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P0736high severityPowertrain

Reverse Incorrect Ratio

on 2014-2021 Mazda Mazda6 2.5L I4 · FWD

What this code means

The transmission detected an incorrect gear ratio in reverse. This indicates slippage or a mechanical/hydraulic problem in the reverse circuit.

Symptoms

  • Slipping in reverse
  • Delayed reverse engagement
  • Check engine light on

Common causes

  • Low or degraded transmission fluid
  • Worn reverse clutch or band
  • Faulty shift solenoid
  • Internal transmission damage

Diagnostic steps

  1. Retrieve codes and freeze frame
  2. Check fluid level and quality
  3. Monitor reverse gear ratio data
  4. Perform pressure test or inspect transmission

Other Powertrain codes on this vehicle

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