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OBD Code P2758

Torque Converter Clutch Pressure Control Solenoid Control Circuit Stuck On

CodeP2758
DescriptionTorque Converter Clutch Pressure Control Solenoid Control Circuit Stuck On
Possible CausesTCC solenoid stuck on|Valve body
SymptomsTCC always locked|Stalls at stops
SystemTransmission

What Does P2758 Mean?

Torque Converter Clutch Pressure Control Solenoid Control Circuit Stuck On. This diagnostic trouble code (DTC) is stored when the vehicle's onboard computer detects an issue with the transmission.

Code Breakdown

P = Powertrain code

2 = Manufacturer-specific

How to Fix P2758

Follow these diagnostic steps to identify and resolve the issue. Always start with the simplest checks before moving to more involved repairs.

  1. Check transmission fluid level and condition.
  2. Monitor torque converter clutch (TCC) engagement with a scan tool — compare RPM drop to spec.
  3. Test the TCC solenoid for proper resistance and operation.
  4. Check for shudder during TCC lockup — contaminated fluid is a common cause (try a fluid flush).
  5. If the torque converter is slipping internally, replacement is required (transmission removal needed).
  6. Clear codes and test drive on the highway to verify TCC operation.

Note: These are general diagnostic guidelines. Some vehicles may have model-specific procedures. Always consult your vehicle's service manual for exact specifications and torque values. If you are not comfortable performing these steps, visit a qualified mechanic.

Frequently Asked Questions

Is P2758 serious?

Yes — P2758 is considered a high-severity code. You should have it diagnosed and repaired as soon as possible. Driving with this code active may cause further damage to your vehicle or pose a safety risk.

Can I clear P2758 myself?

You can clear any OBD-II code with a code scanner or by disconnecting the battery for 15-30 minutes. However, clearing the code without fixing the underlying problem will cause it to return — usually within one or two drive cycles. If the code triggered the check engine light, the light will come back on. Fix the root cause first, then clear the code.

How much does it cost to fix P2758?

Repair costs vary widely depending on the root cause. Some fixes are free (like tightening a gas cap) while others can cost several hundred dollars (like replacing a catalytic converter or oxygen sensor). A proper diagnosis with a professional scan tool — not just reading the code — is the first step to getting an accurate repair estimate. Many auto parts stores offer free code reading, but a thorough diagnosis usually requires a mechanic.

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