Skoda OCTAVIA 2004 Workshop Manual page 39

OCTAV1A
Vehicle system test
Fault memory is erased
Reading measured value block
2500/rpm
4.6 mg/h
Reading measured value block
1650/rpm
4.1 mg/h
Edition 01.04
S00.5111.56.20
Self-Diagnosis
→
1
→
2.0 °CA 94.2 °C
1
→
4.0 °CA 93.2 °C
Work step 2: Erasing fault memory
K - Enter function 05 “Erasing fault memory” and
confirm entry with key Q.
Note:
Readiness code is erased each time the fault
memory is erased.
If the ignition is switched off during “Interrogat-
ing fault memory” and “Erasing Fault memory”,
the fault memory is not erased.
- → Press.
Work step 3: Switching off ignition
- Wait at least 5 seconds with ignition OFF.
Note:
This point is important, because with certain di-
agnoses the slowing down of the control unit
must be ended. Otherwise readiness code can-
not be generated.
Work step 4: Switching on ignition
- Wait at least 10 seconds with ignition OFF.
Charge pressure sender is adapted with atmos-
pheric charge pressure sender.
Work step 5: 1st test of fuel supply and
other systems
- Start engine.
- Select function “Reading measured value
block” and display group 001.
K - For 5 seconds increase the engine speed to
2500 rpm and then run engine at idling
speed.
Work step 6: 1st test of exhaust gas recir-
culation
K - Increase engine speed to 1600 rpm up to
1700 rpm and maintain it for at least 10 sec-
onds in this range.
In this speed range, the exhaust gas recircula-
tion is active and the control difference is
checked. (Condition for readiness code to gen-
erate exhaust gas recirculation).
01
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