Skoda OCTAVIA 2004 Workshop Manual page 15

OCTAVIA
Readout on V.A.G 1552
Fault number
old
00522
Coolant temperature
sender -G62
Short circuit to
earth
Open/short
circuit to positive
00527
Intake manifold tem-
perature sender -G72
Short circuit to
earth
Open/short
circuit to positive
00532
Supply voltage
Implausible signal
as appropriate
Voltage supply tml.
15
Voltage too low
Edition 02.99
S00.5111.53.20
Possible cause of fault
new
17663
♦ -G62 faulty
♦ Cable has short circuit to
earth
17664 ♦ -G62 faulty
♦ Open circuit in wiring or
cable has short circuit to
positive
17568
♦ -G72 faulty
♦ Cable has short circuit to
earth
17569 ♦ -G72 faulty
♦ Open circuit in wiring or
short circuit to positive
18008
♦ Control unit was con-
nected when ignition on
♦ Open circuit in wiring or
short circuit
♦ Voltage not present when
ignition on (terminal 15)
♦ Diesel direct injection sys-
tem control unit -J248
faulty
♦ Voltage supply relay termi-
nal 30 (J322) faulty
Self-Diagnosis
Possible effects
♦ Black exhaust when start-
ing
♦ Engine preheater does not
operate
♦ Preglowing always oper-
ates for about 20 seconds
♦ Engine preheater does not
operate
♦ Engine does not start
♦ Engine stops
Rectifying fault
- Test coolant temperature
sender ⇒ page 23-43
- Test intake manifold tem-
perature sender
⇒ page 23-25
- Erase fault memory and
continue checking vehicle
- Test voltage supply of die-
sel direct injection system
control unit ⇒ page 23-38
- Test voltage supply of ter-
minal 15
⇒ Current Flow Diagrams,
Electrical Fault Finding
and Fitting Locations
binder
- Replace control unit
⇒ page 23-20
- Test voltage supply of die-
sel direct injection system
control unit ⇒ page 23-38
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