HOSE AS 3043357 - Caterpillar

Turn the keyswitch to the OFF position.
Thoroughly inspect the harness connector P2/J2 and the suspect connector P532. Refer to Troubleshooting, "Electrical Connectors - Inspect" for details.
Perform a 45 N (10 lb) pull test on each of the wires in the solenoid connector P532 and the connector pins 25 and 26 that are associated with the fuel rail pump solenoid. Refer to illustration 2.
Check the harness for abrasions and for pinch points from the battery to the ECM. Check the harness for abrasions and for pinch points from the key switch to the ECM.
Use the electronic service tool in order to perform a "Wiggle Test". The "Wiggle Test"is used to identify intermittent connections.Expected Result:All connectors, pins, and sockets are completely coupled and/or inserted. The harness is free of corrosion, of abrasion, and of pinch points.Results:
OK - The connectors and the harness appear to be OK. Proceed to Test Step 2.
Not OK - There is a fault with the connectors and/or the harness.Repair: Repair the connectors or the harness and/or replace the connectors or the harness. Ensure that all of the seals are correctly in place and ensure that the connectors are completely coupled.Use the electronic service tool in order to clear all logged diagnostic codes and then verify that the repair has eliminated the fault.STOPTest Step 2. Check for Active Diagnostic Codes
Connect the electronic service tool to the diagnostic connector.
Turn the keyswitch to the ON position.
Use the electronic service tool to verify if any of the following diagnostic codes are active or recently logged:
1779-05 Fuel Rail #1 Pressure Valve Solenoid current below normal
1779-06 Fuel Rail #1 Pressure Valve Solenoid current above normalExpected Result:One or more of the following diagnostic codes are active or recently logged:
1779-05 Fuel Rail #1 Pressure Valve Solenoid current below normal
1779-06 Fuel Rail #1 Pressure Valve Solenoid current above normalResults:
1779-05 - Proceed to Test Step 3.
1779-06 - Proceed to Test Step 7.
Not OK - No active diagnostic codes or recently logged diagnostic codes are displayed.STOPTest Step 3. Check the Harness for an Open Circuit
Turn the keyswitch to the OFF position.
Disconnect P2 from the ECM.
Measure the resistance betweenP2:25 and P2:26.Expected Result:The nominal resistance is less than 2.0 Ohms.Results:
OK - The harness and the solenoid do not have