P135D 2016 Chevrolet Silverado Code - Cooling Fan 2 Status Signals Message Counter Incorrect
Quick Answer
The P135D diagnostic trouble code (DTC) for a 2016 Chevrolet Silverado indicates that the Cooling Fan 2 Status Signals Message Counter is incorrect. Common causes include Faulty cooling fan 2 module: A malfunctioning cooling fan 2 module can lead to communication errors with the ECM, Wiring issues: Damaged or corroded wiring connections between the ECM and the cooling fan 2 module can disrupt communication signals, ECM software glitch: An issue with the ECM software may cause incorrect message counter readings for the cooling fan 2 status signals. 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
- P135D 2016 Chevrolet Silverado indicates Cooling Fan 2 Status Signals Message Counter Incorrect.
- Common causes
- Common causes include Faulty cooling fan 2 module: A malfunctioning cooling fan 2 module can lead to communication errors with the ECM, Wiring issues: Damaged or corroded wiring connections between the ECM and the cooling fan 2 module can disrupt communication signals, ECM software glitch: An issue with the ECM software may cause incorrect message counter readings for the cooling fan 2 status signals.
- 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 P135D 2016 Chevrolet Silverado Description
The P135D diagnostic trouble code (DTC) for a 2016 Chevrolet Silverado indicates that the Cooling Fan 2 Status Signals Message Counter is incorrect. This code typically points to a communication error between the engine control module (ECM) and the cooling fan 2 module. The cooling fan system plays a crucial role in regulating the engine temperature by cooling the radiator and preventing overheating. When the ECM detects that the message counter for the cooling fan 2 status signals is incorrect, it means that the expected number of signals sent by the cooling fan 2 module does not match what the ECM is receiving. This discrepancy can lead to improper cooling fan operation, potentially causing the engine to overheat and affecting overall vehicle performance.
Common Causes of P135D 2016 Chevrolet Silverado
- Faulty cooling fan 2 module: A malfunctioning cooling fan 2 module can lead to communication errors with the ECM.
- Wiring issues: Damaged or corroded wiring connections between the ECM and the cooling fan 2 module can disrupt communication signals.
- ECM software glitch: An issue with the ECM software may cause incorrect message counter readings for the cooling fan 2 status signals.
- Cooling fan relay failure: A faulty cooling fan relay can prevent the cooling fan 2 from receiving proper signals from the ECM.
Symptoms of P135D 2016 Chevrolet Silverado
- Engine overheating: One of the most common symptoms associated with this code is engine overheating due to the cooling fan 2 not operating correctly.
- High engine temperature warning light: The vehicle's dashboard may display a warning light indicating high engine temperature.
- Reduced air conditioning performance: The air conditioning system may not cool the interior of the vehicle effectively if the cooling fan 2 is not functioning properly.
- Increased engine noise: In some cases, the engine may produce louder noises as a result of overheating.
How to Fix P135D 2016 Chevrolet Silverado
- Diagnose the issue: Use a diagnostic scanner to retrieve the specific DTC and perform a thorough inspection of the cooling fan 2 system.
- Check wiring connections: Inspect the wiring harness for any damage or corrosion, and repair or replace any faulty connections.
- Test cooling fan 2 module: Test the cooling fan 2 module to ensure it is functioning correctly and replace it if necessary.
- Update ECM software: If a software glitch is suspected, update the ECM software to the latest version to address communication errors.
- Replace cooling fan relay: If the cooling fan relay is faulty, replace it with a new one to ensure proper operation of the cooling fan 2.
Cost to Fix P135D 2016 Chevrolet Silverado
The typical repair costs for addressing the P135D code on a 2016 Chevrolet Silverado can range from $200 to $500, including parts and labor. However, the actual cost may vary depending on the specific diagnosis time and labor rates at auto repair shops. Rates can range from $80 to $150 per hour, with higher rates in metropolitan areas or at dealerships and lower rates at independent shops. It is recommended to obtain quotes from local auto repair shops for a more accurate estimate.
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Frequently Asked Questions about P135D 2016 Chevrolet Silverado Code
1. What does the OBDII code P135D mean on a 2016 Chevrolet Silverado?
P135D indicates an issue with the Cooling Fan 2 Status Signals Message Counter, meaning there’s a communication error between the engine control module (ECM) and the cooling fan system.
2. What are the common symptoms of code P135D on a 2016 Chevrolet Silverado?
Symptoms may include the cooling fan running abnormally, the engine overheating, reduced engine performance, or the check engine light turning on.
3. What causes the P135D code to appear on a 2016 Chevrolet Silverado?
Common causes include a faulty cooling fan control module, wiring or connector issues, a software glitch in the ECM, or a malfunctioning cooling fan motor.
4. Can I drive my 2016 Chevrolet Silverado with the P135D code active?
Driving with this code is not recommended, as it can lead to engine overheating and potential damage if the cooling system isn’t functioning properly.
5. How do I diagnose the P135D code on my 2016 Chevrolet Silverado?
Start by inspecting the wiring and connectors for damage or corrosion, checking the cooling fan control module, and scanning the system for additional related codes to identify possible faults.
6. How do I fix the P135D code on a 2016 Chevrolet Silverado?
Repairs may involve replacing a faulty cooling fan control module, repairing damaged wiring, updating the ECM software, or replacing the cooling fan motor if it’s defective.
7. Is the P135D code related to the cooling fan not running on my Silverado?
Yes, this code can be associated with the cooling fan not operating correctly due to communication errors or a control module issue.
8. Will clearing the P135D code fix the problem on my Silverado?
Clearing the code may turn off the check engine light temporarily, but it won’t resolve the underlying issue causing the code to appear.
9. How much does it cost to repair the P135D code on a 2016 Chevrolet Silverado?
Repair costs can vary, but replacing a cooling fan control module may cost between $200 and $600, including parts and labor, depending on the extent of the issue.
10. Can a software update resolve the P135D code on my Silverado?
In some cases, a software update to the ECM can resolve communication errors and fix the P135D code, but this depends on the exact cause of the issue.
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