If you are dealing with this code, most mechanics on forums like JustAnswer or the Ford F150 Forum suggest:

: Technically, the B1352 circuit is just for the chime and shouldn't stop the engine from cranking.

: Inspecting the wires behind the ignition switch for breaks and soldering them back together.

For more technical walkthroughs, you can find various repair demonstrations on YouTube , where many creators use the "b1352" tag to label their diagnostic footage.

: In some older Ford models, a broken wire in this circuit can interfere with the PATS (Passive Anti-Theft System) or prevent a tuner from entering "programming mode," which can lead to a no-start condition. Common Fixes

: Sometimes simply adjusting the tension on the contacts inside the ignition barrel can clear the code.

: A relatively simple DIY task, though a new one may need re-keying to match your existing door keys.

The failure usually stems from physical wear or electrical breaks in the ignition column: