Hyundai HX145LCR Manual page 389

11. WHEN TRAVEL SPEED 1, 2 DOES NOT OPERATE (HCESPN 167, FMI 4 or 6) 11. WHEN TRAVEL SPEED 1, 2 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 and
short of fuse No. 24.
·After checking, insert the disconnected connectors again immediately unless otherwise specified.
YES Check fault code
167 active?
Starting switch : ON
Check if travel
speed lamps( ,
) change when
pressing the travel
speed switch on
the cluster
Starting switch : ON
Check MCU
NO
Starting switch : ON
Check resistance
YES
between CN-70
(1) and (2)
Starting switch : OFF
Spec : 30Ω
Disconnect CN-70
Check voltage
between CN-70
NO
(1) and (2)
Starting switch : ON
Spec : 20~30 V
Disconnect CN-70
YES
Y R G
NO
MCU
20
CN-52
YES
NO
YES
NO
FUSE
NO.24
TRAVEL SOLENOID
2
1
CN-70
6-34
Cause Remedy
Disconnection in Repair or replace
wiring harness or
poor contact
between CN-70-
CN-52
Defective solenoid Replace
Defective hydraulic Check hydraulic
system system
Repair or replace
Disconnection in
wiring harness or
poor contact
between CN-70-
fuse No. 24
Replace
Defective cluster
Replace
Defective MCU
145LCR6ES12