P179B Cadillac Code - Transmission Range State Command Signal Message Counter Incorrect
Quick Answer
Control modules connected to the serial data circuits monitor the communication during normal vehicle operation. 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
- P179B Cadillac indicates Transmission Range State Command 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 P179B Cadillac Description
What are the Possible Causes of the DTC P179B Cadillac?
- 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 P179B Cadillac?
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 P179B Cadillac 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 P179B Cadillac Code
1. What are the common symptoms of OBDII code P179B in a Cadillac?
- Common symptoms include issues with shifting gears, transmission slipping, poor acceleration, and the vehicle going into limp mode.
2. What can cause the OBDII code P179B in a Cadillac?
- The code P179B is often caused by a malfunction in the transmission range state command signal message counter, indicating a communication error between the transmission control module and other vehicle systems.
3. How serious is the OBDII code P179B in a Cadillac?
- The P179B code can lead to potential transmission issues and should be addressed promptly to prevent further damage to the transmission system.
4. Can I continue driving my Cadillac with the OBDII code P179B?
- It is not recommended to continue driving the vehicle with the P179B code present, as it may cause further damage to the transmission and affect the overall performance of the vehicle.
5. How can I diagnose the OBDII code P179B in my Cadillac?
- Diagnosing the P179B code requires using a diagnostic scan tool to retrieve the code, checking for any related trouble codes, and performing a thorough inspection of the transmission system.
6. What are the repair options for fixing the OBDII code P179B in a Cadillac?
- Repair options may include checking and repairing any damaged wiring or connectors related to the transmission range state command signal, reprogramming the transmission control module, or replacing faulty components.
7. Can I reset the OBDII code P179B in my Cadillac by disconnecting the battery?
- Disconnecting the battery may clear the code temporarily, but it is not a recommended long-term solution. The underlying issue causing the code should be properly diagnosed and repaired.
8. How much does it cost to fix the OBDII code P179B in a Cadillac?
- The cost of fixing the P179B code can vary depending on the specific cause of the issue, labor costs, and the price of any necessary replacement parts. It is best to consult a professional mechanic for an accurate estimate.
9. Are there any preventative maintenance tips to avoid the OBDII code P179B in a Cadillac?
- To help prevent the P179B code, it is important to perform regular maintenance on the transmission system, including fluid checks and changes, and addressing any issues promptly to avoid potential damage.
10. Can the OBDII code P179B in a Cadillac be a recurring issue?
- If the root cause of the P179B code is not properly addressed during repair, it is possible for the code to reoccur. It is essential to ensure that all related components are thoroughly inspected and repaired to prevent future occurrences.
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