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-.
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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 29 of 43
01-100
Work step 8: Diagnostic of oxygen sensor
control system
Test requirement:
Engine continues to run at 2600 RPM.
Display on VAS5051:
-
Press button to change into display group 037.- Check specified value in display field -4-.
Pa
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Page 30 of 43
01-101
Display fields
1 2 3 4
Display group 037: Diagnostic of oxygen sensor control system (Bank 1)
Display xxx % x.xxx V x.xx
---
Indicated Load Oxygen sensor
voltage Bank 2,
sensor 1 Oxygen sensor correction value
between bank 1, sensor 1 and bank 1,
sensor 2 Diagnostic condition
Functional
range
Test OFF
Test ON
System OK
System not OK
Specified
value 13 to
40 % 0.100 to 0.950 volts smaller than 0.02 System OK
Note
If "System not OK" is displayed:
Check DTC memory Page 01
-
12
If specified value "Syst. 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
ge 33 of 43 Readiness code11/22/2002 htt
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Page 38 of 43
01-109
Display fields
1 2 3 4
Display group 070: Diagnostic of tank ventilation valve
Display xx % xx %
---
Indicated Degree tank
ventilation valve is
opened Oxygen
sensor control
Diagnostic
value
Diagnostic condition
Functional
range
Test OFF
Test ON
TVV OK
TVV not OK
Aborted
Specified
value 0 to 99 % less than -7 %
or greater than
7 %
TVV OK
Note
If "TVV not OK" is displayed: Check DTC memory Page 01
-
12
. Check Evaporative Emission (EVAP) canister purge
regulator valve -N80- Page 24
-114
If specified value "TVV OK" is obtained:
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