Rocker Arm Actuator Control Circuit High Bank 2
The P2659 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 typically points to a short to power, a faulty actuator, or a wiring issue. Bank 2 refers to the side of the engine opposite cylinder #1.
01. Most Common Causes
- Short to power in the actuator control circuit
- Faulty rocker arm actuator solenoid
- Damaged wiring or connector
- Failed PCM (rare)
02. Symptoms You Will Notice
- Check Engine Light on
- Reduced engine performance or power loss
- Rough idle or misfire
- Decreased fuel economy
03. Step-by-Step Diagnosis
Step 1: Scan for codes and record freeze frame data.
Step 2: Visually inspect the actuator wiring and connector for damage or corrosion.
Step 3: Test the actuator solenoid resistance with a multimeter (compare to specs).
Step 4: Check for voltage at the actuator connector with key on (should be 12V or signal).
Step 5: If wiring and actuator are good, test PCM output or replace 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 performance issues and potential damage to the valve train. Have it diagnosed promptly.
How much does it cost to fix?▼
Repair costs typically range from $150 to $400, depending on the cause. Replacing an actuator solenoid is around $100-$200, plus labor. Wiring repairs are less expensive.