2000 SUZUKI SWIFT tail light

ENGINE GENERAL INFORMATION AND DIAGNOSIS (TBI FOR G10) 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 MIL 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 SUZUKI scan tool (Tech-1) or generic scan tool.
2) With ignition switch OFF, connect it to data link connector (DLC)
(1) located on underside of instrument panel at driver’s seat side.
Special Tool:
(A): SUZUKI scan tool
(B): Mass storage cartridge
(C): 16 / 14 pin DLC cable
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 it or write it 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 vehicle. If communication is possible in
this case, scan tool is in good condition. Then check data link
connector and serial data line (circuit) in the vehicle with which
communication was not possible.
5) After completing the check, turn ignition switch off and discon-
nect scan tool from data link connector.

ENGINE GENERAL INFORMATION AND DIAGNOSIS (SFI FOR G13) 6-1-13
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 MIL 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 SUZUKI scan tool (Tech-1).
2) With ignition switch OFF, connect it to data link connector (DLC)
(1) located on underside of instrument panel at driver’s seat side.
Special Tool:
(A): SUZUKI scan tool
(B): Mass storage cartridge
(C): 16 / 14 pin DLC cable
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 it or write it 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 vehicle. If communication is possible in
this case, scan tool is in good condition. Then check data link
connector and serial data line (circuit) in the vehicle with which
communication was not possible.
5) After completing the check, turn ignition switch off and discon-
nect scan tool from data link connector.

ENGINE GENERAL INFORMATION AND DIAGNOSIS (SFI FOR G13) 6-1-105
Heater blower
switchRear defogger
switch Tail light relay
(Lighting switch)
Diodes in junction/
fuse block
Fig. 1 for Step 1 Fig. 2 for Step 1
TABLE B-6 ELECTRIC LOAD SIGNAL CIRCUIT CHECK
INSPECTION
STEPACTIONYESNO
1Check Electric Load Signal Circuit.
When using SUZUKI scan tool:
1) Connect SUZUKI scan tool to DLC with ignition
switch OFF.
2) Start engine and select “DATA LIST” mode on
scan tool.
3) Check electric load signal under following each
condition. See Fig. 1.
Ignition switch ON, Small light,
heater blower fan and rear
defogger all turned OFF : OFF
0 V (C01-17)
Ignition switch ON, Small light,
heater blower fan or rear
defogger turned ON : ON
10 – 14 V (C01-17)
Is check result satisfactory?
When not using SUZUKI scan tool:
1) Turn ignition switch ON.
2) Check voltage at terminals C01-17 of ECM (PCM)
connector connected, under above each condition.
See Fig. 2.
Is each voltage as specified?Electric load signal
circuit is in good
condition.“Br / Y” circuit open
or short, Electric
load diodes
malfunction or
Each electric load
circuit malfunction.