Hyundai HX130LCR Manual page 352

6. WHEN ENGINE OIL PRESSURE WARNING LAMP LIGHTS UP (engine is started)
·Before disconnecting the connector, always turn the starting switch OFF.
·Before carrying out below procedure, check all the related connectors are properly inserted.
·After checking, insert the disconnected connectors again immediately unless otherwise specified.
NO Fault code 100-
3, 4 active?
Starting switch : ON
Fault code 100-
1, 17, 18 active?
Starting switch : ON
YES
SERVICE TOOL
CAN-A_Hi G
CAN-A_Lo
F
CDL-
E
CDL+
D
B
GND
CN-126A
NO
YES
6 7
5 8
3 41
2 42
1 27
CN-126
CN-5
6-29
Cause
Defective circuit,
sensor or ECM.
Voltage above or
below normal
Low engine oil
pressure
ENGINE ECM
MCU
31
21
46
24
47
34
CN-94
16
CN-51
Remedy
Contact Perkins.
Refer to engine
fault code 100-3, 4
Refer to engine
fault code 100-1,
17, 18
CAN 1 Hi
CAN 1 Lo
130ZF6ES03