(Table 215, contd)
Diagnostic Trouble Codes for Sensor Supplies
J1939
Code
PDL
Code
Code Description
(code descriptions may vary)
Comments
3509-3 262-3 Sensor Supply Voltage 1 : Voltage Above
Normal
The Electronic Control Module (ECM) detects the following
conditions:
The 5 VDC supply for the sensors is greater than 5.16 VDC for more
than one second.
The ECM has been powered for at least 3 seconds.
Diagnostic code 168-4 is not active.
The warning lamp will come on. The ECM sets all the sensors on the
5 VDC circuit to the default values.
The engine will be derated.
3510-3 2131-3 Sensor Supply Voltage 2 : Voltage Above
Normal
3509-4 262-4 Sensor Supply Voltage 1 : Voltage Below Normal The ECM detects the following conditions:
The 5 VDC supply for the sensors is less than 4.84 VDC for more
than one second.
The ECM has been powered for at least 3 seconds.
Diagnostic code 168-4 is not active.
The warning lamp will come on. The ECM sets all the sensors on the
5 VDC circuit to the default values.
The engine will be derated.
3510-4 2131-4 Sensor Supply Voltage 2 : Voltage Below Normal
Note: A 678-XX diagnostic code indicates a fault
in the 8 VDC circuit on the J1/P1 connector. A
3509-XX diagnostic code indicates a fault in the 5
VDC circuit on the J2/P2 connector. A 3510-XX
diagnostic code indicates a fault in the 5 VDC
circuit on the J1/P1 connector.
The following background information is related
to this procedure:
The ECM supplies regulated +5 VDC to the following
sensors on P2:1:
• Barometric pressure sensor
• Intake manifold air pressure sensor
• Fuel pressure sensor
• Engine oil pressure sensor
• NRS intake pressure sensor
• NRS differential pressure sensor
• NRS valve position sensor
• Exhaust Back Pressure Regulator (EBPR)
position sensor
A diagnostic code can be caused by the following
conditions:
• A short circuit in the harness
• A faulty sensor
• An open circuit in the harness
400 UENR4469-36
Circuit Tests
Copyright of Perkins Engine Company Limited. NOT FOR REPRINTING OR RESALE
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