P1335 GMC Code - Crankshaft Position Circuit
Quick Answer
The P1335 code for GMC vehicles refers to an issue with the Crankshaft Position Circuit. Common causes include Faulty crankshaft position sensor, Damaged wiring in the crankshaft position circuit, Electrical issues in the ECM. 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
- P1335 GMC indicates Crankshaft Position Circuit.
- Common causes
- Common causes include Faulty crankshaft position sensor, Damaged wiring in the crankshaft position circuit, Electrical issues in the ECM.
- 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 P1335 GMC Description
The P1335 code for GMC vehicles refers to an issue with the Crankshaft Position Circuit. The crankshaft position sensor is a vital component in the engine management system, as it helps monitor the position and rotational speed of the crankshaft. This information is crucial for the engine control module (ECM) to accurately determine ignition timing, fuel injection timing, and other engine functions. When the ECM detects a problem with the crankshaft position circuit, it triggers the P1335 trouble code.
Common Causes of P1335 GMC
- Faulty crankshaft position sensor
- Damaged wiring in the crankshaft position circuit
- Electrical issues in the ECM
- Engine overheating causing sensor malfunction
- Incorrect installation of the sensor
Symptoms of P1335 GMC
- Engine misfires
- Rough idling
- Stalling
- Decreased fuel efficiency
- Difficulty starting the engine
How to Fix P1335 GMC
- Diagnose the issue by connecting a diagnostic scanner to retrieve the trouble codes and perform a visual inspection of the crankshaft position sensor and wiring.
- Replace the faulty crankshaft position sensor if it is found to be the cause of the issue.
- Repair or replace any damaged wiring in the crankshaft position circuit.
- Clear the trouble codes from the ECM and perform a test drive to ensure the issue is resolved.
- If the problem persists, further diagnostic testing may be required to identify any other underlying issues.
Cost to Fix P1335 GMC
The cost of repairing a P1335 code can vary depending on the specific cause of the issue and the labor rates in your area. On average, replacing a faulty crankshaft position sensor can cost between $100 and $300, including parts and labor. However, additional costs may apply if there are wiring issues or other components that need to be replaced. It's recommended to consult with a qualified mechanic or auto repair shop for a more accurate estimate based on your vehicle's make and model.
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