Suzuki 2000 Grand Vitara SQ416, Service Manual

Page: 596 / 729

YH4
GRAND
VITARA
6E2-8 ENGINE AND EMISSION CONTROL SYSTEM (H25 ENGINE)
INFORMATION SENSORS
1. IAT sensor
2. MAP sensor (if equipped)
3. Heated oxygen sensor (sensor 1)
(if equipped)
4. ECT sensor
5. TP sensor
6. MAF sensor
7. Camshaft position sensor (CMP sensor)
8. ABS control module (if equipped)
9. Crank shaft position sensor (CKP sensor)
(if equipped)
10. Monitor connector (if equipped)
11. CO adjusting resistor (if equipped)
CONTROLLED DEVICES
a : A / C condenser fan motor relay
: (if equipped)
b : Ignition coil assemblies
c : EVAP canister purge valve
d : EGR valve (if equipped)
e : Idle air control valve
f : Injectors
g : Malfunction indicator lamp
h : Fuel pump relay
i : Main relay
j : Oxygen sensor heater relay
: (if equipped)
OTHERS
A : Main fuse box
B : ECM (PCM)
C : Data link connector
D : Combination meter
E : Fuse box
F : EVAP canister
NOTE:
Above figure shows left-hand steering
vehicle. For right-hand steering vehicle,
parts with (*) are installed at the other
side.
The electronic control system consists of 1) various
sensors which detect the state of engine and driving
conditions, 2) ECM (PCM) which controls various de-
vices according to the signals from the sensors and
3) various controlled devices.
Functionally, it is divided into the following sub sys-
tems:
Fuel injection control system
Heated oxygen sensor heater control system (if
equipped)
Idle air control system
Fuel pump control system
Evaporative emission control system
Ignition control system
EGR system
Also, with A / T model, PCM controls A / T.
ELECTRONIC CONTROL SYSTEM