Hyundai HX145LCR Manual page 386

8. WHEN COOLANT TEMPERATURE GAUGE DOES NOT OPERATE 8. WHEN COOLANT TEMPERATURE GAUGE DOES NOT OPERATE
·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
kΩ
Spec : 180 ~160
See table
NO
SERVICE TOOL
CAN Lo F
CAN Hi E
RS232 TX
C
RS232 RX
B
RS232 P DUMP A
YES
Ω
kΩ
~160
NO
Check Table Check Table
Temperature (˚C )
Resistance (kΩ) 30~37
6 7
5 8
3 41
2 42
1 27
CN-126 CN-5
Check use HRDT
Disconnection in
wiring harness or
poor contact
between temp
sensor-engine
harness connector
Defective coolant
temp sensor
0 25 50
9.3~10.7 3.2~3.8
31
21
24
34
CN-3
16
CN-51
6-31
Cause Remedy
Check or replace
Repair or replace
(after clean)
Replace
80 95
1.0~1.3 0.7~0.8
ENGINE ECM
9 25 CAN A Hi
10 26 CAN A Lo
CN-93
145LCR6ES03