display AUDI A4 1996 B5 / 1.G APB Engine Oxygen Sensor Control Checking User Guide
[x] Cancel search | Manufacturer: AUDI, Model Year: 1996, Model line: A4, Model: AUDI A4 1996 B5 / 1.GPages: 61, PDF Size: 0.27 MB
Page 14 of 61
24-92
Evaluation display group 33 Display Group
33
Display field:
2/4
Possible cause
Corrective action
Approx. 0.450
V
Open circuit in wire 4 between oxygen sensor and
control module - Check signal wire and activation Page 24
-
122
Open circuit in wire 3 between oxygen sensor and
control module
Oxygen sensor heater faulty
Oxygen sensor faulty- Check oxygen sensor heater Page 24
-114
- Replace oxygen sensor
More than
1.100 V
Short to B+ in wire 4 between oxygen sensor and
control module - Check oxygen sensor wiring, bank 1, sensor
1 Page 24
-123
Less than
0.100 V
Short to Ground (GND) in wire 4 between oxygen
sensor and control module - Check oxygen sensor wiring, bank 2, sensor
1 Page 24
-127
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Page 15 of 61
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Oxygen sensors aging, oxygen sensor
before catalytic converter, checking
Test requirements
Coolant temperature min. 85 C (185 F)
(Display group 004, display field 3)
Test sequence for oxygen sensor 1 before
catalytic converter bank 1
- Connect vehicle diagnostic, testing and
information system VAS5051 or VAG1551 and
select engine electronics control module by
entering address word "01" Page 01
-9. When
doing this the engine must be at idle.
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Page 16 of 61
24-94
Rapid data transfer
HELP
Select function XX
Indicated on display
- Press buttons -0- and -4- to select "Basic Setting" and confirm with -Q-
button.
Basic Setting
Q
Input displa
y group number XXX
Indicated on display
Test requirements - Press -0-, -3- and -4- to select "display group number 034" and confirm
with -Q- button.
Engine runs at 1900 - 2200 RPM
System in Basic Setting 34
1
2
3
4
Indicated on display
- Continue test as soon as display field 4 indicates "Test ON".
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Page 17 of 61
24-95
Note:
This procedure can take a few minutes
Display fields
1 2 3 4
Display field 034: Diagnostic oxygen sensor aging (Bank 1)
Display xxxx/RPM
xxx C
x.x s
Test ON
Indicated Engine speed
(RPM) Exhaust
temperature Period duration
oxygen sensor before catalytic
converter Diagnostic condition
Working
range 0 - 6800
70 - 850 C
0 - 3.0 Seconds
Test OFF
Test ON
B1-S1 OK
B1-S1 not OK
Specification 1900 - 2200/RPM greater than 260
C
0.1 - 1.0 s
B1-S1 OK
Note
If specified value is not obtained Continuation Page
Page 24
-96
Note for display field 2:
Calculated value from engine speed and engine load.
Note for display fields 3 and 4:
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Page 18 of 61
Period duration is the time between two voltage jumps (e.g. rich - lean - rich) and is therefore a measurement of the aging
condition of the oxygen sensor. If the specified time is exceeded, display field 4 will indicate =B1-S1 not OK.
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Page 19 of 61
24-96
Continuation
If specified value in display field 3 or 4 is not
obtained:
- Replace Heated Oxygen Sensor (HO2S) before
Three Way Catalytic Converter Bank 1 -G39.
Test sequence for oxygen sensor 1 before
catalytic converter bank 2
- Connect vehicle diagnostic, testing and
information system VAS5051 or VAG1551 and
select engine electronics control module by
entering address word "01" Page 01
-9. When
doing this the engine must be at idle.
Rapid data transfer
HELP
Select function XX
Indicated on display
- Press buttons -0- and -4- to select "Basic Setting" and confirm with -Q-
button.
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Page 20 of 61
24-97
Basic Settin
g
Q
Input display group number XXX
Indicated on display
Test requirements - Press -0-, -3- and -5- to select "display group number 035" and confirm
with -Q- button.
Engine runs at 1900 - 2200 RPM
System in Basic Setting 35
1
2
3
4
Indicated on display
Note:
This procedure can take a few minutes - Continue test as soon as display field 4 indicates "Test ON".
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Page 21 of 61
24-98
Display fields
1 2 3 4
Display field 035: Diagnostic oxygen sensor aging (Bank 2)
Display xxxx/RPM
xxx C
x.x s
Test ON
Indicated Engine speed
(RPM) Exhaust
temperature Period duration oxygen sensor before
catalytic converter Diagnostic
condition
Working
range 0 - 6800
70 - 850 C
0 - 3.0 Seconds
Test OFF
Test ON
B1-S1 OK
B1-S1 not OK
Specification 1900 - 2200/RPM greater than 260
C
0.1 - 1.0 s
B1-S1 OK
Note
If specified value is not obtained Continuation Page
Page 24
-99
Note for display field 2:
Calculated value from engine speed and engine load.
Note for display fields 3 and 4:
Period duration is the time between two voltage jumps (e.g. rich - lean - rich) and is therefore a measurement of the aging
condition of the oxygen sensor. If the specified time is exceeded, display field 4 will indicate =B2-S1 not OK.
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Page 22 of 61
24-99
Continuation
If specified value in display field 3 or 4 is not
obtained:
- Replace Heated Oxygen Sensor (HO2S) before
Three Way Catalytic Converter Bank 2 -G108.
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Page 25 of 61
24-102
Test conditions
Perform road test and do not erase DTC
memory.
Coolant temperature at least 85 C (185 F)
(Display group 004, display field 3)
- Connect vehicle diagnostic, testing and
information system VAS5051 or VAG1551 scan
tool and select engine electronics control
module by entering address word "01" Page
01
-9 . When doing this the engine must be at
idle.
Rapid data transfer
HELP
Select function XX
Indicated on display
Note:
During the basic setting the Evaporative Emission (EVAP) canister purge
regulator valve -N80 is closed and the A/C compressor is switched off. - Press buttons -0- and -4- to select function "Basic Setting" and confirm
entry with -Q- button.
Basic Settin
g
Input displa
y group number XXX
Indicated on display
- Press buttons -0-, -3- and -4- to select "display group number 034" and
confirm entry with -Q- button.
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pair&id=AUDI.B5.FU04.24.2