Hyundai HX145 LCR, Руководство пользователя, Страница: 408 / 702

6-53
8. MALFUNCTION OF NEGATIVE 1 PRESSURE SENSOR 8. MALFUNCTION OF NEGATIVE 1 PRESSURE SENSOR
Fault code : HCESPN 123, 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
33
MCU
CN-51
3
13
CD-70
NEGATIVE 1 PRESSURE SENSOR
SUPPLY
SIG
RETURN
A
B
C
CN-1
4
6
1
300L6MS11
·
Cause Remedy
Defective MCU
Short circuit or
poor connection
between CN-52-
(33)-CN-1(1)
Detective N1
pressure sensor
Short circuit or
poor connection
between CN-1(1)-
CD-70(B)
Short circuit or
poor connection
between
CD-70(A)-CN-1(4)
or CD-70(C)-CN-1
(6)
Short circuit or
poor connection
between CN-1(4)-
CN-51(3) or CN-1
(6) - CN-51(13)
Replace
Replace or repair
Replace or repair
Replace or repair
Replace or repair
Replace or repair
Check voltage
between CN-52
(33) - GND
YES
YES
YES
NO
NO
NO
SPEC :
Starting switch ON :
24
±
2V
SPEC :
Starting switch ON :
24
±
2V
Check voltage
between
CN-1(4)-(6)
Check voltage
between
CN-1(1)-GND
Check voltage
between
CD-70(A)-(C)
YES
NO
SPEC :
Actuator operating: 1~5V
See TEST 12
SPEC :
Actuator operating: 1~5V