ROD ASSEM. 8J5668 - Caterpillar

If the vessel has two engines and one throttle that is designated as the master throttle, measure the resistance between the points that are listed in Table 4. Only perform the measurements that apply to the appropriate engine and throttle configuration. Be sure to wiggle the wires between the synchronization switch and the ECM as you make each measurement.
Table 4
Resistance Measurements for a Multiple Engine Configuration With One Throttle that is Designated as a Master Throttle    
Engine    Master Throttle    Synchronization Switch Position    Terminals    Expected Result    
Port     Port     Disabled     P1-35     P1-63     Open circuit    
P1-44 P1-63 Open circuit
Enabled P1-35 P1-63     Less than ten Ohms    
P1-44 P1-63 Open circuit    
Center Disabled     P1-35     P1-63     Open circuit    
P1-44 P1-63 Open circuit    
Enabled P1-35     P1-63     Open circuit    
P1-44 P1-63     Less than ten Ohms    
Starboard Disabled     P1-35     P1-63     Open circuit    
P1-44 P1-63 Open circuit    
Enabled P1-35     P1-63     Open circuit    
P1-44 P1-63     Less than ten Ohms    
Center     Port     Disabled     P1-35     P1-63     Open circuit    
P1-44 P1-63 Open circuit
Enabled P1-35 P1-63     Open circuit    
P1-44 P1-63 Less than ten Ohms    
Center Disabled     P1-35     P1-63     Open circuit    
P1-44 P1-63 Open circuit    
Enabled P1-35     P1-63     Less than ten Ohms    
P1-44 P1-63     Open circuit    
Starboard Disabled     P1-35     P1-63     Open circuit    
P1-44 P1-63 Open circuit    
Enabled P1-35     P1-63     Open circuit    
P1-44 P1-63     Less than ten Ohms    
Starboard     Port     Disabled     P1-35     P1-63     Open circuit    
P1-44 P1-63 Open circuit
Enabled P1-35 P1-63     Open circuit    
P1-44 P1-63 Less than ten Ohms    
Center Disabled     P1-35     P1-63     Open circuit    
P1-44 P1-63 Open circuit    
Enabled P1-35     P1-63     Open circuit    
P1-44 P1-63     Less than ten Ohms    
Starboard Disabled     P1-35     P1-63     Open circuit    
P1-44 P1-63 Open circuit    
Enabled P1-35     P1-63     Less than ten Ohms    
P1-44 P1-63     Open circuit    
If the vessel has two engines and a dedicated master throttle, measure the resistance between the points that are listed in Table 5. Only perform the measurements that apply to the appropriate engine and throttle configuration. Be sure to wiggle the wires between the Synchronization Switch and the ECM as you make each measurement.
Table 5
Resistance Measurements for a Multiple Engine Configuration With a Dedicated Master Throttle    
Synchronization Switch Position    Terminals    Expected Result    
Disabled     P1-35     P1-63     Open circuit    
P1-44 P1-63     Open circuit    
Enabled     P1-35     P1-63     Open circuit    
P1-44 P1-63     Less than ten Ohms    Expected Result:The resistance measurements are correct.Results:
OK - The resistance measurements are correct.Repair: Perform the following procedure:
Connect the J1/P1 connectors.
Attempt to synchronize the engines.
If