Self-Diagnosis Function

ABS control module diagnoses conditions of the system component parts (whether or not there is any abnormality) all the time and indicates the results (warning of abnormality occurrence and DTC) through the ABS warning lamp as described.

When ignition switch is turned ON, ABS warning lamp lights for 2 seconds to check its circuit.
When no abnormality has been detected (the system is in good condition), ABS warning lamp turns OFF after 2 seconds.
When an abnormality in the system is detected, ABS warning lamp lights and the area where that abnormality lies is stored in the memory of EEPROM in ABS control module.
When connecting SUZUKI scan tool to DLC or short-circuit between diag. switch terminals of monitor connector, the abnormal area is output as DTC. It is indicated by flashing of ABS warning lamp or indicated DTC No. on SUZUKI scan tool. (Refer to the following table.)

Fig 1: Identifying Ground Terminal And Service Wire

Courtesy of SUZUKI OF AMERICA CORP.

SYSTEM CONDITION REFERENCE CHART

System Condition		ABS Warning Lamp Operation	DTC Indicated by ABS Warning Lamp	DTC Displayed on SUZUKI Scan Tool
In good condition at present	No trouble in the past	OFF	DTC 12	No DTC
In good condition at present	Trouble occurred in the past	OFF	History DTC	History DTC
Abnormality exists at present	No trouble in the past	ON	Current DTC	Current DTC
Abnormality exists at present	Trouble occurred in the past	ON	Current and history DTC indicated simultaneously	Current and history DTC indicated individually

For procedure to clear all DTCs, refer to "DTC CLEARANCE :".
Also ABS control module turns ON EBD warning lamp (brake warning lamp) depending on the trouble and EBD warning lamp does not indicate DTC.