Fiat Brava Service Manual page 143

Fault diagnosis
Analytical charts
55D.
The rev countei is not working
Bridge the L coloured cable
between the instrument
panel 6 connector A pin 16
and the fuel injection con­
trol unit 160 pin 3 (195 pin
42 for 1 5 8 1 , 190 pin 6 for
1998)
Not OK
+
Connect to diagnostic
socket 139 (See electronic
injection wiring diagram)
and carry out fault diagnosis
with the Fiat Lancia Tester
The speedometer is not working
Bridge the N coloured cable
at the vehicle speed sensor
137 w i t h an earth (if there
are also problems with the
electronic injection control
unit sensor 137)
*
Not OK
*
Check for voltage at the CN
coloured cable for the in­
strument panel 6 connector
A pin 15 (if there are also
problems with the electronic
injection control unit sensor
137)
4
OK
*
Check for voltage at the CN
coloured cable for connec­
tor 55
4
116 Print no. 506.670/02
Bravo-Brava
OK Restore the continuity for
the L coloured cable be­
tween the instrument panel
6 connector A & the elec­
tronic injection control unit
OK
Restore the continuity of the
N coloured cable between
the sensor 137 & the right
front earth 9
Not OK
Overhaul
panel 6
the instrument
Not OK
Restore continuity for the
CN coloured cable between
connector 55 & the instru­
ment panel 6 connector A