Clutch B Actuator Control Circuit High
The clutch B actuator control circuit reports a control circuit high condition. Clutch B engagement cannot be commanded reliably.
Affected components
- Clutch b actuator
- Wiring harness
- Tcm
Common causes
- High likelihood: Control wire shorted to B+
- Medium likelihood: Open actuator coil
- Low likelihood: Connector pins corroded - high contact resistance
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
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.