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01-82
X
X
X
X
X
X
X
X
Notes for display group 086, display field 1
Diagnostic of catalytic converter
Indication 0 = test was performed
Indication 1 = test was not performed (generate readiness code Page 01
-84
)
Indication always 0
EVAP system
Indication 0 = test was performed
Indication 1 = test was not performed (generate readiness code Page 01
-84
)
Secondary air system
Indication 0 = test was performed
Indication 1 = test was not performed (generate readiness code Page 01
-84
)
Indication always 0
Oxygen sensors
Indication 0 = test was performed
Indication 1 = test was not performed (generate readiness code Page 01
-84
)
Oxygen sensor heating
Indication 0 = test was performed
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11/22/2002 htt
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Page 23 of 43
01-95
Display fields
1 2 3 4
Display group 030: Oxygen sensor status
Display
X X X
X X X
Indicated
Oxygen sensor status, bank 1, sensor 1
Oxygen sensor status, bank 2, sensor 1
Functional range
0 = off
1 = on 0 = off
1 = on
Specified value
1 1 1
1 1 0
Significance of 3 digit indications in display group 030 X
X
X
Display fields 1 and 2
X Oxygen sensor control: 0= not active; 1 = active
X Operational readiness of oxygen sensor: 0= not active; 1 = active
X Condition of oxygen sensor heater: 0= not active; 1 = active
Notes:
The first position of the 3 digit indication (heating) fluctuates between 0 and 1 at certain operation points.
Oxygen sensor control of oxygen sensor behind catalytic converter (bank 1, sensor 2) is not active without engine load,
meaning that the third position of the 3-digit display is 0.
-
Do not start test until indication in display field 1
Pa
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Work step 6: Diagnostic of oxygen sensor
aging before catalytic converter
Test requirement:
Engine continues to run at 2600 RPM.
Display on VAS5051:
Note:
A few minutes may pass until a diagnostic result is reached. -
Press button 4 times to change into display group 034.- Check specified value in display field -4-.
Pa
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Page 26 of 43
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Display fields
1 2 3 4
Display group 034: Oxygen sensor aging diagnostic, oxygen sensor before catalytic converter (bank 1)
Display xxxx/min
xxx C
x.x
---
Indicated Engine speed
(RPM) Exhaust
temperature Dynamic
factor Diagnostic condition
Functional
range Test OFF
Test ON
B1-S2 OK
B1-S2 not OK
Specified
value 2600 RPM larger than 350
C
0.5 to 2.5 B1-S2 OK
Note
If "B1-S1 not OK" is displayed: Check DTC
memory Page 01
-12
.
If specified value "B1-S1 OK" is obtained:
- Perform next work step.
Pa
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Page 27 of 43
01-98
Work step 7: Diagnostic of operational
readiness of oxygen sensor behind catalytic
converter
Test requirement:
Engine continues to run at 2600 RPM.
Display on VAS5051:
-
Press button 2 times to change into display group 036.- Check specified value in display field -2-.
Pa
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Page 28 of 43
01-99
Display fields
1 2 3 4
Display group 036: Operational readiness of oxygen sensor behind catalytic converter (bank 1)
Display x.xxx V
---
Indicated Oxygen sensor voltage Bank 2,
sensor 1 Diagnostic condition
Functional
range
Test OFF
Test ON
B1-S2 OK
B1-S2 not OK
Specified value 0.100 to 0.950 volts
B1-S2 OK
Note
If "B1-S2 not OK" is displayed: Check DTC memory
Page 01
-12
If specified value B1-S2 OK" is obtained:
- Perform next work step.
Pa
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Page 31 of 43
01-102
Work step 9: Diagnostic of oxygen sensor
aging behind catalytic converter
Test requirement:
Engine continues to run at 2600 RPM.
Display on VAS5051:
-
Click on - button
Display on VAS5051:
1 - Enter display group Max. input value = 255
- Select function "043" in button field -2- for "display group number 043"
and press Q button to confirm input.
Pa
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Page 33 of 43
01-104
Display fields
1 2 3 4
Display group 043: Oxygen sensor aging diagnostic, oxygen sensor behind catalytic converter (bank 1)
Display xxxx/min
xxx C
x.xxx V
---
Indicated Engine speed
(RPM) Exhaust
temperature Oxygen sensor voltage
Bank 2, sensor 1 Diagnostic condition
Functional
range Test OFF
Test ON
B1-S2 OK
B1-S2 not OK
Specified
value 2600 RPM larger than 350
C
0.100 to 0.950 volts B1-S2 OK
Note
If "B1-S2 not OK" is displayed: Check
DTC memory Page 01
-12
If specified value B1-S2 OK" is obtained:
- Perform next work step.
Pa
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