A/T Models

WARNING: This page is about a different variant/trim than selected.

DIAGNOSIS PROCEDURE

Step	Action	YES	NO
1	CHECK OVERALL FUNCTION-I With SDT Turn ignition switch ON. Select "BRAKE SW1" in "Data list" mode with SDT. Check "BRAKE SW1" indication under the following conditions. Courtesy of SUZUKI OF AMERICA CORP.SUZUKI OF AMERICA CORP.SUZUKI OF AMERICA CORP. 2) Without SDT Turn ignition switch ON. Check voltage between ECM terminal 108 and ground under the following conditions. Courtesy of SUZUKI OF AMERICA CORP.SUZUKI OF AMERICA CORP.SUZUKI OF AMERICA CORP. Courtesy of SUZUKI OF AMERICA CORP.SUZUKI OF AMERICA CORP.SUZUKI OF AMERICA CORP. OK or NG	GO TO 2.	GO TO 3.
2	CHECK OVERALL FUNCTION-II With SDT Check "BRAKE SW2" indication in "Data list" mode. Without SDT Check voltage between ECM terminal 101 and ground under the following conditions. OK or NG	INSPECTION END	GO TO 7.
3	CHECK ASCD BRAKE SWITCH POWER SUPPLY CIRCUIT Turn ignition switch OFF. Disconnect ASCD brake switch (1) harness connector. Courtesy of SUZUKI OF AMERICA CORP.SUZUKI OF AMERICA CORP. Stop lamp switch (2) 3. Turn ignition switch ON. 4. Check voltage between ASCD brake switch terminal 1 and ground with SDT or tester. Courtesy of SUZUKI OF AMERICA CORP.SUZUKI OF AMERICA CORP. Voltage: Battery voltage OK or NG	GO TO 5.	GO TO 4.
4	DETECT MALFUNCTIONING PART Check the following. Fuse block (J/B) connector E160 10 A fuse (No. 12) Harness for open or short between ASCD brake switch and fuse	Repair open circuit or short to ground in harness or connectors.
5	CHECK ASCD BRAKE SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT Turn ignition switch OFF. Disconnect ECM harness connector. Check harness continuity between ECM terminal 108 and ASCD brake switch terminal 2. Refer to WIRING DIAGRAM . Continuity should exist. Also check harness for short to ground and short to power. OK or NG	GO TO 6.	Repair open circuit or short to ground or short to power in harness or connectors.
6	CHECK ASCD BRAKE SWITCH Refer to [ASCD BRAKE SWITCH CIRCUIT CHECK ]. OK or NG	GO TO 11.	Replace ASCD brake switch.
7	CHECK STOP LAMP SWITCH POWER SUPPLY CIRCUIT Turn ignition switch OFF. Disconnect stop lamp switch (2) harness connector. Courtesy of SUZUKI OF AMERICA CORP.SUZUKI OF AMERICA CORP. ASCD brake switch (1) 3. Check voltage between stop lamp switch terminal 1 and ground with SDT or tester. Courtesy of SUZUKI OF AMERICA CORP.SUZUKI OF AMERICA CORP. Voltage: Battery voltage OK or NG	GO TO 9.	GO TO 8.
8	DETECT MALFUNCTIONING PART Check the following. Fuse block (J/B) connector E160 10 A fuse (No. 20) Harness for open or short between stop lamp switch and battery	Repair open circuit or short to ground or short to power in harness or connectors.
9	CHECK STOP LAMP SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT Disconnect ECM harness connector. Check harness continuity between ECM terminal 101 and stop lamp switch terminal 2. Refer to WIRING DIAGRAM . Continuity should exist. Also check harness for short to ground and short to power. OK or NG	GO TO 10.	Repair open circuit or short to ground or short to power in harness or connectors.
10	CHECK STOP LAMP SWITCH Refer to [ASCD BRAKE SWITCH CIRCUIT CHECK ]. OK or NG	GO TO 11.	Replace stop lamp switch.
11	CHECK INTERMITTENT INCIDENT Refer to [SERVICE INFORMATION FOR ELECTRICAL INCIDENT: INTERMITTENT INCIDENT ]	INSPECTION END