Error code

OBD2 P0751

OBD2P0751
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.

What it means

Shift Solenoid 'A' Performance or Stuck Off.

Severity

moderateCan drive but may experience shifting issues. It's recommended to address this issue soon.

Summary

P0751 indicates that shift solenoid 'A' in your transmission is not functioning properly or is stuck off. This affects gear shifting and can cause drivability issues.

Symptoms

  • Stored trouble code and an illuminated warning light
  • Varying degrees of transmission slippage
  • Transmission may be stuck in a particular gear
  • Transmission may not engage the affected gear
  • Increased fuel consumption
  • Transmission overheating
  • Transmission entering fail-safe or limp mode

Common Causes

  • Low transmission fluid level
  • Dirty, contaminated, or degraded transmission fluid
  • Use of unsuitable or incompatible transmission fluid
  • Clogged hydraulic passages in the transmission or valve body
  • Defective shift solenoid
  • Mechanical failure of the transmission
  • Damaged, burnt, shorted, disconnected, or corroded wiring and/or connectors

Diagnosis

  1. Check transmission fluid level and condition
  2. Inspect transmission wiring harness for damage or corrosion
  3. Perform resistance and continuity checks on shift solenoid 'A' wires

Fixes

  • Replace defective shift solenoid if identified as the cause

FAQ

What should I do if my transmission fluid is dirty?

Change the transmission fluid and filter to restore proper operation.

Can I drive with P0751 code?

You can drive but may experience shifting issues. It's recommended to address this issue soon.

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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