Engine Diagnosis General Description - Suzuki Jimny Workshop Manual

This vehicle is equipped with an engine and emission control system which are under control of ECM.

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:M13A with VVT and each item in Precautions in Diagnosing Trouble:M13A with VVT and execute diagnosis according to Engine and Emission Control System Check:M13A with VVT .

There is a close relationship between the engine mechanical, engine cooling system, ignition 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 malfunction indicator lamp (MIL) doesn’t turn ON, it should be diagnosed according to Engine and Emission Control System Check:M13A with VVT .