WIPER GP-WINDOW 4885867 - Caterpillar

Table 1
J1939 Code and Description CDL Code and Description Comments
3509-3
Sensor Supply Voltage 1 : Voltage Above Normal 262-3
5 Volt Sensor DC Power Supply : Voltage Above Normal The code is logged.
All sensors are set to default values.
3509-4
Sensor Supply Voltage 1 : Voltage Below Normal 262-4
5 Volt Sensor DC Power Supply : Voltage Below Normal
3510-3
Sensor Supply Voltage 2 : Voltage Above Normal 2131-3
5 Volt Sensor DC Power Supply #2 : Voltage Above Normal The code is logged.
All sensors are set to default values.
3510-4
Sensor Supply Voltage 2 : Voltage Below Normal 2131-4
5 Volt Sensor DC Power Supply #2 : Voltage Below Normal System Operation The ECM supplies a regulated voltage of 5.0 0.2 VDC to the analog sensors.The supply voltage for the sensors is routed from the ECM to terminal 1 of each sensor connector. The sensor return for the sensors is routed from the ECM to terminal 2 of each sensor connector. The ECM provides short circuit protection for the internal power supply. A short circuit to the battery will not damage the internal power supply.Note: The sensors are not protected from overvoltage. A short from the supply line to the +Battery may damage the sensors. Repair the sensor supply and check for any active sensor diagnostic codes in order to determine if a sensor has failed.
Table 2
Sensor Supply Sensor Supply ECM Location
Sensor Supply #1 Sensors on A4:E4 aftertreatment ECM J2 connector
Sensor Supply #2 Sensors on A4:E4 aftertreatment ECM J1 connector
Table 3
Troubleshooting Test Steps Values Results
1. Determine the Code
A. Connect Caterpillar Electronic Technician (ET) to the service tool connector. Refer to Troubleshooting, "Electronic Service Tools", if necessary.
B. Turn the keyswitch to the ON position.
C. Determine if a diagnostic trouble code is present.
Diagnostic Codes
Result: A -3 or -4 code is present.
Note which connector is reporting the active sensor supply code.
Proceed to Test Step 2.
2. Check for a Failed Sensor
A. Connect to Cat ET.
B. Turn the keyswitch to the ON position.
C. Disconnect a sensor on the suspect sensor supply circuit.
D. Monitor Cat ET while the sensor is disconnected to see if the active code changes to logged.
E. Connect the suspect sensor to the wiring harness
F. Repeat steps C through E for each sensor on the suspect sensor supply.
Failed Sensor
Result: The suspect sensor supply active code changes to logged when a sensor is unplugged.
Repair: Replace the failed sensor.
Verify that the repair eliminated the problem.
Result: The suspect sensor supply active code remains active after all sensors on the sensor supply circuit have been checked.
A failed wiring harness has been detected.
Repair: Repair or replace the wiring harness.
Verify that the repair eliminated the problem.
If the procedure did not correct the issue, contact your Cat dealer Technical Communicator (TC). For further assistance, your TC can confer with the Dealer Solutions Network (DSN).