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SEN04123-01
E-5 Automatic warm-up system does not operate (in cold season)
Trouble
• Automatic warm-up system does not operate (in cold season).
Related
• When engine coolant temperature is below 50°C automatic warm-up system raises engine low idle
information
speed to 1,300 rpm.
Possible causes
Defective engine coolant
and standard
1
temperature signal system
value in normal
state
2 Defective engine controller
Engine coolant temperature gauge and engine
coolant temperature monitor
16
Cause
Standard value in normal state/Remarks on troubleshooting
a Turn starting switch ON or start engine and carry out trouble-
shooting.
Monitoring code
Engine coolant
If level of coolant temperature gauge is different from actual cool-
ant temperature, carry out troubleshooting for E-9 Engine coolant
temperature gauge does not indicate normally.
If cause 1 is not detected, engine controller may be defective.
(Since trouble is in system, troubleshooting cannot be carried out.)
Engine coolant
temperature
04107
temperature
40 Troubleshooting
Coolant temperature
level
105°C
6 (a: Red)
102°C
5 (a: Red)
100°C
4 (a: Blue)
85°C
3 (a: Blue)
60°C
2 (a: Blue)
30°C
1 (a: White)
1
PC130-8
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Table of Contents
Troubleshooting
