OBD-II reference

All 9.533 generic OBD-II codes, explained in detail.

Causes, inspection steps and sources — a comprehensive DIY archive. Created and maintained with love for the detail. Good luck and have fun!

Powertrain generic / SAE

P2783

Torque Converter Temperature Too High

The TCM detects that torque converter temperature exceeds the calibrated upper limit. Continuous slipping or insufficient cooling causes overheating and risks transmission damage.

SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number7 / 83

Possible causes

  • Low transmission fluid level high
  • Blocked transmission cooler medium
  • Excessive TCC slip medium

Inspection / repair

  • Difficulty: hard
  • DIY: shop recommended
  • Estimated cost: 300–2500 €
  • Estimated time: 1–6 h
  • Component: torque converter
  • Component: transmission cooler
  • Component: transmission fluid
  • MIL / check engine light
  • limp mode possible

Sources

References

How to read OBD-II codes

The first letter names the vehicle system, the second digit distinguishes generic from manufacturer-specific, the remaining digits group fault area and number.

PPowertrain: engine, transmission, emissions
BBody: chassis trim, comfort, interior
CChassis: suspension, brakes, steering
UNetwork: CAN, control modules, communication