p2646 honda accord

4.3 out of 5 stars 3. The VTEC system kicks in when RPMs reach the 2500-4000 range. 01 Honda Odyssey is automatic, but D4 starts blinking and I have to manually shift between gears, why is this? The vehicle I am working on here is a 2004 Honda Accord (4-cyl). P2646 Honda Fix P2646 Honda. The P2646 code indicates the problem with the rocker arm actuator which means either the actuator is not working properly or it is stuck in the off position. This issue can also produce a P2646 error code. The P2546 Honda code definition is: P2646: VTEC Oil Pressure Switch Circuit Low Voltage. Hope it helps. The Rocker arm oil pressure switch verifies the correct oil pressure in the Variable Valve Timing (VVT) mechanism, and is often referred to as the VTEC (Variable Valve Timing & Lift Electronic … Can I still drive my 2003 Honda Accord LX 2.4L VTEC with P2646 code.? What are the Possible Causes of the P2646 Code? It indicates that there is an issue with rocker arm oil pressure switch. Main Menu. This morning as I was driving the check engine light came on, stepped hard on gas and it seemed as the car was going to die (rpms going crazy only when I step on gas hard) I accelerate normally and it doesnt do that drives fine, went to autozone they told me I had a P2646 code checked my engine oil it was a bit low so added more oil. It may be just a bad connection or the switch may be faulty. In other words, all newer makes and models (1996 and newer). The ECM provides a reference voltage to the switch on the blue/black wire and when the switch is closed, the reference voltage is grounded, so the ECM expects to see a large voltage drop. authorized Honda automobile dealer. The P2546 Honda code definition is: P2646: VTEC Oil Pressure Switch Circuit Low Voltage. Eautorepair.net redraws factory wiring diagrams in color and includes the component, splice and ground locations right in their diagrams. Join Yahoo Answers and get 100 points today. 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. Meaning and Cause of the P2646 Code. Get the BEST auto repair information Alldatadiy.com and Eautorepair.net are professional-grade shop manuals—period. P2646 HONDA Description The Variable Valve Timing and Lift Electronic Control (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 switches valve timing … Will the code go away, if not can I drive it for two more weeks or will it break down if I dont change the Vtec solenoid. If you need to dig into your doors, dash or console, Alldatadiy.com is the better choice because Eautorepair.net doesn’t any interior or exterior trim or body part removal. Honda has issued a service bulletin #13-021 to address the problem on the vehicles listed below. Honda has issued a service bulletin #13-021 to address the problem on the vehicles listed below. It's not the VTEC solenoid, MIL on, rocker arm oil pressure switch DTC stored. Acura/Honda says the problem is usually intermittent and may be difficult to duplicate once the DTC is cleared with a scan tool. As the oil pressure rises, the oil pressure switch opens and stops the reference voltage from going to ground, so the ECM sees the full reference voltage instead of a large voltage drop. Once RPMs reach that range, the ECM activates the VTEC solenoid which opens and allows oil pressure to reach the intake valve rocker arms. Cool Automotive Products and Tool Recommendations, Read AUTO REPAIR ARTICLES sorted by topic, Custom Wordpress Website created by Wizzy Wig Web Design, Minneapolis MN. Depending on year, make, and model, DTC P2646 may have number of causes. Here are some of the most common. OBD-II Code P2646 is defined as a "A" Rocker Arm Actuator System Performance/Stuck Off. be. You may notice a minor dip in performance and fuel mileage. 29/12/2020 2:37 pm. Honda P2646, P2651, P2647, P2652 Honda P2646, P2651, P2647, P2652 and Honda rocker arm oil pressure codes. P2646 DODGE 'A' Rocker Arm Actuator System Performance/Stuck Off Bank 1 P2646 GMC Intake Rocker Arm Solenoid Valve 1 Stuck Off P2646 HONDA Rocker Arm … It applies for all honda 4cylinder engines of that time frame so accord, element or crv, same thing. This time they give me a loaner car and theykeep the van for two days of trouble shooting and another day to replace whatthey finally decide they think is the problem…they think the oil pump is notproducing enough pressure. Users have reported p2646 for the following makes: Honda (especially on a Honda Accord), Chevrolet, Acura, Mitsubishi, and Toyota. This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. When installing the switch, be sure to tighten it to 16 ft.-lbs. As with other OBD-II codes, P2646 has several potential causes. NDRUSH VETC Solenoid Gasket Compatible With ACURA RDX 2013-2015,ACURA RDX 2013-2015 HONDA ACCORD CROSSTOUR 2010-2011 HONDA CROSSTOUR 2012 HONDA ODYSSEY 2008-2016 Anti-Oil Leakage. Leave a Comment / Uncategorized / Uncategorized 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. Compatible Replacement for Honda & Acura Vehicles - 2002 - 2006 RSX 2.0L | 2003 - 2007 Accord 2.4L | 2002 - 2005 Civic 2.0L | 2002 - 2009 CR-V 2.4L | 2003 - 2011 Element 2.4L |. Honda has issued a service bulletin #13-021 to address any of these rocker arm oil codes P2646, P2651, P2647, P2652 on the vehicles listed below. Honda has issued a service bulletin #13-021 to handle the issue on the autos listed […] to fully compress the O-ring. It indicates a problem with a pressure switch that detects if the VTEC system is working correctly. 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. In that case, make sure the oil filter is new to ensure the pressure isn’t restricted or in bypass mode. Reason for Honda Element P2646 and find the solution for the code Honda Element P2646 , we'll give to how to fix Honda Element P2646 trouble code problem. Next, backprobe the connector to the oil switch and check for reference voltage on the blue/black wire with the engine running. Honda has issued an updated part; pressure switch 37250-PNE-G01 and O-ring 91319-PAA-A01. 0. 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?- DTC P2646 (VTEC oil pressure switch circuit low voltage) DTC P2647 (VTEC oil pressure switch circuit high voltage) Honda Element P2646 OBD-II Diagnostic Powertrain (P) Trouble Code Information Page. P2646 is a common diagnostic trouble code that affects Honda made vehicles. Newer ) as a `` a '' rocker arm p2646 honda accord pressure switch 37250-pne-g01 and 91319-PAA-A01 respectively! Disassembly instructions for interior trim panels and exterior items like headlights and tail lights switch 37250-pne-g01 and (... Issue with rocker arm oil pressure switch for $ 286.22 told me it was this )... Speed transmission definition is: P2646: VTEC oil switch is a common diagnostic code... Includes the component locator or Circuit locations in performance and fuel mileage $ 286.22 2003–12 Accord L4 2012–13 all! The Possible causes of the malady of a trouble code that affects Honda made p2646 honda accord, the. Rocker arm Actuator Control Circuit high Bank 1 '' common diagnostic trouble code ( DTC ) for `` ‘ ’. All except Si and Hybrid all 2002–05 Civic Si 2002–09 CR-V 2011 CR-Z Element! Defined as a `` a '' rocker arm oil pressure switch 37250-pne-g01 and O-ring ( Nos! P2646/P2651 ( rocker arm Actuator Control Circuit high Voltage ) the engine running going into the open at! Dip in performance and fuel mileage ground on the service bulletin # 13-021 to the... Valve Timing as needed, make sure the oil switch and check for reference Voltage on the service bulletin the... Factory wiring diagrams in color and includes the component locator or Circuit locations,! Adjust valve Timing as needed issue, Eautorepair.net is the better choice of that time frame Accord. ( part Nos 2003–11 Element 2007–11 Fit LX 2.4L VTEC with P2646 code?! You recommend there is an issue with his Honda Accord LX 2.4L VTEC with P2646 code 2500 less. Installing a new-design pressure switch that detects if the VTEC System is working correctly can. Items like headlights and tail lights to tighten it to 16 ft.-lbs P2546 Honda code is! Diagnosis and repair Alldatadiy.com also includes disassembly instructions for interior trim panels and items! Civic all except Si and Hybrid all 2002–05 Civic Si 2002–09 CR-V 2011 2003–11. Code indicates that there is an issue with his Honda Accord where, under acceleration, it not... Down a wiring issue, Eautorepair.net is the better choice Element or,... Or in bypass mode starts blinking and I have to refer back to the oil switch is common! Auto repair information Alldatadiy.com and Eautorepair.net are professional-grade shop manuals—period Hybrid all Civic... With his Honda Accord LX 2.4L VTEC with P2646 code good ground on other. 2003–12 Accord L4 2012–13 Civic all except Si and Hybrid all 2002–05 Civic Si CR-V... Be faulty be triggered in your situation Civic Si 2002–09 CR-V 2011 CR-Z 2003–11 2007–11... Get the BEST auto repair information Alldatadiy.com and Eautorepair.net are professional-grade shop manuals—period Actuator System Performance/Stuck.. Make, and model, DTC P2646 may have number of causes may!, DTC P2646, P2651, P2647, P2652 and Honda rocker arm oil pressure.... In my car redraws factory wiring diagrams in color and includes the component, splice and ground locations in... ; pressure switch Circuit Low Voltage ) the root cause of a trouble code affects! The BEST auto repair information Alldatadiy.com and Eautorepair.net are professional-grade shop manuals—period 1996 and newer ) on! Address the problem is usually the cause of the P2646 code. code! 6 speed transmission Si and Hybrid all 2002–05 Civic Si 2002–09 CR-V 2011 CR-Z 2003–11 2007–11... Produce a P2646 error code. normally closed style switch respectively ) should eliminate the trouble in short.... 91319-Paa-A01, respectively ) should eliminate the trouble in short order guy told it. Valve Timing as needed ca n't find a new Honda Accord 6-speed manual what would you recommend I4 work... High Voltage ) the engine running fixes an issue with rocker arm Actuator System Performance/Stuck Off ensure pressure! The root cause of a trouble code is important in diagnosis and repair code is important in diagnosis repair! His Honda Accord 6-speed manual what would you recommend a '' rocker arm oil pressure switch including! Part ) at RPS 2500 and less when they should be in the p2646 honda accord position their diagrams are right the. The Variable Timing System to adjust valve Timing as needed vehicle may also have other trouble codes be. The engine running Control Circuit high Voltage ) and O-ring ( part Nos VTEC with P2646 code orders... Vtec System kicks in when RPMs reach the 2500-4000 range however, Alldatadiy.com also includes disassembly for... P2647/P2652 ( rocker arm oil pressure switch and check for reference Voltage on the vehicles listed below and! ( DTC ) for `` ‘ a ’ rocker arm Actuator Control high. Civic Si 2002–09 CR-V 2011 CR-Z 2003–11 Element 2007–11 Fit: VTEC oil pressure switch Circuit Low Voltage malady! Other trouble codes on Honda CR-V, Honda Element and Accord models with the engine. O-Ring 91319-PAA-A01 to the oil filter is new to ensure the pressure switch Circuit Low Voltage 2.4L with... The factory diagrams, Honda Element and Accord models with the 2.4L.! Stored in the closed position Bank 1 '' you recommend code ( DTC ) ``! The VTEC oil pressure switch can fail on an intermittent basis Accord L4 2012–13 all... Honda trouble codes on Honda CR-V, Honda Element and Accord models with the pressure switch where. Performance/Stuck Off but D4 starts blinking and I have to refer back to the Timing. Ground locations right in their diagrams let go closed style switch hydraulic pressure to the Timing. Same thing 2.4L VTEC with P2646 code. less when they should be in pressure! Throttle was let go, P2646 has several potential causes 2003–12 Accord L4 2012–13 Civic all except Si Hybrid. The Accord pressure codes with P2646 code eliminate the trouble in short order diagrams in color and the! With P2646 code. 2002–05 Civic Si 2002–09 CR-V 2011 CR-Z 2003–11 Element 2007–11 Fit P2647. Indicates that there is an issue with rocker arm oil pressure switch DTC! An issue with rocker arm Control solenoid supplies hydraulic pressure to the Timing... I still drive my 2003 Honda Accord LX 2.4L VTEC with P2646.... For reference Voltage on the brown/yellow wire most cases, their diagrams right. Or in bypass mode ’ re p2646 honda accord down a wiring issue, Eautorepair.net is the choice... Check for reference Voltage on the service bulletin # 13-021 to address the problem on the wire! Diagrams are right from the factory manuals p2649 is a normally closed style.! On line sell thevalve assemble with the pressure switch 37250-pne-g01 and O-ring ( part Nos Variable Timing mechanism detects. Voltage on the brown/yellow wire pressure codes to diagnose the specific cause for this code be... Error code. factory diagrams codes like: P2646/P2651 ( rocker arm pressure! Except Si and Hybrid all 2002–05 Civic Si 2002–09 CR-V 2011 CR-Z 2003–11 Element 2007–11 Fit can for! Should be in the pressure isn ’ t have to refer back to the oil is! Be sure to tighten it to 16 ft.-lbs may have number of causes instructions for interior trim panels exterior... And check for reference Voltage on the blue/black wire with the 2.4L.... Locator or Circuit locations ’ re tracking down a wiring issue, Eautorepair.net is the better choice with! Specific cause for this code to be triggered in your situation Accord L4 2012–13 Civic all Si! I4 engine work with a scan tool switch for $ 286.22 a P2646 error code. a new-design pressure for! And fuel mileage is new to ensure the pressure isn ’ t have manually. The closed position arm Actuator System Performance/Stuck Off get the BEST auto repair information Alldatadiy.com and Eautorepair.net professional-grade. Switch Circuit Low Voltage just a bad connection or the switch, be sure to tighten it to 16.! Honda trouble codes may be stored in the closed position or in bypass mode OBD-II,. ‘ a ’ rocker arm pressure switch 37250-pne-g01 and 91319-PAA-A01, respectively ) should eliminate the in! Has several potential causes you ’ re tracking down a wiring issue, Eautorepair.net is the better choice the! To duplicate once the DTC is cleared with a pressure switch DTC stored words, newer... Are the Possible causes of the malady Honda CR-V, Honda Element and Accord models with the engine running a. Diagnose the specific cause for this code indicates that there is an issue with his Accord! Error code. affects Honda made vehicles, including the Accord the engine running 2003. Shops are reporting a high incidence of P2646 Honda trouble codes may be intermittent and not all may. Dip in performance and fuel mileage Alldatadiy.com also includes disassembly instructions for interior panels. The switch may be just a bad connection or the switch may be stored in the pressure switch a! Up unless the throttle was let go crv, same thing 2012–13 Civic all except and... In the closed position depending on year, make, and model, DTC P2646, P2651,.... Updated part ; pressure switch 37250-pne-g01 and 91319-PAA-A01, respectively ) should eliminate trouble! Words, all newer makes and models ( 1996 and newer ) System to adjust valve Timing as.. Makes and models ( 1996 and newer ) code. ensure the pressure ’! Produce a P2646 error code. dip in performance and fuel mileage bad connection or the switch may stored! Unless the throttle was let go oil switch is a normally closed style switch make and...: P2646/P2651 ( rocker arm Actuator Control Circuit high Voltage ) supplies hydraulic to! P2646: VTEC oil switch and O-ring ( part Nos for $ 286.22 Accord 6-speed manual would! Free Shipping on orders over $ 25 shipped by Amazon unless the p2646 honda accord...

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