Have No Power Locks Interior Lights Hot Wire Dead?

Stulza7x

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May 13, 2016
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car starts all exterior lights wipers fan Windows work but anything that runs off the hot wire power locks, interior lights and radio do not. Wondering if there is a inline fuse or relay somewhere on the wire from the solenoid. Having problems finding one. Thanks
 
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No everything that runs off the ignition works the only things that aren't working run off a hot wire the power locks interior lights radio. I removed the stock radio and the hot yellow wire coming out of the harness had no voltage
 
The door locks run off a circuit breaker on the starter solenoid.
64326d1287785504-fusible-link-burned-up-need-help-87-93-5.0-mustang-fuse-links.gif


You failed to indicate what year car this is. That makes it difficult to insure that you get the right information the first time. Once you have updated you signature, I will post the correct diagram for your radio power problem.

To update your signature, hover over your user name on the top RH side of the page. An information box will appear below your user name. Click on Signature and then fill in or edit it to include information about your 5.0 Mustang. Things like the model year, body style, modifications to the car go in there along with any suitable comments.
 
The door locks run off a circuit breaker on the starter solenoid.
64326d1287785504-fusible-link-burned-up-need-help-87-93-5.0-mustang-fuse-links.gif


You failed to indicate what year car this is. That makes it difficult to insure that you get the right information the first time. Once you have updated you signature, I will post the correct diagram for your radio power problem.

To update your signature, hover over your user name on the top RH side of the page. An information box will appear below your user name. Click on Signature and then fill in or edit it to include information about your 5.0 Mustang. Things like the model year, body style, modifications to the car go in there along with any suitable comments.

It's a 1993 mustang Gt I checked with a voltage reader at both sides of that breaker and the power appears to travel through there was wondering if there is another fuse or relay from that point until that wire splits off inside the cabin
 
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It's a 1993 mustang Gt I checked with a voltage reader at both sides of that breaker and the power appears to travel through there was wondering if there is another fuse or relay from that point until that wire splits off inside the cabin

There is no fuse, switch or relay between the solenoid mounted circuit breaker and the door lock switches.

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The interior lights have a fuse and can be turned on and off by the dimmer switch.

Diagrams courtesy of Tmoss & Stang&2birds

Fuse box layout
MustangFuseBox.gif


mustangFoxLights-Radio_diag.gif





See the following website for some help from Tmoss (diagram designer) & Stang&2Birds (website host) for help on 88-95 wiring; http://www.veryuseful.com/mustang/tech/engine/ Everyone should bookmark this site.

94-95 Mustang wiring diagrams
http://www.veryuseful.com/mustang/tech/engine/#95-95Diagrams

Complete computer, actuator & sensor wiring diagram for 91-93 Mass Air Mustangs
http://www.veryuseful.com/mustang/tech/engine/images/91-93_5.0_EEC_Wiring_Diagram.gif

Complete computer, actuator & sensor wiring diagram for 88-91 Mass Air Mustangs
http://www.veryuseful.com/mustang/tech/engine/images/88-91_5.0_EEC_Wiring_Diagram.gif

Ignition switch wiring
http://www.veryuseful.com/mustang/tech/engine/images/IgnitionSwitchWiring.gif

Fuel, alternator, A/C and ignition wiring
http://www.veryuseful.com/mustang/tech/engine/images/fuel-alt-links-ign-ac.gif

O2 sensor wiring harness
http://www.veryuseful.com/mustang/tech/engine/images/mustangO2Harness.gif

Vacuum diagram 89-93 Mustangs
http://www.veryuseful.com/mustang/tech/engine/images/mustangFoxFordVacuumDiagram.jpg

HVAC vacuum diagram
http://www.veryuseful.com/mustang/tech/engine/images/Mustang_AC_heat_vacuum_controls.gif

TFI module differences & pin out
http://www.veryuseful.com/mustang/tech/engine/images/TFI_5.0_comparison.gif

Fuse box layout
http://www.veryuseful.com/mustang/tech/engine/images/MustangFuseBox.gif

Mustang 5.0 Lights and Radio schematic, by TMoss:
http://www.veryuseful.com/mustang/tech/engine/images/mustangFoxLights-Radio_diag.gif

87-92 power window wiring
http://www.veryuseful.com/mustang/tech/engine/images/mustang87-92 PowerWindowWiring.gif

93 power window wiring
http://www.veryuseful.com/mustang/tech/engine/images/mustang93PowerWindows.gif

T5 Cutaway showing T5 internal parts
http://www.veryuseful.com/mustang/tech/engine/images/5_Speed_Cutaway_Illustrated.jpg

Visual comparison of the Ford Fuel Injectors, picture by TMoss:
http://www.veryuseful.com/mustang/tech/engine/images/Ford_Injector_Guide.jpg

Convertible top motor wiring http://www.veryuseful.com/mustang/tech/engine/images/mustang88VertTopMotorCkt.gif

Engine mounted fuel injector harness
http://www.veryuseful.com/mustang/tech/engine/images/mustangEngineHarness.gif

Location of the TPS, IAB, and the 10-pin connectors on a 5.0, picture by TMoss:
http://www.veryuseful.com/mustang/tech/engine/images/TPS_IAB_Pic.jpg
 

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