B1329: Passenger Door Ajar Circuit Short To Battery

MediumBodyDoors & Windows

What does B1329 mean?

B1329 is a diagnostic trouble code indicating "Passenger Door Ajar Circuit Short To Battery". The ECU is detecting a voltage reading that is below the expected range in the doors & windows circuit. This typically points to a wiring short, a faulty sensor, or a grounding issue.

Common causes

  • Damaged or corroded wiring harness
  • Loose or disconnected electrical connector
  • Failed doors & windows sensor or actuator
  • Blown fuse in the related circuit
  • Poor ground connection

What should you do?

Schedule a diagnostic appointment at your earliest convenience. The vehicle is generally safe to drive short distances, but the underlying issue should be addressed to prevent it from worsening.

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Code B1329 can mean different things depending on your vehicle. TorqueBot gives you a diagnosis specific to your make, model, and year.

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Related codes

B1328Passenger Door Ajar Circuit Open
B1330Passenger Door Ajar Circuit Short To Ground
B1327Passenger Door Ajar Circuit Failure
B1331Decklid Ajar Rear Door Circuit Failure