PIN AS 5047576 - Caterpillar

Illustration 2 g01365435
Terminal locations at the P2 ECM connector for the sensor supply (P2-17) Analog return (P2-29) Digital sensor supply (P2-54) Analog return (P2-72) Analog sensor supply (P2-80) Analog sensor supply (P2-92) Digital return
Illustration 3 g01159881
Terminal locations at the sensor connector for the sensor supply (Terminal A) Sensor supply (Terminal B) Sensor return (Terminal C) Sensor signal
Perform a 45 N (10 lb) pull test on each of the wires in the ECM connectors that are associated with the circuit.
Check the allen head screw for each of the ECM connectors for the proper torque. Refer to Troubleshooting, "Electrical Connectors - Inspect" for details.
Check the harness and wiring for abrasion and for pinch points from the sensors back to the ECM.Expected Result:All connectors, pins and sockets are completely coupled and/or inserted and the harness and wiring are free of corrosion, of abrasion and of pinch points.Results:
OK - The harness and connectors appear to be OK. Proceed to Test Step 2.
Not OK - There is a problem with the connectors and/or wiring.Repair: Repair the connectors or wiring and/or replace the connectors or wiring. Ensure that all of the seals are properly in place and ensure that the connectors are completely coupled.Verify that the repair eliminates the problem.STOPTest Step 2. Check for Active Diagnostic Codes
Connect Caterpillar Electronic Technician (ET) to the service tool connector.
Restore electrical power to the ECM.
Monitor the active diagnostic code screen on Cat ET. Check and record any active diagnostic codes. Look for the following diagnostic codes:
41-3
41-4
100-10
262-3
262-4
1785-10Note: Wait at least 30 seconds in