Section 18-01: Wiring and Circuit Protection
1994 Mustang Workshop Manual
REMOVAL AND INSTALLATION

Wiring Harnesses

Refer to the illustrations for the harness being replaced while performing the following removal and installation procedures.

 

Removal

  1. Disconnect battery ground cable (14301) .

    NOTE: Refer to Section 01-05 if it is necessary to remove any trim panels to gain access to the harness.

  1. Disconnect all wiring harness connectors.
  1. Disengage harness from all locators, straps and/or clips as necessary, including ground wire eyelets. Remove harness from vehicle.
 

Installation

  1. Position harness in vehicle. Ensure harness is engaged in all locators, straps, and/or clips.
  1. Connect all harness connectors to components or other harness connectors as necessary.
  1. Secure ground eyelets to body as necessary.
  1. Connect battery ground cable . Check all applicable circuits for proper operation.
  1. Install any trim removed during harness removal. Refer to Section 01-05.


Instrument Panel and Audio Wiring





Item Part Number Description
1 14401 Main Wiring
2 19B113 Radio Amplifier Wiring


Main Wiring





Item Part Number Description
1 — To Instrument Cluster (10849)
2 — To Turn Signal and Windshield Wiper Switch (13K359)
3 18C641 Heated Back Window Control Relay
4 04320 Instrument Panel
5 — To Heated Back Window Switch and Light (18C621)
6 14401 Main Wiring
7 10D840 Safety Belt Warning Chime
8 14A068 Fuse Junction Panel
9 — To Speed Control Amplifier (9D843)
10 — To Speed Control Amplifier (9D843)
11 — To Steering Column Tube (3C529)
12 — Diagnostic Link Connector
13 — To Air Bag Diagnostic Monitor
14 — To A/C Heater Blower Motor Switch Resistor (18591)
15 — To Engine Control Sensor Wiring (12A581)
16 — To Body Main Wiring (14A005)
17 — To Heater Blower Motor (18527)
18 — To Transmission Control Module (12B565)
19 — To Luggage Compartment Door Release Switch
20 — To Air Conditioner Control (19980)


LH Cowl Side Wiring





Item Part Number Description
1 14A005 Main Wiring
2 19B113 Radio Amplifier Wiring
3 14536 Wiring Bracket
4 14401 Main Wiring
5 14631/19A041 Front Window Regulator Wiring/ Radio Speaker Wiring


RH Cowl Side Wiring





Item Part Number Description
1 13A709 Courtesy Or Interior Lamp Switch Wiring
2 14630/19A041 Front Window Regulator Wiring
3 14A005 Body Main Wiring
4 12A581 Engine Control Sensor Wiring
5 12A650 Powertrain Control Module


Front Floor Pan Wiring





Item Part Number Description
1 14A005 Body Main Wiring
2 — To Seat Regulator Motor (14547)
3 — To Seat Belt (611B08)
4 — To Console Panel (045A36)
5 15A581 Parking Brake Signal Switch and Bracket


Rear Floor Pan and Quarter Panel Wiring





Item Part Number Description
1 19B113 Radio Amplifier Wiring
2 14A005 Body Main Wiring
3 — To RH Rear Brake Anti-Lock Sensor (2C190)
4 46506 Package Tray Panel
5 — To Rear Radio Speaker (18808)
6 — To Back Window Glass (A42006)


Rear Lamp Wiring





Item Part Number Description
1 13410 Lamp Socket and Wiring
2 9341 Inertia Fuel Shutoff Switch
3 14A005 Body Main Wiring
4 N611043-S58 Screw (2 Req'd)
5 14405 Rear Lamp Wiring


Luggage Compartment Wiring





Item Part Number Description
1 — To Luggage Compartment Lamp (13B713)
2 — To Rear License Plate Lamps (13564)
3 19B516 Luggage Compartment Lamp Wiring
4 40110 Luggage Compartment Door
5 13465 Miniature Bulb
6 N801846-S36 Screw
7 — To Rear Hi Mount Lamp (13A613) (Cobra Only)


Battery and Starter, 3.8L Engine





Item Part Number Description
1A N806327-S36MG Screw
2 14301 Battery Ground Cable
3 374043-S100 Felt Washer
4 10653 Battery
5 14290 Headlamp Dash Panel Junction Wire
6 14300 Battery to Starter Relay Cable
7 14516 Power Distribution Box and Harness
8B N805403-S100 Nut
9 6A051 Engine Block Heater
10 9F472 Heated Oxygen Sensor
11C N620482-S36 Nut
12 14A163 Wiring Harness Retainer
13D N605905-S56 Bolt
14 11N807 Starter Terminal Cover
15D 3371-S36 Nut
16E 391480-S36 Stud
17 11002 Starter Motor
18E 382747-S36 Bolt
19F N805403-S100 Nut and Washer
20E N621939-S53 Nut and Washer
21 N808084-S307 Stud
A Tighten to 4-5.6 Nm (35-50 Lb-In)
B Tighten to 10.2-13.8 Nm (91-122 Lb-In)
C Tighten to 25.5-34.5 Nm (19-25 Lb-Ft)
D Tighten to 17-23 Nm (13-17 Lb-Ft)
E Tighten to 21.2-28.8 Nm (16-21 Lb-Ft)
F Tighten to 8.9-12.1 Nm (79-107 Lb-In)


Battery and Starter, 5.0L Engine





Item Part Number Description
1 14300 Battery to Starter Relay Cable
2A 55736-S36 Nut
3B N620482-S36 Nut
4 11002 Starter Motor
5 9F472 Heated Oxygen Sensor
6 6C624 Low Oil Level Sensor
7B 620482-S36 Nut
8 14A163 Wiring Harness Retainer
9 N806468-S36 Stud
10 — Engine Block Heater
A Tighten to 8.9-12.1 Nm (79-107 Lb-In)
B Tighten to 17-23 Nm (13-17 Lb-Ft)


Engine Wiring





Item Part Number Description
1 12A581 Wiring Harness Assy
2A N805320-S36 Nut and Washer Assy
3 14305 Wiring Harness Assy
4 9D930 Fuel Charging Wiring
5 9K499 Exhaust Emission Control Wiring
6 10300 Generator
7 9F472 RH Heated Oxygen Sensor
8 9F472 LH Heated Oxygen Sensor
9 14A206 Heated Oxygen Sensor Bracket
10 — Existing Bolt
11 3A674 Power Steering Pump Actuator
12 19D629 Compressor and Clutch Assy
13 N800458-S36G Screw
14 18801 Capacitor Assy
15 10884 Engine Coolant Temperature Sensor
16 9278 Oil Pressure Engine Unit Gauge
17 6C644 Oil Level and Temperature Sensor


Engine Ground Cable





Item Part Number Description
1 19A095 Radio Frequency Interference Suppression Bond
2 3504 Steering Gear
3 5482 Front Stabilizer Bar
4A N801650-S36 Nut
5B W611101-S36 Screw
A — Tighten to 10.2-13.8 Nm (91-122 Lb-In)
B Tighten to 17-23 Nm (13-17 Lb-Ft)


Engine Compartment Lamp





Item Part Number Description
1 15A702 Engine Compartment Lamp Feed Wiring
2 13465 Miniature Bulb
3 15702 Engine Compartment Lamp
4 14401 Main Wiring


Radio Capacitor and Oil Pressure Sender





Item Part Number Description
1 18801 Radio Ignition Interference Capacitor
2 9278 Oil Pressure Sender
3 12029 Ignition Coil
4 — Sender Fitting
5 9D930 Fuel Charging Wiring
6 N800458-S36G Screw


Radiator Support Wiring





Item Part Number Description
1 10D968 Low Coolant Level Warning Sensor
2 14489 Data Link Connector
3 — To A/C Cyclic Switch (19E561)
4A N806327-S36MG Screw (2 Req'd)
5 — To Headlamp (13008)
6 12A581 Engine Control Sensor Wiring
7 14290 Headlamp Dash Panel Junction Wire
8 — To Anti-Lock Brake Control Module (2B373)
9 12B581 Constant Control Relay Module
10 To Fog Lamps, Park and Turn Signal Lamps
11 14B004 Front Air Bag Sensor and Bracket
A Tighten to 5.9-8.1 Nm (53-72 Lb-In)


RH Fender Apron Wiring





Item Part Number Description
1 12A581 Engine Control Sensor Wiring
2 — To A/C Cyclic Switch (19E561)
3 7D307 Neutral Switch Wiring
4 9D930 Fuel Charging Wiring
5 14A163 Wiring Harness Retainer
6 14290 Headlamp Dash Panel Junction Wire
7 — To Mass Air Flow Sensor (12B579)
8 12K702 Ignition Control Module
9 14489 Data Link Connector
10 14A099 Wiring Shield
11 12A360 Ignition Control Module Bracket
12A N620480-S309B Nut (2 Req'd)
13 N807199-S309B Screw and Retainer (2 Req'd)
14 — To A/C Cyclic Switch (19E561)
15 — To A/C Clutch (2884)
16 98465 Secondary Air Injection Control Solenoid Vacuum Valves (9H465)
17 — To EGR Vacuum Regulator Control
18 — To Front Brake Anti-Lock Sensor (2C204)
A — Tighten to 8-11.5 Nm (71-102 Lb-In)


Windshield Wiper Motor






Transmission Wiring





Item Part Number Description
1 15525 Backup Lamp Switch to Rear Lamp Feed Wire
2 9E731 Vehicle Speed Sensor
3 7D307 Manual Lever Position Sensor Wiring


Console Panel Wiring





Item Part Number Description
1 044C82 Coin Tray
2 15K218 Fog Lamp Switch Assy
3 15691 Convertible Switch Assy
4 045A06 Console Assy Complete


Air Bag Diagnostic Monitor and Bracket





Item Part Number Description
1 14B215 Air Bag Diagnostic Monitor and Bracket
2 11135 Front Floor Pan
3 14K024 Jumper Wire
4 — Part of Instrument Panel (04320)
5 14401 Main Wiring
6 04320 Instrument Panel


Radio Chassis and Compact Disc Player





Item Part Number Description
1 18888 Radio Chassis Support
2 18812 Radio Antenna Lead In Cable
3 04320 Instrument Panel
4 18D806 Digital Audio Compact Disc Player
5 18806 Radio Chassis
6 19B113 Radio Amplifier Wiring
7 14401 Main Wiring


Radio Amplifier






Inside Rear View Mirror






Speed Control Amplifier






Clutch Pedal Position Switch






Front Door





Item Part Number Description
1 — To Outside Rear View Mirror
2 14A005 Body Main Wiring
3 — To Radio Speaker (18088)
4 — To Window Regulator Electric Drive
5 14631 Front Window Regulator Wiring
6 220A40 Door Lock Cylinder Switch
7 218A42 Power Door Lock Actuator
8 — To Window Regulator Control Switch (14529)
9 — To Outside Rear View Mirror Control (17B676)


Door Speakers





Item Part Number Description
1 23942 Front Door Trim Panel
2 19A041 Radio Speaker Wiring
3 18808 Radio Speaker
4 18B947 Radio Speaker Mounting Spacer
5 18808 Radio Speaker
6 20124 Front Door


Convertible Top





Item Part Number Description
1 14A005 Body Main Wiring
2 19B113 Radio Amplifier Wiring
3 — To Radio Speaker (18088) (Super Sound)
4 — To Radio Speaker (18088) (Base or Premium)
5 — To Window Regulator Electric Drive
6 — To Folding Top Hydraulic Lift Motor and Plate (533A00)
7 533A00 Folding Top Hydraulic Lift Motor and Plate Kit
8 14N089 Relay


Radio Amplifier






Rear Speakers





Item Part Number Description
1 18808 Radio Speaker
2 14A005 Body Main Wiring
3 18963 Radio Speaker Mounting Plate
4 27840 Quarter Panel
5 19A067 Subwoofer Enclosure
6 19B113 Radio Amplifier Wiring


Package Tray Speakers










Fuel Tank





Item Part Number Description
1 9002 Fuel Tank
2 — To Fuel Tank Sending Unit (9275)
3 9A340 Fuel Pump Feed Jumper Wiring
4 14401 Main Wiring
5 14A163 Wiring Harness Retainer
6 — To Fuel Pump (9350)


Fuel Tank Sending Unit and Pump





Item Part Number Description
1 9A340 Fuel Pump Feed Jumper Wiring
2 9A307 Fuel Tank Sending Unit Locking Retainer Ring
3 9275 Fuel Tank Sending Unit
4 9276 Fuel Tank Sending Unit Gasket
5 9002 Fuel Tank
6 9350 Fuel Pump