Volkswagen Passat 1995 Official Factory Repair Manual page 1837

VAG 1551 Scan Tool (ST), connecting and selecting 'CARB/OBD II' address word 33
Mode 45 Test ID 1 Module 10
B1-S1
http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Goto&type=repair&id=VW.B4.FU07.01.3
0.445V
Oxygen sensor signal (B1-S1), mode 5
Note:
When a Heated Oxygen Sensor (HO2S)
malfunction is stored, use mode 5 to check the
HO2S signal output, to see whether the HO2S
before three way catalytic converter is within
specification, or whether another malfunction is
present, e.g. the HO2S after three way catalytic
converter is causing an O2S control malfunction.
The points 01 to 09 represent:
01 - Rich/lean threshold voltage (constant value)
02 - Lean/rich threshold voltage (constant value)
03 - Lower voltage for calculating switching period
04 - Upper voltage for calculating switching period
05 - Calculated rich/lean switching time
06 - Calculated lean/rich switching time
07 - Minimum test voltage
08 - Maximum test voltage
09 - Time between threshold voltages
- Press button -5- to select mode 5 output oxygen
sensor signal.
Display will appear as shown: Test ID 01
Rich/lean threshold voltage: Standard value 0.445
volts
- Press
button.
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12/6/2004