ELECTRICAL SYSTEMS 4 D WIRING DIAGRAMS

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1 EECTRICA SYSTEMS 4 D WIRING DIAGRAMS

2 Table of Contents Page Wiring Colors for MerCruiser D- Wire Color Abbreviations D- Wiring Diagrams D- MCM./.X D- MCM V-6 Alpha Drive Engines D- MCM V-8 Alpha Drive Engines D-4 MCM V-8 Bravo Drive Engines D-5 Thunderbolt V D-6 MCM V-8Alpha and Bravo EFI and EFI/MP Engines D-7 MCM 5.7 EFI Bravo/MIE 5 Magnum Tournament Ski D-8 MCM 5.7 EFI Alpha D-9 MCM 5 EFI/MP Bravo D- 454/5 Magnum EFI Engine Diagram.. 4D- All EFI and EFI/MP Inboard and Ski Engines D- All MIE V-8 Inboard and Ski Engines.... 4D- MCM Quicksilver Instrumentation D-4 MIE Quicksilver Instrumentation D-5 Dual Station Wiring (Using a Neutral Safety Switch in Only one Remote Control).... 4D-6 Dual Station Wiring (Using A Neutral Safety Switch In both Remote Controls) D-7 Dual Station Wiring (Using a Neutral Safety Switch in Engine Wiring Harness) D-8 Gauges D-9 Battery Meter Gauge D-9 Cruiselog D-9 Fuel Gauge and Sender D-9 Audio Warning System D- Water Temperature Gauge D- Oil Pressure Gauge D- Clock D- EFI Wiring Diagram D- ECM Connector and Symptoms Charts.. 4D-6 ECM Connector and EFI Symptoms Chart.. 4D-7 4D- - WIRING - DIAGRAMS

3 Wiring Colors for MerCruiser Black Brown Orange t. Blue/White Gray Green/White Tan t. Blue Pink Brown/White Purple/White Red Red/Purple Red/Purple Orange Purple/Yellow BIA Color Code All Grounds Where Reference Electrode-MerCathode Anode Electrode-MerCathode Trim- Up Switch Tachometer Signal Trim - Down Switch Water Temperature Sender to Gauge Oil Pressure Sender to Gauge Fuel Gauge Sender to Gauge Trim Sender to Trim Gauge Trim- Trailer Switch Unprotected Wires from Battery Protected (Fused) Wires from Battery Protected (+V) to Trim Panel Alternator Output Ballast Bypass Purple Ignition Switch (+ V) Yellow/Red Wire Color Abbreviations Starter Switch to Starter Solenoid to Neutral Start Switch BU BRN GRY GRN ORN PNK RED TAN WHT YE IT DRK Black Blue Brown Gray Green Orange Pink Purple Red Tan White Yellow ight Dark WIRING DIAGRAMS - 4D-

4 Wiring Diagrams MCM.X NOTE : Gray lead for use with service tachometer. A -Ignition System -Distributor -Shift Cutout Switch -Filter 4 -Ignition Coil B -Starting System -Alternator -Electric Choke ( BB Only) -Ground Bolt 4 -Starter 5 -Circuit Breaker 6 -Starter Slave Solenoid C-Audio Warning System -Water Temperature -Drive Unit Oil evel (If Equipped) -Oil Pressure Switch D -Instrumentation System -Oil Pressure Sender -Water Temperature Sender -Trim Sender 4D- - WIRING DIAGRAMS

5 MCM V-6 Alpha Drive Engines WHT/RED WHT/GRN GRY A -Ignition System -Distributor -Shift Cutout Switch -Terminal Block 4 -Ignition Coil B -Starting System -Alternator -Electric Choke ( BB Only) -Ground Bolt 4 -Starter 5 -Circuit Breaker 6 -Starter Slave Solenoid 7 -Fuel Pump C-Audio Warning System -Water Temperature -Drive Unit Oil evel (If Equipped) -Oil Pressure Switch D -Instrumentation System -Oil Pressure Sender -Water Temperature Sender -Trim Sender WIRING DIAGRAMS - 4D-

6 MCM V-8 Alpha Drive Engines WHT/RED WHT/GRN GRY A -Ignition System -Distributor -Shift Cutout Switch -Terminal Block 4 -Ignition Coil B -Starting System -Alternator -Electric Choke ( BB Only) -Ground Bolt 4 -Starter 5 -Circuit Breaker 6 -Starter Slave Solenoid C-Audio Warning System -Water Temperature -Drive Unit Oil evel (If Equipped) -Oil Pressure Switch D -Instrumentation System -Oil Pressure Sender -Water Temperature Sender -Trim Sender 4D-4 - WIRING DIAGRAMS

7 MCM V-8 Bravo Drive Engines WHT/RED WHT/GRN GRY A -Ignition System -Distributor -Ignition Coil B-Starting and Charging Systems -Alternator -Ground Stud -Starter Motor 4 -Circuit Breaker 5 -Starter Slave Solenoid C -Audio Warning System -Water Temperature -Drive Unit Oil evel (If Equipped) -Oil Pressure Switch D -Instrumentation System -Oil Pressure Sender -Trim Sender -Water Temperature Sender WIRING DIAGRAMS - 4D-5

8 Thunderbolt V A C D B A - Ignition - Knock Sensor - Timing ead B - Starting, Charging and Choke - Alternator - Electric Choke - Ground Stud 4 - Starter Motor 5 - Circuit Breaker 6 - Starter Slave Soleniod C - Audio Warning System - Drive Unit Oil evel - Water Temperature - Oil Pressure Switch D - Instrumentation - Oil Pressure Sender - Water Temperture Sender - Trim Sender 4D-6 - WIRING DIAGRAMS

9 MCM V-8Alpha and Bravo EFI and EFI/MP Engines A B 5 c 4 a C b 769 A Audio Warning System - Drive Unit Oil evel - Oil Pressure Switch B Instrumentation System - Tirm Sender - Water Temperature Sender - Oil Pressure Sender C - Charging and Starting System - Starter Slave Solenoid - Ciccuit Breaker - Starter 4 - Ground Stud 5 - Alternator A - Charging and Starting Circuit B - Audio Warning/Power Reduction Circuit C - Instrumentation Senders a - Harness Connector to EFI System Harness b - Positive (+) Power Wire to EFI System Harness c - Auxiliary Tachometer ead WIRING DIAGRAMS - 4D-7

10 MCM 5.7 EFI Bravo/MIE 5 Magnum Tournament Ski NOTE: All black wires with a ground symbol are interconnected within the E.F.I. system harness. NOTE: Component position and orientation shown above is arranged for visual clarity and ease of circuit identification. - Vapor Separator Tank (VST) - Throttle Body - Distributor 4 - Coil 5 - Knock Sensor (KS) Module 6 - Data ink Connector (DC) 7 - Manifold Absolute Pressure (MAP) Sensor 8 - Knock Sensor 9 - Idle Air Control (IAC) -Throttle Position (TP) Sensor -Engine Coolant Temperature Sensor (ECT) -Electronic Control Module (ECM) -Fuel Pump Relay 4 -Ignition/System Relay 5 -Fuel Pump Fuse 6 -ECM/Ignition Feed/KS Module/Injectors Fuse 7 -ECM/DC/Battery Fuse 8 -Harness Connector To Starting/Charging Harness 9 Harness Connector To anyard Stop Switch (Optional) Harness Connector For Dual Engine Data ink Cable -Positive (+) Power Wire To Engine Circuit Breaker 4D-8 - WIRING DIAGRAMS

11 MCM 5.7 EFI Alpha NOTE: All black wires with a ground symbol are interconnected within the E.F.I. system harness. NOTE: Component position and orientation shown above is arranged for visual clarity and ease of circuit identification. - Vapor Separator Tank (VST) - Throttle Body - Distributor 4- Coil 5- Knock Sensor (KS) Module 6- Data ink Connector (DC) 7- Manifold Absolute Pressure (MAP) Sensor 8- Knock Sensor 9- Idle Air Control (IAC) -Throttle Position (TP) Sensor -Engine Coolant Temperature Sensor (ECT) -Electronic Control Module (ECM) -Fuel Pump Relay 4 -Ignition/System Relay 5 -Fuel Pump Fuse 6 -ECM/Ignition Feed/KS Module/Injectors Fuse 7 -ECM/DC/Battery Fuse 8 -Harness Connector To Starting/Charging Harness 9 Harness Connector To anyard Stop Switch (Optional) Harness Connector For Dual Engine Data ink Cable -Positive (+) Power Wire To Engine Circuit Breaker -Shift Cutout Switch WIRING DIAGRAMS - 4D-9

12 MCM 5 EFI/MP Bravo GRY NOTE: All black wires with a ground symbol are interconnected within the E.F.I. system harness. NOTE: Component position and orientation shown above is arranged for visual clarity and ease of circuit identification. - Vapor Separator Tank (VST) - Throttle Body - Distributor 4 - Coil 5 - Electronic Spark Control (KS) Module 6 - Data ink Connector (DC) 7 - Manifold Absolute Pressure (MAP) Sensor 8 - Knock Sensor 9 - Idle Air Control (IAC) - Throttle Position (TP) Sensor - Engine Coolant Temperature (ECT) Sensor - Electronic Control Module (ECM) - Fuel Pump Relay 4- Ignition/System Relay 5- Fuse (5 Amp) Fuel Pump 6- Fuse (5 Amp) ECM/DC/Battery 7- Fuse ( Amp) ECM/Injector/Ignition/Knock Module 8- -Harness Connector To Starting/Charging Harness 9- Harness Connector To anyard Stop Switch (Optional) - Harness Connector For Dual Engine Data ink Cable - Positive (+) Power Wire To Engine Circuit Breaker 4D- - WIRING DIAGRAMS

13 454/5 Magnum EFI Engine Diagram NOTE: All black wires with a ground symbol are interconnected within the EFI system harness. - Vapor Separator Tank (VST) - Throttle Body - Distributor 4 - Coil 5 - Knock Sensor (KS) Module 6 - Data ink Connector (DC) 7 - Manifold Absolute Pressure (MAP) Sensor 8 - Intake Air Temperature (IAT) Sensor 9 - Knock Sensor - Idle Air Control (IAC) - Throttle Position (TP) Sensor - Engine Coolant Temperature (ECT) Sensor - Electronic Control Module (ECM) 4- Fuel Pump Relay 5- Ignition Relay 6- Fuel Pump Fuse (5 Amp) 7- Injector Fuse (5 Amp) ECM, DC, Battery 8- ECM Fuse ( Amp) ECM/Ignition/Injector/Knock Sensor Module 9- Harness Connector to Starting/Charging Harness - Harness Connector to anyard Stop Switch (Optional) - Harness Connector for Dual Engine Data ink Cable - Positive (+) Power Wire to Engine Circuit Breaker WIRING DIAGRAMS - 4D-

14 All EFI and EFI/MP Inboard and Ski Engines A B NOTE 7 5 c C 4 a 6 b NOTE : Taped back brown and black wire may be used for an accessory. OAD MUST NOT EXCEED 5 AMPS A - Audio Warning System - Oil Pressure Switch - Transmission Fluid Temperature Switch B - Instrumentation System - Oil Pressure Sender - Water Temperature Sender C - Charging and Starting System - Alternator - Ground Stud - Starter 4 - Circuit Breaker 5 - Starter Slave Solenoid 6 - Neutral Safety Switch 7-9 Amp. System Fuse a - Positive Power Wire To EFI System Harness b - Harness Connector To EFI System Harness c - Auxiliary Tachometer ead 4D- - WIRING DIAGRAMS

15 All MIE V-8 Inboard and Ski Engines WHT/RED WHT/GRN GRY NOTE NOTE : Taped back brown and black wire may be used for an accessory. OAD MUST NOT EXCEED 5 AMPS A-Ignition System -Distributor -Ignition Coil B -Starting and Charging System -Alternator -Ground Stud -Starer Motor 4 -Circuit Breaker 5 -Neutral Safety Switch 6 -StarterSlave Solenoid C -Audio Warning System -Water Temperature -Transmission Fluid Temperture -Oil Pressure D -Instrumention System -Oil Pressure Sender -Water Temperature Sender WIRING DIAGRAMS - 4D-

16 MCM Quicksilver Instrumentation To Engine Harness 6 NOTE 9 NOTE NOTE 7 NOTE NOTE : Connect wires together with screw and hex nut. Apply Quicksilver iquid Neoprene to connection and slide rubber sleeve over connection. NOTE : Power for a second fused accessory panel may be taken from this connection. oad MUST NOT exceed 5-4 amps. Panel ground wire MUST BE connected to instrument terminal that has an 8 gauge black (ground) harness wire connected to it. - Tachomter - Audio Warning Buzzer (if Equipped) - Oil Pressure 4 - Water Temperature 5 - Battery Meter 6 - Ignition Switch 7 - Trim Indicator 8 - To Volt Source (purple wire connection) 9 - Ampere Fuse D-4 - WIRING DIAGRAMS

17 MIE Quicksilver Instrumentation B S I NOTE : Connect wires together with screw and hex nut. Apply Quicksilver iquid Neoprene to connection and slide rubber sleeve over connection. NOTE : Power for a second fused accessory panel may be taken from this connection. oad MUST NOT exceed 5-4 amps. Panel ground wire MUST BE connected to instrument terminal that has an 8 gauge black (ground) harness wire connected to it. - Tachomter - Audio Warning Buzzer (if Equipped) - Oil Pressure 4 - Water Temperature 5 - Battery Meter 6 - Ignition Switch 7 - To Volt Source (purple wire connection) 8 - Ampere Fuse WIRING DIAGRAMS - 4D-5

18 Dual Station Wiring (Using a Neutral Safety Switch in Only one Remote Control) A 4 5 GND T SW UNSW V SIG T GND GND GND T T V V V SEND SEND SEND GRY YE/RED GRY T. BU TAN NOTE YE/RED NOTE RED/ 4 5 BRN/WHT 7 ORN B S I GND T SW UNSW V SIG T GND GND T T V V V SEND SEND SEND GND YE/RED GRY T. BU TAN ORN RED/ NOTE YE/RED NOTE NOTE B NOTE NOTE YE/RED YE/RED BRN/WHT NOTE : Brown/white wire is taped back at instrument end. If installing on boat that is equipped with MerCruiser Stern Drive, brown/white wire is connected to trim sender terminal block. If installing on MerCruiser Inboard, brown/white wire is taped back at engine end, or it may be used for an accessory (limit 5 amperes) NOTE : An accessory fuse panel may be connected at this location. The combined current draw of the primary station and secondary station MUST NOT exceed 5 amperes. NOTE : Connect wires together with screw and hex nut. Apply Quicksilver iquid Neoprene to connection and slide rubber sleeve over connection. A - Secondary Station - Stop -Start Panel - Tachometer - Oil Pressure 4 - Water Temperature 5 - Battery Meter B - Primary Station - Ignition Switch - Tachometer - Oil Pressure 4 - Water Temperature 5 - Battery Meter 6 - To Engine 7 - Ampere Fuse 4D-6 - WIRING DIAGRAMS

19 Dual Station Wiring (Using A Neutral Safety Switch In both Remote Controls) A 4 5 GND T SW UNSW V SIG T GND GND GND T T V V V SEND SEND SEND GRY T. BU TAN YE/RED YE/RED NOTE GRY YE/RED NOTE NOTE RED/ 4 5 BRN/WHT 7 B S I GND T SWUNSW V SIG T GND GND GND T V T V V SEND SEND SEND ORN YE/RED GRY T. BU TAN ORN RED/ NOTE 6 NOTE YE/RED B YE/RED YE/RED NOTE NOTE BRN/WHT YE/RED NOTE NOTE : Brown/white wire is taped back at instrument end. If installing on boat that is equipped with MerCruiser Stern Drive, brown/white wire is connected to trim sender terminal block. If installing on MerCruiser Inboard, brown/white wire is taped back at engine end, or it may be used for an accessory (limit 5 amperes) NOTE : An accessory fuse panel may be connected at this location. The combined current draw of the primary station and secondary station MUST NOT exceed 5 amperes. NOTE : Connect wires together with screw and hex nut. Apply Quicksilver iquid Neoprene to connection and slide rubber sleeve over connection. 794 A - Secondary Station - Stop -Start Panel - Tachometer - Oil Pressure 4 - Water Temperature 5 - Battery Meter B - Primary Station - Ignition Switch - Tachometer - Oil Pressure 4 - Water Temperature 5 - Battery Meter 6 - To Engine 7 - Ampere Fuse WIRING DIAGRAMS - 4D-7

20 Dual Station Wiring (Using a Neutral Safety Switch in Engine Wiring Harness) A 4 5 GND T SW UNSW V SIG T GND GND GND T T V V V SEND SEND SEND GRY YE/RED GRY T. BU TAN NOTE YE/RED NOTE RED/ 4 5 BRN/WHT 7 B S I GND T SW UNSW V SIG T GND GND GND T V T V V SEND SEND SEND ORN YE/RED GRY T. BU TAN ORN RED/ NOTE 6 YE/RED NOTE NOTE B NOTE BRN/WHT YE/RED NOTE NOTE : Brown/white wire is taped back at instrument end. If installing on boat that is equipped with MerCruiser Stern Drive, brown/white wire is connected to trim sender terminal block. If installing on MerCruiser Inboard, brown/white wire is taped back at engine end, or it may be used for an accessory (limit 5 amperes) NOTE : An accessory fuse panel may be connected at this location. The combined current draw of the primary station and secondary station MUST NOT exceed 5 amperes. NOTE : Connect wires together with screw and hex nut. Apply Quicksilver iquid Neoprene to connection and slide rubber sleeve over connection. 794 A - Secondary Station - Stop -Start Panel - Tachometer - Oil Pressure 4 - Water Temperature 5 - Battery Meter B - Primary Station - Ignition Switch - Tachometer - Oil Pressure 4 - Water Temperature 5 - Battery Meter 6 - To Engine 7 - Ampere Fuse 4D-8 - WIRING DIAGRAMS

21 Gauges Battery Meter Gauge a Fuel Gauge and Sender e b c a d b c 784 a - amp Mounting Hole b - PE (or WHITE) Jumper Wire from This Terminal to I. (or+) Terminal on Water Temperature or Oil Pressure Gauge c - BACK Jumper Wire from This Terminal to Ground Terminal on Water Temperature or Oil Pressure Gauge Cruiselog a PNK e PNK 786 e : Connect terminal to Ignition or Accessory Terminal of Igni tion. e : Connect to Negative Battery Terminal or Suitable Ground. a - Tank Sender b - Sender Capsule c - Fuel Gauge (Black Case) b 785 a - Connect to Ignition Switch Volt Positive(+) Source (PE Wire) b - Connect to Negative ( ) Ground (BACK Wire) WIRING DIAGRAMS - 4D-9

22 Audio Warning System! WARNING Oil Pressure Gauge Buzzer is not external ignition-proof; therefore, DO NOT mount buzzer in engine or fuel tank compartments. d c b a RED c 789 a TAN/BU TAN/BU a - Ground (Black) b - Switched Volt Terminal (PE) c - Sender ead (IGHT BUE) b a - Audio Warning Buzzer b - Water Temperature Switch c - Oil Pressure Switch d - Volt Power Source 787 Clock Water Temperature Gauge c b b a a 788 a - Connect Wire (DARK BUE)to an Ignition Terminal of an Adjacent Gauge or to Any Switched Volt Terminal. b - Connect to Instrument Harness (RED/PE) ead and Slide a Rubber Sleeve over the Connection. c - Connect Wire (BACK) to a Terminal on an Adjacent Gauge or to Another Suitable Ground. c 789 a - Ground (BACK) b - Switched Volt Terminal (PE) c - Sender ead (TAN) 4D- - WIRING DIAGRAMS

23 Quicksilver Instrumentation For 454 Magnum EFI Ski NOTE : Connect wires together with screw and hex nut. Apply Quicksilver iquid Neoprene to connection and slide rubber sleeve over connection. NOTE : Power for a second fused accessory panel may be tasken from this connection. oad MUST NOT exceed 5-4 amps. Panel ground wire MUST BE connected to instrument terminal that has an 8 gauge black (ground) harness wire connected to it. - Tachomter - Audio Warning Buzzer (if Equipped) - Oil Pressure 4 - Water Temperature 5 - Battery Meter 6 - Ignition Switch 7 - To Volt Source (purple wire connection) 8 - Ampere Fuse WIRING DIAGRAMS - 4D-

24 EFI Wiring Diagram INJECTORS,, 5, DK BU A 5A INJECTORS, 4, 6, 7 DK GRN R 5A 87a IDE AIR CONTRO (IAC) VAVE 44 BU/WHT 44 BU/ 44 GRN/WHT 444 GRN/ DUA ENGINE DATA INK (MUTIPE ENGINE APPICATION ONY) C B A 96 YE J-5 MASTER/SAVE 46 ORN/ DC TO ECM/BAT FUSE 5A 44 ORN MAFUNCTION INDICATOR AMP EFI Wiring Diagram ( of 4) 4D- - WIRING DIAGRAMS

25 INTAKE AIR TEMPERATURE (IAT) INTAKE AIR TEMPERATURE (IAT) SENSOR SIGNA (TP) B C A ENGINE COOANT TEMPERATURE (ECT) ENGINE COOANT TEMPERATURE (ECT) SENSOR SIGNA EFI Wiring Diagram ( of 4) WIRING DIAGRAMS - 4D-

26 IC EST MODUE MODUE B A EECTRONIC IGNITION CONTRO SPARK TIMING (EST) 4 /WHT DIST. REFERENCE HIGH BYPASS DIST. REFERENCE OW 86 TO BUZZER TAN/BU D TAN TO IGN TO AUDIO WARNING SWITCHES BU/TAN C B PNK TO TACH GRY A WHT COOANT OVER- TEMP (TO BUZZER) OW OI PRESSURE/OW I/O FUID (TO BUZZER) 9 BRN J-6 TO OW OI PRESSURE AND GEAR UBE SWITCHES, TRANS. TEMPERATURE EFI Wiring Diagram ( of 4) 4D-4 - WIRING DIAGRAMS

27 TO IGN COI TERM B TO FUE PUMP REAY FUSE 5A SYSTEM/IGNITION REAY TO INJECTORS ECM BAT FUSE/ DC 5A A TO DC CONNECTOR 49 PNK/ KNOCK SENSOR (KS) MODUE KNOCK SENSOR (KS) A B ANYARD STOP SWITCH CIRCUIT EFI Wiring Diagram (4 of 4) WIRING DIAGRAMS - 4D-5

28 ECM Connector and Symptoms Charts The following charts is to aid in diagnosis of symptoms. These voltages were derived from a known good engine. The voltages shown were done with the electrical system intact and operational. These are voltage requirements to operate the different circuits.! CAUTION Do not attempt to obtain these voltages by probing wires and connectors. Serious damage could result in loss of engine operation or wiring damage. Voltages can vary with battery conditions. a J- J- Pin Input Connector J- J- Pin Output Connector a - Shaded Area Indicates Pin ocation That Is NOTE: Terminals J-7,J-, J-, and J-4 are not used on 5 EFI and 5 EFI/MP. IMPORTANT: The following conditions must be meet before testing.. Engine at operating temperature.. Engine running.. Scan tool not connected. THESE NOTES APPY TO FOOWING ECM CONNECTOR AND SYMPTOMS CHARTS. The B+ Symbol indicates a system voltage (battery). NOTE : Battery voltage for first two seconds, then volts. NOTE : Varies with temperature. NOTE : Varies with manifold vacuum. NOTE 4: Varies with throttle movement. NOTE 5: ess than.5 volt (5 mv). NOTE: Daul or mutliple engiens must share a common ground (-) for proper serial data communications. 4D-6 - WIRING DIAGRAMS

29 ECM Connector and EFI Symptoms Chart Pin J- J- J- J-4 J-5 J-6 J-7 J-8 J-9 J- J- J- J- J-4 J-5 Knock Sensor Signal ECT Signal Master Slave Discrete Switch Diagnostic Test Map Signal TP Signal Ignition Fused TP and IAT Ground ECM Ground TP 5V Reference Diagnostic Trouble Codes DTC(s) Pin Function Circuit (CKT) Number (#) Wire Color Normal Voltage Ignition ON Engine Running V 9.5V 4 4 YE.95V (NOTE ).95V (NOTE ) 4 Possible Symptoms Poor Fuel Economy, Poor Performance Detonation Poor Performance, Exhaust Odor, Rough Idle, RPM Reduction 96 YE B+ B+ None ack Of Data From Other Engine (Dual Engine Only) 9 BRN None Power Reduction Mode 45 WHT/ B+ B+ None Incorrect Idle, Poor Performance T GRN DK BU PNK/ 4.9V.6V (NOTE 4).46V (NOTE ).6V (NOTE 4) Poor Performance, Surge, Poor Fuel Economy, Exhaust Odor Poor Performance And Acceleration, Incorrect Idle B+ B+ None No Start 8 45 / WHT, None High Idle, Rough Idle, Poor Performance Exhaust Odor No Charge 46 GRY 5V 5V ack Of Power, Idle High J-6 Battery 44 ORN B+ B+ None No Start See Page 4D-6 For NOTES WIRING DIAGRAMS - 4D-7

30 ECM Connector and EFI Symptoms Chart Pin J-7 J-8 J-9 J- J- J- J- J-4 J-5 J-6 J-7 J-7 J-8 J-9 J- J- Serial Data anyard Stop Swtitch IAT Sensor MAP Ground ECM Ground MAP 5V Reference Diagnostic Trouble Codes DTC(s) Pin Function Circuit (CKT) Number (#) Wire Color Normal Voltage Ignition ON Engine Running Possible Symptoms 46 ORN/ 5V 5V None No Serial Data 94 PNK NONE No Start 47 TAN 5V (NOTE ) Poor Fuel Economy, Exhaust Odor / WHT None 46E GRY 5V 5V ack Of Performance,Exhaust Odor, Stall No Change ack Of Power, Surge, Rough Idle, Exhaust Odor J- Battery 44 ORN B+ B+ None No Start See page 4D-6 for NOTES 4D-8 - WIRING DIAGRAMS

31 ECM Connector and EFI Symptoms Chart Pin J- J- J- J-4 J-5 J-6 J-7 J-8 J-9 J- J- J- J- J-4 J-5 J-6 Injector Driver Ignition Control Ref. ow Port Fuel Jumper Ignition Control Ref. High Fuel Pump Relay Driver Audio Warrning IAC A ow IAC B ow Fuel Injector Ground Diagnostic Trouble Codes DTC(s) Pin Function Circuit (CKT) Number (#) Wire Color Normal Voltage Ignition ON Engine Running Possible Symptoms T GRN / RED B+ B+ None Rough Idle, ack Of Power, Stall None No Change 9 WHT / WHT DK GRN/ WHT 5V.6V None No Restart (NOTE &5) B+ None No Start DK GRN Coolant Overtemp (to Buzzer) See page 4D-6 for NOTES BU/ GRN/ WHT / WHT Usable Usable Usable Usable None None None Rough Unstable or Incorrect Idle Rough Unstable or Incorrect Idle No Change WIRING DIAGRAMS - 4D-9

32 ECM Connector and EFI Symptoms Chart Pin J-7 J-8 J-9 J- J- J- J- J-4 J-5 J-6 J-7 J-8 J-9 J- J- J- Fuel Injector Ground Injector Driver Port Fuel Jumper Ignition Control Signal Ignition Control Bypass Idle Air Control A High Ilde Air Control B ow Malfunction Indicator amp Diagnostic Trouble Codes DTC(s) Pin Function Circuit (CKT) Number (#) Wire Color Normal Voltage Ignition ON Engine Running Possible Symptoms / WHT DK BU None No Change B+ B+ None Rough Idle, ack Of Power, Stalling 9 WHT 4 WHT 44 TAN/.V 4 Stall, Will Restart In Bypass Mode, ack Of Power 4.5V 4 ack Of Power, Fixed Timing BU/ WHT GRN/ Usable Usable Usable Usable None None Rough Unstable or Incorrect Idle Rough Unstable or Incorrect Idle 49 See page 4D-6 for NOTES BRN/ WHT None amp Inoperative 4D- - WIRING DIAGRAMS

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