Harness for Engine's Display (Caterpillar, Cummins, and Detroit Engines)

Engine's Display

Figure 1.1 - Engine's Display

1). CAT Messenger Display (Caterpillar Engines)

CAT P/N: #2395025-12 (Display Module Group). Read More: How to Setting the New CAT Messenger Display?

Figure 1.2 - Back View (CAT Messenger Display)

#Connector

Un-switched Battery (+) ↔ Pin 1 ↔ Red

Battery (-) ↔ Pin 2 ↔ Black

Battery Switched (+) ↔ Pin 3 ↔ Red

Dimmer ↔ Pin 4 ↔ Purple

ATA (-) ↔ Pin 5 ↔ Blue

ATA (+) ↔ Pin 6 ↔ Yellow

J1939/ CAN (+) ↔ Pin 7 ↔ Yellow
J1939/ CAN (-) ↔ Pin 8 ↔ Green

NOTE: Installation and Operation of the CAT Messenger Driver Information Display (REHS1413-05), download here.

2). Murphy PowerView PV-101 (Caterpillar, Cummins, and Detroit Engines)

FW Murphy P/N: 78-70-0244 (PV101-A)

Figure 1.3 - Back View (Murphy PowerView)

#Connector

Battery (+) ↔ Pin 1 ↔ Red

J1939/ CAN (+) ↔ Pin 2 ↔ Yellow (Pin 2-3 installed with 120 ohms resistors)

J1939/ CAN (-) ↔ Pin 3 ↔ Green

J1939 (-)/ Shield ↔ Pin 4 ↔ Black

Dimmer ↔ Pin 5 ↔ Black

Battery (-) ↔ Pin 6 ↔ Black

NOTE: PowerView - Wiring Diagrams, download here.

 

3). Electronic Display Module/ EDM (Detroit Engines)

DDC P/N: 23517174 (EDM C&I)

Figure 1.4 - Back View (EDM)

#Connector

A ↔ Battery (+) ↔ wire jumper to connector C (Diagnostic Port) ↔ Red

B ↔ Battery (-) ↔ wire jumper to connector E (Diagnostic Port) ↔ Black

C ↔ J1708/ J1587 Hi (+) ↔ wire jumper to connector A (Diagnostic Port) ↔ Green/ Yellow

D ↔ J1708/ J1587 Lo (-) ↔ wire jumper to connector B (Diagnostic Port) ↔ Green

Read More: Diagnostic Port on Electronic Engines and Transmissions.

4). Electronic Engine Commander/ EEC (Detroit Engines)

Figure 1.5 - Front View (DD EEC)

#CONN A

A-1 ↔ DDEC Ignition Power ↔ DDC#439 ↔ Switched Battery (+) ↔ Pink

A-2 ↔ DDEC Accessory Ground ↔ DDC#953 ↔ Battery (-) ↔ Black/ White

A-3 ↔ DDEC Data Link (+) ↔ DDC#900 ↔ J1708/ J1587 Serial Link ↔ Green/ Yellow

A-4 ↔ DDEC Data Link (-) ↔ DDC#901 ↔ J1708/ J1587 Serial Link ↔ Green

Figure 1.6 - Inside View (DD EEC)

#CONN B

B-1 ↔ DDEC PGS Mode Select ↔ DDC#523 ↔ Output (Ground) to DDEC ↔ Gray/ Red ↔ SIGNALS DDEC TO TOGGLE BETWEEN PRESSURE AND RPM MODE.

B-2 ↔ OEM Interlock POS Input ↔ Input (+12 VDC) from OEM PARKING BRAKE/NEUTRAL (THROTTLE READY LED).

B-3 ↔ Cavity Plug ↔ No Connection.

B-4 ↔ DDEC PSG-PSI Mode Active ↔ DDC#499 ↔ Input (Ground) from DDEC ↔ Blue ↔ GROUND FROM DDEC WHEN PSG PRESSURE MODE IS ACTIVE (PRESSURE LED LIGHTS).

B-5 ↔ DDEC PSG Enable ↔ DDC#543 ↔ Output (Ground) to DDEC ↔ Orange/ Black ↔ GROUND TO DDEC TO TURN CRUISE CONTROL (PSG) ON (CRUISE ON/OFF CONTROL).

B-6 ↔ DDEC PSG Increase ↔ DDC#545 ↔ Output (Ground) to DDEC ↔ Blue/ Yellow ↔ GROUND TO DDEC TO INCREASE RPM/PRESSURE (RESUME/ACCEL INCREASE).

B-7 ↔ DDEC PSG Decrease ↔ DDC#541 ↔ Output (Ground) to DDEC ↔ Yellow/ Red ↔ GROUND TO DDEC TO DECREASE RPM/PRESSURE (SET/COAST DECREASE).

B-8 ↔ DDEC Cruise Active ↔ Input (Ground) from DDEC GROUND FROM DDEC TO EEC WHEN CRUISE CONTROL (PSG) SYSTEM IS ACTIVE.

B-9 ↔ ALARM  ↔ Output (Ground) to Alarm.

B-10 ↔ OK to PUMP Interlock POS Input  ↔ Input (+12 VDC) from OEM PTO ENGAGED/PUMP ENGAGED.

B-11 ↔ Cavity Plug ↔ No Connection.

B-12 ↔ Low Fuel ↔ Input (ground) from OEM.

DDC circuit numbers and port assignments shown are typical but can differ from application to application. Read More: Operating the Detroit Diesel Electronic Engine Commander (EEC).

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