3AC-10175-0 Tohatsu FUEL COOLER

Introduction
This document describes the available functions for the ADEM III Electronic Control Module (ECM) and for the interface with the customer control. All of the components that are shown in this document are shown in the unpowered state.Do not perform any procedure that is outlined in this Special Instruction until the entire Special Instruction has been read and understood.General Wiring
Illustration 1 g01260483
Basic connections for the power and the controls
Table 1
Customer Connector (40 Pin)    
Pin Number    Function    Engine Harness Wire (Identification)    
1     Positive Battery Power     150-OR-14    
2     Positive Battery Power     150-OR-14    
3     Shutdown Notify Relay Drive (Sinking)     E798-PK    
4     Air Shutoff Solenoid Drive (Sourcing)     G971-BR    
5     Start Enable Relay Drive (Sourcing)     F701-BR    
6     Local Cat Data Link (Data Minus)     892-BR    
7     Local Cat Data Link (Data Plus)     893-GN    
8     General Alarm Relay Drive (Sinking)     F700-BU    
9     Digital Sensor Return     998-BR    
10     Engine Speed Input (Throttle)     F702-GN    
11     Oil Temperature Sensor (Signal)     D839-YL    
12     Crank Relay (Return)     E799-BR    
14     Load Feedback     J782-GN    
15     Oil Temperature Sensor (Return)     200-BK    
16     Engine Shutdown (Signal "D")     F719-BR    
17     Engine Shutdown (Signal "C")     F715-PU    
18     Data Link Standby/Start Enable     G721-GY    
19     Air Temperature Sensor (Signal)     B472-YL    
20     Air Temperature Sensor (Return)     200-BK    
21     Torque Attenuation (Signal) (Fuel Position Multiplier)     G746-WH    
22     Ether Relay Drive (Sinking)     F710-GN    
23     start/run/stop Switch "1"     F716-WH    
24     start/run/stop Switch "2"     F717-YL    
25     Diagnostic Lamp Drive (Sinking)     F404-RD    
26     Prelube Pump Pressure Switch     F718-BU    
27     ECM (Keyswitch Input)     113-OR    
28     Magnetic Speed pickup (Signal)     SPD1-BK    
29     Magnetic Speed pickup (Return)     SPD2-CL    
30     Magnetic Speed pickup (Shield)     SPDS-SH    
31     CAN Data Link (Data Plus)     F711-GN    
32     CAN Data Link (Data Minus)     F712-GY    
33     CAN Data Link (Shield Ground)     A249-BK    
34     Negative Battery Power     229-BK-14    
35     Negative Battery Power     229-BK-14    
36     Prelube Pump Relay Drive (Sourcing)     F705-PK    
37     Prelube Pump Relay Return (-Bat)     A268-BK    
38     Ether Switch (Manual Override)     F720-PU    
39     Engine Protection Switch (Override)     N917-RD    
40     Torque Limit     F706-PU    
Illustration 2 g01219245
Illustration 2 shows the details of the power supply for the Electronic Control Module (ECM) and of connections to other components and systems on the vehicle. The connections for the power supply and for the engine throttle control must be made in order to have an engine system that functions.Using an externally controlled cranking system as shown in Illustration 2, requires the following Cat ET settings:
0 seconds for prelube
0 crank cyclesEmpty contact cavities in the customer harness connector must be plugged in order to keep out moisture.Refer to the engine Electrical Schematic for specific wire identifications and functions.Power Requirements and Grounding Considerations (Pins 1, 2, 27, 34, and 35)
Grounding Considerations