P1860 Code: Easy Steps to Solve It
The P1860 code is a diagnostic trouble code (DTC) that indicates an issue with the torque converter clutch (TCC) pulse width modulation (PWM) solenoid circuit. This code is commonly found in General Motors vehicles, particularly in models equipped with 4L60E or 4L80E transmissions. When this code appears, it suggests that the vehicle’s powertrain control module (PCM) has detected an electrical problem within the TCC PWM