction	Check oxygen sensor and oxygen sensor control behind catalytic converter. Refer to Oxygen sensors and oxygen sensor control behind catalytic converter, checking
P0157	16541	O2 sensor circuit, Bank 2, Sensor 2 Voltage too low
P0158	16542	O2 sensor circuit, Bank 2, Sensor 2 Voltage too high
P0159	16543	O2 sensor circuit, Bank 2, Sensor 2 Signal too slow
P0160	16544	O2 sensor circuit, Bank 2, Sensor 2 No activity detected
P0161	16545	O2 sensor heater circuit, Bank 2, Sensor 2 Malfunction in heater circuit	Check oxygen sensor heating behind catalytic converter. Refer to Oxygen sensors behind catalytic converter, checking heating

DTC code		DTC text	Corrective action
SAE	VAG
P0170	16554	Fuel trim, Bank 1 Malfunction	Perform road test (fuel in oil) Check for leaks (unmetered air) in intake air system. Refer to Intake air system for leaks (unmetered air), checking . Check hoses (intake manifold changeover valves and secondary air inlet) Check fuel system pressure. Refer to Fuel pressure regulator and holding pressure (vehicles up to 06.03), checking
P0171	16555	Fuel trim, Bank 1 System too lean	Check Mass Air Flow (MAF) Sensor. Refer to Mass Air Flow (MAF) sensor -G70-, checking Check oxygen sensor before catalytic converter. Refer to Oxygen sensors and oxygen sensor control before catalytic converter, checking Check oxygen sensor behind catalytic converter. Refer to Oxygen sensors and oxygen sensor control behind catalytic converter, checking Check secure fit and leak-tightness of crankcase breather hose connections
P0172	16556	Fuel trim, Bank 1 System too rich	Check injectors. Refer to Fuel injectors, checking Checking exhaust system for leaks

DTC code		DTC text	Corrective action
SAE	VAG
P0173	16557	Fuel trim, Bank 2 Malfunction	Perform road test (fuel in oil) Check for leaks (unmetered air) in intake air system. Refer to Intake air system for leaks (unmetered air), checking . Check hoses (intake manifold changeover valves and secondary air inlet) Check fuel system pressure. Refer to Fuel pressure regulator and holding pressure (vehicles up to 06.03), checking
P0174	16558	Fuel trim, Bank 2 System too lean	Check mass air flow sensor. Refer to Mass Air Flow (MAF) sensor -G70-, checking Check oxygen sensor before catalytic converter. Refer to Oxygen sensors and oxygen sensor control before catalytic converter, checking Check oxygen sensor behind catalytic converter. Refer to Oxygen sensors and oxygen sensor control behind catalytic converter, checking Check secure fit and leak-tightness of crankcase breather hose connections
P0175	16559	Fuel trim, Bank 2 System too rich	Check injectors. Refer to Fuel injectors, checking Checking exhaust system for leaks
P0196	16580	Engine oil temperature sensor -G8- Incorrect signal	Check instrument cluster DTC memory Test oil temperature sensor. Refer to Electrical Wiring Diagrams, Troubleshooting & Component Locations

DTC code		DTC text	Corrective action
SAE	VAG
P0201	16585	Cylinder 1 Fuel Injector 1 -N30- Electrical malfunction	Check injectors. Refer to Fuel injectors, checking
P0202	16586	Cylinder 2 Fuel Injector -N31- Electrical malfunction
P0203	16587	Cylinder 3 Fuel Injector -N32- Electrical malfunction
P0204	16588	Cylinder 4 Fuel Injector -N33- Electrical malfunction
P0205	16589	Cylinder 5 Fuel Injector -N83- Electrical malfunction
P0206	16590	Cylinder 6 Fuel Injector -N84- Electrical malfunction
P0219	16603	Maximum engine speed exceeded	Repair mechanical damage

DTC code		DTC text	Corrective action
SAE	VAG
P0221	16605	Angle sensor -2- for throttle drive (power accelerator activation) -G188- Incorrect signal	Test Angle sensor -2- for throttle drive (power accelerator activation). Refer to Angle sensor for throttle valve actuator, checking
P0222	16606	Angle sensor -2- for throttle drive (power accelerator activation) -G188- Signal too small
P0223	16607	Angle sensor -2- for throttle drive (power accelerator activation) -G188- Signal too great
P0230	16614	Fuel Pump (FP) Relay -J17- Malfunction	Check fuel pump relay. Refer to Fuel Pump (FP) relay -J17- and activation, checking
P0261	16645	Cylinder 1 Fuel Injector 1 -N30- Short to Ground	Check injectors. Refer to Fuel injectors, checking
P0262	16646	Cylinder 1 Fuel Injector 1 -N30- Short to positive (B+)
P0264	16648	Cylinder 2 Fuel Injector -N31- Short to Ground
P0265	16649	Cylinder 2 Fuel Injector -N31- Short to positive (B+)

DTC code		DTC text	Corrective action
SAE	VAG
P0267	16651	Cylinder 3 Fuel Injector -N32- Short to ground	Check injectors. Refer to Fuel injectors, checking
P0268	16652	Cylinder 3 Fuel Injector -N32- Short to positive (B+)
P0270	16654	Cylinder 4 Fuel Injector -N33- Short to ground
P0271	16655	Cylinder 4 Fuel Injector -N33- Short to positive (B+)
P0273	16657	Cylinder 5 Fuel Injector -N83- Short to Ground
P0274	16658	Cylinder 4 Fuel Injector -N83- Short to positive (B+)
P0276	16660	Cylinder 6 Fuel Injector -N84- Short to Ground
P0277	16661	Cylinder 4 Fuel Injector -N84- Short to positive (B+)

DTC code		DTC text	Corrective action
SAE	VAG
P0300	16684	Misfire detected	Test misfire detection. Refer to Misfire detection, checking
P0301	16685	Cyl. 1 misfire detected	Refuel vehicle
P0302	16686	Cyl. 2 misfire detected	Check hose setup of crankcase ventilation for secure seating and for proper seal
P0303	16687	Cyl. 3 misfire detected
P0304	16688	Cyl. 4 misfire detected
P0305	16689	Cyl. 5 misfire detected
P0306	16690	Cyl. 6 misfire detected

DTC code		DTC text	Corrective action
SAE	VAG
P0321	16705	Engine Speed (RPM) Sensor -G28- Incorrect signal	Check Engine Speed (RPM) Sensor. Refer to Engine speed (RPM) sensor -G28-, checking .
P0322	16706	Engine Speed (RPM) Sensor -G28- No signal
P0324	16708	Knock control Malfunction	Check knock control. Refer to Knock control stop, checking
P0327	16711	Knock Sensor (KS) 1 -G61- Signal too low	Check Knock sensor 1. Refer to Knock sensors, checking
P0328	16712	Knock sensor 1 -G61- Signal too high
P0332	16716	Knock Sensor (KS) 2 -G66- Signal too low
P0333	16717	Knock Sensor (KS) 2 -G66- Signal too high

DTC code		DTC text	Corrective action
SAE	VAG
P0340	16724	Camshaft Position (CMP) sensor Malfunction	Check CMP sensor. Refer to Camshaft Position (CMP) sensor, checking
P0341	16725	Camshaft Position (CMP) sensor -G40- Incorrect signal
P0342	16726	Camshaft Position (CMP) sensor -G40- Signal too low
P0343	16727	Camshaft Position (CMP) sensor -G40- Signal too high
P0345	16729	Camshaft Position (CMP) sensor -G163- Malfunction
P0346	16730	Camshaft Position (CMP) sensor -G163- Incorrect signal
P0347	16731	Camshaft Position (CMP) sensor -G163- Short to Ground
P0348	16732	Camshaft Position (CMP) sensor -G163- Short to positive (B+)

DTC code		DTC text	Corrective action
SAE	VAG
P0351	16735	Ignition activation cyl. 1 Malfunction	Check ignition coils with output stages. Refer to Ignition coils with output stages, checking .
P0352	16736	Ignition activation cyl. 2 Malfunction
P0353	16737	Ignition activation cyl. 3 Malfunction
P0354	16738	Ignition activation cyl. 4 Malfunction
P0355	16739	Ignition activation cyl. 5 Malfunction
P0356	16740	Ignition activation cyl. 6 Malfunction

DTC code		DTC text	Corrective action
SAE	VAG
P0365	16749	Camshaft Position (CMP) Sensor 3 -G300- Malfunction	Check CMP sensor. Refer to Camshaft Position (CMP) sensor, checking
P0366	16750	Camshaft Position (CMP) Sensor 3 -G300- Incorrect signal
P0367	16751	Camshaft Position (CMP) Sensor 3 -G300- Signal too low
P0368	16752	Camshaft Position (CMP) Sensor 3 -G300- Signal too high
P0390	16774	Camshaft Position (CMP) Sensor 3 -G301- Malfunction
P0391	16775	Camshaft Position (CMP) Sensor 3 -G301- Incorrect signal
P0392	16776	Camshaft Position (CMP) Sensor 3 -G301- Signal too low
P0393	16777	Camshaft Position (CMP) Sensor 3 -G301- Signal too high

DTC code		DTC text	Corrective action
SAE	VAG
P0411	16795	Secondary air system Through flow faulty	Check for leaks (unmetered air) in intake air system. Refer to Intake air system for leaks (unmetered air), checking . Check secondary air system. Refer to 26 EXHAUST SYSTEM, EMISSION CONTROLS
P0413	16797	Secondary Air Injection (AIR) Solenoid Valve -N112- Open circuit	Refer to 26 EXHAUST SYSTEM, EMISSION CONTROLS
P0414	16798	Secondary Air Injection (AIR) Solenoid Valve -N112- Short circuit
P0418	16802	Secondary air pump relay -J299- Malfunction
P0421	16805	Primary catalytic converter, Bank 1 Too inefficient	Replace catalytic converter
P0431	16815	Primary catalytic converter, Bank 2 Too inefficient	Generate readiness code. Refer to Readiness code
P0441	16825	EVAP emission control system Purge flow faulty 1)	Check solenoid valve 1 for Evaporative emission (EVAP) canister purge regulator valve. Refer to Evaporative Emission (EVAP) canister purge regulator valve -N80-, checking

DTC code		DTC text	Corrective action
SAE	VAG
P0442	16826	EVAP emission control system Small leak detected	Check fuel supply and ventilation systems for leaks
P0455	16839	EVAP emission control system Large leak detected	Refer to 20 - FUEL SUPPLY SYSTEM
P0456	16840	EVAP emission control system Pin-hole leak detected
P0491	16875	Secondary air system, Bank 1 Malfunction	. Refer to 26 EXHAUST SYSTEM, EMISSION CONTROLS
P0492	16876	Secondary air system, Bank 2 Malfunction
P0501	16885	Vehicle speed sensor Range/performance malfunction	Check CAN bus. Refer to Data exchange between engine control module and other CAN-control modules, checking
P0506	16890	Idle control system RPM lower than expected	Check throttle valve control module. Refer to Throttle valve control module -J338-, checking Check mass air flow (MAF) sensor. Refer to Mass Air Flow (MAF) sensor -G70-, checking
P0507	16891	Idle control system RPM higher than expected	Perform adaptation of throttle valve control module. Refer to Throttle valve control module -J338-, adaptation Check intake air system (unmetered air) for leaks. Refer to Intake air system for leaks (unmetered air), checking Check hose setup of crankcase ventilation for secure seating and for proper seal

DTC code		DTC text	Corrective action
SAE	VAG
P0513	16897	Wrong Immobilizer code	Adapt electronic immobilizer to engine control module
P0560	16944	System voltage Malfunction	Check supply voltage for control module. Refer to Engine Control Module (ECM) power supply, checking
P0562	16946	System voltage Low voltage
P0563	16947	System voltage High voltage
P0568	16952	Cruise Control Switch -E45- set signal Incorrect signal	Check cruise control system. Refer to Cruise Control System (CCS), testing
P0571	16955	Brake light switch -F-1) Incorrect signal	Check brake light switch and brake pedal switch. Refer to Brake light switch and brake pedal switch, checking
P0600	16984	Serial Comm. link (Data bus drive) Message missing	Check CAN bus. Refer to Data exchange between engine control module and other CAN-control modules, checking

1) The brake pedal switch (cruise control/diesel direct -F47-) is monitored in addition to the brake light switch -F-.

DTC code		DTC text	Corrective action
P0601	16985	Internal control module memory Check sum error	Replace engine control module. Refer to Engine Control Module (ECM) (without metal anti-theft housing), replacing
P0602	16986	Control module programming Error/malfunction	Code engine control module. Refer to Control module, coding
P0604	16988	Internal control module Random Access Memory (RAM) Error	Replace engine control module. Refer to Engine Control Module (ECM) (without metal anti-theft housing), replacing
P0605	16989	Internal control module Read Only Memory (ROM) Test error
P0606	16990	ECM processor fault

DTC code		DTC text	Corrective action
SAE	VAG
P0638	17022	Throttle valve control module -J338- Incorrect signal	Check throttle valve control module. Refer to Throttle valve control module -J338-, checking .
P0642	17026	Knock control Control module malfunction	Replace engine control module. Refer to Engine Control Module (ECM) (without metal anti-theft housing), replacing
P0660	17044	Intake manifold changeover function Malfunction	Test intake manifold changeover. Refer to Intake manifold change-over, checking .
P0661	17045	Intake manifold changeover function Short to Ground
P0662	17046	Intake manifold changeover function Short to positive
P0685	17069	Main relay Motronic engine control module (ECM) power supply relay -J271- Open circuit	Check Motronic engine control module (ECM) power supply relay -J271-. Refer to Motronic Engine Control Module (ECM) power supply relay -J271-, checking
P0686	17070	Main relay Motronic engine control module (ECM) power supply relay -J271- Short to Ground
P0687	17071	Main relay Motronic engine control module (ECM) power supply relay -J271- Short to positive
P0688	17072	Main relay, load circuit Motronic engine control module (ECM) power supply relay -J271- Open circuit

DTC code		DTC text	Corrective action
SAE	VAG
P0704	17088	Clutch vacuum vent valve switch -F36- Incorrect signal	Check clutch pedal switch. Refer to Clutch pedal switch check -F36-, checking .
P1055	17463	Camshaft adjustment, exhaust, Bank 1 Short to positive (B+)	. Refer to 15 ENGINE - CYLINDER HEAD, VALVETRAIN
P1056	17464	Camshaft adjustment, exhaust, Bank 1 Short to Ground
P1057	17465	Camshaft adjustment, exhaust, Bank 1 Open circuit
P1058	17466	Camshaft adjustment, exhaust, Bank 2 Short to positive (B+)
P1059	17467	Camshaft adjustment, exhaust, Bank 2 Short to Ground
P1060	17468	Camshaft adjustment, exhaust, Bank 2 Open circuit

DTC code		DTC text	Corrective action
SAE	VAG
P1102	17510	O2 sensor heating circuit, Bank 1, Sensor 1 Short to positive	Check oxygen sensor heating before catalytic converter. Refer to Oxygen sensors before catalytic converter, checking heating
P1103	17511	O2 sensor heating circuit, Bank 1, Sensor 1 Output too low
P1105	17513	O2 sensor heating circuit, Bank 1, Sensor 2 Short to positive (B+)	Check oxygen sensor heating behind catalytic converter. Refer to Oxygen sensors behind catalytic converter, checking heating
P1107	17515	O2 sensor heating circuit, Bank 2, Sensor 1 Short to positive (B+)	Check oxygen sensor heating before catalytic converter. Refer to Oxygen sensors before catalytic converter, checking heating
P1108	17516	O2 sensor heating circuit, Bank 2, Sensor 1 Output too low
P1110	17518	O2 sensor heating circuit, Bank 2, Sensor 2 Short to positive (B+)	Check oxygen sensor heating behind catalytic converter. Refer to Oxygen sensors behind catalytic converter, checking heating
P1111	17519	O2 Control, Bank 1 System too lean	Check oxygen sensor adaptation values and control Check hose setup of crankcase ventilation for secure seating and for proper seal
P1112	17520	O2 Control, Bank 1 System too rich	Check oxygen sensor and oxygen sensor control before catalytic converter. Refer to Oxygen sensors and oxygen sensor control before catalytic converter, checking

DTC code		DTC text	Corrective action
SAE	VAG
P1113	17521	Bank 1, Sensor 1 Internal resistance too high	First check signal wires for terminal resistances; if there are no terminal resistances: Replace oxygen sensor
P1114	17522	Bank 1, Sensor 2 Internal resistance too high	First check signal wires for terminal resistances; if there are no terminal resistances: Replace oxygen sensor
P1115	17523	O2 sensor heater circuit, Bank 1, Sensor 1 Short to Ground	Check oxygen sensor heating before catalytic converter. Refer to Oxygen sensors before catalytic converter, checking heating
P1116	17524	O2 sensor heater circuit, Bank 1, Sensor 1 Open circuit
P1117	17525	O2 sensor heater circuit, Bank 1, Sensor 2 Short to Ground	Check oxygen sensor heating behind catalytic converter. Refer to Oxygen sensors behind catalytic converter, checking heating
P1118	17526	O2 sensor heater circuit, Bank 1, Sensor 2 Open circuit
P1119	17527	O2 sensor heater circuit, Bank 2, Sensor 1 Short to Ground	Check oxygen sensor heating before catalytic converter. Refer to Oxygen sensors before catalytic converter, checking heating
P1120	17528	O2 sensor heater circuit, Bank 2, Sensor 1 Open circuit

DTC code		DTC text	Corrective action
SAE	VAG
P1121	17529	O2 sensor heater circuit, Bank 2, Sensor 2 Short to Ground	Check oxygen sensor heating behind catalytic converter. Refer to Oxygen sensors behind catalytic converter, checking heating
P1122	17530	O2 sensor heater circuit, Bank 2, Sensor 2 Open circuit
P1127	17535	Long term fuel trim (mult.), Bank 1 System too rich	Perform road test (fuel in oil) Check for leaks (unmetered air) in intake air system. Refer to Intake air system for leaks (unmetered air), checking .
P1128	17536	Long term fuel trim (mult.), Bank 1 System too lean	Check hoses (intake manifold changeover valves, secondary air system and crankcase breather) Check fuel system pressure. Refer to Fuel pressure regulator and holding pressure (vehicles up to 06.03), checking Check mass air flow (MAF) sensor. Refer to Mass Air Flow (MAF) sensor -G70-, checking
P1129	17537	Long term fuel trim (mult.), Bank 2 System too rich	Check oxygen sensor before catalytic converter. Refer to Oxygen sensors and oxygen sensor control before catalytic converter, checking Check oxygen sensor behind catalytic converter. Refer to Oxygen sensors and oxygen sensor control behind catalytic converter, checking
P1130	17538	Long term fuel trim (mult.), Bank 2 System too lean	Check injectors. Refer to Fuel injectors, checking Checking exhaust system for leaks Check crankcase breather pressure control valve

NOTE: Mult. = multiplicative means that the malfunction occurs throughout the entire speed range and load range.