B Rocker Arm Actuator Control Circuit High Bank 2
The P2664 code indicates that the powertrain control module (PCM) has detected a high voltage condition in the rocker arm actuator control circuit for Bank 2. This actuator controls the variable valve timing or cylinder deactivation system. A high voltage reading suggests a short to power, faulty actuator, or wiring issue, which can affect engine performance and fuel economy.
01. Most Common Causes
- Short to power in the rocker arm actuator control circuit
- Faulty rocker arm actuator solenoid
- Damaged wiring or connector
- Failed PCM
02. Symptoms You Will Notice
- Check Engine Light on
- Rough idle or misfire
- Reduced fuel economy
- Engine performance issues
03. Step-by-Step Diagnosis
Step 1: Scan for codes and record freeze frame data.
Step 2: Visually inspect wiring and connectors for damage or corrosion.
Step 3: Test the rocker arm actuator solenoid resistance and compare to specs.
Step 4: Check for shorts to power or ground in the circuit using a multimeter.
Step 5: If all else is fine, test the PCM output or replace the PCM.
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 damage and poor performance.
How much does it cost to fix?▼
Repair costs typically range from $150 to $400, depending on the cause and labor rates.