P1860
TCC PWM Solenoid Circuit Electrical
P1860 is an OBD-II diagnostic trouble code meaning: TCC PWM Solenoid Circuit Electrical. Common causes: open or short circuit in tcc solenoid circuit, torque converter lock-up solenoid malfunction. Estimated repair cost: $17–56.
Symptoms
- Check Engine light comes on
- The car goes into emergency transmission mode
- Deterioration in acceleration dynamics
- Increased fuel consumption
- Unstable operation of the torque converter
Causes
- Open or short circuit in TCC solenoid circuit
- Torque converter lock-up solenoid malfunction
- Problems with wiring harness or contacts
- Transmission control module (TCM) malfunction
- Poor connection or corrosion in connectors
How to Fix
- Diagnose the TCC solenoid circuit using a multimeter
- Check the resistance and performance of the solenoid
- Inspect the wiring harness and connectors for damage.
- Replace TCC solenoid if necessary
- Clear contacts and restore connections
Related codes
Error P1860 by Vehicle Brand
FAQ
What does the P1860 code mean?
P1860 is an OBD-II diagnostic trouble code that indicates: TCC PWM Solenoid Circuit Electrical
What causes a P1860 error code?
The most common causes of P1860 include: Open or short circuit in TCC solenoid circuit; Torque converter lock-up solenoid malfunction; Problems with wiring harness or contacts; Transmission control module (TCM) malfunction.
How do I fix a P1860 diagnostic trouble code?
To fix P1860: Diagnose the TCC solenoid circuit using a multimeter. Check the resistance and performance of the solenoid. Inspect the wiring harness and connectors for damage.. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P1860?
Limited driving only, diagnose soon
How much does it cost to fix P1860?
The estimated repair cost for P1860 is $17–56. Actual cost depends on your vehicle, location, and labor rates.
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