Intake Valve Control Solenoid Circuit Low (Bank 1)
The P0076 code means the vehicle's onboard diagnostic system has detected: Intake Valve Control Solenoid Circuit Low (Bank 1). This is a moderate severity code.
- Keep driving?
- Short distances only
- DIY difficulty
- hard
- Estimated cost
- $80 - $400 (parts and labor)
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Common Symptoms
- Check Engine Light on
- Engine may idle roughly or stall
- Reduced power during acceleration
- Possible engine knocking or rattling noise
Probable Causes (Ranked by Likelihood)
- Short to ground in VVT solenoid wiring Very High
- Internally shorted VVT solenoid High
- Corroded connector causing low resistance path Moderate
- PCM driver circuit stuck on Low
Step-by-Step Diagnostic Procedure
-
Measure VVT solenoid resistance. A reading significantly below spec (below 5 ohms) indicates an internal short.
-
Disconnect the solenoid and check if the code clears. If it does, the solenoid is faulty.
-
Inspect the wiring harness for chafing or shorts to ground, especially near hot exhaust components.
-
With solenoid disconnected, check PCM driver output voltage. It should cycle between 0V and battery voltage.
Common Fixes by Vehicle
What techs usually find when diagnosing P0076 on specific vehicles — tap your vehicle for the fix and the exact part:
2003-2011 Honda Accord/Element 2.4L K24 Easy DIY
Intake VTC oil control valve (OCV) electrical circuit open or shorted to ground. Check the connector for oil contamination — a leaking OCV o-ring wicks oil into the harness. Replace the solenoid and the short 6-inch pigtail harness if oil-soaked. Verify ECM ground integrity.
Labor: 30-60 min2008-2015 Honda Accord/Civic 2.4L K24Z Easy DIY
Bank 1 intake valve control solenoid low side driver circuit open. Most commonly the solenoid itself has failed open internally. Replace with Honda OEM; avoid aftermarket which often report false open-circuit errors. Do a full ECM reset after replacement to clear adaptive learning.
Labor: 45 min2005-2014 Honda Pilot/Odyssey/Ridgeline 3.5L J35 Easy DIY
Intake rocker OCV circuit low — open-circuit often after a timing belt service where a tech forgets to reconnect the solenoid connector or pinches the wiring. Visually verify all connectors at the front of both cylinder heads. Replace OCV if wiring is intact.
Labor: 30-45 minFrequently Asked Questions
What does circuit low mean for a VVT solenoid?
Circuit low means the PCM detects lower voltage or resistance than expected, usually due to a short circuit in the wiring or a failed solenoid.
Can I just replace the solenoid to fix P0076?
Often yes, but first verify the wiring is intact. A shorted wire will destroy a new solenoid and set the code again.
Does P0076 affect fuel economy?
Yes, when the VVT system is not functioning correctly, the engine cannot optimize valve timing, which can decrease fuel economy by 5-15%.
Sources
This page is built from documented references. Verify against your own service info before repair work.
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