PleasureCraft Engine Group 5.0L, Diagnostic Manual

Page: 320 / 337

7 - 24 Symptoms 5.0/5.7/6.0/8.1L
MEFI 4 - PCM
J1-01 Knock Sensor 2 468 lt blu/blu Knock 44 Poor Fuel Economy,
Signal (6.0/8.1L Only) Sensor 2 Poor Performance
J1-02 Diagnostic “Test” 451 blk/wht Data Link None Incorrect Idle, Poor Performance
Terminal Connector
J1-03 Master/Slave 916 yel Twin Engine None Lack of Data From Other
Connector Engine
J1-04 General Warning 2 blu/wht oil press. switch None RPM Reduction
J1-05
J1-06 Fuel Pump Relay 465 dk Fuel Pump None No Start
Driver grn/wht Relay
J1-07
J1-08 Buzzer (Optional) 914 ppl In-Line Boat None Loss of Instrument Indicator
Harness Harness
J1-09 Check Gauges 112 dk grn In-Line Boat None Loss of Instrument Indicator
(Optional) Harness
J1-10
J1-11 Injector Driver B 468 dk blu Injectors None Rough Idle, Lack of
Power, Stalling
J1-12
J1-13 ECM Ground 450 blk Engine Block None An open ground or high
resistance ground may cause
any or all symptoms.
J1-14 Tachometer Output gry In-Line Boat None Loss of tachometer reading
Signal Harness
J1-15 IAC “B” Low 444 grn/blk IAC Valve None Rough, Unstable or Incorrect Idle
J1-16 IAC “A” High 441 blu/wht IAC Valve None Rough, Unstable or Incorrect Idle
J1-17 Knock Sensor 1 467 dk blu Knock 44 Poor Fuel Economy,
Signal Sensor 1 Poor Performance
J1-18 Not Used
J1-19 General Warning 1 920 lt blu Transmission None RPM Reduction
(Optional) Overtemp Switch
J1-20
J1-21
J1-22 General Warning 1 912 dk blu Warning Cluster None Loss of Instrument Light
Lamp (Optional) Connector
J1-23 General Warning 2 911 dk grn Warning Cluster None Loss of Instrument Light
(Optional) Connector
J1-24
J1-25
J1-26 Injector Driver A 467 dk blu Injectors None Rough Idle, Lack of
Power, Stalling
J1-27 Malfunction Indicator 419 brn/wht DLC None MIL Inoperative
Lamp
J1-28 ECM Ground 450 blk Engine Block None An open ground or high
resistance ground may cause
any or all symptoms.
ECM Connector “J1”
CKT Wire Component DTC(s) Possible Symptoms
Pin Function No. Color Connector Affected From Faulty Circuit