Camshaft Position Sensor B Circuit Low (Bank 2)
The P0392 code means the vehicle's onboard diagnostic system has detected: Camshaft Position Sensor B Circuit Low (Bank 2). This is a moderate severity code.
- Keep driving?
- Short distances only
- DIY difficulty
- moderate
- Estimated cost
- $60 - $350 (parts and labor)
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What Are the Symptoms of P0392?
- Check Engine Light on
- Engine runs rough on Bank 2
- Reduced power
- Possible stalling
What Causes P0392? (Most Likely First)
- Short to ground in cam sensor B wiring Very High
- Failed sensor (shorted) High
- Corroded connector Moderate
- PCM input shorted Low
Can I Still Drive with P0392?
Short distances only. P0392 is rated moderate severity. Keep trips short and get it diagnosed soon rather than waiting for symptoms to worsen.
Frequently Asked Questions
What causes circuit low on cam sensor B?
A short to ground in the sensor wiring or an internally failed sensor.
Is Bank 2 cam sensor hard to access?
On V-engines, Bank 2 sensors are often at the rear of the engine near the firewall, making access more difficult.
Can I test the sensor with a multimeter?
Yes, check resistance and look for shorts to ground. However, an oscilloscope gives a more complete picture of sensor health.
Mechanics Guide Step-by-step diagnosis
How Do You Diagnose P0392?
-
Measure cam sensor B signal voltage.
-
Disconnect sensor and check for short to ground.
-
Inspect connector.
-
Replace sensor if shorted internally.
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 P0392?
- 2010-2020 Chevrolet Traverse (3.6L V6)
- 2012-2019 Ford Edge (3.5L V6)
- 2008-2018 Toyota Sienna (3.5L V6)
- 2011-2020 Honda Odyssey (3.5L V6)
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