Timing Reference High Resolution Signal B Intermittent
The P0376 code means the vehicle's onboard diagnostic system has detected: Timing Reference High Resolution Signal B Intermittent. This is a critical severity code.
- Keep driving?
- No — stop driving
- DIY difficulty
- hard
- Estimated cost
- $100 - $600 (parts and labor)
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What Are the Symptoms of P0376?
- Intermittent Check Engine Light
- Random misfires
- Occasional stalling
- Hesitation under acceleration
What Causes P0376? (Most Likely First)
- Intermittent cam position sensor B failure Very High
- Loose or corroded connector High
- Cracked wiring at flex point Moderate
- Cam sensor B failing under heat Low
Can I Still Drive with P0376?
No — stop driving. P0376 is rated critical severity. Continuing to drive in this state risks further damage — get it looked at before your next trip.
Frequently Asked Questions
Why is the cam sensor failing intermittently?
Heat, vibration, and age degrade the sensor and its connections. The sensor may work when cold and fail when hot.
How do I catch an intermittent cam sensor failure?
Connect a scan tool and drive while monitoring cam sensor data. Record the data and look for momentary signal loss.
Should I replace the sensor or repair wiring?
Diagnose first with the wiggle test. If the connector is the issue, repair it. If the sensor is failing under heat, replace the sensor.
Mechanics Guide Step-by-step diagnosis
How Do You Diagnose P0376?
-
Monitor cam sensor B signal while driving. Watch for dropouts.
-
Wiggle test connector and wiring.
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Check for heat-related failures by monitoring during warm-up.
-
Inspect connector pins.
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 P0376?
- 2010-2020 Honda Odyssey (3.5L V6)
- 2012-2019 Toyota 4Runner (4.0L V6)
- 2008-2018 Ford Explorer (3.5L V6)
- 2011-2020 Nissan Pathfinder (3.5L V6)
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