Manual

Unofficial

Electronic Fire Commander (EFC) Wiring

MATING CONNECTOR 1: DT06-4S

CAVITY CIRCUIT DESCRIPTION DDC# EFC INPUT/OUTPUT

A-1 DDEC Ignition Power 439 (+) System Power

A-2 DDEC Accessory Ground 953 (-) System Ground

A-3 DDEC #900 Data Link (+) 900 J1587 Serial Link

A-4 DDEC #901 Data Link (-) 901 J1587 Serial Link

ATING CONNECTOR 2: DT06-12S

CAVITY CIRCUIT DESCRIPTION DDC#/PORT EFC INPUT/OUTPUT

B-1 DDEC PGS Mode Select 523/H1 Output (ground) to DDEC

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 499/F3 Input (ground) from DDEC

GROUND FROM DDEC WHEN PSG PRESSURE MODE IS ACTIVE (PRESSURE LED LIGHTS)

B-5 DDEC PSG Enable 543/G2 Output (ground) to DDEC

GROUND TO DDEC TO TURN CRUISE CONTROL (PSG) ON (CRUISE ON/OFF CONTROL)

B-6 DDEC PSG Increase 545/G3 Output (ground) to DDEC

GROUND TO DDEC TO INCREASE RPM/PRESSURE (RESUME/ACCEL INCREASE)

B-7 DDEC PSG Decrease 541/J1 Output (ground) to DDEC

GROUND TO DDEC TO DECREASE RPM/PRESSURE (SET/COAST DECREASE)

B-8 DDEC Cruise Active ----Y3 Input (ground) from DDEC

GROUND FROM DDEC TO EFC 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.

MANUALS\EFC\EFC_OPS.PM65..022798