What are the methods to resolve the P0337 fault code?
2 Answers
Fault code P0336 indicates a circuit malfunction in the crankshaft position sensor. This fault is sporadic and can be resolved by simply replacing the 7X crankshaft position sensor harness. Below are the steps to clear the P0336 fault code: 1. After troubleshooting the vehicle, it is necessary to clear the fault code. When clearing the fault code, strictly follow the specific method designated for the particular vehicle model. 2. Avoid randomly using the method of disconnecting the battery negative terminal to clear the fault code. Carelessness may lead to two abnormal conditions: first, it may cause the adjustment center of some vehicle models to lose normal records. Most vehicle computers have an automatic memory function, and if the battery negative terminal is disconnected, useful engine operation data stored in the memory will be erased. 3. Secondly, the above method may result in the loss of some normal functions, such as the common example of audio system lockout.
Last time I also encountered the P0337 trouble light coming on, don't panic. First step is to check the wiring connections, especially if the sensor connector is loose or corroded - use contact cleaner if necessary. Second, check if the sensor itself is dirty, remove it to clean dust and grease, particularly near the crankshaft position. Third, measure the gap between sensor and flywheel - too close or too far may cause false readings, manuals usually specify ideal clearance as 0.8-1.2mm. Fourth, inspect the flywheel ring gear for metal debris or damage that could interfere with signals. Finally after replacing the sensor, use a scanner to clear codes - never reset by disconnecting battery or hidden issues may be masked. The whole process takes about 2 hours DIY, but keep a mechanic's toolset handy for easier work.
