Hyundai HX140L, Manual

Page: 533 / 819

6-69-16
9. MALFUNCTION OF NEGATIVE 2 PRESSURE SENSOR (SERIAL NO. : #0611-)
Fault code : HCESPN 124, FMI 0~4
Before carrying out below procedure, check all the related connectors are properly inserted.
INSPECTION PROCEDURE
侍
1)
Wiring diagram
28
UNITED MCU
NEGATIVE 2 PRESSURE SENSOR
CN-51
32
31
CD-71
SUPPLY
SIG
RETURN
A
B
C
CN-1
4
6
2
140L6MS113
余
Cause Remedy
Defective united
MCU
Short circuit or
poor connection
between CN-51-
(28)-CN-1(2)
Detective N2
pressure sensor
Short circuit or
poor connection
between CN-1 (2)-
CD-71 (B)
Short circuit or
poor connection
between
CD-71 (A)-CN-1
(4) or CD-71 (C)-
CN-1 (6)
Short circuit or
poor connection
between CN-1 (4)-
CN-51 (32) or
CN-1 (6) - CN-51
(31)
Replace
Replace or repair
Replace or repair
Replace or repair
Replace or repair
Replace or repair
Check voltage
between CN-51
(28) - GND
YES
YES
YES
NO
NO
NO
SPEC :
Starting switch ON :
24
佳
2V
SPEC :
Starting switch ON :
24
佳
2V
Check voltage
between
CN-1 (4)-(6)
Check voltage
between
CN-1 (2)-GND
Check voltage
between
CD-44 (A)-(C)
YES
NO
SPEC :
Actuator operating: 1~5V
See TEST 13
SPEC :
Actuator operating: 1~5V