3176B MARINE ENGINE ELECTRONIC CONTROL SYSTEM INCLUDES COMPUTERIZE Caterpillar

Transmission Oil Temperature Sensor and Oil Pressure Sensor

Example of connecting the 100-3055 Transmission Temperature Sensor and the 3E6114 Transmission Oil Pressure Sensor.

Connecting the Transmission Sensors and Customer Connector J19 (HD)

1. Install 100-3055 Transmission Temperature Sensor.

2. Install 3E6114 Transmission Oil Pressure Sensor.

NOTE: Oil pressure sensor MUST be mounted in transmission oil cooler return line (to transmission).

3. Connect from J19 Pin-1 to P19A Pin-A of the transmission temperature sensor.

4. Connect from J19 Pin-2 to P19A Pin-B of the transmission temperature sensor.

5. Connect from J19 Pin-3 to P19A Pin-C of the transmission temperature sensor.

6. Connect from J19 Pin-4 to P19B Pin-A of the transmission oil pressure sensor.

7. Connect from J19 Pin-5 to P19B Pin-B of the transmission oil pressure sensor.

8. Connect from J19 Pin-6 to P19B Pin-C of the transmission oil pressure sensor.

NOTE: Refer to Customer Specified Parameters, in this instruction, for selecting the high temperature oil temperature and pressure set points.

Trolling Mode

Trolling Mode Connection.

NOTE: There is no actual (physical) switch. Connection to (-)Battery should be made automatically when trolling valve is activated.

When the marine gear is in Trolling Mode, the trolling valve activation MUST automatically connect to (-)Battery Bus Bar, which will limit engine speed to programmed value (from 900 to 1200 rpm).

Connect (-)Battery Bus Bar through the trolling valve to Pin-8 (Trolling Mode) of the J1 Customer Connector.

Programming the Trolling Mode

Maximum trolling speed can be programmed using a Caterpillar Electronic Control Analyzer Programmer (ECAP) Service Tool.

Refer to Customer Specified Parameters in this publication, SENR6500 Electronic Troubleshooting Manual (from SENR6505 Service Manual) and SEHS9199 Tool Operating Manual for NEXG4516 Marine Engine Functions Service Program Module (SPM).

Slow Vessel Switch

When the switch is activated, the ECM will limit engine speed to idle below programmed LOW IDLE speed. During this mode of operation, the idle speed will drop to 550 rpm to allow pilot better vessel maneuverability during docking or no-wake zones.

Slow Vessel Switch Connection.

1. Connect (-)Battery Bus Bar to the normally open (N/O) contact of the Slow Vessel Switch.

2. Connect from Pin-19 (Slow Vessel) of J1 Customer Connector to the common contact of the Slow Vessel Switch.

Maintenance Clear Switch

The Maintenance Clear Switch is required to reset the maintenance indicator diagnostic after engine maintenance has been performed.

Maintenance Clear Switch Connection.

1. Connect from (-)Battery Bus Bar to the normally open (N/O) contact of the Maintenance Clear Switch.

2. Connect from Pin-20 of J1 Customer Connector to the Common of the Maintenance Clear Switch.

Remote Tachometer Installation

Remote Tachometer Connection Schematic.

1. Connect from J1 Customer Connector Pin-17 to Signal Input 1 of the Tachometer.

2. Connect from J1 Customer Connector Pin-11 to Signal Input 2 of the Tachometer.

NOTE: Either one of the two signal lines from the ECM can be used for tachometers with a single input terminal. The remaining line should be left disconnected.

3. Connect from (+)Battery Bus Bar to the (+)Battery input of the Tachometer.

4. Connect from (-)Battery Bus Bar to the (-)Battery input of the Tachometer.

5. Connect an ECAP to the J4 ATA data link Connector and proceed to the Customer Parameters Screen. Calibrate the ECM signal to the pulses per revolution (ppr) of your tachometer signal.

NOTE: For the 7E3156 or 7C1072 Tachometer, the tachometer engine speed calibration is 113 ppr. The ECM must be programmed to this value. If another manufacturer's tachometer is used, it must meet SAE J1809 signal requirements and the ECM must be programmed to the tachometer signal value.

Hour Meter Installation

Hour Meter Connection Schematic.

1. Connect from J1 Customer Connector Pin-10 to the positive terminal of the hour meter.

2. Connect from J1 Customer Connector Pin-16 to the negative terminal of the hour meter.

Installing ECAP Connector

The Electronic Control Analyzer Programmer (ECAP) is powered by 24 VDC through the J4 ATA connector. Use the following procedures to connect the ECAP to the engine.

Data link connections Schematic.

1. Connect (+)Battery Bus Bar to Pin-A of the 9W1951 Flange Receptacle.

2. Connect (-)Battery Bus Bar to Pin-B of the 9W1951 Flange Receptacle.

NOTE: The ATA data link wires should be a twisted pair of 16 AWG wire, with approximately three twists per 25.4 mm (1.00 in). The length should NOT exceed 40 m (130 ft).

3. Connect from Pin-7 of the J1 Customer Connector to Pin-J of the 9W1951 ATA data link flange receptacle.

4. Connect from Pin-1 of the J1 Customer Connector to Pin-H of the 9W1951 ATA data link flange receptacle.

5. If shielded wire is used, ONE end of shield MUST be connected to (-)Battery Bus Bar.

6. The ECAP may be connected to the ECM at J4 ATA Data Link connector. Only one side of the "T" harness connector cable is used.

NOTE: Remove the 8C6354 Cap on J4 connector and replace after testing has been completed.

7. Connect the opposite end of the "T" harness to the ECAP.

NOTE: The ECAP will operate with the engine running, or with the engine OFF, key ON.