P2C07: A Camshaft Profile Actuator Position Sensor A Circuit Low Bank 1

What it means

Position sensor A for camshaft profile actuator A on bank 1 has a circuit-low fault. Cam profile selection feedback may be unreliable.

At a glance

• Usually lights the check-engine light
• Affects emissions; the car can fail an emissions test
• The engine or gearbox may go into limp mode

How it works

Camshaft profile actuator A on bank 1 selects a cam profile, and position sensor A reports the actuator’s position to the control module. P2C07 sets when that sensor’s signal voltage is below its expected range, indicating a low circuit reading rather than simply an inaccurate position.

Common causes

Most likely first.

1. Signal wire shorted to ground
2. Internal sensor short
3. Connector pins corroded - high contact resistance

Symptoms

• Check engine light on
• Power loss especially in mid-rpm range
• Possible rough idle or stalling
• Increased fuel consumption

How to diagnose it

1. Check freeze-frame and live data for bank 1 sensor A’s position signal to confirm when the low reading occurs.
2. Inspect the sensor A connector and harness at camshaft profile actuator A on bank 1 for a signal wire rubbed through to ground or damaged by heat or oil.
3. Check connector pins for corrosion, poor contact, or loose fit that could pull down the signal.
4. With the circuit powered down as specified by the manufacturer, test sensor A’s signal wire for a short to ground and verify continuity.
5. If the wiring and connector pass, test sensor A’s output and compare it with the manufacturer’s specification to identify an internal sensor short.

Common fixes

• Clean or repair corroded or loose connector terminals at bank 1 sensor A.
• Repair the sensor A signal wire shorted to ground.
• Replace position sensor A on bank 1 if its output remains low with sound wiring.
• Repair the affected actuator wiring if heat or oil damage has compromised insulation.

Can I keep driving?

Limit driving and avoid hard acceleration because cam profile control and mid-range power may be affected; stop if the engine stalls or loses substantial power. Continued operation can worsen drivability and fuel consumption.