With Grounding Diagnosis Switch; Immobilizer Indicator Lamp) - Suzuki Ignis Service Manual

6-48 ENGINE GENERAL INFORMATION AND DIAGNOSIS
TABLE A-3 MIL CHECK - MIL FLASHES AT IGNITION SWITCH ON (VEHICLE
WITHOUT IMMOBILIZER INDICATOR LAMP)
WIRING DIAGRAM / CIRCUIT DESCRIPTION
Refer to TABLE A-1.
NOTE:
For TYPE A and TYPE B, refer to NOTE in "ECM VOLTAGE VALUES TABLE" for applicable model.
INSPECTION
Step
1 MIL Flashing Pattern Check
1) Turn ignition switch ON.
Does lamp flashing pattern indicate diag-
nostic trouble code?
2 Diag. Switch Circuit Check
Is diag. switch terminal connected to
ground via service wire?
TABLE A-4 MIL CHECK - MIL DOES NOT FLASH OR JUST REMAINS ON EVEN
WITH GROUNDING DIAGNOSIS SWITCH TERMINAL (VEHICLE WITHOUT

IMMOBILIZER INDICATOR LAMP)

WIRING DIAGRAM / CIRCUIT DESCRIPTION
Refer to TABLE A-1.
NOTE:
For TYPE A and TYPE B, refer to NOTE in "ECM VOLTAGE VALUES TABLE" for applicable model.
INSPECTION
Step
1 MIL Circuit Check
1) Turn ignition switch OFF and disconnect connec-
tors from ECM.
Does MIL turn ON at ignition switch ON?
2 ECM/PCM Connection Check
1) Turn ignition switch OFF.
Is connector (C42-27 (Case of TYPE A. See NOTE)
or C41-14 (Case of TYPE B. See NOTE) connection)
connected to ECM/PCM properly?
3 Diag. Switch Terminal Circuit Check
1) Connect connectors to ECM.
2) Using service wire, ground C42-27 (Case of
TYPE A. See NOTE) or C41-14 (Case of TYPE
B. See NOTE) connection) terminal with connec-
tors connected to ECM.
3) Turn ignition switch ON.
Does MIL flash?
Action
Action
Yes
Go to Step 2.
System is in good condi-
tion.
Yes
"PPL/YEL" (Case of TYPE A.
See NOTE) or "PPL/WHT"
(Case of TYPE B. See NOTE)
circuit shorted to ground.
Go to Step 3.
"PPL/WHT" or "BLK" circuit in
monitor connector is open.
No
Substitute a known-good ECM
and recheck.
"PPL/WHT" circuit for monitor
connector shorted to ground. If
circuit is OK substitute a known-
good ECM and recheck.
No
Go to Step 2.
Poor connector connec-
tion.
Substitute a known-good
ECM and recheck.