3408E and 3412E Industrial Engines Caterpillar


Sensors and Electrical Connectors

Usage:

3412E 4CR

Table 1
Electrical Connectors    
Jack/Plug     Component    
J1/P1     ECM Connector    
J2/P2     ECM Connector    
J3/P3     Customer Connector    
J20/P20     Primary Engine Speed/Timing Sensor    
J21/P21     Coolant Temperature Sensor    
J22/P22     Engine Oil Pressure Sensor    
J23/P23     Turbocharger Outlet Pressure Sensor    
J26/P26     Timing Calibration Probe Connector    
J27/P27     Atmospheric Pressure Sensor    
J34/P34     Coolant Level Sensor    
J35/P35     Throttle Position Sensor    
J42     Service Tool Connector    
J43/P43     Fuel Temperature Sensor    
J44/P44     Secondary Engine Speed/Timing Sensor    
J45/P45     Injection Actuation Pressure Sensor    
J46/P46     Injection Actuation Pressure Control Valve    
J49/P49     Fuel Pressure Sensor    
J51/P51     Engine Oil Temperature Sensor    
J52/P52
to
J58/P58    
HEUI Injectors    
J60     Service Tool Connector    
J89/P89     Inlet Air Temperature Sensor    
J109/P109     Auxilary Pressure Sensor    
J114/P114     Auxilary Temperature Sensor    



Illustration 1g00862928

Electronic Control Module (ECM)




Illustration 2g00607253

ECM connector




Illustration 3g00607231

ECM connector




Illustration 4g00773864

Diagram of components




Illustration 5g00893641

Component locations

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