Volkswagen New Beetle. Manual - part 1986

DIAGNOSTIC TROUBLE CODE P1141-P1143

DIAGNOSTIC TROUBLE CODE P1151 

DIAGNOSTIC TROUBLE CODE P1152 

SAE-
DTC

DTC text

Corrective action

P1141

Load detection 

implausible value

z

Check Mass Air Flow (MAF) Sensor -G70-. See MASS AIR 

FLOW (MAF) SENSOR, CHECKING . 

z

Check intake air system for leaks (false air). See INTAKE 

SYSTEM FOR LEAKS (FALSE AIR), CHECKING . 

z

Check Throttle Valve Control Module -J338-. See THROTTLE 

VALVE CONTROL MODULE, CHECKING . 

z

Check Throttle Position (TP) Sensor -G79- and Sender -2- for 

accelerator pedal position -G185-. See THROTTLE POSITION 

(TP) SENSOR, CHECKING . 

P1142

Load detection, 

lower limit not 

reached

P1143

Load detection limit 

exceeded

SAE-
DTC

DTC text

Corrective action

P1151

Bank 1, Long Term Fuel 

Trim, Range 1, Leanness 

Lower Limit Exceeded

z

Check fuel pressure regulator and residual pressure. See 

FUEL PRESSURE REGULATOR AND RESIDUAL 

PRESSURE, CHECKING . 

z

Check fuel injectors (Cylinder 1 Fuel Injector -N30- to 

Cylinder 4 Fuel Injector -N33-). See FUEL INJECTORS, 

CHECKING . 

z

Check intake air system for leaks (false air). See INTAKE 

SYSTEM FOR LEAKS (FALSE AIR), CHECKING . 

z

Check Fuel Pump (FP) -G6-. See CHECK FUEL PUMP 

(FP) . 

z

Check exhaust system for proper seal. See EXHAUST 

SYSTEM EMISSION CONTROLS . 

z

Check Secondary Air Injection (AIR) system for proper 

seal. See SECONDARY AIR INJECTION (AIR) 

SYSTEM, CHECKING FOR PROPER SEAL . 

z

Check vacuum lines for leaks 

SAE-
DTC

DTC text

Corrective action

P1152

Bank 1, Long Term Fuel 

Trim, Range 2, Leanness 

Lower Limit Exceeded

z

Check fuel injectors (Cylinder 1 Fuel Injector -N30- to 

Cylinder 4 Fuel Injector -N33-). See FUEL INJECTORS, 

CHECKING . 

z

Check intake air system for leaks (false air). See INTAKE 

SYSTEM FOR LEAKS (FALSE AIR), CHECKING . 

z

Check Fuel Pump (FP) -G6-. See CHECK FUEL PUMP 

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE PERFORMANCE On-Board Diagnostic (OBD), 2.0L Generic Scan Tool - New Beetle

  

DIAGNOSTIC TROUBLE CODE P1165-P1173 

DIAGNOSTIC TROUBLE CODE P1176 

(FP) . 

z

Check exhaust system for proper seal. See EXHAUST 

SYSTEM EMISSION CONTROLS . 

z

Check Secondary Air Injection (AIR) system for proper 

seal. See SECONDARY AIR INJECTION (AIR) 

SYSTEM, CHECKING FOR PROPER SEAL . 

z

Check vacuum lines for leaks 

SAE-
DTC

DTC text

Corrective action

P1165

Bank 1, mixture adaptation, 

area 1, richness limit 

exceeded

z

Check fuel pressure regulator and residual pressure. See 

FUEL PRESSURE REGULATOR AND RESIDUAL 

PRESSURE, CHECKING . 

z

Check fuel injectors (Cylinder 1 Fuel Injector -N30- to 

Cylinder 4 Fuel Injector -N33-). See FUEL INJECTORS, 

CHECKING . 

z

Check Evaporative Emission (EVAP) Canister Purge 

Regulator Valve -N80-. See EVAPORATIVE 

EMISSION (EVAP) CANISTER PURGE 

REGULATOR VALVE, CHECKING . 

P1166

Bank 1, mixture adaptation, 

area 2, richness limit 

exceeded

P1171

Throttle Actuation 

Potentiometer Sign.2, 

Range/Performance

z

Check Throttle Valve Control Module -J338-. See 

THROTTLE VALVE CONTROL MODULE, 

CHECKING . 

P1172

Throttle Actuation 

Potentiometer Sign.2, Signal 

too low

P1173

Throttle Actuation 

Potentiometer Sign.2, Signal 

too high

SAE-
DTC

DTC text

Corrective action

P1176 Bank 1 oxygen sensor 

correction behind cat. 

control limit reached

z

Check Oxygen Sensor (O2S) and oxygen sensor control before 

Three Way Catalytic Converter (TWC). See CHECK OXYGEN 

SENSOR AND OXYGEN SENSOR REGULATION BEFORE 

CATALYTIC CONVERTER . 

z

Check Oxygen Sensor (O2S) and oxygen sensor control behind 

Three Way Catalytic Converter (TWC). See CHECK OXYGEN 

SENSOR AND OXYGEN SENSOR REGULATION BEHIND 

CATALYTIC CONVERTER . 

z

Check intake air system for leaks (false air). See INTAKE 

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE PERFORMANCE On-Board Diagnostic (OBD), 2.0L Generic Scan Tool - New Beetle

  

DIAGNOSTIC TROUBLE CODE P1178-P1186 

DIAGNOSTIC TROUBLE CODE P1196-P1198 

SYSTEM FOR LEAKS (FALSE AIR), CHECKING . 

SAE-
DTC

DTC text

Corrective action

P1178

linear Lambda 

probe / pump current, 

open

z

Check Oxygen Sensor (O2S) and oxygen sensor control before 

Three Way Catalytic Converter (TWC). See CHECK OXYGEN 

SENSOR AND OXYGEN SENSOR REGULATION BEFORE 

CATALYTIC CONVERTER . 

P1179

linear Lambda 

probe / pump current, 

short to ground

P1180

linear Lambda 

probe / pump current, 

short to B+

P1181

linear Lambda 

probe / reference 

voltage, open

P1182

linear Lambda 

probe / reference 

voltage, short to 

ground

P1183

linear Lambda 

probe / reference 

voltage, short to B+

P1184

linear Lambda 

probe / common 

ground wire, open

P1185

linear Lambda 

probe / common 

ground wire, short to 

ground

P1186

linear Lambda 

probe / common 

ground wire, short to 

B+

SAE-
DTC

DTC text

Corrective action

P1196

Bank 1 -sensor 1, 

heating circuit 

electrical 

malfunction

z

Check oxygen sensor heater for Oxygen Sensor (O2S) before Three 

Way Catalytic Converter (TWC). See OXYGEN SENSOR 

HEATER FOR OXYGEN SENSOR BEFORE THREE WAY 

CATALYTIC CONVERTER (TWC), CHECKING . 

P1198

Bank 1 -sensor 2, 

z

Check oxygen sensor heater for Oxygen Sensor (O2S) behind Three 

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE PERFORMANCE On-Board Diagnostic (OBD), 2.0L Generic Scan Tool - New Beetle

  

Fuel and air ratios 

DIAGNOSTIC TROUBLE CODE P1213-P1228 

DIAGNOSTIC TROUBLE CODE P1237-P1240 

DIAGNOSTIC TROUBLE CODE P1255 - P1296 

heating circuit 

electrical 

malfunction

Way Catalytic Converter (TWC). See OXYGEN SENSOR 

HEATER FOR OXYGEN SENSOR BEHIND THREE WAY 

CATALYTIC CONVERTER (TWC), CHECKING . 

SAE-
DTC

DTC text

Corrective action

P1213

Cyl.1-Fuel Injector 

Circ., Short to B+

z

Check fuel injectors (Cylinder 1 Fuel Injector -N30- to Cylinder 

4 Fuel Injector -N33-). See FUEL INJECTORS, CHECKING . 

P1214

Cyl.2-Fuel Injector 

Circ., Short to B+

P1215

Cyl.3-Fuel Injector 

Circ., Short to B+

P1216

Cyl.4-Fuel Injector 

Circ., Short to B+

P1225

Cyl.1-Fuel Injector 

Circ., Short to Ground

P1226

Cyl.2-Fuel Injector 

Circ., Short to Ground

P1227

Cyl.3-Fuel Injector 

Circ., Short to Ground

P1228

Cyl.4-Fuel Injector 

Circ., Short to Ground

SAE-
DTC

DTC text

Corrective action

P1237

Cyl.1-Fuel 

Injector Circ. 

Open

z

Check fuel injectors (Cylinder 1 Fuel Injector -N30- to Cylinder 4 

Fuel Injector - N33-). See FUEL INJECTORS, CHECKING . 

P1238

Cyl.2-Fuel 

Injector Circ. 

Open

P1239

Cyl.3-Fuel 

Injector Circ. 

Open

P1240

Cyl.4-Fuel 

Injector Circ. 

Open

SAE-

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE PERFORMANCE On-Board Diagnostic (OBD), 2.0L Generic Scan Tool - New Beetle