The Automatic Transmission changes the gear position of the transmission by utilizing a combination of Clutches and Brakes, which are controlled by solenoid valves.The New Alpha Automatic Transmission consists of a: LR (Low and Reverse Brake), KD (Kick Down Brake), FC (Front Clutch), RC (Rear Clutch), and EC (End Clutch).The gear position is determined by the combination of 3 kinds of Shift Control Solenoid Valves. ( SCSV A , SCSV B, SCSV C )
The TCM checks the Shift Control Solenoin Valve C 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 SCSV C contorl solenoid circuit is malfunctioning and sets this code.
Item | Detecting Condition & Limp Home | Possible cause |
DTC Strategy | ● Proper functional response and circuit continuity | ● Check line open and short between PCM C33-2 terminal 33 and A/T solenoid C04 terminal 6 ● Check for SCSV-A faulty ● Check PCM faulty |
Enable Conditions | ● None | |
Threshold Value | ● Solenoid is turned on and circuit is short ● Solenoid is turned off and circuit is open | |
Diagnostic Time | ● More than 0.3sec | |
Fail Safe | ● 3rd HOLD in D RANGE, 2nd HOLD in 2,L RANGE |
