What wire color carries the turn signal pulse from the flasher relay to the multi-function switch?

Circuit 44 LB (light blue) carries the 'B' pulse (turn), and circuit 385 W/R (white/red) carries the 'B' pulse (hazard) from the flasher relay block to the turn/hazard switch through connectors C253F/C253M and C258.

What component produces the flashing of the turn signals and hazards?

The flasher relay inside the Blower/Flasher Relay Block provides a pulsating voltage to operate the turn signals or hazard lamps.

Where does the turn/hazard circuit get its power?

From the Junction Box Fuse/Relay Panel: a HOT IN RUN feed (fuse 12, circuit 294 W/BL via C243) and a HOT AT ALL TIMES feed (fuse 27, 15A, circuit 383 R/W via C242).

Where is the circuit grounded?

Ground is at G200 through circuit 57 BK (black) via splice S202, for both the flasher relay block and the instrument cluster (C237 pin 16). See Grounds, page 10-3.

Where can I find testing procedures for the multi-function switch?

The diagram references page 149-4 for multi-function switch testing.

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Ford Turn Signal/Stop/Hazard Lamps Wiring Diagram 090-001 - Flasher Relay Circuit

Turn/stop/hazard lamp wiring diagram with multi-function switch, flasher, and indicators, color-coded

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Wiring diagram for turn, stop, and hazard lamps showing the multi-function switch, flasher relay, indicators, and color-coded circuits.

AI caption April 2009 · Photo 825 of 4867

This document is a Ford factory-style wiring diagram, page 090-001, covering the Turn/Stop/Hazard Lamps circuit. It shows power distribution from the Junction Box Fuse/Relay Panel with two feeds: a HOT IN RUN circuit and a HOT AT ALL TIMES circuit (with a 15A fuse noted at position 27). Power passes through connectors C243 (circuit 294 W/BL, Ignition Run) and C242 (circuit 383 R/W) into the Blower/Flasher Relay Block, which contains the flasher relay that 'provides a pulsating voltage to operate turn signals or hazard lamps.' Output circuits 44 LB (turn pulse) and 385 W/R (hazard pulse) feed the Multi-Function Switch (turn/hazard switch) via connectors C253F/C253M and C258. Switch outputs include 511 LG (brake on/off switch), 2 W/LB and 3 LG/W (left/right turn or hazard pulses), and 9 LG/O and 5 O/LB (rear lamp feeds). The diagram also shows the instrument cluster left and right turn indicators via connector C237, and grounds at G200 through splice S202 (circuit 57 BK). Cross-references point to Power Distribution (page 13-15), Grounds (page 10-3), switch testing (page 149-4), instrument cluster (page 62-6), and continuation pages 90-2 and 90-3.

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Frequently asked questions

What wire color carries the turn signal pulse from the flasher relay to the multi-function switch?: Circuit 44 LB (light blue) carries the 'B' pulse (turn), and circuit 385 W/R (white/red) carries the 'B' pulse (hazard) from the flasher relay block to the turn/hazard switch through connectors C253F/C253M and C258.
What component produces the flashing of the turn signals and hazards?: The flasher relay inside the Blower/Flasher Relay Block provides a pulsating voltage to operate the turn signals or hazard lamps.
Where does the turn/hazard circuit get its power?: From the Junction Box Fuse/Relay Panel: a HOT IN RUN feed (fuse 12, circuit 294 W/BL via C243) and a HOT AT ALL TIMES feed (fuse 27, 15A, circuit 383 R/W via C242).
Where is the circuit grounded?: Ground is at G200 through circuit 57 BK (black) via splice S202, for both the flasher relay block and the instrument cluster (C237 pin 16). See Grounds, page 10-3.
Where can I find testing procedures for the multi-function switch?: The diagram references page 149-4 for multi-function switch testing.