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2021 DODGE DURANGO
6.2L V8 Supercharged•4WD•AUTOMATIC•gas•supercharged
8 active safety recalls on this vehicle — view recalls
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Repairs0Labor498Torque2417Fluid10DTC1925Battery1Maintenance0Recalls8
P0882high severityPowertrain

TCM Power Input Signal Low

on 2021 Dodge Durango 6.2L V8 Supercharged · 4WD

What this code means

The TCM is reading a power input voltage that is too low. This often indicates a supply or ground fault to the module.

Symptoms

  • Transmission stuck in a single gear
  • Warning light illuminated
  • No or delayed shifts

Common causes

  • High resistance in power feed wiring
  • Corroded ground or power connector
  • Blown fuse or bad relay
  • Faulty transmission control module

Diagnostic steps

  1. Measure voltage at TCM power input
  2. Check fuses and relays feeding TCM
  3. Inspect grounds and power connectors
  4. Repair wiring showing voltage drop
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