P155D 2014 Chevrolet Silverado Code - Hill Descent Control 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
- P155D 2014 Chevrolet Silverado indicates Hill Descent Control 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 P155D 2014 Chevrolet Silverado Description
What are the Possible Causes of the DTC P155D 2014 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 P155D 2014 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 P155D 2014 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 P155D 2014 Chevrolet Silverado Code
1. What does the OBDII code P155D mean on a 2014 Chevrolet Silverado?
P155D indicates an issue with the Hill Descent Control system, specifically a message counter error that suggests a communication fault between system modules.
2. What are common symptoms of the P155D code?
Symptoms may include the Hill Descent Control warning light illuminating, the system being inoperative, or a message displayed on the dashboard.
3. What causes the P155D code to appear?
The primary causes include faulty communication between control modules, a malfunctioning Hill Descent Control module, or damaged wiring and connectors.
4. Can the P155D code affect vehicle performance?
No, it typically does not affect general vehicle performance but may disable the Hill Descent Control feature.
5. How is the P155D code diagnosed?
A technician will use a scan tool to check for related codes, inspect module communication signals, and test the wiring and connectors in the Hill Descent Control system.
6. Is it safe to drive with the P155D code active?
Yes, but the Hill Descent Control feature will not function, which could make descending steep grades more challenging.
7. What repairs can fix the P155D code?
Repairs may include reprogramming or replacing the Hill Descent Control module, repairing or replacing damaged wiring, or addressing communication issues between modules.
8. Can a dead battery cause the P155D code?
Yes, a low or dead battery can disrupt module communication and trigger this code.
9. How much does it cost to fix the P155D code?
Repair costs vary but typically range from $150 to $600, depending on whether reprogramming or component replacement is required.
10. Can I clear the P155D code without fixing the problem?
Clearing the code without addressing the issue may cause it to reappear and leave the Hill Descent Control system inoperative.
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