P0370
Timing Reference High Resolution Signal A Malfunction
This code indicates timing reference high resolution signal a malfunction. It relates to the ignition system or misfire and may affect performance, emissions, or drivability depending on the exact failure.
Timing Reference High Resolution Signal A Malfunction
Common causes
- medium
Faulty spark plugs or ignition coils
Worn or failed ignition components are a common source of misfire-related codes.
Typical part cost: $100-400
- medium
Fuel delivery issue
A clogged injector or weak fuel pump can cause uneven combustion.
Typical part cost: $100-400
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First things to check
- 1Confirm the code with a scan tool and check for additional related codes.
- 2Inspect the relevant sensors, wiring, and connectors for damage or corrosion.
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Related codes
See related trouble codes
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Frequently asked questions
What does P0370 mean?
P0370 means "Timing Reference High Resolution Signal A Malfunction". It is a generic OBD-II code that points to a fault in the ignition system or misfire.
Can I keep driving with this code?
This code points to a problem that can cause damage or affect safety. Avoid driving and have the vehicle diagnosed promptly. Use the Wrenchify app for a full diagnosis specific to your vehicle.
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