Comprehensive diagnostic guide for OBD-II code P0747 Torque Converter Clutch solenoid circuit issues
Quick Answer
What P0747 Means
Comprehensive for OBD-II code P0747. This affects your vehicle's transmission system.
Most Likely Cause
Multiple possible causes - see diagnostic details below
This system typically requires professional diagnosis and repair.
Generally safe to drive short-term. Have it diagnosed soon.
Safe to Drive (Short-Term)
Generally safe to drive short-term. Have it diagnosed soon.
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Detailed Diagnostic Information
- This guide synthesizes information and general automotive diagnostic knowledge. The primary technical framing for OBD-II trouble codes comes from Wikipedia's OBD-II sections on Diagnostic Trouble Codes and Powertrain Codes (for context on how DTCs are defined, stored, and used in powertrain systems).
- If multiple codes are present, this guide emphasizes using the P0747 code in conjunction with other fault codes and live data to guide diagnosis.
1) Code overview (what P0747 generally implies)
- P0747 is a powertrain/transmission-related code tied to the Torque Converter Clutch (TCC) system. In typical OBD-II nomenclature, codes in the P0747 area relate to the TCC solenoid circuit performance or related electrical/hydraulic behavior.
- The official DTC framework: OBD-II codes are monitored by the vehicle's control modules, and the system stores trouble codes when issues are detected (this is the general mechanism described in the OBD-II sections on Diagnostic Trouble Codes and Powertrain Codes).
This diagnostic guide was generated using verified reference data:
- Wikipedia Technical Articles: OBD-II
- Open-Source OBD2 Data: N/A (MIT)
Content synthesized from these sources to provide accurate, real-world diagnostic guidance.
Consider professional help if:
- You are not comfortable performing the diagnosis yourself
- The issue requires specialized tools or equipment
- Initial repairs did not resolve the code
- Multiple codes are present simultaneously
- The vehicle is still under warranty
Frequently Asked Questions
What does code P0747 mean?
P0747 indicates Comprehensive diagnostic guide for OBD-II code P0747 Torque Converter Clutch solenoid circuit issues. This is a powertrain code related to the transmission system. When your vehicle's computer detects this condition, it stores this code and may illuminate the check engine light.
Can I drive with code P0747?
You may be able to drive short distances with P0747, but it should be addressed soon. Extended driving could lead to additional problems or increased repair costs.
How much does it cost to fix P0747?
Repair costs for P0747 typically range from $100-$800, depending on the root cause and your vehicle. Diagnostic fees are usually $50-$150, and actual repairs vary based on whether parts need replacement. Get multiple quotes for the best price.
What causes code P0747?
Common causes of P0747 include sensor malfunctions, wiring issues, mechanical failures in the transmission system, or related component wear. The specific cause requires proper diagnosis with a scan tool and visual inspection.
Will P0747 clear itself?
P0747 may temporarily clear if the underlying condition improves, but the root cause should still be diagnosed. If the problem persists, the code will return.
Related Diagnostic Codes
Important Disclaimer
This information is for educational purposes only. We are not licensed mechanics. Always consult a certified mechanic for diagnosis and repair. Improper repairs can be dangerous.
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Last updated: 2025-11-26