What it means
The control module detects a circuit-high condition in the Bank 2 exhaust valve control solenoid circuit.
At a glance
- Usually lights the check-engine light
- Affects emissions; the car can fail an emissions test
How it works
The bank 2 exhaust valve control solenoid is an electrical actuator used to control exhaust-valve operation. The control module sets this code when voltage in its circuit rises above the expected range, which can result from a short to battery power or an open in the circuit.
Common causes
Most likely first.
- Wiring shorted to battery
- Connector pins corroded - high contact resistance
- Supply wire pinched against B+ source
Symptoms
- Check engine light on
- Rough running or reduced engine performance
- Poor fuel economy
How to diagnose it
- Record freeze-frame data and scan for related exhaust-valve control codes to identify when the bank 2 circuit fault occurred.
- Inspect the bank 2 exhaust solenoid connector and harness for corrosion, loose pins, damaged insulation, or a wire pinched against a power source.
- Use the manufacturer's wiring information to check the bank 2 control circuit for a short to power or an open.
- Test the solenoid coil and circuit continuity against the manufacturer's specification.
- If the circuit and solenoid pass, check the control-module output using the manufacturer's diagnostic procedure.
Common fixes
- Repair bank 2 solenoid wiring shorted to power or damaged by pinching.
- Clean or repair corroded or loose terminals at the bank 2 exhaust solenoid connector.
- Repair an open in the bank 2 solenoid circuit.
- Replace the bank 2 exhaust valve control solenoid if it fails electrical testing.
- Repair a confirmed control-module fault after the solenoid and wiring pass checks.
Can I keep driving?
Gentle driving may be possible if the engine runs smoothly, but avoid heavy loads if performance is reduced. Stop if rough running or power loss becomes severe, since exhaust-valve control may be unreliable.
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.