1989 MITSUBISHI GALANT turn signal bulb

13-10
FUEL SYSTEM - TroubleshootingTerminal
at sensor side
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indicator lamp68AOO93
l
If the voltage (power-supply voltage) supplied to a sensor
is not normal, repair the harness. If the voltage to the sensor is still not normal after the har-
ness has been repaired, repalce the engine control module
and check again.
W&K ENGINE/MALFUNCTION INDICATOR
Among the on-board diagnostic items, a check
engine/mal-
function indicator lamp comes on to notify the driver of the
emission control items when an irregurality is detected. However, when an irregular signal returns to normal
andthe
engine control module judges that it has returned to normal,
the check engine/malfunction indicator lamp goes out. Moreover, when the ignition switch is turned off, the light goes
out. Even if the ignition switch is turned on again, the light does not come on until the irregularity is detected.
Here, immediately after the ignition switch is turn on, the
check engine/malfunction indicator lamp is lit for 5 seconds to indicate that the check engine/malfunction indicator lamp op-
erates normally.
ITEMS INDICATED BY THE CHECK ENGINE/
MALFUNCTION INDICATOR LAMP
1 Enaine control module
IOxvaen sensorI
IVolume air flow sensorIIntake air temperature sensor
Throttle position sensor
Engine coolant temperature sensor
Idle speed control motor position sensor
Crankshaft position sensor
Camshaft position sensor
Barometric rxessure sensor
Injector
Fuel pump
EGR
CHECK ENGINE/MALFUNCTION INDICATOR LAMP
INSPECTION
(1) Check to be sure, when the ignition switch is set to the “ON” position, that the lamp illuminates for about five sec-onds and then switches OFF.
(2) If the lamp does not illuminate, check for damage or dis-
connection of the harness, or for a blown fuse or a failedlight bulb.
TSB Revision

13-120FUEL SYSTEM - Troubleshooting
CHH;K
ENGINE/MALFUNCTION INDICATOR
Among the on-board diagnostic items, a check engine/mal-
function indicator lamp comes on to notify the driver
of the
emission control items when an irregurality is detected. However, when an irregular signal returns to normal and the
engine control module judges that it has returned to normal,
the check engine/malfunction indicator lamp goes out. Moreover, when the ignition switch is turned off, the light goes
Check engine/malfunctionout. Even if the ignition switch is turned on again, the light doesindicator lamp68A.0093not come on until the irregularity is detected.
Here, immediately after the ignition switch is turn on, the
check engine/malfunction indicator lamp is lit for 5 seconds to indicate that the check engine/malfunction indicator lamp op-
erates normally.
ITEMS INDICATED BY THE CHECK ENGINE/
MALFUNCTION INDICATOR LAMP
Engine control module
Oxygen sensor
Volume air flow sensor
Intake air temperature sensor
Throttle position sensor
Engine coolant temperature sensor
Crankshaft position sensor Camshaft position sensor
Barometric pressure sensor
Ignition timing adjustment signal
Injector
EGR
Caution
Check engine/malfunction indicator lamp will come on
even when terminal for ignition timing adjustment is short-circuited. Therefore, it is not abnormal that the
light comes on even when terminal for ignition timing
adjustment is short-circuited at the time of ignition tim-
ing adjustment.
CHECK ENGINE/MALFUNCTION INDICATOR LAM
P
INSPECTION
(1) Check to be sure, when the ignition switch is set to the “ON” position, that the lamp illuminates for about five
seconds and then switches OFF.
(2) If the lamp does not illuminate, check for damage or dis- connection of the harness, or for a blown fuse or a failedlight bulb.
TSB Revision

FUEL SYSTEM - Troubleshootina13-205
Check engine/malfunctionindicator lamp6w.0093
TROUBLESHOOTINGM13EBADa
EXPLANATION O

F
PROCEDURES
Refer to P.13-8.
TROUBLESHOOTING
EXPLANATION AND PRECAUTION RELATED
TO HARNESS CHECKING
Refer to
P.13-9.
ft&;K ENGINE/MALFUNCTION INDICATO
R
Among the on-board diagnostic items, a check engine/mal-
function indicator lamp comes on to notify the driver of the
emission control items when an irregurality is detected. However, when an irregular signal returns to normal and the
engine control module judges that it has returned to normal,
the check engine/malfunction indicator lamp goes out. Moreover, when the ignition switch is turned off, the light goes
out. Even if the ignition switch is turned on again, the light does
not come on until the irregularity is detected. Here, immediately after the ignition switch is turned on, the
check engine/malfunction indicator lamp is lit for 5 seconds to
indicate that the check engine/malfunction indicator lamp op-
erates normally.
ITEMS INDICATED BY THE CHECK ENGINE/
MALFUNCTION INDICATOR LAMP
Engine control module
Heated oxygen sensor
Volume air flow sensor
Intake air temperature sensor
Throttle position sensor
Engine coolant temperature sensor
Crankshaft position sensor
Camshaft position sensor
Barometric pressure sensor
Knock sensor
Injector
Fuel pump
EGR
Ignition coil, Ignition power transistor unit
CHECK ENGINE/MALFUNCTION INDICATOR LAMP INSPECTION
(1) Check to be sure, when the ignition switch is set to the “ON” position, that the lamp illuminates for about five sec-
onds and then switches OFF.
(2) If the lamp does not illuminate, check for damage or dis-
connection of the harness, or for a blown fuse or a failed
light bulb.
TSB Revision