Error code

OBD2 P0736

OBD2P0736
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.

What it means

Reverse Incorrect Ratio.

Severity

severeCan drive but may experience issues with reverse gear engagement.

Summary

P0736 indicates an issue with reverse gear engagement or operation in the transmission. This code is related to problems like incorrect ratio settings or mechanical failures within the transmission.

Symptoms

  • Stored trouble code and illuminated warning light
  • Delayed or non-engagement of reverse gear
  • Transmission slippage

Common Causes

  • Dirty, contaminated, or degraded transmission fluid
  • Low transmission fluid level
  • Mechanical failure of transmission components (e.g., pressure pump)
  • Internal pressure losses
  • Clogged fluid passages

Diagnosis

  1. Record all fault codes and freeze frame data.
  2. Inspect transmission fluid level and condition.
  3. Test hydraulic system pressure at the reverse gear point if possible.
  4. Compare test results to manufacturer specifications.

Fixes

  • Replace contaminated or degraded transmission fluid
  • Repair any leaks and ensure proper fluid level

FAQ

Can I drive with P0736?

Yes, but you may experience issues engaging reverse gear.

What should I do if the code persists after checking fluid levels and pressure?

Refer to a professional mechanic or transmission specialist for further diagnosis and repair.

View source

Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.

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