Cylinder 2 Exhaust Valve Control Circuit Low
Code P3415 indicates that the powertrain control module (PCM) has detected a low voltage condition in the exhaust valve control circuit for cylinder 2. This circuit is part of a variable valve timing or cylinder deactivation system, which uses solenoids or actuators to control exhaust valve operation. A low voltage reading suggests a short to ground, open circuit, or faulty component, potentially affecting engine performance and emissions.
01. Most Common Causes
- Faulty exhaust valve control solenoid/actuator for cylinder 2
- Short to ground or open in the control circuit wiring
- Corroded or damaged connector at the solenoid
- Failed PCM (rare)
02. Symptoms You Will Notice
- Check Engine Light illuminated
- Rough idle or misfire on cylinder 2
- Reduced engine power or fuel economy
- Possible engine stalling
03. Step-by-Step Diagnosis
Step 1: Scan for additional codes and record freeze frame data.
Step 2: Visually inspect the wiring and connector for cylinder 2 exhaust valve control solenoid for damage or corrosion.
Step 3: Using a multimeter, check the control circuit for continuity and shorts to ground or power.
Step 4: Test the solenoid resistance and compare to manufacturer specs; replace if out of range.
Step 5: If wiring and solenoid are good, suspect PCM fault and perform further diagnostics.
04. Commonly Affected Makes
05. Frequently Asked Questions
Is it safe to drive with this code?▼
It is not recommended to drive long distances as it can cause engine misfire, reduced performance, and potential damage to the catalytic converter.
How much does it cost to fix?▼
Repair costs typically range from $150 to $400, including parts and labor, depending on the cause and vehicle make/model.