Component Location
General Description
Pressure Control Solenoid (Linear Solenoid) : With the duty control which uses higher frequency(600Hz), instead of the existing PWM type which adapts low frequency(60Hz) to control,spool valve can be conrolled precisely.
In PWM control,the amount of oil flow is determined by the duration of "ON"signal among continuously repeated ON/OFF signals.
In Pressure Control, the amount is decided by how widely spool valve open the passage of going through.
DTC Description
The TCM checks the Pressure 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 TCM judges that the Pressure control solenoid valve circuit is malfunctioning and sets this code.
DTC Detecting Condition
Item | Detecting Condition | Possible Cause |
DTC Strategy | Check feed back period
| Open or short in circuit
Faulty VF SOLENOID VALVE
Faulty PCM/TCM
|
Enable Conditions | 16V > Actuator(TCU) power supply voltage >10V
|
Threshold Value | Circuit open or short to ground
|
Diagnostic Time | More than 1sec
|
Fail Safe | Locked in 3 rd gear.
|
Specification
Solenoid Valve for Pressure Control
- Sensor type : Normal open 3-way
- Operating temperature : -30°C~130°C
- Frequency :PCSV-A,B,C,D :50Hz (at the ATF temp. -20°C above)
VFS : 400~1000
? KM series : 35Hz
- Internal resistance : 3.5 ± 0.2 ?(20°C)
- Surge voltage : 56 V
Schematic Diagram
Signal Waveform
Fig 1) Waveform from "Pressure Control Solenoid"