CYLINDER AS 3659223 - Caterpillar

This engine uses high voltage to control the fuel injectors.Disconnect the fuel enable circuit connector to prevent personal injury.Do not come in contact with the fuel injector terminals while the engine is running.
Measure the resistance between the individual solenoid wires and engine ground at connector P2:For an engine with twelve cylinders, measure the resistance at the following points:
Measure the resistance between P2-5 and engine ground.
Measure the resistance between P2-11 and engine ground.
Measure the resistance between P2-12 and engine ground.
Measure the resistance between P2-16 and engine ground.
Measure the resistance between P2-17 and engine ground.
Measure the resistance between P2-18 and engine ground.
Measure the resistance between P2-21 and engine ground.
Measure the resistance between P2-22 and engine ground.
Measure the resistance between P2-26 and engine ground.
Measure the resistance between P2-27 and engine ground.
Measure the resistance between P2-28 and engine ground.
Measure the resistance between P2-31 and engine ground.
Measure the resistance between P2-32 and engine ground.
Measure the resistance between P2-33 and engine ground.
Measure the resistance between P2-34 and engine ground.
Measure the resistance between P2-37 and engine ground.
Measure the resistance between P2-38 and engine ground.
Measure the resistance between P2-40 and engine ground.Expected Result:The resistance should be greater than 20,000 Ohms.Results:
OK - The resistance is greater than 20,000 Ohms. Proceed to test step 11.
Not OK - The resistance is less than 20,000 Ohms. There is a problem in the wiring harness.Repair: Repair the connectors or wiring and/or replace the connectors or wiring. Stop.Test Step 7. Check the Spring and the Valve Lash.
Turn the circuit breaker for the battery to the OFF position.
Turn the ECS to the OFF/RESET position.
Check the Injector and the engine Valve Lash Setting. Refer to the Systems Operation.Results:
OK - The injectors and valve lash setting appear to be okay. Stop.
Not OK - A problem is found with the injector.Repair: Refer to Systems Operation. Stop.Test Step 8. Check the Diode Assembly.
Turn the circuit breaker for the battery to the OFF position.
Turn the ECS to the OFF/RESET position.
Set a voltmeter to the "diode check" setting. Remove the Diode Assembly J62 for Cylinder number 1.
Connect the positive lead to pin-1 and the negative lead to pin-4. The display should show a number less than 0.4 0.1.
Connect the positive lead to pin-2 and the negative lead to pin-3. The display should show a number less than 0.4 0.1.
Connect the negative lead to pin-1 and the positive lead to pin-4. The display should indicate an open circuit ".OL".
Connect the negative lead to pin-2 and the positive lead to pin-3. The display should indicate an open circuit ".OL".
Record the measurements of each pair. Continue testing the Diode Assemblies J63 through J73.Expected Result:The diode assembly should measure 0.4 0.1 VDC when the positive lead is connected to the anode and the negative lead is connected to the cathode of the diode. The diode assembly should measure ".OL" when the negative lead is connected to the anode and the positive lead is connected to the cathode of the diode.Results:
OK - The diode assembly is okay. Proceed to test step