P1864
Torque Converter Clutch Enable Solenoid Electrical Fault Conditions
P1864 is an OBD-II diagnostic trouble code meaning: Torque Converter Clutch Enable Solenoid Electrical Fault Conditions. Common causes: engine blocking solenoid malfunction, open or short circuit in solenoid circuit. Estimated repair cost: $17–89.
Symptoms
- Increased fuel consumption
- Gear shifting problems
- Check Engine Light Is On
- The car goes into emergency automatic transmission mode
- Vibration when driving at constant speed
Causes
- Engine blocking solenoid malfunction
- Open or short circuit in solenoid circuit
- Poor contact in solenoid connectors
- Transmission control module (TCM) malfunction
- Low or contaminated transmission fluid
How to Fix
- Check the level and condition of the transmission fluid
- Check the integrity of the solenoid wiring and connectors
- Test the resistance of the gas turbine engine blocking solenoid
- If necessary, replace the gas turbine blocking solenoid
- Check and, if necessary, replace the transmission control module
Related codes
Error P1864 by Vehicle Brand
FAQ
What does the P1864 code mean?
P1864 is an OBD-II diagnostic trouble code that indicates: Torque Converter Clutch Enable Solenoid Electrical Fault Conditions
What causes a P1864 error code?
The most common causes of P1864 include: Engine blocking solenoid malfunction; Open or short circuit in solenoid circuit; Poor contact in solenoid connectors; Transmission control module (TCM) malfunction.
How do I fix a P1864 diagnostic trouble code?
To fix P1864: Check the level and condition of the transmission fluid. Check the integrity of the solenoid wiring and connectors. Test the resistance of the gas turbine engine blocking solenoid. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P1864?
Yes, but get it checked soon
How much does it cost to fix P1864?
The estimated repair cost for P1864 is $17–89. Actual cost depends on your vehicle, location, and labor rates.
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