Diagnosis Procedure

DIAGNOSIS PROCEDURE

Step	Action	YES	NO
1	CHECK DOOR SWITCHES INPUT SIGNAL With SDT Check door switches ("DOOR SW-DR", "DOOR SW-AS") in Data list mode with SDT. Refer to [SDT FUNCTION (BCM - DOOR LOCK) ] When any doors are open: DOOR SW-DR: ON DOOR SW-AS: ON When any doors are closed: DOOR SW-DR: OFF DOOR SW-AS: OFF Without SDT Check voltage between BCM connector M18 or M19 terminals 12, 47 and ground. Is the inspection result normal?	Door switch circuit is OK.	GO TO 2
2	CHECK BCM OUTPUT VOLTAGE Turn ignition switch OFF. Disconnect door switches. Check voltage between BCM connector M18, M19 terminals 12, 47 and ground. Courtesy of SUZUKI OF AMERICA CORP. 12 - Ground: Battery voltage 47 - Ground: Battery voltage Is the inspection result normal?	GO TO 3	Replace BCM. Refer to [BCM (BODY CONTROL MODULE): REMOVAL AND INSTALLATION ]
3	CHECK DOOR SWITCH CIRCUIT Disconnect BCM. Check continuity between door switch connector D213 (Front LH), D314 (Front RH) terminal 2, D211 (Rear upper LH), D312 (Rear upper RH), D212 (Rear lower LH), D313 (Rear lower RH) terminal 1 and BCM connector M18, M19 terminals 12, and 47. 2 - 47: Continuity should exist 2 - 12: Continuity should exist 1 - 47: Continuity should exist 1 - 12: Continuity should exist Courtesy of SUZUKI OF AMERICA CORP. 3. Check continuity between door switch connector D213 (Front LH), D314 (Front RH) terminal 2, D211 (Rear upper LH), D312 (Rear upper RH), D212 (Rear lower LH), D313 (Rear lower RH) terminal 1 and ground. 2 - Ground: Continuity should not exist 1 - Ground: Continuity should not exist Is the inspection result normal?	GO TO 4	Repair or replace harness.
4	CHECK DOOR SWITCHES GROUND CIRCUIT Check continuity between door switch connector D213 (Front LH), D314 (Front RH) terminal 3, D211 (Rear upper LH), D312 (Rear upper RH), D212 (Rear lower LH), D313 (Rear lower RH) terminal 2 and ground. 3 - Ground: Continuity should not exist 2 - Ground: Continuity should not exist Is the inspection result normal?	GO TO 5	Repair or replace harness.
5	CHECK DOOR SWITCHES Check continuity between door switch terminals. Is the inspection result normal?	Check condition of harness and connector.	Replace door switch.