DTC Code P1345 – What does this code mean?

<ul> <li><a href="/problems/engine-warning-light-on"><b>Engine Light ON</b></a>: The check engine light or service engine soon warning light illuminates, indicating a potential issue with the crankshaft and camshaft position correlation.</li> <li><a href="/problems/unable-to-start-engine"><b>Engine Hard to Start</b></a>: Difficulty in starting the engine may occur due to improper synchronization between the crankshaft and camshaft positions.</li> <li><a href="/problems/engine-stalls-when-braking"><b>Engine Stall While Driving</b></a>: The engine may unexpectedly stall while driving, which can be linked to the misalignment or incorrect correlation between the crankshaft and camshaft positions.</li> </ul>

<ul><li>Engine mechanical condition may lead to incorrect valve timing, causing a misalignment between the crankshaft and camshaft positions.</li><li>Loose mounting of the camshaft or crankshaft sensors can result in inaccurate readings, affecting the correlation between the two components.</li><li>A faulty camshaft position sensor can provide incorrect data to the engine control module, disrupting the synchronization with the crankshaft.</li><li>A defective crankshaft position sensor can lead to improper timing signals, causing a misalignment with the camshaft position.</li></ul>

<ul> <li><b>Verify DTC Code</b>: Confirm the presence of DTC P1345 using an OBD-II scanner. Check for any additional codes, such as P0335 or P0340, which may indicate related sensor issues.</li> <li><b>Inspect Wiring and Connectors</b>: Visually inspect the wiring and connectors for the crankshaft and camshaft position sensors. Look for signs of damage, corrosion, or loose connections that could affect signal integrity.</li> <li><b>Check Sensor Alignment</b>: Ensure that the crankshaft and camshaft position sensors are properly aligned and mounted. Misalignment can cause incorrect readings and trigger the P1345 code.</li> <li><b>Test Crankshaft Position Sensor</b>: Use a multimeter to test the crankshaft position sensor for proper resistance and signal output. Compare the readings to the manufacturer's specifications.</li> <li><b>Test Camshaft Position Sensor</b>: Similarly, test the camshaft position sensor for correct resistance and signal output. Ensure the readings align with the manufacturer's specifications.</li> <li><b>Check Timing Chain/Belt</b>: Inspect the timing chain or belt for wear or misalignment. A misaligned timing component can cause a correlation error between the crankshaft and camshaft positions.</li> <li><b>Perform ECM Relearn Procedure</b>: If all components are functioning correctly, perform an ECM relearn procedure to reset the correlation data between the crankshaft and camshaft positions.</li></ul>

<p>The DTC P1345 indicates a <b>Crankshaft Position-Camshaft Position Correlation</b> issue. This is a <b>critical</b> problem as it affects the engine's timing, potentially leading to severe engine damage if not addressed promptly. <ul><li>Delayed repair can result in <b>engine misfires</b>, <b>poor performance</b>, and <b>increased emissions</b>.</li><li>Immediate attention is required to prevent further damage and ensure vehicle safety.</li></ul></p>