Statement On Cleanliness And Care; Engine Diagnosis General Description - Suzuki GRAND VITARA 2005 Service Manual

1A-2 Engine General Information and Diagnosis:

Statement on Cleanliness and Care

An automobile engine is a combination of many
machined, honed, polished and lapped surfaces with
tolerances that are measured in the thousands of an
millimeter (ten thousands of inch).
Accordingly, when any internal engine parts are
serviced, care and cleanliness are important.
It should be understood that proper cleaning and
protection of machined surfaces and friction areas is part
of the repair procedure. This is considered standard
shop practice even if not specifically stated.
• A liberal coating of engine oil should be applied to
friction areas during assembly to protect and lubricate
the surfaces on initial operation.
• Whenever valve train components, pistons, piston
rings, connecting rods, rod bearings, and crankshaft
journal bearings are removed for service, they should
be retained in order.
At the time of installation, they should be installed in
the same locations and with the same mating
surfaces as when removed.
• Battery cables should be disconnected before any
major work is performed on the engine.

Engine Diagnosis General Description

The engine and emission control system in this vehicle
are controlled by ECM. ECM has an On-Board
Diagnostic system which detects a malfunction in this
system and abnormality of those parts that influence the
engine exhaust emission. When diagnosing engine
troubles, be sure to have full understanding of the outline
of "On-Board Diagnostic System Description: " and each
item in "Precautions in Diagnosing Trouble: " and
execute diagnosis according to "Engine and Emission
Control System Check: ".
There is a close relationship between the engine
mechanical, engine cooling system, exhaust system,
etc. and the engine and emission control system in their
structure and operation. In case of an engine trouble,
even when the warning light (MIL, injection warning light,
and/or red stop warning light) doesn't turn ON, it should
be diagnosed according to this flow table.
Failure to disconnect cables may result in damage to
S5JB0B1100003 wire harness or other electrical parts.
• The four cylinders of the engine are identified by
numbers; No.1 (1), No.2 (2), No.3 (3) and No.4 (4) as
counted from flywheel side to crankshaft pulley side.
General Description
On-Board Diagnostic System Description
S5JB0B1101002
ECM in this vehicle has the following functions.
• When the ignition switch is turned ON with the engine
at a stop, MIL (1), turns ON to check the warning light
and its circuit.
1
2
3
4
2 1
I5JB0B110001-01
S5JB0B1101003
3
I5JB0B110002-01