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2013 RAM 2500
6.7L I6 Cummins Diesel•4WD•AUTOMATIC•diesel•turbo
16 active safety recalls on this vehicle — view recalls
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Repairs0Labor519Torque3583Fluid10DTC1035Battery1Maintenance0Recalls16
P1765high severityPowertrain

Trans 12 Volt Supply Relay Control Circuit

on 2013 Ram 2500 6.7L I6 Cummins Diesel · 4WD

What this code means

The transmission 12-volt supply relay control circuit has a fault. This can interrupt power to transmission solenoids.

Symptoms

  • No shifting or limp mode
  • Transmission codes
  • Loss of solenoid power

Common causes

  • Faulty transmission relay
  • Wiring or connector fault
  • Blown fuse
  • Failed PCM driver

Diagnostic steps

  1. Scan for transmission codes
  2. Check relay and fuse
  3. Test relay control circuit
  4. Inspect wiring to PCM
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🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Mechanic · 20+ years. Spot an error? Use the Help link above — a human reads every report.
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