P179B 2014 Chevrolet Silverado Code - Transmission Range State Command Signal Message Counter Incorrect
Quick Answer
The P179B diagnostic trouble code (DTC) for a 2014 Chevrolet Silverado indicates that the Transmission Range State Command Signal Message Counter is incorrect. Common causes include Faulty transmission range sensor, Wiring issues or poor connections, Malfunctioning TCM. 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
- P179B 2014 Chevrolet Silverado indicates Transmission Range State Command Signal Message Counter Incorrect.
- Common causes
- Common causes include Faulty transmission range sensor, Wiring issues or poor connections, Malfunctioning TCM.
- 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 P179B 2014 Chevrolet Silverado Description
The P179B diagnostic trouble code (DTC) for a 2014 Chevrolet Silverado indicates that the Transmission Range State Command Signal Message Counter is incorrect. This code is related to the transmission control module (TCM) receiving an incorrect number of messages related to the transmission range state command signal. The transmission range state command signal is used to determine the gear position of the vehicle, allowing the TCM to control the transmission accordingly.
Common Causes of P179B 2014 Chevrolet Silverado
- Faulty transmission range sensor
- Wiring issues or poor connections
- Malfunctioning TCM
- Software glitches or updates needed
- Electrical interference or communication errors
Symptoms of P179B 2014 Chevrolet Silverado
- Harsh or delayed gear shifts
- Transmission slipping
- Inability to shift gears
- Transmission stuck in a specific gear
- Check Engine Light illuminated
How to Fix P179B 2014 Chevrolet Silverado
- Begin by conducting a thorough diagnosis using a scan tool to retrieve the specific trouble code and identify the root cause of the issue.
- Inspect the transmission range sensor and its wiring for any damage, corrosion, or loose connections. Replace or repair as necessary.
- Check the TCM for any signs of malfunction or software glitches. Perform any updates or reprogramming required by the manufacturer.
- Clear the DTC and reset the TCM to ensure proper communication and operation.
- Test drive the vehicle to verify that the issue has been resolved and that the transmission is functioning correctly.
Cost to Fix P179B 2014 Chevrolet Silverado
The typical repair costs for addressing a P179B code on a 2014 Chevrolet Silverado can vary depending on the specific cause of the issue. In general, parts such as a new transmission range sensor or TCM can range from $150 to $500, while labor costs can add another $100 to $300. Overall, the total repair cost for this issue could be anywhere from $250 to $800. It's important to note that diagnosis time and labor rates at auto repair shops can vary, so it's advisable to check with local shops for a more accurate estimate.
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Frequently Asked Questions about P179B 2014 Chevrolet Silverado Code
1. What does OBDII code P179B mean on a 2014 Chevrolet Silverado?
Code P179B indicates that the Transmission Range State Command Signal Message Counter is incorrect, meaning the transmission control module (TCM) is receiving inconsistent or invalid data related to the transmission range state.
2. What are the symptoms of code P179B in a 2014 Chevy Silverado?
Common symptoms include erratic shifting, the transmission stuck in one gear, failure to shift properly, or the illumination of the check engine light.
3. What causes code P179B to appear in a Chevrolet Silverado?
This code can be caused by faulty wiring or connectors, a malfunctioning transmission range sensor, a defective transmission control module (TCM), or software issues.
4. Can a bad transmission range sensor cause code P179B?
Yes, a faulty transmission range sensor can cause the TCM to receive incorrect data, leading to the P179B error code.
5. Is it safe to drive with code P179B active in a 2014 Silverado?
Driving with this code may not be safe, as it can result in erratic shifting or the transmission failing to operate properly, which could compromise vehicle control.
6. How do you diagnose code P179B on a 2014 Chevrolet Silverado?
Diagnosis typically involves scanning the vehicle with an OBDII scanner, inspecting the transmission range sensor and its wiring, and checking the TCM for faults or software updates.
7. Can a software update fix code P179B in a Chevy Silverado?
In some cases, a TCM software update from the dealership may resolve the issue if it’s related to a known software glitch.
8. What repairs are commonly required to fix code P179B?
Repairs may include replacing the transmission range sensor, repairing or replacing damaged wiring or connectors, or replacing the TCM if it’s defective.
9. How much does it cost to fix code P179B on a 2014 Silverado?
Repair costs can vary widely depending on the exact cause, but replacing a transmission range sensor typically costs between $150 and $400, while TCM replacement can cost $500 to $1,200.
10. Can I clear code P179B without fixing the issue?
Clearing the code without addressing the root cause may temporarily turn off the check engine light, but the issue will likely return and could lead to further transmission problems.
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