KIT- 5390024 - Caterpillar

Which Generate This Code:This diagnostic code is recorded when the voltage of the sensor supply circuit (T930-WH-18) is above the normal range (nominal 8.3 VDC). Any sensor that is connected to this supply may not operate properly or the sensor may be damaged. If there is not a sensor connected, then this fault can be considered a nuisance fault. The possible causes of this diagnostic code are:
Circuit for +V (T930-WH-18) to the sensor is shorted to the battery
Faulty sensor.
Faulty ECMTest Step 1. CHECK THE SENSOR SUPPLY OUTPUT
Disconnect the Product Link input or output cable (J2) from the sensor cable.
Turn on the keyswitch.
Measure the sensor supply output voltage at J2-1.Expected Result:The output is less than 4 VDC in the off state and less than 9 VDC in the on state.Results:
OK - The output is less than 4 VDC in the off state and less than 9 VDC in the on state. The harness or the external sensor may be faulty. Proceed to Test Step 3.
NOT OK - The output is not less than 4 VDC in the off state and not less than 9 VDC in the on state. The Product Link cable has a possible short to the battery. Proceed to Test Step 2.Test Step 2. CHECK THE PRODUCT LINK HARNESS FOR A SHORT TO BATTERY
Turn off the keyswitch.
Keep the Product Link input or output cable disconnected from the cable for the sensor for the machine.
At the harness, measure the resistance from sensor supply contact J2-1 (+V) to the Product Link cable J1-1.Expected Result:The resistance is greater than 5000 ohms.Results:
OK - The resistance is greater than 5000 ohms. Proceed to Test Step 3.
NOT OK - The resistance is less than 5000 ohms. There is a short in the harness between J2-1 (T930-WH-18) and a battery source (J1-1).Repair: Repair or replace the harness.STOPTest Step 3. CHECK THE SENSOR CABLE FOR A SHORT TO BATTERY
Keep the Product Link input or output cable disconnected from the sensor cable.
At the sensor harness, measure the resistance from sensor supply contact J2-1 (+V) to battery power.Expected Result:The resistance is greater than 5000 ohms.Results:
OK - The resistance is greater than 5000 ohms. Proceed to Test Step 4.
NOT OK - The resistance is less than 5000 ohms. There is a short between the sensor and the source for the battery, or the sensor has failed resulting in a short to the battery.Repair: Replace or repair the harness or replace the sensor.STOPTest Step 4. CHECK IF THE DIAGNOSTIC CODE IS STILL ACTIVE
Clean the connector contacts.
Reconnect all connectors.
Turn on the keyswitch.
Operate the machine.
With Cat ET, determine if CID 0269 FMI 03 is present. Expected Result:CID 0269 FMI 03 is not present.Results:
OK - CID 0269 FMI 03 is not present. The problem was probably caused by a poor connection at a connector that was disconnected and reconnected. Resume machine operation.STOP
NOT OK - CID 0269 FMI 03 is present. The ECM may have failed.Repair: Perform this diagnostic test procedure again. If the cause of the diagnostic code is not found,