P0375: Timing Reference High Resolution Signal B
Do not keep driving
Expect reduced performance. Note whether the A-signal codes are also stored, since both together points at something they share rather than at either sensor.
What this code means
A fault in the second high-resolution timing reference, where two are fitted. Two references allow the module to cross-check one against the other, so a fault on one leaves the system working but no longer self-verifying — which is why the response is usually conservative rather than catastrophic.
Likely causes
Start here
- Faulty crankshaft position sensor · moderate
- Damaged reluctor or tone ring · specialist
- Corroded or loose connector · easy
Less common
- Damaged sensor cable shielding · moderate
Symptoms
Components involved
Information, not instruction
CarGeek is a reference, not a service manual. Its pages are written from public sources and from what other people have found, never from a manufacturer's own service information, so they can be wrong or incomplete for your particular vehicle. Some of what they describe carries real risk: high voltage, fuel under pressure, stored energy, hot and moving parts.
Have anything you intend to act on checked by a trained person against the manufacturer's own procedure for your vehicle. Nothing here replaces that procedure.
Community experience
Be the first to write this up
Nothing posted about this yet. Whatever you found is worth writing down — even a dead end saves someone the same afternoon.
What makes one worth reading:
- The car — make, model, year and engine. The same fault behaves differently on each.
- What you measured, not only what you replaced.
- What actually fixed it — or that nothing did, which is worth knowing too.
Sign in or create an account to add what you found about P0375.