What Does P2654 Mean?
The ECM has detected abnormally high voltage in the 'B' rocker arm actuator control circuit on Bank 1. This typically indicates a short to voltage, open ground circuit, or high resistance in the control circuit preventing proper actuator operation.
Common Causes
35%
Open or high resistance ground circuit for rocker arm actuator
30%
Control circuit wire shorted to battery voltage
20%
Failed rocker arm actuator solenoid with open internal circuit
15%
Corroded or damaged connector causing high resistance
Diagnostic Steps
1
Step 1: Verify ground circuit integrity at actuator connector and engine ground points using multimeter
2
Step 2: Disconnect actuator and check for voltage on control wire; should be 0V with key on until ECM commands activation
3
Step 3: Check for short to voltage by measuring resistance between control wire and battery positive (should be infinite)
4
Step 4: Measure actuator solenoid resistance (typically 6-12 ohms); infinite reading indicates open coil
5
Step 5: Repair ground circuit, replace actuator, or repair wiring based on test results
Estimated Repair Cost
$150 - $650
Parts + labor, varies by vehicle and location
The ECM has detected abnormally high voltage in the 'B' rocker arm actuator control circuit on Bank 1. This typically indicates a short to voltage, open ground circuit, or high resistance in the control circuit preventing proper actuator operation.
The most common cause of P2654 (B Rocker Arm Actuator Control Circuit High Bank 1) is: Open or high resistance ground circuit for rocker arm actuator
Typical repair costs for P2654 range from $150 to $650, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Safe to drive with reduced engine performance and fuel economy. Repair soon to restore proper engine operation and prevent long-term efficiency losses.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P2654 to identify the root cause.
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Quick Info
Category
Powertrain
System
Variable Valve Timing/Lift System
Difficulty
Type
Generic (SAE)
Recommended Tools
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