Hyundai HX145LCR Manual page 382

4. 4. WHEN COOLANT OVERHEAT WARNING LAMP LIGHTS UP WHEN COOLANT OVERHEAT WARNING LAMP LIGHTS UP (engine is started)
·Before disconnecting the connector, always turn the starting switch OFF.
·Before carrying out below procedure, check all the related connectors are properly inserted.
·After checking, insert the disconnected connectors again immediately unless otherwise specified.
Check resistance
between engine
YES
harness connector
(34)-(83)
Spec : 180
Check resistance
between temp
sensor (A)-(B)
Starting switch : OFF
Ω Ω
Spec : 180 ~160 k
See table
NO
SERVICE TOOL
CAN Lo
CAN Hi
RS232 TX
RS232 RX
RS232 P DUMP
YES
Ω Ω
~160 k
NO
Check Table Check Table
Temperature (˚C )
Resistance (kΩ)
6 7
F
5 8
E
3 41
C
2 42
B
A
1 27
CN-126 CN-5
0 25
30~37 9.3~10.7
31
21
24
34
16
CN-51
6-27
Cause Remedy
Check use HRDT Check or replace
Disconnection in Repair or replace
wiring harness or (after clean)
poor contact
between temp
sensor-engine
harness connector
Defective coolant Replace
temp sensor
50 80
3.2~3.8 1.0~1.3
ENGINE ECM
9 25 CAN A Hi
10 26 CAN A Lo
CN-93
CN-3
95
0.7~0.8
145LCR6ES03