The Pressure Control Solenoid Valve A ( PCSV A ) converts the electric signals, which are controlled by the TCM, into hyraulic pressure.
The PCSV A controls the hydraulic pressure, which is applied to the Clutches and Brakes, to reduce the shift shock during shifting.
The PCM/TCM checks the Pressure Control Solenoid Valve signals by monitoring the feedback signals 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 PCSV A drive circuit is malfunctioning and sets this code.
Item
Detecting Condition
Possible Cause
DTC Strategy
? Check voltage range
? Open or short in circuit
? Faulty PCSV-A
? Faulty PCM/TCM
Enable Conditions
? 25% < Solenoid duty < 100%
? Timer of PWM monitoring > 0.5sec
? 8V < Voltage of Battery <16V
Threshold Value
Diagnostic Time
? More than 300 ms
Fail Safe
? Locked in 3 rd gear.