What is PWM transmission?

Generally, the widely used hydraulic control system in automatic transmissions is pulse width modulation (PWM) type. It consists in a PWM solenoid valve and a reducing type second stage valve, so called pressure control valve (PCV), to amplify pressure or flow rate.

What is TCC duty cycle?

TCC duty is the last step in a pressure knock-down. chain. It delivers a % of the applied PCS (force. motor) line, straight-up (Force motor duty is upside- down, a blowoff type valve, more current = less.

What does PWM solenoid do?

The PWM frequency of a “digital” proportional solenoid valve is typically in the range of 25 to 200 Hz. These lower frequencies allow the solenoid to respond (full stroke) over the duty cycle range of control. With “digital” control the solenoid moves full stroke and is held at this position for a duration of time.

What is a TCC in a car?

Transmission Torque Converter Clutch (TCC) Solenoid: DESCRIPTION. Positioned between the rear of the engine and the front of the transmission is the torque converter. The torque converter is responsible for transmitting the engine’s torque and power to the transmission.

What does p1860 mean on a service engine light?

Engine Light ON (or Service Engine Soon Warning Light) | What is P1860 code meaning? The Torque Converter Clutch Pulse Width Modulation (TCC PWM) solenoid valve controls the fluid acting on the converter clutch valve. The converter clutch valve controls the TCC application and release.

What does the p1860 PWM solenoid do?

P1860 Description. The Torque Converter Clutch Pulse Width Modulation (TCC PWM) solenoid valve controls the fluid acting on the converter clutch valve. The converter clutch valve controls the TCC application and release. The solenoid attaches to the control valve body within the transmission.

When does DTC p1860 set in a PCM?

When the PCM detects a continuous open, short to ground or short to power in the TCC PWM solenoid valve circuit, then DTC P1860 sets. DTC P1860 is a type B DTC. The Torque Converter Clutch Pulse Width Modulation (TCC PWM) solenoid valve controls the fluid acting on the converter clutch valve.

How much does it cost to fix a p1860 code?

Most auto repair shops charge between $75 and $150 per hour. | What are P1860 code possible symptoms? Engine Light ON (or Service Engine Soon Warning Light) | What is P1860 code meaning?