P1846: Transmission Transfer Case Contact Plate 'A' Circuit Failure

MediumPowertrainTransmission

What does P1846 mean?

P1846 is a diagnostic trouble code indicating "Transmission Transfer Case Contact Plate 'A' Circuit Failure". This code relates to your vehicle's transmission and should be diagnosed to determine the root cause. The severity level helps indicate how urgently this should be addressed.

Common causes

  • Low or degraded transmission fluid
  • Worn clutch packs or bands
  • Faulty shift solenoid
  • Wiring issue to the transmission control module
  • Failing torque converter

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 P1846 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

P1845Transmission Transfer Case Differential Lock-Up Feedback Switch Short Circuit To Ground
P1847Transmission Transfer Case Contact Plate 'A' Open Circuit
P1844Transmission Transfer Case Differential Lock-Up Feedback Switch Short Circuit To Battery
P1848Transmission Transfer Case Contact Plate 'A' Short Circuit To Battery