P1860 – Chevrolet Corvette C5 DTC

Chevrolet Corvette C5 DTC P1860 – TCC PWM Solenoid Circuit Electrical

DTC P1860 meaning on Chevrolet Corvette C5

DTC P1860 on a Chevrolet Corvette C5 refers to the Transmission Control Module (TCM) detecting an issue with the Torque Converter Clutch (TCC) Pulse Width Modulation (PWM) solenoid circuit. This code indicates an electrical fault in the TCC solenoid circuit.

Chevrolet Corvette C5 DTC P1860 symptoms

  • Check Engine Light (CEL) illuminated on the dashboard
  • Transmission may not shift properly
  • Decreased fuel efficiency
  • Vehicle may stall when coming to a stop

Chevrolet Corvette C5 DTC P1860 causes

  • Faulty TCC PWM solenoid
  • Corroded or damaged wiring in the TCC solenoid circuit
  • Issues with the TCM

Chevrolet Corvette C5 DTC P1860 seriousness

The DTC P1860 code on a Chevrolet Corvette C5 should be addressed promptly as it can lead to drivability issues and potential damage to the transmission if left unresolved. Ignoring this code may result in further transmission problems and decreased vehicle performance.

How to diagnose DTC P1860 on Chevrolet Corvette C5

  1. Use a scan tool to retrieve the DTC codes from the TCM
  2. Inspect the TCC PWM solenoid and its wiring for any visible damage or corrosion
  3. Check the TCM for any signs of malfunction

How to fix DTC P1860 on Chevrolet Corvette C5

  1. Replace the faulty TCC PWM solenoid
  2. Repair or replace any damaged wiring in the TCC solenoid circuit
  3. If the TCM is faulty, it may need to be replaced or reprogrammed

How to erase DTC P1860 on Chevrolet Corvette C5

  1. After fixing the underlying issue causing the DTC P1860, use a scan tool to clear the code from the TCM memory
  2. Ensure that the repair has been successful by driving the vehicle and checking for any recurrence of the code

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