Testing Voltage Supply For Control Unit - Skoda Octavia Workshop Manual

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Fuel Preparation/Fuel Injection
Continuation of test if readout is ambient
temperature:
K - Remove the intake air temperature sender
with intake manifold pressure sender (the
connector remains plugged in).
- Note the intake air temperature shown in
display block 4.
- Spray the sender with a commercially
available refrigeration spray and observe the
temperature readout. The temperature
readout should drop.
- Press the → key.
- Press keys 0 and 6 for the function „End data
transfer" and confirm the entry with the key Q.
Testing voltage supply for control
unit
Special tools, testers and aids required
Vehicle system tester V.A.G 1552 with cable
V.A.G 1551/3
Test box V.A.G 1598/22
Hand-held multimeter, e.g. V.A.G 1526 A or
multimeter V.A.G 1715
Adapter cable set V.A.G 1594 A
Current flow diagram
Test conditions
l Battery voltage at least 11 V
l Alternator o.k.
K l Fuses 10 and 29 o.k.
Test procedure
- Connect vehicle system tester V.A.G 1552
and select engine electronics control unit with
the address word 01. The engine should be
running at idling speed for this step.
(Connecting vehicle system tester and
selecting engine electronics control unit
page 01-2.)
OCTAVIA
Edition 11.98
S00.5109.51.20