What does code P0378 mean?
Intermittent or unstable timing reference signal B
OBD-II Code
P0378 — Timing Reference High Resolution Signal B Intermittent
Intermittent or unstable timing reference signal B
Common symptoms
- Engine stalling
- jerking
Possible causes
- Loose connections
- excessive vibration
Initial recommendation
Inspect wiring and sensors, secure all connectors.
Safety notice
This information is for guidance only and does not replace a physical vehicle inspection or diagnosis by a qualified mechanic. If the vehicle has severe power loss, smoke, a fuel odor, overheating, brake or steering problems, or any unsafe behavior, avoid driving it and seek professional inspection.
Analyze this code with MecaOBD
Use the app to combine code P0378 with your vehicle's actual symptoms for more complete diagnostic guidance.
Go to the app View more codes