P0372 Code - Timing Reference High Resolution Signal 'A' Too Few Pulses
Quick Answer
The P0372 diagnostic trouble code (DTC) indicates that the Timing Reference High Resolution Signal 'A' has too few pulses. Common causes include Faulty camshaft position sensor, Wiring issues or poor connections in the camshaft position sensor circuit, Damaged or worn-out timing chain or belt. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P0372 indicates Timing Reference High Resolution Signal 'A' Too Few Pulses.
- Common causes
- Common causes include Faulty camshaft position sensor, Wiring issues or poor connections in the camshaft position sensor circuit, Damaged or worn-out timing chain or belt.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code P0372 Description
The P0372 diagnostic trouble code (DTC) indicates that the Timing Reference High Resolution Signal 'A' has too few pulses. In modern vehicles, the engine's timing is crucial for optimal performance and efficiency. The Engine Control Module (ECM) relies on signals from various sensors to precisely control the ignition timing and fuel injection. The Timing Reference High Resolution Signal 'A' is a signal sent by the camshaft position sensor to the ECM to determine the position of the camshaft in relation to the crankshaft.
Common Causes of P0372
- Faulty camshaft position sensor
- Wiring issues or poor connections in the camshaft position sensor circuit
- Damaged or worn-out timing chain or belt
- ECM software issues
- Mechanical engine problems affecting camshaft timing
Symptoms of P0372
- Engine misfires
- Rough idling or stalling
- Decreased fuel efficiency
- Loss of power
- Illumination of the Check Engine Light
How to Fix P0372
- Diagnose the issue by using a scan tool to read the DTC and inspect the camshaft position sensor and related wiring.
- Replace the camshaft position sensor if it is found to be faulty.
- Check and repair any damaged wiring or connections in the camshaft position sensor circuit.
- Inspect and replace the timing chain or belt if necessary.
- Clear the DTC and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P0372
The cost of repairing a P0372 code can vary depending on the specific cause of the issue. Typically, the cost of a new camshaft position sensor ranges from $50 to $150, while the cost of labor for diagnosis and repair can range from $100 to $300. Overall, the total repair cost for addressing a P0372 code can be estimated to be between $150 and $450. It is important to note that labor rates and part prices can vary significantly based on location, vehicle make and model, and the specific repair shop. It is advisable to obtain quotes from multiple repair shops to ensure a competitive price.
When is the Code Detected?
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Code P0372 Information for Specific Makes
- P0372 Mercedes-Benz — Timing Reference High Resolution Signal 'A' Too Few Pulses
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