P2648

A Rocker Arm Actuator Control Circuit Low Bank 1

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–89 (est.)

Symptoms

Reduced engine power
Increased fuel consumption
Rough idle
Check Engine light comes on
Jerking during acceleration

Causes

Open or short circuit in control circuit
VVT solenoid valve malfunction
Poor contact in connectors
Engine control unit malfunction
Mechanical problems in the VVT system

How to Fix

Check the integrity of wiring and connectors
Check VVT solenoid valve resistance
Check voltage on control circuit
Check the operation of the VVT system
If necessary, replace faulty components

Related codes

P2649 P2650 P2651