Shift Solenoid "A" Malfunction
Shift Solenoid "A" Malfunction: the component is malfunctioning. Shift solenoids route transmission hydraulic pressure to engage the gears; faults cause harsh, delayed, or missed shifts.
Affected components
- Shift solenoid
- Transmission valve body
Common causes
- High likelihood: Solenoid stuck (debris, varnish)
- Medium likelihood: Open or shorted winding
Possible symptoms
- Check engine or transmission warning light on
- Harsh, delayed, or missing shifts
- Possible limp mode (locked in one gear)
- Slipping or shuddering during gear changes
Diagnostic notes
- The malfunction indicator lamp may illuminate
- Reduced-power or limp mode may occur
Related codes
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.