P150C 2017 Chevrolet Silverado Code - Transmission Control Module Engine Speed Request Signal Message Counter Incorrect
Quick Answer
To improve vehicle shift, and feel, the Transmission Control Module (TCM) is constantly sending the Engine Control Module (ECM) serial data messages with information regarding its request for modifying engine speed or torque. Common causes include Faulty Transmission Control Module (TCM), Transmission Control Module harness is open or shorted, Transmission Control Module circuit poor electrical connection. 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
- P150C 2017 Chevrolet Silverado indicates Transmission Control Module Engine Speed Request Signal Message Counter Incorrect.
- Common causes
- Common causes include Faulty Transmission Control Module (TCM), Transmission Control Module harness is open or shorted, Transmission Control Module circuit poor electrical connection.
- 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.
Code P150C 2017 Chevrolet Silverado Description
What are the Possible Causes of the DTC P150C 2017 Chevrolet Silverado?
- Faulty Transmission Control Module (TCM)
- Transmission Control Module harness is open or shorted
- Transmission Control Module circuit poor electrical connection
How to Fix the DTC P150C 2017 Chevrolet Silverado?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P150C 2017 Chevrolet Silverado code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P150C 2017 Chevrolet Silverado Code
1. What does the OBDII code P150C mean on a 2017 Chevrolet Silverado?
P150C indicates that the Transmission Control Module (TCM) has detected an issue with the engine speed request signal message counter, which may suggest a communication problem between the TCM and Engine Control Module (ECM).
2. What are the common symptoms of code P150C on a 2017 Silverado?
Symptoms may include harsh shifting, delayed gear engagement, reduced engine performance, or the Check Engine Light being illuminated.
3. What causes the P150C code on a 2017 Chevrolet Silverado?
Common causes include a faulty TCM, ECM software issues, damaged wiring or connectors in the communication circuit, or a poor electrical ground.
4. Can I drive my 2017 Chevrolet Silverado with a P150C code?
While the vehicle may still be drivable, operating it with this code can lead to poor performance, potential transmission damage, or unsafe driving conditions. It’s best to address the issue promptly.
5. How can I diagnose the P150C code on my Silverado?
Start by scanning for additional codes, inspecting the wiring and connectors between the TCM and ECM, and checking for software updates for the control modules. A professional diagnostic scan tool may be required.
6. What repairs can fix the P150C code on a 2017 Chevrolet Silverado?
Repairs might include reprogramming the TCM or ECM, repairing or replacing damaged wiring or connectors, and, in rare cases, replacing the TCM or ECM.
7. Can a software update fix the P150C code on my Silverado?
Yes, a software update for the TCM or ECM can sometimes resolve communication errors like the P150C code. Check with a dealership or qualified technician.
8. How much does it cost to fix the P150C code on a 2017 Chevrolet Silverado?
The cost varies depending on the cause. Simple repairs like fixing wiring may cost $100-$300, while replacing a TCM or ECM can range from $500 to $1,500.
9. Does the P150C code mean my transmission is failing?
Not necessarily. The code points to a communication issue between the TCM and ECM rather than a direct transmission failure. However, ignoring it may cause transmission problems over time.
10. Can a weak battery cause the P150C code on a 2017 Silverado?
Yes, a weak or failing battery can sometimes cause communication errors between control modules, including the P150C code. Ensure the battery and charging system are in good condition.
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