P153C 2018 GMC Sierra Code - Engine Speed Signal Message Counter Incorrect
Quick Answer
The diagnostic trouble code P153C for the 2018 GMC Sierra relates to the engine speed signal message counter being incorrect. Common causes include Faulty crankshaft position sensor, Wiring issues or poor connections, Malfunctioning 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
- P153C 2018 GMC Sierra indicates Engine Speed Signal Message Counter Incorrect.
- Common causes
- Common causes include Faulty crankshaft position sensor, Wiring issues or poor connections, Malfunctioning 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 P153C 2018 GMC Sierra Description
The diagnostic trouble code P153C for the 2018 GMC Sierra relates to the engine speed signal message counter being incorrect. This code indicates that the engine control module (ECM) has detected a discrepancy between the expected and actual engine speed signal message counts. The engine speed signal is crucial for various engine functions, including ignition timing, fuel injection, and transmission shifting. When the ECM receives an incorrect message count, it may lead to erratic engine performance, misfires, and potential drivability issues.
Common Causes of P153C 2018 GMC Sierra
- Faulty crankshaft position sensor.
- Wiring issues or poor connections.
- Malfunctioning ECM.
- Timing chain or belt problems.
- Camshaft position sensor failure.
Symptoms of P153C 2018 GMC Sierra
- Engine misfires or hesitation during acceleration.
- Rough idling or stalling.
- Illumination of the check engine light.
- Decreased fuel efficiency.
- Transmission shifting issues.
How to Fix P153C 2018 GMC Sierra
- Diagnose the code using a scan tool to confirm the issue and pinpoint the exact cause.
- Inspect the crankshaft position sensor and related wiring for any damage or malfunctions.
- Test the ECM for proper functioning and reprogram if necessary.
- Check the timing chain or belt for wear and proper alignment.
- Replace any faulty components such as the crankshaft position sensor or ECM as needed.
Cost to Fix P153C 2018 GMC Sierra
The cost of repairing the P153C code on a 2018 GMC Sierra can vary depending on the specific cause of the issue and the labor rates in your area. On average, the repair costs for this type of issue can range from $200 to $500, including parts and labor. It's important to note that diagnostic time and labor rates can vary, so it's recommended to obtain quotes from local auto repair shops for a more accurate estimate. Keep in mind that rates may be higher at dealerships and metropolitan areas, while independent shops may offer more competitive pricing.
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Frequently Asked Questions about P153C 2018 GMC Sierra Code
1. What does the OBDII code P153C mean on a 2018 GMC Sierra?
P153C indicates that the Engine Control Module (ECM) has detected an issue with the engine speed signal message counter, which may be incorrect or inconsistent.
2. What are common symptoms of the P153C code on a 2018 GMC Sierra?
Symptoms may include a check engine light, erratic engine performance, reduced power, or difficulty accelerating smoothly.
3. What causes the P153C code to appear on a 2018 GMC Sierra?
Common causes include a faulty crankshaft position sensor, damaged wiring or connectors, a malfunctioning ECM, or communication issues between control modules.
4. Can the P153C code cause drivability issues in a 2018 GMC Sierra?
Yes, the code can cause drivability issues such as engine hesitation, rough idling, or reduced performance due to incorrect engine speed data.
5. How is the P153C code diagnosed on a 2018 GMC Sierra?
A technician will use a scan tool to confirm the code, inspect wiring and connectors, check the crankshaft position sensor, and test for proper communication between modules.
6. Can a bad crankshaft position sensor trigger the P153C code?
Yes, a malfunctioning or failing crankshaft position sensor is one of the primary causes of the P153C code.
7. Is the P153C code serious on a 2018 GMC Sierra?
While the vehicle may still be drivable, the code can lead to reduced performance or further engine problems if not addressed promptly.
8. How do you fix the P153C code on a 2018 GMC Sierra?
Repairs may involve replacing a faulty crankshaft position sensor, repairing damaged wiring or connectors, reprogramming or replacing the ECM, or addressing module communication issues.
9. Can clearing the P153C code resolve the issue on a 2018 GMC Sierra?
Clearing the code may temporarily turn off the check engine light, but the underlying issue must be resolved to prevent the code from returning.
10. Should I take my 2018 GMC Sierra to a professional for the P153C code?
Yes, due to the complexity of diagnosing communication and sensor issues, it is recommended to have a qualified technician address the problem.
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