Turn signal relay

[johnnytequila]

Happy New Year everybody. I am trying to figure out which relay controls the turn signals? I can’t find it in the manual or online. I ordered a new one but that won’t help if I don’t know where it goes lol.
Anyone that can point me in the right direction would greatly be appreciated.

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[spedy7]

With everything being mostly LED now, there are no relays for the turn signals on the Mustangs. Everything is controlled by FETs within the BCM and BCM-B and unfortunately not serviceable separate from the module.

 

[Meggsie]

Happy New Year everybody. I am trying to figure out which relay controls the turn signals? I can’t find it in the manual or online. I ordered a new one but that won’t help if I don’t know where it goes lol.
Anyone that can point me in the right direction would greatly be appreciated.

As you have the 5.2 litre version you still have bulbs (not LEDs) for indicators, nevertheless these are controlled by the BCM module which drives them using FETs (Field Effect Transistors) which are very robust. So no relays involved and power comes from "always hot" bussed power. A mega fuse is used here that can't be pulled.

Rear indicators use the BCM-B which is similar in the way they are driven.

 

[johnnytequila]

Thank you for that information. I really appreciate it. My left turn signal will flash fast on the dash but the left front turn signal would not be out but not flash. So I found this error using my blue driver:
Hi John,

Reached out to the automotive engineers on my team, the reported back with this report on the code:

B123A-11 Left Front Turn Indicator - Circuit Short To Ground
B123A-15 Left Front Turn Indicator- Circuit Short To Battery Or Open

Fixes:
Bulb (if applicable)
Front Park lamp/Turn Lamp Assembly
Rear Lamp Assembly
Exterior Mirror Lamp Turn Signal Assembly
Driver Door Module
Passenger Door Module
Body Control Module
Wiring Harness/Connector

 

[johnnytequila]

 

[johnnytequila]

Now it did it on the right front just like the left did before

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