July 16, 2013 13-021 Applies To: See VEHICLES AFFECTED MIL Comes On With DTCs P2646/P2651 or P2647/P2652 (Supersedes 13-021, dated February 28, 2013, to revise the information marked by the black bars) REVISION SUMMARY • Under VEHICLES AFFECTED, 2012–13 Civic models (except Si and Hybrid) were added. This allows the Variable Timing System to … TITLE: Replace VTEC Oil Pressure Switch for DTC P2646, P2647. P2646 is an OBD-II generic code for the engine control module (ECM) detecting the 'A' rocker arm actuator control circuit for bank 1 has a performance problem or is stuck in the off position. APPLIES TO: 03-05 Accord 4-cylinder03-05 Element 02-05 CR-V. SERVICE TIP: Got a vehicle in your shop with either of these DTCs?- Honda has issued a service bulletin #13-021 to address the problem on the vehicles listed below. Comprueba que el nivel y la presión de aceite sea el requerido para un buen funcionamiento del Sistema de Distribución Variable.Además, toma en cuenta que la viscosidad del aceite tiene un papel importante en el funcionamiento de este sistema. authorized Honda automobile dealer. Shops are reporting a high incidence of P2646 Honda trouble codes on Honda CR-V, Honda Element and Accord models with the 2.4L engine. the check engine light is on, code is P2646, which indicates a vtec malfunction. What the P2646 code means. The Rocker Arm Control Solenoid supplies hydraulic pressure to the Variable Timing mechanism. The engine would not rev over 2500 RPM. Code P2646 This code is showing up P2646 Rocker Arm Actuator Prf or Stuck Off. Successful Repair for DTC P2646 On Christmas day my son was driving his 2005 Honda Element up a mountain road when the MIL came on. This is from a Honda service tip dated 03/01/2005: DTC P2647: VTEC Oil Pressure Switch Circuit High Voltage. P2646 Honda Fix P2646 Honda. I scanned for codes and it came up P2646. 2004 honda civic: out vtec assy due to p2646 dtc..scanner..light comes. I have a 2004 Honda Civic EX, 1.7 l engine, 110k miles. In other words, all newer makes and models (1996 and newer). Meaning and Cause of the P2646 Code. P2646 code definition 'A' Rocker Arm Actuator System Performance or Stuck Off Bank 1. At first I thought he might have a transmission problem but after checking everything seemed fine. Here are some of the most common. What Does P2646 Code Mean? Hello all and thank you in advance for your help. What are the common causes of code P2646? Can you tell me what thhis is. Because it starts with the P2xxx, the P2646 is a powertrain generic, or government-required code that applies to all vehicles with the OBD-II system. SOURCE: Honda Service News. OBD-II Code P2646 is defined as a "A" Rocker Arm Actuator System Performance/Stuck Off. Depending on year, make, and model, DTC P2646 may have number of causes. - Honda 2004 Civic question Los pasos para darle la respectiva solución a los problemas asociados al código de diagnóstico P2646 OBDII son los siguientes:. DTC P2646 is defined as “Rocker Arm Actuator A, Bank 1, Performance or Stuck Off.” Honda, Acura, and a couple other automakers use this definition. The P2546 Honda code definition is: P2646: VTEC Oil Pressure Switch Circuit Low Voltage. P2646 Honda Description The VTEC system activates the rocker arm oil control solenoid (VTEC solenoid valve) by command from the engine control module (ECM)/powertrain control module (PCM), and it charges/discharges the hydraulic circuit of the VTEC mechanism that …