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2001 Ford F-150 Heated Seat Wiring Diagram - Modules, Switches & Fuses
Reference · 1992-1996 BroncoAll 411 wiring diagrams
Factory heated-seat wiring diagram showing driver and passenger heated-seat modules (C318/C328), switches, seat back/cushion heaters and temp sensors; power on fuse 118 (30A) and fuse 23 (15A).
Part of 1992-1996 Ford Bronco Wiring Diagrams
This is a heated seat wiring diagram (diagram number 143401) covering both the driver's and passenger's heated seat circuits. Power comes from two sources: Fuse 118 (30A) in the Battery Junction Box (hot at all times, RED/BLK wire) and Fuse 23 (15A) in the Central Junction Box (hot in run, WHT/LT BLU wire through connector C243 and splice S311). Each side has a heated seat module (driver's connector C318, passenger's connector C328) with 10 pins including BRN/LT BLU, DK GRN/VIO, YEL/LT BLU, RED/BLK, VIO/LT BLU, WHT/LT BLU, BLK/LT BLU, BLK ground, and ORG wires; pin 9 is not used. Each module connects to a heated seat switch (driver's C317, passenger's C327) with illumination, a seat back heater element, and a seat heater & temp sensor unit (pins 1-4 with BLK/LT BLU, BRN/LT BLU, YEL/LT BLU, and GRY/LT BLU wires). Grounds are at G203 via splices S306 and S304 (splice S343 noted for Super Crew). Other splices shown include S300, S310, S311, and S320. A reader can trace complete circuit paths, wire colors, connector pin assignments, and fuse ratings for diagnosing heated seat problems.
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Frequently asked questions
- What fuse powers the heated seats in this diagram?
- Two fuses are shown: Fuse 118 (30A) in the Battery Junction Box, which is hot at all times, and Fuse 23 (15A) in the Central Junction Box, which is hot in run.
- What connectors are used for the heated seat modules and switches?
- The driver's heated seat module uses connector C318 and its switch uses C317. The passenger's heated seat module uses C328 and its switch uses C327. The run-power feed passes through connector C243.
- What wire colors go to the seat heater and temp sensor?
- Both driver's and passenger's seat heater & temp sensors use BLK/LT BLU (pin 2), BRN/LT BLU (pin 3), YEL/LT BLU (pin 1), and GRY/LT BLU (pin 4).
- Where do the heated seat circuits ground?
- Both modules ground at G203 via BLK wires: the driver's module through splice S306, and the passenger's module through splice S304, with splice S343 noted for the Super Crew.
- Which module pin carries battery power?
- Pin 4 of each heated seat module carries the RED/BLK wire from Fuse 118 (30A), joined at splice S320.
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