Injection System Fault (Diesel Versions); Engine Control System Fault (Eobd) (Petrol Versions) - Fiat Punto Owner's Handbook Manual

INJECTION SYSTEM
U
FAULT
(Multijet versions
– amber)
EOBD SYSTEM FAULT
(petrol versions – amber)
Injection system failure
Under normal conditions, turning the ig-
nition key to MAR, the warning light turns
on but it should go off after the engine
starts.
If the warning light stays on or comes on
when travelling, it means there is a fault in
the injection system which could cause
loss of performance, poor handling and
high fuel consumption levels.
A specific message is displayed on certain
versions.
Under these conditions, the vehicle can
continue travelling at moderate speed
without demanding excessive effort from
the engine. In any case, you should go to
a Fiat Dealership as soon as possible.
128
EOBD engine control
system failure
Under normal conditions, turning the ig-
nition key to MAR, the warning light turns
on but it should go off after the engine
starts. This indicates that the warning light
is working correctly. If the warning light ei-
ther stays on or comes on while travelling:
❒ on permanently: this means there is
a fault in the supply/ignition system
which could cause high exhaust emis-
sions, loss of performance, poor han-
dling and high fuel consumption levels.
A specific message is displayed on certain
versions.
Under these conditions, the vehicle can
continue travelling at moderate speed
without demanding excessive effort from
the engine. Prolonged use of the car with
the warning light on may cause damage.
Go to a Fiat Dealership as soon as possi-
ble. The warning light goes out after the
fault disappears, but the indication is
stored in the system.
❒ flashing: this indicates possible damage
to the catalytic converter (see "EOBD
system" in the "Dashboard and con-
trols" section).
If the light flashes, come off the accelera-
tor pedal to reduce engine revs until the
warning light stops flashing; continue the
journey at moderate speed, trying to avoid
driving conditions that may cause further
flashing, and get to a Fiat Dealership as
soon as possible.
Go to a Fiat Dealership as
soon as possible if warning
U
light does not light up
when the key is turned to
MAR or if, while travelling, it either
comes on permanently or flashes
(along with a message on the display
on some versions). The operation of the
U
warning light may be checked by
traffic police using appropriate equip-
ment. Respect the regulations in force
in the country where you are driving.