LINK AS-TRACK 3134541 - Caterpillar

Illustration 1 g00550731
ECMSystem OperationReference: Refer toTroubleshooting, "Pump Pressure Sensor".System Response:This fault can be active when the key start switch is in the ON position. When this fault is active and the all wheel drive system is ON (AUTOMATIC or MANUAL), the all wheel drive ECM will enter the diagnostic mode. The all wheel drive system will turn OFF and a category three warning will be activated.Test Step 1. Perform the following test: Machine Preparation for TroubleshootingResults:
OK - Proceed to test step 2.Test Step 2.
Calibrate the all wheel drive pressure sensor.How...Reference: Refer toTroubleshooting, "Calibration Of Pump Pressure Sensor".SpecificationsReference: Refer toTroubleshooting, "Sensor Wiring (All Wheel Drive)".Expected Result:The all wheel drive pressure sensor has been calibrated and the all wheel drive pressure sensor operates correctly.Results:
Yes - Stop.
No - Proceed to test step 3.Test Step 3.
Replace the all wheel drive pressure sensor. Use a new Caterpillar part for replacement.How...Reference: Refer toTroubleshooting, "Hydraulic Pump Pressure Sensor".Schematic...
Illustration 2 g00546356
PRESSURE SENSOR GRAPHICSpecificationsReference: Refer toTroubleshooting, "Sensor Wiring (All Wheel Drive)".PartsReference: Refer toTroubleshooting, "124-4672 SENSOR GP-PRESSURE PIN 1AL1-UP. PAYLOAD PART OF 8X-2519 VALVE & MTG GP-AWD ALSO FIELD INSTALLATION".Expected Result:The all wheel drive pressure sensor has been replaced.Results:
Repair Complete - Proceed to test step 4.Test Step 4.
Calibrate the all wheel drive pressure sensor.How...Reference: Refer toTroubleshooting, "Calibration Of Pump Pressure Sensor".SpecificationsReference: Refer toTroubleshooting, "Sensor Wiring (All Wheel Drive)".Expected Result:The all wheel drive pressure sensor has been calibrated and the all wheel drive pressure sensor operates correctly.Results:
Yes - Stop.