Changes In Preheating Time Of The Glow Plugs - Fiat Brava Service Manual

Electrical system
Preheating control system
Bravo-Brava
55.
Wiring diagram
Pin
No.
1
2
3
4
5
6
7
Wire
colour
N
-
C
R
CL
M
R
Circuit involved
Car earth
Not connected
Ignition switch ( + 15)
Ignition switch (+50)
Wait-to-start warning light
Glow plugs
Battery positive
Changes in preheating time of the glow
plugs
A. Time period during which the warning
light is on and preheating is on.
B. Tolerance range in which the warning
light goes out, with preheating on.
C. Period with preheating on and warning
light off. This stage is characterized by a
period of 15 - 20 seconds of constant in­
tervention, and is counted from the mo­
ment when the warning light goes out.
D. POST-HEATING period, with glow plugs
on and warning light off. This stage, char­
acterized by a period of 15 - 20 seconds of
constant intervention, is counted from the
end of the starting phase with the engine
running.
E. Period with warning light off and post-
-heating off.
-30 -20 -ID 0 1 0 20 30 40 50 G O 7 0 -
c
'*°
156
Publication no. 506.670/02