Skoda OCTAVIA Workshop Manual page 22

01
Readout V.A.G 1552
Fault number
old new
01028
Blower relay -J323
Line interrup-
tion/short-circuit
to earth
Short-circuit to
positive
01044 18020
Engine control
unit is wrongly
coded
01117 17911
Load signal for
generator tml. DF
Implausible sig-
nal
01180
Engine/air condi-
tioning compres-
sor electrical con-
nection
Short-circuit to
positive
------------ 01-16 -------------
Possible cause of fault
-
♦ Line interruption of
♦ Relay -J323 defective
♦ Short-circuit to earth
-
♦ Short-circuit to positive
♦ Invalid control unit coding
♦ Line interruption or short-
circuit
♦ Generator defective
♦ Voltage regulator defec-
tive
-
♦ Short-circuit in the wiring
Self-Diagnosis
Possible effects
♦ Delayed fan switch off
♦ Radiator fan constantly on
♦ Delayed fan switch off
♦ Glow period indicator light
flashes
♦ Engine preheating not op-
erational
♦ Reduced vehicle accelera-
tion, when the air condi-
tioning system is switched
on
OCTAV1A
Rectifying fault
- Check radiator fan signal
⇒ page 01-20, Actuator
diagnosis
- Coding control unit
⇒ page 01-26
- Check wiring
- Check generator
⇒ Binder: Current Flow Dia-
grams, Electrical Fault
Finding and Fitting Loca-
tions
- Testing signals from/to the
air conditioning system
⇒ 1.9/66 kW (TDI) Engine,
Fuel Injection and Glow
Plug System
Edition 01.04
S00.5122.55.20