Skoda OCTAVIA MK1 Service Manual page 209

07.97.
Disconnect the plug from the air mass
– meter -G70- and connect the multimeter
between contact 3 of the plug and the
engine mass.
– Start engine and run in idle.
Specified value: 11...15 V
– Switch off ignition.
If the voltage supply is o.k., check signal
–
lines and earth connection
If no voltage is present:
Check the cable connection from contact
3 of the plug to fuse no. 43 for continuity
–
and/or short-circuit to earth, if necessary
repair cable connection
diagrams and Fitting
If fuse and wiring are o.k. but neverthless
–
no voltage is present, check the fuel
pump relay → Chapter.
Check the signal line and the earth
connection of the air mass meter on
vehicles ► 07.97.
Connect the test box -V.A.G 1598/22- to
–
the wiring loom of the engine control unit
→ Chapter.
Test wiring from plug of air mass meter to
–
engine control unit for interruption or
short-circuit to positive or earth.
Plug of air mass meter G70
– If the wiring is O.K., replace air mass meter -G70-.
Check the voltage supply of the air mass meter on vehicles 08.97 ►
Disconnect the plug -1- from the air mass
– meter -2- and connect the hand-held
multimeter between contact 3 of the plug
and the engine mass.
– Start engine and run in idle.
→ Anchor.
→ Current flow
locations.
1
2
Test box - V.A.G 1598/22-
209
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