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TROUBLESHOOTING
ALERT SYSTEM/WARNING SYSTEM TROUBLESHOOTING
• Perform the MIL initial check before starting the engine.
The warning buzzer can sound when the starter motor speed is extremely low, but the alert system/warning system is normal if
the buzzer stops sounding after starting the engine.
When the warning buzzer keeps sounding after MIL initial check, refer to the following symptom chart and perform the
necessary troubleshooting.
If the symptom is not shown in the following symptom chart, perform a function test according to the following procedure:
– FUNCTION TEST USING THE Dr.H (page 4-17)
– FUNCTION TEST WITHOUT USING THE Dr.H (page 4-18)
SYMPTOM CHART
Condition Indicator light
Warning
buzzer
Oil
indicator
light
(Green)
Overheat
indicator
light (Red)
MIL
(Red)
Alternator
indicator
light (Red)
Combination switch ON
(MIL initial check) (for 2 sec.) (for 2 sec.) (for 2 sec.)
Sounds twice
2 sec. after turning the combination
switch ON
Stop
Normal operation Stop
Low oil pressure Continuous
sound
Overheat Continuous
sound
MIL faulty
*1 *2
Intermittent
sound
(Long beep)
Abnormal charging Intermittent
sound
(Long beep)
Water contamination Intermittent
sound
(Short beep)
When two or more problems occur the same time, the warnings for both problems are indicated together.
The prolonged buzzer sound takes precedence over the short buzzer sound.
Example: When problems occur with overheat and abnormal charging at the same time, the oil indicator light, and the alternator
indicator light all come on and the buzzer sounds continuously.
*1: The oil indicator light blinks when a problem with the EOP sensor occurs at the same time as a MIL malfunction.
*2: The overheat indicator light blinks when a problem with the ECT sensor occurs at the same time as a MIL malfunction.
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