Volkswagen Passat 1995 Official Factory Repair Manual page 1540

Diagnostic mode, selecting
http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Goto&type=repair&id=VW...
Evaluation test-ID 08 Bank 1, sensor 1 and 2:
Maximum voltage at sensor for test cycle
Oxygen sensor
min.
Bank 1 sensor 1
Bank 1 sensor 2
If the specified value is not reached:
Oxygen sensor not ready for operation
Oxygen sensor heater faulty:
- Check oxygen sensor heater for Oxygen Sensor
(O2S) before Three Way Catalytic Converter
(TWC) Page 24-25
- Check oxygen sensor heater for Oxygen Sensor
(O2S) behind Three Way Catalytic Converter
(TWC) Page 24-28
Short circuit to Ground (GND) or open circuit in
wiring in oxygen sensor or in wire:
- Check Oxygen Sensor (O2S) and oxygen
sensor control before Three Way Catalytic
Converter (TWC)
- Check Oxygen Sensor (O2S) and oxygen
sensor control behind Three Way Catalytic
Converter (TWC)
Page 20 of 35
Specified value:
max.
0.500 0.950 V
V
0.500 0.950 V
V
.
.
Page 24-87 .
Page 24-92 .
ST-33
6/12/2004