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2021 Ford F-150 Wiring GuidePrinted From: the12volt.comForum Name: Vehicle Wiring Information & File Requests Forum Discription: Request Car Alarm, Car Stereo, Cruise Control, Remote Starter, Navigation, Mobile Video, and Other Vehicle Specific Wiring Info, Manuals, Tech Tips URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=146917 Printed Date: May 11, 2025 at 12:54 PM Topic: 2021 Ford F-150 Wiring Guide Posted By: b4manek Subject: 2021 Ford F-150 Wiring Guide Date Posted: July 02, 2021 at 10:04 AM I'm an emergency vehicle upfit technician and am looking for an overall wiring guide for the 2021 F150s. I've found that some of the wires are the same as the 2015-2020 trucks, but some stuff is completely different. I am having trouble finding the Park signal in particular. Also, is there and ignition signal or start signal at the BCM? The Ignition switch is a PITA to get to in these trucks.
Replies: Posted By: mgoetz74 Date Posted: July 02, 2021 at 12:16 PM this is what I got, hope it helps. To me it looks like the park stuff runs through the hs can wires (data)
12 Volts Red (40A) + BCM in passenger kick, black 22 pin plug (J7-G), pin 22 Second 12 Volts Yellow/Red (60A) + BCM in passenger kick, black 1 pin plug (J8-H), pin 1 Ground (chassis ground) Starter Kill Brown/Green + Next to Underhood Fuse Box, black 20 pin plug (C146), pin 10 Starter Blue/White + Ignition Switch, black 6 pin plug, pin 1 Ignition White/Orange + Ignition Switch, black 6 pin plug, pin 2 Accessory Violet/Green + Ignition Switch, black 6 pin plug, pin 6 Keysense Blue/Gray + Ignition Switch, black 6 pin plug, pin 3 CAN Bus High Blue (HS1 CAN) Data Behind Glove Box, gray 30 pin plug (C210), pin 4 CAN Bus Low White (HS1 CAN) Data Behind Glove Box, gray 30 pin plug (C210), pin 3 CAN Bus High 2 Gray/Orange (MS1 CAN) Data Driver Kick, gray 30 pin plug (C263), pin 1 CAN Bus Low 2 Violet/Orange (MS1 CAN) Data Driver Kick, gray 30 pin plug (C263), pin 2 CAN Bus High 3 Green/Orange (HS2 CAN) Data Driver Kick, gray 30 pin plug (C263), pin 25 CAN Bus Low 3 Gray/Blue (HS2 CAN) Data Driver Kick, gray 30 pin plug (C263), pin 24 CAN Bus High 4 White/Brown (DIAG CAN) Data OBD-Data Link Connector, white 16 pin plug, pin 6 CAN Bus Low 4 Gray/Yellow (DIAG CAN) Data OBD-Data Link Connector, white 16 pin plug, pin 14 OBD 12 Volts Violet/Red (10A) + OBD-Data Link Connector, white 16 pin plug, pin 16 OBD Ground Black/Gray - OBD-Data Link Connector, white 16 pin plug, pin 4 OBD Connector White Under Driver Dash, Below Electric Parking Brake Switch IMMO Data Blue/White (LIN) Data PATS Transceiver on ignition switch, black 4 pin plug, pin 3 Power Lock Gray/Yellow (w/o memory) - Driver Door Lock Switch, black 4 pin plug, pin 4 Power Unlock Violet/Gray (w/o memory) - Driver Door Lock Switch, black 4 pin plug, pin 2 Power Lock2 Gray/Yellow (with memory) - Driver Door Lock Switch, black 8 pin plug, pin 2 Power Unlock2 Violet/Gray (with memory) - Driver Door Lock Switch, black 8 pin plug, pin 1 Lock Motor Gray/Brown Reverse Driver Kick, door harness, black 21 pin plug (C510), pin 16 --or-- BCM in passenger kick, black 36 pin plug (J3-C), pin 35 Driver Unlock Motor Blue/Green Reverse Driver Kick, door harness, gray 18 pin plug (C511), pin 5 --or-- BCM in passenger kick, black 36 pin plug (J3-C), pin 27 Passenger Unlock Motor Brown/Green Reverse BCM in passenger kick, black 36 pin plug (J3-C), pin 32 Factory Alarm Arm (arms on lock) Factory Alarm Disarm (transponder and ignition) Parking Lights Blue/White (LF-RF) + BCM in passenger kick, black 22 pin plug (J7-G), pin 3 Parking Lights 2 Violet/Green (LR); White/Orange (RR) + BCM in passenger kick, blue 52 pin plug (J5-E), pin 25 (LR); pin 51 (RR) Parking Lights - (LIN) Hazards Brown/Yellow - Harness Above Glove Box --or-- Hazard Switch, black 6 pin plug, pin 4 Directwire Hazards 2 Brown/Yellow (alternate location) - BCM in passenger kick, black 52 pin plug (J2-B), pin 19 Turn Signal (Left) Blue/Green (LF); Gray/Orange (LR) + BCM in passenger kick, black 40 pin plug (J6-F), pin 39 (LF); blue 52 pin plug (J5-E), pin 26 (LR) Turn Signal (Right) Yellow/Violet (RF); Green/Orange (RR) + BCM in passenger kick, black 40 pin plug (J6-F), pin 38 (RF); blue 52 pin plug (J5-E), pin 52 (RR) Headlight Brown/Blue (L); Blue/Green (R) + BCM in passenger kick, black 22 pin plug (J7-G), pin 4 (L); pin 2 (R) AutoLights (LIN) Reverse Light Green/Brown + BCM in passenger kick, black 36 pin plug (J3-C), pin 11 Reverse Light 2 Green/Brown (alternate location) + Driver Kick, harness to rear Left Front Door Trigger Green/Violet - Driver Kick, door harness, black 21 pin plug (C510), pin 2 Left Front Door Trigger 2 Green/Violet (alternate location) - BCM in passenger kick, blue 52 pin plug (J5-E), pin 33 Right Front Door Trigger White - BCM in passenger kick, blue 52 pin plug (J5-E), pin 21 Left Rear Door Trigger Green - BCM in passenger kick, blue 52 pin plug (J5-E), pin 46 Right Rear Door Trigger Yellow - BCM in passenger kick, blue 52 pin plug (J5-E), pin 19 Dome Light Gray/Violet + BCM in passenger kick, black 36 pin plug (J3-C), pin 13 Trunk/Hatch Pin Yellow/Blue (power tailgate ajar) - BCM in passenger kick, blue 52 pin plug (J5-E), pin 34 Hood Pin Blue/Orange - BCM in passenger kick, black 40 pin plug (J6-F), pin 14 Power Liftgate Gray/Yellow (power tailgate) - Power Tailgate Switch, black 6 pin plug, pin 2 Power Liftgate 2 Gray/Yellow (alternate location) - Driver Kick, gray 30 pin plug (C263), pin 27 Trunk/Hatch Release Gray/Yellow (tailgate release) - Tailgate Release Switch, black 6 pin plug, pin 2 Trunk-Hatch Release2 Gray/Yellow (alternate location) - BCM in passenger kick, black 52 pin plug (J2-B), pin 1 Directwire Trunk Release Motor Gray/Orange (tailgate release) + Above Passenger Kick, 59 pin plug (C265), pin 24 Fuel Door Release Yellow/Blue (HEV) - Headlight Switch, black 16 pin plug, pin 4 Directwire Tachometer Brown/Blue (2.7L, 3.3L, 3.5L, HEV) AC PCM on passenger firewall, black 126 pin plug, pin 53 Tachometer 2 White/Green (5.0L) AC PCM on passenger firewall, black 126 pin plug, pin 53 Tachometer 3 Brown/Blue (3.0L Diesel) AC PCM on passenger firewall, black 126 pin plug, pin 38 Fuel Pump Blue or Blue/White + Driver Fender, black 68 pin plug (C1591), pin 9 Rear Defroster Yellow/Orange + Latched Above Passenger Kick, 59 pin plug (C265), pin 29 Mirror Defroster (MS1 CAN) Left Front Heated Seat (MS1 CAN) Right Front Heated Seat (MS1 CAN) Speed Sense Brown/Red (2.7L, 3.3L, 3.5L, 5.0L); Brown/Green (HEV) AC PCM on passenger firewall, black 90 pin plug, pin 71 Speed Sense 2 Brown (3.0L Diesel) AC TCM near frame rail below passenger door, black 50 pin plug, pin 42 Brake Wire Gray/Orange + BCM in passenger kick, gray 22 pin plug (J1-A), pin 1 Parking Brake (electric parking brake) Horn Trigger Green/White - BCM in passenger kick, black 52 pin plug (J2-B), pin 18 Horn Trigger 2 Green/White (alternate location) - Horn Switch-Clock Spring, gray 18 pin plug, pin 9 or gray 12 pin plug, pin 5 Wipers (LIN) Left Front Window (Up/Down) Blue - Green A Driver Door Module, black 24 pin plug, pins 14 - 13 Right Front Window (Up/Down) White - Gray/Yellow A Passenger Door Module, black 24 pin plug, pins 14 - 13 Left Rear Window (Up/Down) Green/Violet - Brown A Left Rear Window Switch, green 8 pin plug, pins 6 - 7 Right Rear Window (Up/Down) White/Violet - Gray A Right Rear Window Switch, green 8 pin plug, pins 6 - 7 Rear Sliding Window Open-Close Yellow/Green - Violet/Brown + Above Passenger Kick, 59 pin plug (C265), pins 43 - 45 Sun Roof (Open/Close) Violet/Brown - Yellow/Orange (function with ignition on only) - Overhead Console, black 16 pin plug, pins 5 - 4 Memory Seat 1 Violet/White - Driver Door Lock Switch, black 8 pin plug, pin 5 Memory Seat 2 Yellow - Driver Door Lock Switch, black 8 pin plug, pin 6 Memory Seat 3 Blue/Orange - Driver Door Lock Switch, black 8 pin plug, pin 7 Radio 12V Violet/Red + Radio, black 32 pin plug, pin 1 Radio Ground Black/Gray - Radio, black 32 pin plug, pin 4 Radio Ignition Green (delay accessory) + BCM in passenger kick, black 36 pin plug (J3-C), pin 30 --or-- Driver Kick, door harness, black 21 pin plug (C510), pin 7 Factory Amp Turn-on Yellow/Violet (audio is A2B) + Radio, gray 32 pin plug, pin Left Front Speaker (+/-) White - White/Brown +,- Radio, black 32 pin plug, pins 8 - 7 Right Front Speaker (+/-) White/Violet - White/Orange +,- Radio, black 32 pin plug, pins 3 - 2 Left Rear Speaker (+/-) White/Green - Brown/Yellow +,- Radio, black 32 pin plug, pins 6 - 5 Right Rear Speaker (+/-) Brown/White - Brown/Blue +,- Radio, black 32 pin plug, pins 10 - 9 Center Channel (+/-) Green - Gray/Yellow +,- Radio, black 32 pin plug, pins 13 - 24 Left Front Speaker - With Amp White - White/Brown +,- Amplifier on driver rear cabin wall, black 20 pin plug, pins 17 - 7 (8 speaker); brown 20 pin plug, pins 17 - 7 (18 speaker) Right Front Speaker - With Amp White/Violet - White/Orange +,- Amplifier on driver rear cabin wall, black 20 pin plug, pins 16 - 6 (8 speaker); brown 20 pin plug, pins 14 - 4 (18 speaker) Left Front Tweeter - With Amp White - White/Brown (tweeter); Green/Blue - Gray/Blue (mid, 18 speaker) +,- Radio, black 32 pin plug, pins 6 - 5 (tweeter); Amplifier on driver rear cabin wall, brown 20 pin plug, pins 16 - 6 (mid) Right Front Tweeter - With Amp White/Violet - White/Orange (tweeter); Violet/Gray - Yellow/Gray (mid, 18 speaker) +,- Radio, black 32 pin plug, pins 10 - 9 (tweeter); Amplifier on driver rear cabin wall, brown 20 pin plug, pins 12 - 2 (mid) Left Front Surround - With Amp Yellow/Orange - White/Brown (headliner, 18 speaker) +,- Amplifier on driver rear cabin wall, brown 20 pin plug, pins 20 - 10 Right Front Surround - With Amp Brown/Yellow - Violet/Green (headliner, 18 speaker) +,- Amplifier on driver rear cabin wall, brown 20 pin plug, pins 19 - 9 Left Rear Speaker - With Amp White/Green - Brown/Yellow +,- Amplifier on driver rear cabin wall, black 20 pin plug, pins 20 - 10 (8 speaker); Radio, black 32 pin plug, pins 3 - 2 (18 speaker) Right Rear Speaker - With Amp Brown/White - Brown/Blue +,- Amplifier on driver rear cabin wall, black 20 pin plug, pins 18 - 8 (8 speaker); Radio, black 32 pin plug, pins 8 - 7 (18 speaker) Left Rear Surround - With Amp Violet/Brown - Yellow/Violet (headrest, 18 speaker) (driver and passenger parallel) +,- Amplifier on driver rear cabin wall, brown 20 pin plug, pins 18 - 8 Right Rear Surround - With Amp Green/Blue - Blue/Orange (headrest, 18 speaker) (driver and passenger parallel) +,- Amplifier on driver rear cabin wall, black 8 pin plug, pins 6 - 2 Center Channel - With Amp Green - Gray/Yellow +,- Amplifier on driver rear cabin wall, black 20 pin plug, pins 19 - 9 (8 speaker); brown 20 pin plug, pins 13 - 3 (18 speaker) Subwoofer - With Amp Green/Violet - Gray +,- Amplifier on driver rear cabin wall, black 20 pin plug, pins 15 - 5 (8 speaker); brown 20 pin plug, pins 15 - 5 (18 speaker) Aux. Audio Input Left (+/-) Blue - Gray/Orange (SYNC audio) +,- Radio, gray 32 pin plug, pins 20 - 31 Aux. Audio Input Right (+/-) Violet/Green - Brown/White (SYNC audio) +,- Radio, gray 32 pin plug, pins 21 - 32 Rearview Camera Video White/Green - Blue/Gray (8 inch); (coax cable, 12 inch) +,- SYNC Module behind radio controls, black 54 pin plug, pins 14 - 15 --or-- Driver Kick, gray 30 pin plug (C263), pins 13 - 12 ------------- 33 years as a installer now just a retired old guy. Favorite thing to install/topic are remote starts/car alarms. Stop using test lights!!! Posted By: audiokid1 Date Posted: July 14, 2021 at 11:31 AM Ignition is located in connector C2280B pin 37 at the BCM in the passenger kick
![]() Parking Lights at the headlamp switch are LIN Bus, so you'll have to go to the parking light wires at the BCM Front Parking Lights - C2280G pin 3 ![]() Driver Rear Parking Light - C2280E pin 25 ![]() Passenger Rear Parking Light - C2280E pin 51 ![]() ![]() |
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