Volkswagen Passat 1995 Official Factory Repair Manual page 1838

VAG 1551 Scan Tool (ST), connecting and selecting 'CARB/OBD II' address word 33
Mode 45 Test ID 2 Module 10
B1-S1
Mode 45 Test ID 7 Module 10
B1-S1 0.148V x.xxV
http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Goto&type=repair&id=VW.B4.FU07.01.3
0.445V
0.40V
Display will appear as shown: Test ID 02
Lean/rich threshold voltage: constant value 0.445
volts
If constant value is not obtained, the HO2S is
faulty
- Press
button.
For the following HO2S signals three values are
always displayed:
1st value = Minimum value
2nd value = Actual value
3rd value = Maximum value
Note:
The displayed Min. and Max. values are constant and
do not change. The actual value is displayed as a
constant. It will only change when during the test the
HO2S supplies a greater or smaller signal.
Display will appear as shown: Test ID 07
Minimum test voltage
If the actual value is below 0.148 volts, there is a
short to ground.
When the actual value exceeds 0.4 volts, the
malfunction could be the HO2S is not at working
temperature, sensor heating is faulty, wiring open
circuit to HO2S or a short circuit to positive (B+).
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12/6/2004