or
ENGINE DIAGNOSIS (RHZ ENGINE WITH SINGLE-CONNECTOR ECM) 6-13
MALFUNCTION INDICATOR LAMP (MIL) CHECK
1) Turn ON ignition switch (but the engine at stop) and check that
MIL lights.
If MIL does not light up or dims, go to “Diagnostic Flow Table A-1”
for troubleshooting.
2) Start engine and check that MIL turns OFF.
If MIL remains ON, and no DTC is stored in ECM (PCM), go to
“Diagnostic Flow Table A-2” for troubleshooting.
DIAGNOSTIC TROUBLE CODE (DTC) CHECK
1) Prepare generic scan tool or SUZUKI scan tool.
2) Connect it to data link connector (DLC) located on underside of
instrument panel at driver’s seat side.
Special Tool
(A): SUZUKI scan tool
3) Turn ignition switch ON and confirm that MIL lights.
4) Read DTC, pending DTC and freeze frame data according to
instructions displayed on scan tool and print them or write them
down. Refer to scan tool operator’s manual for further details.
If communication between scan tool and ECM (PCM) is not pos-
sible, check if scan tool is communicable by connecting it to
ECM (PCM) in another car. If communication is possible in this
case, scan tool is in good condition. Then check data link con-
nector and serial data line (circuit) in the car with which commu-
nication was not possible.
5) After completing the check, turn ignition switch off and discon-
nect scan tool from data link connector.
DIAGNOSTIC TROUBLE CODE (DTC) CLEARANCE
1) Connect generic scan tool or SUZUKI scan tool to data link con-
nector in the same manner as when making this connection for
DTC check.
2) Turn ignition switch OFF and then ON.
3) Erase DTC and pending DTC according to instructions dis-
played on scan tool. Refer to scan tool operator’s manual for fur-
ther details.
NOTE:
D When DTC clear command is executed using Suzuki
mode of Suzuki scan tool with engine run, DTC can not be
cleared from ECM memory.
4) After completing the clearance, turn ignition switch OFF and dis-
connect scan tool from data link connector.
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