B1352.mp4

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

: The internal tab or plunger that grounds the circuit when a key is inserted can wear down or break. b1352.mp4

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

At its core, B1352 means your vehicle's computer can't tell if the key is actually in the ignition. This circuit is primarily responsible for the "key-in-ignition" reminder chime that sounds when your door is open. Why Does It Happen? Common Fixes : Inspecting the wires behind the

: 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

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

: Moisture or age can cause the electrical contacts inside the ignition barrel to fail. Does It Prevent Your Car From Starting? There is a common debate among DIY mechanics on this topic: