Skoda OCTAVIA MK1 Service Manual page 148

01087
Basic setting
not
performed
implausible Conditions for the basic setting
signal (adaptation of the throttle valve
control unit) not fulfilled:
t Ignition not switched on
t Engine not in standstill
t Idling switch not closed
Voltage of the throttle valve
potentiometer and the throttle
valve positioner potentiometer
t implausible (cannot be
accurately detected by the
engine control unit; throttle
valve not completely closed)
Throttle valve positioner
t
jams/mechanically damaged
Battery voltage too low (below
t
8 V)
t Fault in fault memory
Throttle valve control unit
t
defective
t Engine control unit defective
01126
Engine
speed signal
defective
t Line interruption or short-
The engine control
unit cannot learn the
stop positions of the
throttle valve
t
because the
conditions are not
fulfilled for this (see
possible fault cause)
t
148
circuit and/or for
interruption
→ Current flow
diagrams and Fitting
locations.
Read measured
value block, display
–
group 001 or 098
→ Chapter or
→ Chapter.
Inspecting throttle
–
valve control unit
→ Chapter.
Interrogating fault
–
memory.
Perform adaptation
– of the throttle valve
control unit
→ Chapter.
Read measured
– value block, display
group 005
→ Chapter.
Interrogating fault
–
memory.
Replace throttle
–
valve control unit.
Replacing engine
–
control unit
→ Chapter.