Mitsubishi Montero Sport (2004+). Manual - part 534
HEADLIGHT
TSB Revision
CHASSIS ELECTRICAL
54-123
HEADLIGHT
INSPECTION
M1543019501567
AMBIENT TEMPERATURE SENSOR CHECK
Check the internal resistance of the ambient temperature sen-
sor are at the standard values at temperature of 20
°C (68°F)
and 40
°C (104°F).
Standard value:
Approximately 1,200
Ω [at 20°C (68°F)]
Approximately 500
Ω [at 40°C (104°F)]
LIGHTING SYSTEM DIAGNOSIS
INTRODUCTION TO LIGHT REMINDER ALARM DIAGNOSIS
M1542010500490
A ETACS-ECU is mounted in all vehicles.
ETACS-ECU has a light reminder tone alarm func-
tion. The light reminder tone alarm function alerts the
driver that the lights have not been turned off. If the
following symptoms occur, the system may be mal-
functioning.
• When the tone alarm does not stop sounding
when the ignition key is turned to the "ON" posi-
tion.
• When the tone alarm does not stop sounding
when the lighting switch is turned "OFF."
• When the tone alarm does not stop sounding
when the driver's door is closed.
• When the tone alarm does not sound when the
ignition key is inserted ("OFF" position), the light-
ing switch is turned to the "ON" position (HEAD"
or "TAIL" position), and the river's door is opened.
LIGHT REMINDER ALARM DIAGNOSIS TROUBLESHOOTING STRATEGY
M1542010600118
Use these steps to plan your diagnostic strategy. If
you follow them carefully, you will be sure that you
have exhausted most of the possible ways to find a
light reminder alarm fault.
1. Gather information from the customer.
2. Verify that the condition described by the
customer exists.
3. Find the malfunction by following the Symptom
Chart.
4. Confirm that the malfunction is eliminated.
SYMPTOM CHART
M1542009100197
AC002772
AB
SENSOR
DRYER
THERMOMETER
SYMPTOM
INSPECTION
PROCEDURE
REFERENCE PAGE
Light reminder tone alarm function does not work normally.
1
Day time running light function does not illuminate <Vehicles for
Canada>.
2