PCS 4LHD User Manual

Page 13
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10511 Old Ridge Rd. Ashland, VA 23005
4LHD/4LHDX Application Manual
Powertrain Control Solutions
REV 1.1
1.5 Electrical Specications
1.5.1 Solenoids
Range Gear
Shift
Solenoid
Abuse
Solenoid
2-4
Band
Reverse
Input
Clutch
Overrun
Clutch
Forward
Clutch
Forward
Sprag CL.
Assembly
3-4
Clutch
LO/
Roller
Clutch
LO/REV
Clutch
1-2 2-3 FWD REV
Park
ON
1
ON
1
OFF OFF Applied
Reverse
ON
1
ON
1
ON ON
3
Applied Applied
Neutral
ON
1
ON
1
ON ON
OD
1st ON ON ON
3
OFF Applied Holding Holding
2nd OFF ON ON
3
OFF Applied Applied Holding
3rd OFF OFF ON
3
OFF Applied Holding Applied
4th ON OFF ON
3
OFF Applied Applied Applied
D
1st ON ON ON
3
OFF Applied Holding Holding
2nd OFF ON ON
3
OFF Applied Applied Holding
3rd OFF OFF ON
3
OFF Applied Applied Holding Applied
2
1st
2
ON ON ON
3
OFF Applied Applied Holding Holding
2nd OFF ON ON
3
OFF Applied Applied Applied Holding
1
1st ON ON ON
3
OFF Applied Applied Holding Holding Applied
2nd OFF ON ON
3
OFF Applied Applied Applied Holding
1. Shift solenoid state is a function of vehicle speed and may change if vehicle speed increases.
2. Manual Second - First gear is electronically prevented under normal operating conditions.
3. Solenoid state will be opposite shown during abuse protection
Shift Solenoids
The two identical shift solenoids are two port, on/off solenoids (normally on) that are used to control the shift
change events.
• The shift solenoid coil resistance should be 20-40 ohms at 20.0 +/- 5.0°C.
• The shift solenoid current ow should not exceed 0.75 Amps.
• The shift solenoid energizes at 7.5 volts or more.
• The shift solenoid de-energizes at 1.0 volts or less.
TCC Enable Solenoid
The TCC Enable Solenoid is a two port, on/off solenoid (normally on) that is used to apply and release pressure
to the Torque Converter Clutch.
• The TCC Enable Solenoid coil resistance should be 20-40 ohms at 20.0 +/- 5.0°C.
• The TCC Enable Solenoid current should not exceed 1.5 Amps.
TCC Control Solenoid
The TCC Control Solenoid is a three port (normally closed) device used to control the apply and release pressure
of the Torque Converter Clutch. Adujsting this in the TCU Calibration changes the shift rmness of the Torque
Converter Clutch.
• The TCC Control Solenoid operates at a xed frequency (negative duty cycle) of 32 Hz.
• The TCC Control Solenoid coil resistance should be 10.0 - 11.5 Ohms when measured at 20.0 +/- 5.0°C.

PCS 4LHD Specifications

General

Brand	PCS
Model	4LHD
Category	Microphone system
Language	English