Hyundai HX130LCR Manual page 374

7. MALFUNCTION OF PUMP 3 PRESSURE SENSOR
Before carrying out below procedure, check all the related connectors are properly inserted.
※
1) INSPECTION PROCEDURE
YES
Check voltage
between CN-52
(32) - GND
SPEC :
Actuator operating: 1~5V
See TEST 11
Check voltage
between
NO
CN-1(4)-(6)
SPEC :
Starting switch ON :
24±2V
Wiring diagram
CN-51
3
13
MCU
32
CN-52
YES
SPEC :
Actuator operating: 1~5V
Check voltage
YES
between
CD-44(A)-(C)
SPEC :
Starting switch ON :
24±2V
NO
NO
4
7
6
CN-1
6-51
Defective MCU
YES
Short circuit or
poor connection
Check voltage
between CN-52-
between
(32)-CN-1(7)
CN-1(7)-GND
Detective P3
NO
pressure sensor
Short circuit or
poor connection
between CN-1(7)-
CD-44(B)
Short circuit or
poor connection
between
CD-44(A)-CN-1(4)
or CD-44(C)-CN-1
(6)
Short circuit or
poor connection
between CN-1(4)-
CN-51(3) or CN-1
(6) - CN-51(13)
CD-44
A
SUPPLY
B
SIG
C
RETURN
PUMP 3 PRESSURE SENSOR
Cause Remedy
Replace
Replace or repair
Replace or repair
Replace or repair
Replace or repair
Replace or repair
300L6MS09