Component Location
General Description

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 )

DTC Description

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.

DTC Detecting Condition

Item

Detecting Condition

Possible Cause

DTC Strategy

● Check voltage range

● Open or short in circuit

● Faulty SCSV-C

● 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.

Schematic Diagram
note
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