HEAD GP-HYDRAULIC CYLINDER 4944315 - Caterpillar

Illustration 2 g01322701
Harness connector for an injector
Table 3
Code     Connection for the Jumper    
1-5 or -6
through 6- 5 or -6     Terminal 1 and Terminal 3    
2602-5 or -6
through 2612-5 or -6     Terminal 2 and Terminal 4    
Table 4
Troubleshooting Test Steps    Values    Results    
7. Check the Injector Harness under the Valve Cover for an Open Circuit
A. Turn the keyswitch to the OFF position. A strong electrical shock hazard is present if the keyswitch is not turned off.
B. Remove electrical power from the engine ECM.
C. Determine the appropriate terminals for the solenoid with the code. Refer to Table 3 for the proper terminal connections. Connect a jumper wire between the terminal for the supply and the terminal for the return. The jumper wire will replace the injector solenoid with a short circuit.
D. Turn the keyswitch ON.
E. Activate the "Injector Solenoid Test". Allow the Injector Solenoid Test to continue until each solenoid is