Mazda Error Code P1345: How to Fix It
Medium 1-2 hours High Severity
Verified June 2026
- Error Code
- P1345
- Brand
- Mazda
- Product Type
- automotive
- Severity
- High
- DIY Difficulty
- Medium
- Estimated Fix Time
- 1-2 hours
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Tools You'll Need
- OBD2 scanner
- Socket wrench set (8mm and 10mm)
- Multimeter
- Electrical contact cleaner
- Anti-seize compound
- Basic hand tools
How to Fix Error Code P1345
-
Turn off engine and ensure safety
Always disconnect the battery before working on electrical components to prevent injury or damage to the ECM. -
Connect OBD2 scanner and verify code
-
Locate the camshaft position sensor
-
Inspect wiring and connector
-
Test sensor with multimeter
Be careful around moving engine parts when testing with engine running. -
Remove and replace sensor if faulty
-
Clear codes and test drive
Parts You May Need
Camshaft position sensor
Check Price on Amazon
OBD2 code reader
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Electrical contact cleaner
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Camshaft position sensor
Check Price on Amazon
OBD2 code reader
Check Price on Amazon
Electrical contact cleaner
Check Price on Amazon
Camshaft position sensor
Check Price on Amazon
OBD2 code reader
Check Price on Amazon
Electrical contact cleaner
Check Price on Amazon
Camshaft position sensor
Check Price on Amazon
OBD2 code reader
Check Price on Amazon
Electrical contact cleaner
Check Price on Amazon
Camshaft position sensor
Check Price on Amazon
OBD2 code reader
Check Price on Amazon
Electrical contact cleaner
Check Price on Amazon
Camshaft position sensor
Check Price on Amazon
OBD2 code reader
Check Price on Amazon
Electrical contact cleaner
Check Price on Amazon
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When to Call a Professional
Call a professional mechanic if you're uncomfortable working around the engine, if multiple codes are present indicating broader timing issues, if the problem persists after sensor replacement, or if you suspect timing chain or belt problems. Internal engine timing issues require specialized tools and expertise.Frequently Asked Questions
Can I drive with Mazda error code P1345?
It's not recommended to drive with P1345 as it can cause engine misfires, poor performance, and potential engine damage. The vehicle may run rough or stall unexpectedly, creating safety risks.
How much does it cost to fix P1345 on a Mazda?
DIY repair typically costs $50-150 for a new camshaft position sensor. Professional repair can range from $200-400 including parts and labor, depending on sensor location and accessibility.
What causes Mazda P1345 error code?
P1345 is usually caused by a faulty camshaft position sensor, damaged wiring harness, corroded electrical connections, or rarely, timing chain/belt issues affecting the camshaft's relationship to the crankshaft.
How do I know if my camshaft position sensor is bad?
Common symptoms include rough idling, engine misfires, difficulty starting, reduced power, poor fuel economy, and the check engine light. You can confirm with an OBD2 scanner and multimeter testing.
Will P1345 clear itself on Mazda vehicles?
No, P1345 will not clear itself. The underlying problem must be fixed and the code manually cleared with an OBD2 scanner. The error will return if the root cause isn't addressed.