Electronic Control System - Suzuki 2000 Grand Vitara SQ625 Service Manual

6E1-10 ENGINE AND EMISSION CONTROL SYSTEM (G16 / J20 ENGINES)

ELECTRONIC CONTROL SYSTEM

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:
D Fuel injection control system
D Heated oxygen sensor heater control system
G16 ENGINE
INFORMATION SENSORS
- 1. MAF sensor
- 2. VSS
- 3. Heated oxygen sensor-1
3-1. Heated oxygen sensor-2 (if equipped)
- 4. Power steering pressure switch
- 5. ECT sensor
- 6. Battery
- 7. TP sensor
- 8. Transmission range switch (A / T only)
- 9. Camshaft position sensor (CMP sensor)
-10. IAT sensor
-11. CO adjusting resistor (if equipped)
-12. Fuel level sensor
-13. ABS control module (if equipped)
-14. A / C control module (amplifier) (if equipped)
-15. Blank
-16. MAP sensor
-17. Crankshaft position sensor (if equipped)
-18. Ignition timing adjusting resistor (if equipped)
-19. Monitor connector (if equipped)
D Idle air control system
D Fuel pump control system
D Evaporative emission control system
D Ignition control system
D EGR system
Also, with 4 A/T model, PCM controls A/T.
CONTROLLED DEVICES
a : Fuel pump relay (Canvas top) /
: Main relay (Hard top)
b : Injectors
c : EGR valve (if equipped)
d : Idle air control valve
e : Ignition coil assemblies
g : Malfunction indicator lamp
h : Main relay (Canvas top) /
: Fuel pump relay (Hard top)
i : EVAP canister purge valve
j : A / C condenser fan motor relay
: (if equipped)
NOTE:
Above figure shows left-hand steering vehicle.
For right-hand steering vehicle, parts with (*) are
installed at the other side.
OTHERS
A : PCM / ECM
B : EVAP canister
C : Data link connector
D : Combination meter