Operation CHARM: Car repair manuals for everyone.
Home >> Suzuki >> 2012 >> Grand Vitara 4WD L4-2.4L >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Description and Operation >> Engine Diagnosis General Description
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Engine Diagnosis General Description




Engine Diagnosis General Description

The engine and emission control systems in this vehicle are controlled by ECM. ECM has an On-Board Diagnostic (OBD) 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 (OBD) System Description On-Board Diagnostic (OBD) System Description
and each item in Precautions for Diagnosing Trouble Precautions for Diagnosing Trouble
and execute diagnosis according to Engine and Emission Control System Check Engine and Emission Control System Check.

There is a close relationship between the emission system, engine mechanical, engine cooling system, ignition system, exhaust system, etc. in their structure and operation. In case of an engine trouble, even when the malfunction indicator lamp (MIL) does not turn on, it should be diagnosed according to Engine and Emission Control System Check Engine and Emission Control System Check.
pro multis · About Operation CHARM