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2011-2014 Mustangs
2011-2014 Mustang Talk
Left turn signal hyper flashing
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<blockquote data-quote="Vinnie_B" data-source="post: 16776629" data-attributes="member: 201678"><p>This is how your turn signal and hazards system works:</p><p></p><p>The SJB monitors the multifunction switch position by sending multiple voltage signals to the multifunction switch. When the multifunction switch is in the LH or RH TURN positions, or the hazard lamp switch is pressed, that input signal is routed to ground.</p><p></p><p>When the SJB receives a request for a turn signal or hazard lamps, the SJB supplies voltage to the front turn lamps and sends a message to the Body Control Module B (BCM-B) to flash (sequential or non-sequential) the rear lamps.</p><p></p><p>The timed on/off cycle is determined by the SJB and is set to flash approximately 80 times per minute if both the front and rear turn lamps operate correctly. If an individual turn signal lamp is determined inoperative by the SJB or the BCM-B , the SJB and the BCM-B (non-sequentially) flash the remaining turn lamp(s) approximately 160 times per minute.</p><p></p><p>The timed on/off cycle for the hazard lamps is set to flash approximately 80 times per minute.</p><p></p><p>The rear turn lamps are set to flash sequentially from the inboard lamp to the outboard lamp. The rear lamps do not flash sequentially for the hazard function.</p><p></p><p></p><p>It's possible to be a few different things. Did you check for any DTC Faults? Specifically BCM-B DTC'S (Body Control Module Faults) It will start with a B</p><p></p><p></p><p>Lightning Fast<img class="smilie smilie--emoji" loading="lazy" alt="⚡" title="High voltage :zap:" src="https://cdn.jsdelivr.net/joypixels/assets/6.6/png/unicode/64/26a1.png" data-shortname=":zap:" />Electrical Automotive Repair LLC</p><p>PM Me or <a href="mailto:Lightning_Fast@comcast.net">Lightning_Fast@comcast.net</a></p><p>Remote or Local (On Site) Technical Repair</p></blockquote><p></p>
[QUOTE="Vinnie_B, post: 16776629, member: 201678"] This is how your turn signal and hazards system works: The SJB monitors the multifunction switch position by sending multiple voltage signals to the multifunction switch. When the multifunction switch is in the LH or RH TURN positions, or the hazard lamp switch is pressed, that input signal is routed to ground. When the SJB receives a request for a turn signal or hazard lamps, the SJB supplies voltage to the front turn lamps and sends a message to the Body Control Module B (BCM-B) to flash (sequential or non-sequential) the rear lamps. The timed on/off cycle is determined by the SJB and is set to flash approximately 80 times per minute if both the front and rear turn lamps operate correctly. If an individual turn signal lamp is determined inoperative by the SJB or the BCM-B , the SJB and the BCM-B (non-sequentially) flash the remaining turn lamp(s) approximately 160 times per minute. The timed on/off cycle for the hazard lamps is set to flash approximately 80 times per minute. The rear turn lamps are set to flash sequentially from the inboard lamp to the outboard lamp. The rear lamps do not flash sequentially for the hazard function. It's possible to be a few different things. Did you check for any DTC Faults? Specifically BCM-B DTC'S (Body Control Module Faults) It will start with a B Lightning Fast⚡Electrical Automotive Repair LLC PM Me or [EMAIL]Lightning_Fast@comcast.net[/EMAIL] Remote or Local (On Site) Technical Repair [/QUOTE]
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Left turn signal hyper flashing
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