Input or Turbine Shaft Speed Sensor A Circuit Intermittent
Input or Turbine Shaft Speed Sensor A Circuit Intermittent: the signal is intermittent or erratic. Often a loose connector or chafed wiring; a wiggle test often locates it.
Affected components
- Input turbine speed sensor a
Common causes
- High likelihood: Intermittent contact at connector
- Low likelihood: Connector with intermittent contact under vibration
- Low likelihood: Harness routed against vibrating component
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
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.