Timing Reference High Resolution Signal A Malfunction
P0370 is an OBD-II trouble code that indicates timing reference high resolution signal a malfunction. This page explains what the code means, what issues may trigger it, common symptoms and where to look next.
P0370 code meaning is one of the most common OBD-II searches when a warning light appears on the dashboard.
Drivers searching for P0370 usually want to know what the code means, whether the car is safe to drive and what part may need testing first.
Likely causes
- • Timing issue
- • Faulty cam/crank sensor
- • Oil flow or VVT problem
- • Wiring or connector issue
- • Component failure in the affected system
- • Intermittent signal or control fault
Symptoms
- • Check engine light illuminated
- • Hard starting or stalling
- • Reduced performance
Severity
High
Can you keep driving?
Driving may be risky if the engine is running poorly, stalling or showing strong timing-related symptoms.
Common fix areas
- • Scan all fault codes and freeze-frame data
- • Inspect wiring, connectors and grounds
- • Confirm repair with a retest after clearing codes
Manufacturer notes
FAQs
What does P0370 mean?
P0370 means timing reference high resolution signal a malfunction.
What can cause P0370?
Common causes include component failure, wiring faults, incorrect sensor readings, leaks, pressure issues or related upstream faults in the same system.
Can I keep driving with P0370?
That depends on how the car is behaving. If there is rough running, overheating, loss of power or stalling, it should be diagnosed quickly.
Does P0370 always mean I need a new part?
No. A fault code points you to a system or condition, but proper diagnosis is still needed before replacing parts.