Exhaust Valve Control Solenoid Circuit (Bank 2)
The P0085 code means the vehicle's onboard diagnostic system has detected: Exhaust Valve Control Solenoid Circuit (Bank 2). This is a moderate severity code.
- Keep driving?
- Short distances only
- DIY difficulty
- hard
- Estimated cost
- $80 - $450 (parts and labor)
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What Are the Symptoms of P0085?
- Check Engine Light illuminated
- Rough idle and poor performance
- Reduced fuel economy
- Engine stalling at low RPM
What Causes P0085? (Most Likely First)
- Faulty exhaust VVT solenoid on Bank 2 Very High
- Low or dirty engine oil High
- Damaged wiring to Bank 2 exhaust VVT solenoid Moderate
- PCM driver circuit failure Low
Can I Still Drive with P0085?
Short distances only. P0085 is rated moderate severity. Keep trips short and get it diagnosed soon rather than waiting for symptoms to worsen.
Frequently Asked Questions
What does the exhaust VVT solenoid on Bank 2 do?
It controls oil flow to the Bank 2 exhaust camshaft VVT actuator, adjusting exhaust valve timing on that cylinder bank for optimal performance and emissions.
Is P0085 the same as P0078 but for Bank 2?
Yes, P0085 is the Bank 2 equivalent of P0078. The same diagnostic procedures apply, but on the opposite side of the engine.
Can I drive with P0085?
You can drive short distances, but Bank 2 exhaust valve timing will not be controlled. This can increase emissions and reduce fuel economy.
Mechanics Guide Step-by-step diagnosis
How Do You Diagnose P0085?
-
Check engine oil level and quality. Change oil if overdue.
-
Locate Bank 2 exhaust VVT solenoid. Measure resistance (typical 6.9-7.9 ohms).
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Inspect wiring for heat damage from nearby exhaust components.
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Use scan tool to command solenoid and monitor Bank 2 exhaust camshaft position.
Sources 2
This page is built from documented references. Verify against your own service info before repair work.
- SAE J2012Diagnostic Trouble Code Definitions (defines the generic OBD-II code ranges)
- Cross-checked against the SAE J2012:2002 DTC table (2026-08-27)archived scan of the SAE standard — readable copy, not SAE’s current edition
Which Vehicles Commonly Get P0085?
- 2010-2020 Ford F-150 (3.5L EcoBoost)
- 2012-2019 Toyota Tacoma (3.5L V6)
- 2008-2018 Honda Pilot (3.5L V6)
- 2011-2020 Jeep Grand Cherokee (3.6L V6)
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