Suzuki Baleno Manual page 1270

6-1-40 ENGINE GENERAL INFORMATION AND DIAGNOSIS (G13/G16 ENGINE WITH WU TWC)
TABLE A-1 MALFUNCTION INDICATOR LAMP CIRCUIT CHECK – LAMP
DOES NOT COME "ON" AT IGNITION SWITCH ON (BUT ENGINE
AT STOP)
CIRCUIT DESCRIPTION
Ignition
switch
Main
fuse
When the ignition switch is turned ON, ECM (PCM) causes the main relay to turn ON (close the contact point).
Then, ECM (PCM) being supplied with the main power, turns ON the malfunction indicator lamp (MIL). When the
engine starts to run and no malfunction is detected in the system, MIL goes OFF but if a malfunction was or is de-
tected, MIL remains ON even when the engine is running.
INSPECTION
STEP
1 MIL Power Supply Check
1) Turn ignition switch ON.
Do other indicator / warning lights in combina-
tion meter comes ON?
2 ECM (PCM) Power and Ground Circuit
Check
Does engine start?
3 MIL Circuit Check
1) Turn ignition switch OFF and disconnect
connectors from ECM (PCM).
2) Check for proper connection to ECM
(PCM) at terminal E92-2.
3) If OK, then using service wire, ground ter-
minal E92-2 in connector disconnected.
Does MIL turn on at ignition switch ON?
Malfunction indicator lamp in combination meter
ACTION
Main
relay
YES
Go to Step 2.
Go to Step 3.
Substitute a known-
good ECM (PCM) and
recheck.
NO
"IG" fuse blown, main fuse
blown, ignition switch malfunc-
tion, "B / W" circuit between
"IG" fuse and combination me-
ter or poor coupler connection
at combination meter.
Go to TABLE A-3 ECM (PCM)
POWER AND GROUND CIR-
CUIT CHECK.
If engine is not cranked, go to
DIAGNOSIS in SECTION 6G.
Bulb burned out or "V" wire
circuit open.