P2093: A Camshaft Position Actuator Control Circuit High (Bank 2)

What it means

The intake (A) camshaft phaser solenoid drive line on bank 2 is stuck high — short to B+ or open ground.

At a glance

• Usually lights the check-engine light
• Affects emissions; the car can fail an emissions test

How it works

The bank 2 intake camshaft actuator uses an oil control valve to route oil to the intake cam phaser and adjust valve timing. P2093 is set when the control module detects an actuator drive-circuit voltage above its expected limit, which can prevent normal intake timing control on bank 2.

Common causes

Most likely first.

1. Short to B+
2. Open ground return
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. Save freeze-frame data and review commanded and actual bank 2 intake cam timing to identify when the circuit fault occurs.
2. Inspect the bank 2 intake oil control valve wiring for pinching or damage where it could contact battery voltage or another powered wire.
3. Check the connector for corrosion, loose terminals, or a damaged ground return.
4. Test the drive wire for a short to B+ and the ground path for an open, following the manufacturer's circuit procedure.
5. If the harness and valve pass, test the control module's bank 2 intake actuator driver against the manufacturer's specification.

Common fixes

• Clean or repair corroded or loose bank 2 intake actuator connector terminals.
• Repair a drive wire shorted to B+ or an open ground return.
• Replace the bank 2 intake oil control valve if it fails its electrical tests.
• Repair or replace the control module only if its driver is confirmed faulty.

Can I keep driving?

If the engine remains smooth, limit driving to a short, gentle trip and avoid hard acceleration because bank 2 intake timing may not follow commands. Stop if it stalls, runs roughly, or loses substantial power.