Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSVOLKSWAGEN2002GOLF GLS, 2.0 K, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 91 (2.8L & 3.2L - GENERIC SCAN TOOL, ENGINE CODE(S): AFP, BDF, BJS [A4 PLATFORM] (28 IGNITION/GLOW PLUG SYSTEM - ST GENERIC SCAN TOOL))ST GENERIC SCAN TOOLDTC TABLESSAE P1XXX-DTCS

2002 Volkswagen Golf GLS, 2.0 K, Standard

SAE P1xxx-DTCs

2002 Volkswagen Golf GLS, 2.0 K, StandardSECTION SAE P1xxx-DTCs

WARNING: This page does not describe the selected car, but rather 14 other vehicles, including the 2005 Volkswagen GTI, 2004 Volkswagen R32, 2004 Volkswagen Jetta, 2004 Volkswagen GTI, and 2003 Volkswagen Jetta. However, it is still accessible from the selected car via links, so may be relevant.

Fuel and air ratios

SAE- DTC	DTC text	Corrective action
P1102	HO2S Heater Control Circuit (Bank 1 Sensor 1) High	Check oxygen sensor heater for oxygen sensors before catalytic converter. Refer to Oxygen sensor heater for oxygen sensors before catalytic converter, checking
P1103	Bank1-probe1, heating circuit output too low	Check oxygen sensor and oxygen sensor control before catalytic converter. Refer to Oxygen sensors and oxygen sensor regulation before catalytic converter, checking
P1105	HO2S Heater Control Circuit (Bank 1 Sensor 2) High	Check oxygen sensor heater for oxygen sensors behind catalytic converter. Refer to Oxygen sensor heater for oxygen sensors behind Three Way Catalytic Converter (TWC), checking

SAE- DTC	DTC text	Corrective action
P1115	HO2S Heater Control Circuit (Bank 1 Sensor 1) Low	Check oxygen sensor heater for oxygen sensors before catalytic converter. Refer to Oxygen sensor heater for oxygen sensors before catalytic converter, checking
P1116	HO2S Heater Control Circuit (Bank 1 Sensor 1)
P1117	HO2S Heater Control Circuit (Bank 1 Sensor 2) Low	Check oxygen sensor heater for oxygen sensors behind catalytic converter. Refer to Oxygen sensor heater for oxygen sensors behind Three Way Catalytic Converter (TWC), checking
P1118	HO2S Heater Control Circuit (Bank 1 Sensor 2)
P1127	Bank1, mixture adaptation (mult.) system too rich	Check fuel pressure regulator and residual pressure. Refer to Fuel pressure regulator and residual pressure, checking Check Cylinder 1 Fuel Injector -N30- to Cylinder 4 Fuel Injector -N33-, Cylinder 5 Fuel Injector -N83-, Cylinder 6 Fuel Injector -N84-. Refer to Fuel injectors, checking Check Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80-. Refer to Evaporative Emission (EVAP) canister purge regulator valve 1, checking Vehicles with engine code BJS: Check Evaporative Emission (EVAP) Canister Purge Solenoid Valve -N115-. Refer to Evaporative Emission (EVAP) canister purge solenoid valve 2 (vehicles with engine code BJS), checking

SAE-
DTC

DTC text

Corrective action

P1128

Bank1, mixture adaptation (mult.) system too lean

Check fuel pressure regulator and residual pressure. Refer to Fuel pressure regulator and residual pressure, checking

Check Cylinder 1 Fuel Injector -N30- to Cylinder 4 Fuel Injector -N33-, Cylinder 5 Fuel Injector -N83-, Cylinder 6 Fuel Injector -N84-. Refer to Fuel injectors, checking

Check intake system for leaks (false air). Refer to Intake system, checking for leaks (false air)

Check Fuel Pump (FP) -G6-. Refer to Fuel Pump (FP), checking

Check exhaust system for proper seal. Refer to Exhaust system components, removing and installing , removing and installing exhaust system components

Check Secondary Air Injection (AIR) system for proper seal. Refer to Secondary Air Injection (AIR) system, checking for proper seal

Check vacuum lines for leaks

SAE-
DTC

DTC text

Corrective action

P1136

Bank1, mixture adaptation (add.) system too lean

Check fuel pressure regulator and residual pressure. Refer to Fuel pressure regulator and residual pressure, checking

Check intake system for leaks (false air). Refer to Intake system, checking for leaks (false air)

Check Fuel Pump (FP) -G6-. Refer to Fuel Pump (FP), checking

Check exhaust system for proper seal. Refer to Exhaust system components, removing and installing , removing and installing exhaust system components

Check Secondary Air Injection (AIR) system for proper seal. Refer to Secondary Air Injection (AIR) system, checking for proper seal

Check vacuum lines for leaks

SAE- DTC	DTC text	Corrective action
P1137	Bank 1, mixture adaptation (add.) system too rich	Check fuel pressure regulator and residual pressure. Refer to Fuel pressure regulator and residual pressure, checking Check Cylinder 1 Fuel Injector -N30- to Cylinder 4 Fuel Injector -N33-, Cylinder 5 Fuel Injector -N83-, Cylinder 6 Fuel Injector -N84-. Refer to Fuel injectors, checking Check Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80-. Refer to Evaporative Emission (EVAP) canister purge regulator valve 1, checking Vehicles with engine code BJS: Check Evaporative Emission (EVAP) Canister Purge Solenoid Valve -N115-. Refer to Evaporative Emission (EVAP) canister purge solenoid valve 2 (vehicles with engine code BJS), checking
P1141	Load detection implausible value	Check Mass Air Flow (MAF) Sensor -G70-. Refer to Mass Air Flow (MAF) sensor, checking
P1142	Load detection value below lower limit	Check intake system for leaks (false air). Refer to Intake system, checking for leaks (false air)
P1143	Load detection value above upper limit	Check Throttle Valve Control Module -J338-. Refer to Throttle valve control module, checking Check Throttle Position (TP) Sensor -G79- and Sender 2 for accelerator pedal position -G185-. Refer to Throttle Position (TP) sensor, checking

NOTE: add. = additive, means that malfunction is only valid at closed throttle (idle)

SAE-
DTC

DTC text

Corrective action

P1151

Long Term Fuel Trim Additive Air., Area 1 System too lean

Check fuel pressure regulator and residual pressure. Refer to Fuel pressure regulator and residual pressure, checking

Check Cylinder 1 Fuel Injector -N30- to Cylinder 4 Fuel Injector -N33-, Cylinder 5 Fuel Injector -N83-, Cylinder 6 Fuel Injector -N84-. Refer to Fuel injectors, checking

Check intake system for leaks (false air). Refer to Intake system, checking for leaks (false air)

Check Fuel Pump (FP) -G6-. Refer to Fuel Pump (FP), checking

Check exhaust system for proper seal. Refer to Exhaust system components, removing and installing , removing and installing exhaust system components

Check Secondary Air Injection (AIR) system for proper seal. Refer to Secondary Air Injection (AIR) system, checking for proper seal

Check vacuum lines for leaks

SAE- DTC	DTC text	Corrective action
P1152	Long Term Fuel Trim Additive Air., Area 2 System too lean	Check Cylinder 1 Fuel Injector -N30- to Cylinder 4 Fuel Injector -N33-, Cylinder 5 Fuel Injector -N83-, Cylinder 6 Fuel Injector -N84-. Refer to Fuel injectors, checking Check intake system for leaks (false air). Refer to Intake system, checking for leaks (false air) Check Fuel Pump (FP) -G6-. Refer to Fuel Pump (FP), checking Check exhaust system for proper seal. Refer to Exhaust system components, removing and installing , removing and installing exhaust system components Check Secondary Air Injection (AIR) system for proper seal. Refer to Secondary Air Injection (AIR) system, checking for proper seal Check vacuum lines for leaks
P1165	Long Term Fuel Trim Additive Air., Area 1 System too rich	Check fuel pressure regulator and residual pressure. Refer to Fuel pressure regulator and residual pressure, checking
P1166	Long Term Fuel Trim Additive Air., Area 2 System too rich	Check Cylinder 1 Fuel Injector -N30- to Cylinder 4 Fuel Injector -N33-, Cylinder 5 Fuel Injector -N83-, Cylinder 6 Fuel Injector -N84-. Refer to Fuel injectors, checking Check Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80-. Refer to Evaporative Emission (EVAP) canister purge regulator valve 1, checking Vehicles with engine code BJS: Check Evaporative Emission (EVAP) Canister Purge Solenoid Valve -N115-. Refer to Evaporative Emission (EVAP) canister purge solenoid valve 2 (vehicles with engine code BJS), checking

SAE- DTC	DTC text	Corrective action
P1171	Angle sender 2 for throttle valve drive -G188 implausible signal	Check Throttle Valve Control Module -J338-. Refer to Throttle valve control module, checking
P1172	Angle sender 2 for throttle valve drive -G188 signal too low
P1173	Angle sender 2 for throttle valve drive -G188 signal too high
P1176	Bank 1, Lambda correction downstream of catalyst control limit reached	Check oxygen sensors and oxygen sensor control before catalytic converter. Refer to Oxygen sensors and oxygen sensor regulation before catalytic converter, checking
P1177	Bank 2, lambda correction downstream of catalyst control limit reached	Check oxygen sensors and oxygen sensor control behind catalytic converter. Refer to Oxygen sensors and oxygen sensor regulation behind catalytic converter, checking Check intake system for leaks (false air). Refer to Intake system, checking for leaks (false air)
P1196	O2 Sensor Heater Circuit, Bank 1- Sensor 1 Electrical Fault	Check oxygen sensor heater for oxygen sensors before catalytic converter. Refer to Oxygen sensor heater for oxygen sensors before catalytic converter, checking
P1198	O2 Sensor Heater Circuit, Bank 1-Sensor 2 Electrical Fault	Check oxygen sensor heater for oxygen sensors behind catalytic converter. Refer to Oxygen sensor heater for oxygen sensors behind Three Way Catalytic Converter (TWC), checking

Fuel and air ratios

SAE- DTC	DTC text	Corrective action
P1213	Cylinder 1 Injector Circuit High	Check Cylinder 1 Fuel Injector -N30- to Cylinder 4 Fuel Injector -N33-, Cylinder 5 Fuel Injector -N83-, Cylinder 6 Fuel Injector -N84-. Refer to Fuel injectors, checking
P1214	Cylinder 2 Injector Circuit High
P1215	Cylinder 3 Injector Circuit High
P1216	Cylinder 4 Injector Circuit High
P1217	Cylinder 5 Fuel Injector -N83- Short circuit to B+
P1218	Cylinder 6 Fuel Injector -N84- Short circuit to B+
P1225	Cylinder 1 Injector Circuit Low
P1226	Cylinder 2 Injector Circuit Low
P1227	Cylinder 3 Injector Circuit Low

SAE- DTC	DTC text	Corrective action
P1228	Cylinder 4 Injector Circuit Low	Check Cylinder 1 Fuel Injector -N30- to Cylinder 4 Fuel Injector -N33-, Cylinder 5 Fuel Injector -N83-, Cylinder 6 Fuel Injector -N84-. Refer to Fuel injectors, checking
P1229	Cylinder 5 Fuel Injector -N83- Short circuit to Ground (GND)
P1230	Cylinder 6 Fuel Injector -N84- Short circuit to Ground (GND)
P1237	Cylinder 1 injector -N30 open circuit
P1238	Cylinder 2 injector -N31 open circuit
P1239	Cylinder 3 injector -N32 open circuit
P1240	Cylinder 4 injector -N33 open circuit
P1241	Cylinder 5 injector -N83 open circuit
P1242	Cylinder 6 injector -N84 open circuit
P1296	Malfunction in cooling system	Check Engine Coolant Temperature (ECT) Sensor -G62-. Refer to Engine Coolant Temperature (ECT) sensor, checking

Ignition system

SAE- DTC	DTC text	Corrective action
P1335	Engine torque monitoring 2 Value above upper control limit	Check Mass Air Flow (MAF) Sensor -G70-. Refer to Mass Air Flow (MAF) sensor, checking Check Engine Coolant Temperature (ECT) Sensor -G62-. Refer to Engine Coolant Temperature (ECT) sensor, checking Check Intake Air Temperature (IAT) Sensor -G42-. Refer to Intake Air Temperature (IAT) sensor, checking Check intake system for leaks (false air). Refer to Intake system, checking for leaks (false air)
P1336	Engine torque monitoring value above upper control limit
P1340	Camshaft Position Sensor-G40, Engine Speed Sensor-G28 incorrect allocation	Check Camshaft Position (CMP) Sensor -G40-. Refer to Camshaft Position (CMP) sensor, checking Check Engine Speed (RPM) Sensor -G28-. Refer to Engine speed (RPM) sensor, checking
P1341	Ignition Coil Power Output Stage 1 Short circuit to Ground (GND)	Check Ignition Coil -N152-. Refer to Ignition coil (vehicles with engine code AFP), checking
P1343	Ignition Coil Power Output Stage 2 short circuit to Ground (GND)
P1345	Ignition Coil Power Output Stage 3 short circuit to Ground (GND)

SAE- DTC	DTC text	Corrective action
P1387	Internal Control Module Memory Check Sum Error	Replace Motronic Engine Control Module (ECM) -J220-. Refer to Engine Control Module (ECM), replacing
P1388	Internal Control Module Memory Check Sum Error
P1393	Ignition output 1 electrical fault in circuit	Check Ignition Coil -N152-. Refer to Ignition coil (vehicles with engine code AFP), checking
P1394	Ignition output 2 electrical fault in circuit
P1395	Ignition output 3 electrical fault in circuit

Additional emission regulations

SAE- DTC	DTC text	Corrective action
P1410	Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80- Short circuit to B+	Check Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80-. Refer to Evaporative Emission (EVAP) canister purge regulator valve 1, checking
P1421	Secondary Air Injection (AIR) Solenoid Valve -N112- Short circuit to Ground (GND)	Check Secondary Air Injection (AIR) Solenoid Valve -N112-. Refer to Secondary Air Injection (AIR) valve, checking
P1422	Secondary Air Injection (AIR) Solenoid Valve -N112- Short circuit to B+
P1424	Bank 1, secondary air system leak detected	Check Secondary Air Injection (AIR) system for proper seal. Refer to Secondary Air Injection (AIR) system, checking for proper seal

SAE- DTC	DTC text	Corrective action
P1425	Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80- Short circuit to Ground (GND)	Check Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80-. Refer to Evaporative Emission (EVAP) canister purge regulator valve 1, checking
P1426	Evaporative Emission System Pure Control Valve Circuit Open
P1432	Secondary Air Injection System Switching Valve (A) Circuit Open	Check Secondary Air Injection (AIR) Solenoid Valve -N112-. Refer to Secondary Air Injection (AIR) valve, checking Check activation of Secondary Air Injection (AIR) Pump Relay -J299-: Refer to Electrical Wiring Diagrams, Troubleshooting & Component Locations
P1433	Secondary air pump relay-J299 open circuit
P1434	Secondary Air Injection (AIR) Pump Relay -J299- Short circuit to B+
P1435	Secondary Air Injection (AIR) Pump Relay -J299- Short circuit to Ground (GND)

SAE- DTC	DTC text	Corrective action
P1471	EVAP Emission Control LPD Circuit Short circuit to B+	Check Leak Detection Pump (LDP) -V144-. Refer to Leak Detection Pump (LDP), checking
P1472	EVAP Emission Control LPD Circuit Short circuit to Ground (GND)
P1473	Leak diagnosis pump - tank breather system open circuit
P1475	Leak diagnosis pump - tank breather system malfunction/no signal
P1476	Leak diagnosis pump - tank breather system malfunction/vacuum to low
P1490	Evaporative Emission (EVAP) Canister Purge Regulator Valve 2 -N333- Short circuit to Ground (GND)	Check Evaporative Emission (EVAP) Canister Purge Solenoid Valve -N115-. Refer to Evaporative Emission (EVAP) canister purge solenoid valve 2 (vehicles with engine code BJS), checking
P1491	Evaporative Emission (EVAP) Canister Purge Regulator Valve 2 -N333- Open circuit

Speed and idle control

SAE- DTC	DTC text	Corrective action
P1501	Fuel Pump (FP) Relays -J17- Short circuit to Ground (GND)	Check activation of Fuel Pump (FP) Relay -J17- according to wiring diagram: Refer to Electrical Wiring Diagrams, Troubleshooting & Component Locations
P1502	Fuel Pump (FP) Relay -J17- Short circuit to B+
P1541	Fuel pump relay -J17 open circuit
P1542	Angle sender 1 for throttle valve drive -G187 implausible signal	Check Throttle Valve Control Module -J338-. Refer to Throttle valve control module, checking
P1543	Angle sender 1 for throttle valve drive -G187 signal too low
P1544	Angle sender 1 for throttle valve drive -G187 signal too high
P1545	Throttle valve control system malfunction
P1558	Throttle valve drive -G186 electrical fault in circuit
P1559	Throttle valve control part-J338- Fault in basic settings
P1565	Throttle valve control part-J338- lower stop not reached

Control module and output signals

SAE- DTC	DTC text	Corrective action
P1603	Internal Control Module Memory Check Sum Error	Replace Motronic Engine Control Module (ECM) -J220-. Refer to Engine Control Module (ECM), replacing
P1612	Engine control module incorrect coding	Code Motronic Engine Control Module (ECM) -J220-: Refer to Diagnostic tester VAS 5051; Guided Fault Finding; Vehicle system test or VAS 5052; Vehicle Self-Diagnosis
P1624	Requirement - fault lamp on active	Erase DTC memory. Refer to Diagnostic mode 4: Reset/erase diagnostic data ST-30, Diagnostic mode 4: Reset/erase diagnostic data
P1626	Data-bus-drivetrain missing message from transmission control module	Check terminal resistance for CAN-Bus. Refer to Terminal resistance for CAN-Bus, checking
P1630	Throttle/Pedal Position Sensor/Switch -C- Circuit Low	Check Throttle Position (TP) Sensor -G79- and Sender 2 for accelerator pedal position -G185-. Refer to Throttle Position (TP) sensor, checking
P1631	Throttle/Pedal Position Sensor/Switch -C- Circuit High
P1633	Accelerator pedal position sender 2 -G185 signal too low
P1634	Accelerator pedal position sender 2 -G185 signal too high
P1635	Data-bus-drivetrain missing message from A/C control module	Check terminal resistance for CAN-Bus. Refer to Terminal resistance for CAN-Bus, checking

SAE- DTC	DTC text	Corrective action
P1639	Throttle/Pedal Position Sensor/Switch -C- Circuit Range/Performance	Check Throttle Position (TP) Sensor -G79- and Sender 2 for accelerator pedal position -G185-. Refer to Throttle Position (TP) sensor, checking
P1640	Internal Control Module Memory Check Sum Error	Replace Motronic Engine Control Module (ECM) -J220-. Refer to Engine Control Module (ECM), replacing
P1647	Checking coding/versions of control modules in CAN-bus	Code Motronic Engine Control Module (ECM) -J220-: Refer to Diagnostic tester VAS 5051; Guided Fault Finding; Vehicle system test or VAS 5052; Vehicle Self-Diagnosis
P1648	Data-Bus-driving gear faulty	Check terminal resistance for CAN-Bus. Refer to Terminal resistance for CAN-Bus, checking
P1650	Data-bus-drivetrain missing message from instrument cluster
P1691	Warning lamp for self-diagnosis -K83 open circuit	Check Malfunction Indicator Lamp (MIL) -K83-. Refer to Exhaust Malfunction Indicator Lamp (MIL) in instrument cluster (vehicles with engine codes AFP and BDF), checking ST-13
P1692	Malfunction Indication Light -K83- Short circuit to Ground (GND)
P1693	Malfunction Indicator Lamp (MIL) -K83- Short circuit to B+

Transmission

SAE-
DTC

DTC text

Corrective action

P1778

Valve 7 electrical fault in circuit

Check solenoid valves. Refer to Solenoid valves in valve body, checking , checking solenoid valves in valve body

P1780

Torque retraction malfunctioning

Vehicles with 01M transmission:

Check ATF level for transmission 01M: Refer to 37 AUTOMATIC TRANSMISSION - CONTROLS, HOUSING

Vehicles with 09A transmission:

Check ATF level for transmission 09A: Refer to 37 - AUTOMATIC TRANSMISSION - CONTROLS, HOUSING

Transmission

SAE- DTC	DTC text	Corrective action
P1823	Pressure control valve 3 -N217 electrical fault in circuit	Check solenoid valves. Refer to Solenoid valves in valve body, checking , checking solenoid valves in valve body
P1828	Pressure control valve 4 -N218 electrical fault in circuit
P1850	Data-bus-drivetrain missing message from engine control module	Check terminal resistance for CAN-Bus. Refer to Terminal resistance for CAN-Bus, checking
P1854	Data-Bus-driving gear Hardware faulty
P1855	Data-Bus-driving gear Software version monitoring
P1857	Load signal fault signal from engine control module

SAE- DTC	DTC text	Corrective action
P1861	Throttle Position (TP) Sensor -G79- Malfunction indication from Engine Control Module (ECM)	Check Throttle Position (TP) Sensor -G79- and Sender 2 for accelerator pedal position -G185-. Refer to Throttle Position (TP) sensor, checking
P1866	Data-Bus-driving gear missing messages	Check terminal resistance for CAN-Bus. Refer to Terminal resistance for CAN-Bus, checking

Control modules, input and output signals

SAE- DTC	DTC text	Corrective action
P1912	Brake Booster Pressure Sensor -G294- Short circuit to B+	Check Brake Booster Pressure Sensor -G294-: Refer to 01 ON BOARD DIAGNOSTIC (OBD)
P1913	Brake Booster Pressure Sensor -G294- Short circuit to Ground (GND)
P1914	Pressure sensor for brake booster -G294- Implausible signal

RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.