General Information

Component Location





General Description

The Automatic Transmission changes the gear position of the transmission utilizing a combination of Clutches and Brakes, which are controlled by solenoid valves. The HIVEC Automatic Transmission consists of a: LR (Low and Reverse Brake), 2ND (2nd Brake), UD (Under Drive Clutch), OD (Over Drive Clutch), REV (Reverse Clutch), and RED (Reduction Brake, only for 5 speed transmissions). The UD Clutch is engaged in the 1st gear, 2nd gear and 3rd gear positions.

DTC Description

The PCM/TCM checks the Under Drive Clutch Control Signal by monitoring the feedback signal from the solenoid valve drive circuit. If an unexpected signal is monitored (for example, high voltage is detected when low voltage is expected or low voltage is detected when high voltage is expected), the PCM/TCM judges that Under Drive Clutch control solenoid circuit is malfunctioning and sets this code.

DTC Detecting Condition





Specification

Solenoid Valve for Pressure Control
- Sensor type : Normal open 3-way
- Operating temperature : -30 °C ~ 130 °C
- Frequency : PCSV-A, B, C, D : 50 Hz (at the ATF temp. -20 °C above)
VFS : 400-1000
** KM series : 35 Hz
- Internal resistance : 3.5 ±0.2 Ohm (20 °C)
- Surge voltage : 56 V

Schematic Diagram





Signal Waveform