Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
1992 Ford Mustang L4-140 2.3L SOHCFACTORY OEM SERVICE PROCEDURE
Splice Locations
S100: Main Harness, Near Tape Out To G100
S102: Engine Harness, Near Tape Out To VIP Test Connector C199
S103: Dash Panel To Headlamp Junction Harness, Near Tape Out To Left Headlamp
S104: Dash Panel To Headlamp Junction Harness, Near Tape Out To G103
S105: Engine Harness, At Tape Out To C113
S106: Engine Harness, Near Tape Out To Fuse Links G, H, And J
S107: Engine Control Sensor Extension Harness, Near Tape Out To C101
S108: Dash Panel To Headlamp Junction Harness, Near Tape Out To G102
S109: Main Harness, Near Tape Out To Windshield Washer Pump Test Connector C1019
S110: Fuel Charge Harness, Near Tape Out To Fuel Injector NO. 2
S111: Main Harness, Near Tape Out To Windshield Washer Pump Test Connector C1019
S112: Engine Harness, Near Tape Out To Barometric Absolute Pressure (BAP) Sensor
S113: Engine Harness, Near Tape Out To C101
S114: Engine Control Sensor Extension Harness, Near C110
S116: Engine Harness, Near Tape Out To Octane Adjust Shorting Bar
S117: Engine Control Sensor Extension Harness, Near Tape Out To C101
S118: Dash Panel To Headlamp Junction Harness, Near Tape Out To G102
S119 (2.3L/4-140): Engine Harness, Near Tape Out To Clutch Cycling Pressure Switch
S119 (5.0L/V8-302): Engine Harness, Near Tape Out To EEC Power Relay
S120: Engine Control Sensor Extension Harness, Near Tape Out To Oil Pressure Switch
S121: Fuel Charge Harness, Near Tape Out To EGR Valve Position Sensor
S122: Fuel Charge Harness, Near Tape Out To Fuel Injector NO. 4
S123 (2.3L/4-140): Engine Harness, Near Tape Out To Barometric Absolute Pressure (BAP) Sensor
S123 (5.0L/V8-302): Engine Harness, Near Tape Out To Clutch Cycling Pressure Switch
S124: Engine Harness, Near Tape Out To C119
S125: Engine Control Sensor Extension Harness, Near Tape Out To SPOUT Check Connector C1009
S126: Engine Control Sensor Extension Harness, Near Tape Out To C101
S127: Main Harness, Near Tape Out To Fuse Link N
S128: Fuel Charge Harness, Near Tape Out To C119
S129: Main Harness, Near Tape Out To Windshield Washer Pump Test Connector C1019
S130: Dash Panel To Headlamp Junction Harness, Near Tape Out To G102
S131: Engine Control Sensor Extension Harness, Near Tape Out To C105
S132: Engine Harness, Near Tape Out To VIP Test Connector C198 And C199
S133: Dash Panel To Headlamp Junction Harness, Near Tape Out To Low Coolant Switch
S134: Engine Control Sensor Extension Harness, Near Tape Out To SPOUT Check Connector C1009
S135: Engine Control Sensor Extension Harness, Near Tape Out To C1034
S136: Engine Harness, Near Tape Out To Integrated Control Module
S137: Engine Harness, Near Tape Out To Integrated Control Module
S138: Engine Harness, Near Tape Out To Octane Adjust Shorting Bar
S140: Dash Panel To Headlamp Junction Harness, Near Tape Out To Integral Alternator Regulator (IAR)
S200: Main Harness, Near Tape Out To Fuse Panel
S201: Main Harness, Near Tape Out To Low Oil Warning Relay
S204: Main Harness, Near Tape Out To Fuse Panel
S205 (With Graphic Equalizer): Radio Power Booster And Equalizer Amplifier Harness, Near Tape Out To G203
S205 (Without Graphic Equalizer): Radio Speaker Jumper Harness, Near Tape Out To Radio
S206: Main Harness, Near Tape Out To Instrument Cluster, Connector C251
S207: Main Harness, Near Tape Out To Fuse Panel
S208: Main Harness, Near Tape Out To C251
S209: Main Harness, Near Tape Out To Ignition Switch
S212: Main Harness, Near Tape Out To Fuse Panel
S214: Main Harness, Near Tape Out To Blower Motor Switch
S215: Main Harness, Near Tape Out To Fuse Panel
S216: Main Harness, Near Tape Out To Clutch Interrupt Switch
S217: Engine Harness, Near Tape Out To Electronic Engine Control (EEC) Module
S218: Main Harness, Near Tape Out To Low Oil Warning Relay
S220: Main Harness, Near Tape Out To C251
S221: Main Harness, Near Tape Out To Blower Motor Resistor Assembly
S222: Main Harness, Near Tape Out To Ignition Switch
S223: Main Harness, Near Tape Out To C251
S224: Window Regulator Relay Switch Harness, Near Tape Out To C221
S225 (2 And 3 Door): Window Regulator Relay Switch Harness, Near Tape Out To C221
S225 (Convertible): Window Regulator Relay Switch Harness, Near Tape Out To C225
S226: Main Harness, At Tape Out To Low Oil Warning Relay
S227: Main Harness, At Tape Out To Low Oil Warning Relay
S228: Main Harness, Near Tape Out To C213
S229: Main Harness, Near Tape Out To Blower Motor Resistor Assembly
S230 (With Graphic Equalizer): Radio Power Booster And Equalizer Amplifier Harness, Near Tape Out To G203
S230 (Without Graphic Equalizer): Radio Speaker Jumper Harness, Near Tape Out To Radio
S231: Window Regulator Left Front Harness, Near Tape Out To C227
S233: Main Harness, In Tape Out To Fuse Panel
S237: Main Harness, Near Tape Out To C251
S300: Rear Lamp Harness, Near Tape Out To G300
S301: Rear Lamp Harness, Near Tape Out To Convertible Top Motor
S302: Seat Switch And Wire Assembly, Near Tape Out To C304
S303 (With Moonroof): Interior Lamp Harness, Near Tape Out To Dome Lamp
S303 (Without Moonroof): Interior Lamp Feed Harness, Near Tape Out To Right Vanity Mirror Lamp
S304: Rear Lamp Harness, Near Tape Out To G300
S305: Rear Lamp Harness, Near Tape Out To C309
S306: Sear Switch And Wire Assembly, Near Tape Out To C304
S400: Rear Lamp Harness, Near Tape Out To Right Backup Lamp
S401: Rear Lamp Harness, Near Tape Out To Left Rear Park/Stop Lamp
S402 (2 Door And Convertible): Luggage Compartment Lamp Harness, Near Tape Out To Left License Lamp
S402 (3 Door): Rear License Lamp Harness, Near Tape Out To C401
S403: Rear Lamp Harness, Near Tape Out To Right Rear Park/Stop Lamp
S404: Luggage Compartment Lamp Harness, Near Tape Out To Left License Lamp
S408: Rear Lamp Harness, Near Tape Out To C403
S411: Rear Lamp Harness, Near Tape Out To Left Backup Lamp
S412: Rear Lamp Harness, Near Tape Out To Left Rear Park/Stop Lamp
S500: Window Regulator Left Front Door Harness, Near Tape Out To Master Window Control Switch
S501: Window Regulator Left Front Door Harness, Near Tape Out To Master Window Control Switch
S600 (With Power Windows): Window Regulator Right Front Door Harness, Near Tape Out To Right Window Control Switch
S600 (With Power Windows): Right Front Door Harness, Near Tape Out To C606
S601 (With Power Windows): Window Regulator Right Front Door Harness, Near Tape Out To Right Window Control Switch
S601 (Without Power Windows): Window Regulator Right Front Door Harness, Near Tape Out To C606
S102: Engine Harness, Near Tape Out To VIP Test Connector C199
S103: Dash Panel To Headlamp Junction Harness, Near Tape Out To Left Headlamp
S104: Dash Panel To Headlamp Junction Harness, Near Tape Out To G103
S105: Engine Harness, At Tape Out To C113
S106: Engine Harness, Near Tape Out To Fuse Links G, H, And J
S107: Engine Control Sensor Extension Harness, Near Tape Out To C101
S108: Dash Panel To Headlamp Junction Harness, Near Tape Out To G102
S109: Main Harness, Near Tape Out To Windshield Washer Pump Test Connector C1019
S110: Fuel Charge Harness, Near Tape Out To Fuel Injector NO. 2
S111: Main Harness, Near Tape Out To Windshield Washer Pump Test Connector C1019
S112: Engine Harness, Near Tape Out To Barometric Absolute Pressure (BAP) Sensor
S113: Engine Harness, Near Tape Out To C101
S114: Engine Control Sensor Extension Harness, Near C110
S116: Engine Harness, Near Tape Out To Octane Adjust Shorting Bar
S117: Engine Control Sensor Extension Harness, Near Tape Out To C101
S118: Dash Panel To Headlamp Junction Harness, Near Tape Out To G102
S119 (2.3L/4-140): Engine Harness, Near Tape Out To Clutch Cycling Pressure Switch
S119 (5.0L/V8-302): Engine Harness, Near Tape Out To EEC Power Relay
S120: Engine Control Sensor Extension Harness, Near Tape Out To Oil Pressure Switch
S121: Fuel Charge Harness, Near Tape Out To EGR Valve Position Sensor
S122: Fuel Charge Harness, Near Tape Out To Fuel Injector NO. 4
S123 (2.3L/4-140): Engine Harness, Near Tape Out To Barometric Absolute Pressure (BAP) Sensor
S123 (5.0L/V8-302): Engine Harness, Near Tape Out To Clutch Cycling Pressure Switch
S124: Engine Harness, Near Tape Out To C119
S125: Engine Control Sensor Extension Harness, Near Tape Out To SPOUT Check Connector C1009
S126: Engine Control Sensor Extension Harness, Near Tape Out To C101
S127: Main Harness, Near Tape Out To Fuse Link N
S128: Fuel Charge Harness, Near Tape Out To C119
S129: Main Harness, Near Tape Out To Windshield Washer Pump Test Connector C1019
S130: Dash Panel To Headlamp Junction Harness, Near Tape Out To G102
S131: Engine Control Sensor Extension Harness, Near Tape Out To C105
S132: Engine Harness, Near Tape Out To VIP Test Connector C198 And C199
S133: Dash Panel To Headlamp Junction Harness, Near Tape Out To Low Coolant Switch
S134: Engine Control Sensor Extension Harness, Near Tape Out To SPOUT Check Connector C1009
S135: Engine Control Sensor Extension Harness, Near Tape Out To C1034
S136: Engine Harness, Near Tape Out To Integrated Control Module
S137: Engine Harness, Near Tape Out To Integrated Control Module
S138: Engine Harness, Near Tape Out To Octane Adjust Shorting Bar
S140: Dash Panel To Headlamp Junction Harness, Near Tape Out To Integral Alternator Regulator (IAR)
S200: Main Harness, Near Tape Out To Fuse Panel
S201: Main Harness, Near Tape Out To Low Oil Warning Relay
S204: Main Harness, Near Tape Out To Fuse Panel
S205 (With Graphic Equalizer): Radio Power Booster And Equalizer Amplifier Harness, Near Tape Out To G203
S205 (Without Graphic Equalizer): Radio Speaker Jumper Harness, Near Tape Out To Radio
S206: Main Harness, Near Tape Out To Instrument Cluster, Connector C251
S207: Main Harness, Near Tape Out To Fuse Panel
S208: Main Harness, Near Tape Out To C251
S209: Main Harness, Near Tape Out To Ignition Switch
S212: Main Harness, Near Tape Out To Fuse Panel
S214: Main Harness, Near Tape Out To Blower Motor Switch
S215: Main Harness, Near Tape Out To Fuse Panel
S216: Main Harness, Near Tape Out To Clutch Interrupt Switch
S217: Engine Harness, Near Tape Out To Electronic Engine Control (EEC) Module
S218: Main Harness, Near Tape Out To Low Oil Warning Relay
S220: Main Harness, Near Tape Out To C251
S221: Main Harness, Near Tape Out To Blower Motor Resistor Assembly
S222: Main Harness, Near Tape Out To Ignition Switch
S223: Main Harness, Near Tape Out To C251
S224: Window Regulator Relay Switch Harness, Near Tape Out To C221
S225 (2 And 3 Door): Window Regulator Relay Switch Harness, Near Tape Out To C221
S225 (Convertible): Window Regulator Relay Switch Harness, Near Tape Out To C225
S226: Main Harness, At Tape Out To Low Oil Warning Relay
S227: Main Harness, At Tape Out To Low Oil Warning Relay
S228: Main Harness, Near Tape Out To C213
S229: Main Harness, Near Tape Out To Blower Motor Resistor Assembly
S230 (With Graphic Equalizer): Radio Power Booster And Equalizer Amplifier Harness, Near Tape Out To G203
S230 (Without Graphic Equalizer): Radio Speaker Jumper Harness, Near Tape Out To Radio
S231: Window Regulator Left Front Harness, Near Tape Out To C227
S233: Main Harness, In Tape Out To Fuse Panel
S237: Main Harness, Near Tape Out To C251
S300: Rear Lamp Harness, Near Tape Out To G300
S301: Rear Lamp Harness, Near Tape Out To Convertible Top Motor
S302: Seat Switch And Wire Assembly, Near Tape Out To C304
S303 (With Moonroof): Interior Lamp Harness, Near Tape Out To Dome Lamp
S303 (Without Moonroof): Interior Lamp Feed Harness, Near Tape Out To Right Vanity Mirror Lamp
S304: Rear Lamp Harness, Near Tape Out To G300
S305: Rear Lamp Harness, Near Tape Out To C309
S306: Sear Switch And Wire Assembly, Near Tape Out To C304
S400: Rear Lamp Harness, Near Tape Out To Right Backup Lamp
S401: Rear Lamp Harness, Near Tape Out To Left Rear Park/Stop Lamp
S402 (2 Door And Convertible): Luggage Compartment Lamp Harness, Near Tape Out To Left License Lamp
S402 (3 Door): Rear License Lamp Harness, Near Tape Out To C401
S403: Rear Lamp Harness, Near Tape Out To Right Rear Park/Stop Lamp
S404: Luggage Compartment Lamp Harness, Near Tape Out To Left License Lamp
S408: Rear Lamp Harness, Near Tape Out To C403
S411: Rear Lamp Harness, Near Tape Out To Left Backup Lamp
S412: Rear Lamp Harness, Near Tape Out To Left Rear Park/Stop Lamp
S500: Window Regulator Left Front Door Harness, Near Tape Out To Master Window Control Switch
S501: Window Regulator Left Front Door Harness, Near Tape Out To Master Window Control Switch
S600 (With Power Windows): Window Regulator Right Front Door Harness, Near Tape Out To Right Window Control Switch
S600 (With Power Windows): Right Front Door Harness, Near Tape Out To C606
S601 (With Power Windows): Window Regulator Right Front Door Harness, Near Tape Out To Right Window Control Switch
S601 (Without Power Windows): Window Regulator Right Front Door Harness, Near Tape Out To C606
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.
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