Suzuki Samurai 1986, Service Manual

Page: 163 / 482

Fig.
1. ECM
2. Instrument panel
.
The ECM sensed parameters are as follows:
l
Exhaust Oxygen Concentration.
It is sensed by the oxygen sensor installed on
the exhaust manifold.
1. Oxygen sensor
Fig. 0 Oxygen sensor
2. Exhaust manifold
l
Engine coolant temperature.
It is sensed by the thermal switch installed on
the intake manifold.
1. Thermal switch
2. Intake manifold
Fig, Thermal switch
l
Throttle position.
It is sensed by the micro switches (wide open
switch and idle switch) installed on the
carburetor.
1. Idle micro switch
2. Wide open micro switch
Fig. Micro switches
l
Engine speed.
It is computed by the ECM based on the
electrical signal received from the ignition
system.
l
Electric load.
The ECM senses electric loads of the follow-
ing items to provide idle speed compensation.
a. Small, tail, side marker, license light.
b. Rear defogger (if equipped).
c. Heater fan.
5-11