Hyundai HX145 LCR, Manual

Page: 416 / 702

6-61
12. MALFUNCTION OF BOOM UP PRESSURE SENSOR 12. MALFUNCTION OF BOOM UP PRESSURE SENSOR
Fault code : HCESPN 127, FMI 0~4
Before carrying out below procedure, check all the related connectors are properly inserted.
INSPECTION PROCEDURE INSPECTION PROCEDURE
※
1) 1)
Wiring diagram Wiring diagram
CN-52
19
MCU
CN-51
3
13
SUPPLY
SIG
RETURN
A
B
C
CD-32
BOOM UP PRESSURE SENSOR
300L6MS19
·
Cause Remedy
Defective MCU
Detective boom up
pressure sensor
Short circuit or
poor connection
between CN-52
(19)-CD-32 (B)
Short circuit or
poor connection
between CD-32
(A)-CN-51(3) or
CD-32(C)- CN-51
(13)
Replace
Replace or repair
Replace or repair
Replace or repair
Check voltage
between CN-52
(19) - GND
YES
YES
NO
SPEC :
Starting switch ON :
24
±
2V
Check voltage
between CD-32
(A)-(B)
SPEC :
Actuator operating: 1~5V
See TEST 16
NO