P1345: Crankshaft Position - Camshaft Position Correlation
2 vehicles · 2 makes · $600-$1,500 repair
Most Reported On
P1345 is an OBD-II diagnostic trouble code meaning “Crankshaft Position - Camshaft Position Correlation.” A manufacturer-specific powertrain code; on General Motors vehicles (Chevrolet, GMC, Buick, Cadillac, Pontiac, Saturn, Isuzu) it is set when the signals from the crankshaft position sensor and camshaft position sensor fall out of their expected relationship - commonly cited as roughly 1.5 to 2 percent of crankshaft rotation out of sync. The PCM needs this correlation to time spark and fuel correctly. Symptoms include a check engine light, rough idle or misfire, hard starting, and stalling. On older GM V6/V8 engines this frequently points to a worn timing chain, a real mechanical repair that should not be ignored. Other makes (including Honda, Suzuki and some imports) assign P1345 a different meaning, so confirm the definition for your make before diagnosing. This code is most commonly reported on 1994-1996 Buick Roadmaster (Roadmaster Sedan, Roadmaster Estate Wagon, Roadmaster Limited), and 2014-2025 BMW 2 Series (228i, 228i xDrive, 230i, 230i xDrive, M235i, M240i, 228i Gran Coupe, M235i xDrive Gran Coupe), with repair costs ranging from $600 to $1,500.
Common Causes
Typical Repair Cost
Based on 2 documented vehicle-specific issues. Actual cost depends on root cause and vehicle.
Diagnostic Tools
P1345 does not use the standard P/B/C/U prefix. It may be a manufacturer-specific code, so verify that a scanner supports your exact year, model and module before buying.
FAQ
What does P1345 mean?
P1345 stands for "Crankshaft Position - Camshaft Position Correlation." A manufacturer-specific powertrain code; on General Motors vehicles (Chevrolet, GMC, Buick, Cadillac, Pontiac, Saturn, Isuzu) it is set when the signals from the crankshaft position sensor and camshaft position sensor fall out of their expected relationship - commonly cited as roughly 1.5 to 2 percent of crankshaft rotation out of sync. The PCM needs this correlation to time spark and fuel correctly. Symptoms include a check engine light, rough idle or misfire, hard starting, and stalling. On older GM V6/V8 engines this frequently points to a worn timing chain, a real mechanical repair that should not be ignored. Other makes (including Honda, Suzuki and some imports) assign P1345 a different meaning, so confirm the definition for your make before diagnosing.
What are the most common causes of P1345?
The most common causes of P1345 are: Stretched or worn timing chain / failed chain tensioner or guides (very common on higher-mileage GM engines), Faulty camshaft position sensor, Faulty crankshaft position sensor or damaged reluctor wheel, Loose or improperly seated sensor at its mounting, or wrong sensor installed, Damaged wiring, connector corrosion, or shielding fault on either sensor circuit, Incorrect ignition/cam timing after recent timing component service, Crankshaft position variation relearn not performed after PCM or sensor replacement. The specific cause varies by vehicle.
How much does it cost to fix P1345?
Repair costs for P1345 range from $600 to $1,500, depending on the vehicle and root cause.
Which vehicles are affected by P1345?
Au7o has documented P1345 across 2 vehicle models from 2 manufacturers: BMW, Buick.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.