What it means
The clutch pedal position sensor A reports a circuit range/performance fault. Pedal position cannot be measured reliably.
At a glance
- Usually lights the check-engine light
How it works
Clutch pedal position sensor A measures pedal travel and provides that information to the vehicle’s control module. This code sets when sensor A’s output is outside the expected operating range or does not change as expected with pedal movement, even if the circuit is not fully open.
Common causes
Most likely first.
- Position sensor failed
- Wiring fault
- Sensor element aged beyond calibration window
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
How to diagnose it
- Record freeze-frame data and watch live sensor A position while slowly pressing and releasing the clutch pedal to identify readings that are out of range or fail to follow pedal movement.
- Inspect sensor A’s mounting, connector, and wiring for looseness, damage, corrosion, or anything preventing the sensor from tracking pedal travel.
- Check sensor A’s supply, ground, and signal wiring for opens, shorts, or poor connections using the vehicle wiring diagram.
- Measure sensor A output at several pedal positions and compare its response with the manufacturer’s specification.
- If wiring and output are sound, check whether the sensor requires adjustment or calibration according to the vehicle service information.
Common fixes
- Secure the sensor A connector or repair damaged wiring and terminals.
- Correct a loose sensor mounting or misalignment that prevents proper pedal tracking.
- Replace sensor A if its output remains outside the manufacturer’s specification.
- Carry out the specified calibration or learn procedure and confirm smooth readings through pedal travel.
Can I keep driving?
Drive only if clutch operation and gear selection remain predictable; avoid situations requiring frequent shifts if the signal is erratic. Stop if gears become difficult to select or the clutch does not behave normally, since continued operation can cause drivability problems.
A code shows where the control module detected a fault, not always which part failed. Check the causes in order and confirm with a test before replacing parts. Have several codes? Check them together
This is a generic code: it means the same on every make. The car’s maker may add more detail in its own service information.