Volkswagen Passat 1995 Official Factory Repair Manual page 1582

Diagnostic Trouble Code (DTC) tables:
SAE P1xxx-DTCs
Fuel and air ratios
SAE- DTC text
DTC
P1102 HO2S Heater Control Circuit
(Bank 1 Sensor 1) High
P1103 Bank 1-probe 1, heating
circuit output too low
P1105 HO2S Heater Control Circuit
(Bank 1 Sensor 2) High
P1111 Oxygen sensor control (Bank
1) System too lean
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Corrective action
- Check oxygen sensor heater for oxygen sensor
before catalytic converter
- Check oxygen sensor and oxygen sensor
control before catalytic converter
- Check oxygen sensor heater for oxygen sensor
behind catalytic converter
- Check fuel pressure regulator and residual
pressure Page 24-78
- Check Cylinder 1 Fuel Injector -N30- to Cylinder
4 Fuel Injector -N33-
- Check Fuel Pump (FP) -G6-
- Check intake system for leaks (false air)
Page 24-84
- Check vacuum lines for leaks
Page 20 of 41
Page 24-25
Page 24-87
Page 24-28
Page 24-65
Page 20-15
6/12/2004
ST-75