P135E 2014 GMC Sierra Code - Cooling Fan 3 Status Signals Message Counter Incorrect
Quick Answer
The P135E diagnostic trouble code (DTC) for a 2014 GMC Sierra indicates that the Cooling Fan 3 Status Signals Message Counter is incorrect. Common causes include Faulty cooling fan: The most common cause of this code is a malfunctioning cooling fan, The fan may have failed or is not receiving the proper signals to operate, Wiring issues: Damaged or corroded wiring connections between the cooling fan and the ECM can disrupt the signals being sent, triggering this code. 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
- P135E 2014 GMC Sierra indicates Cooling Fan 3 Status Signals Message Counter Incorrect.
- Common causes
- Common causes include Faulty cooling fan: The most common cause of this code is a malfunctioning cooling fan, The fan may have failed or is not receiving the proper signals to operate, Wiring issues: Damaged or corroded wiring connections between the cooling fan and the ECM can disrupt the signals being sent, triggering this code.
- 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 P135E 2014 GMC Sierra Description
The P135E diagnostic trouble code (DTC) for a 2014 GMC Sierra indicates that the Cooling Fan 3 Status Signals Message Counter is incorrect. This code is typically associated with a malfunction in the cooling fan system, specifically with the signals being sent to the engine control module (ECM) from the cooling fan. The cooling fan is a critical component of the vehicle's cooling system, responsible for maintaining optimal engine temperature by dissipating heat generated during operation.
Common Causes of P135E 2014 GMC Sierra
- Faulty cooling fan: The most common cause of this code is a malfunctioning cooling fan. The fan may have failed or is not receiving the proper signals to operate.
- Wiring issues: Damaged or corroded wiring connections between the cooling fan and the ECM can disrupt the signals being sent, triggering this code.
- ECM malfunction: In some cases, the issue may lie with the ECM itself, which may not be accurately interpreting the signals from the cooling fan.
- Cooling fan relay failure: A faulty cooling fan relay can also prevent the fan from operating correctly, leading to this code.
Symptoms of P135E 2014 GMC Sierra
- Engine overheating: One of the most common symptoms associated with this code is engine overheating. If the cooling fan is not functioning properly, the engine may not receive adequate cooling, leading to overheating.
- High engine temperature gauge readings: The temperature gauge on the dashboard may show higher than normal temperatures if the cooling fan is not operating correctly.
- Reduced air conditioning performance: The cooling fan also helps cool the air conditioning condenser. If the fan is not working, the air conditioning performance may be reduced.
- Check engine light: The P135E code will trigger the check engine light to illuminate on the dashboard, indicating a problem with the cooling fan system.
How to Fix P135E 2014 GMC Sierra
- Diagnose the issue: Begin by using a scan tool to retrieve the DTC and identify the specific cause of the problem. Check the cooling fan operation and wiring connections.
- Test the cooling fan: Verify if the cooling fan is receiving power and ground signals when the engine temperature rises. Replace the cooling fan if it is not functioning properly.
- Inspect wiring connections: Check for any damaged or corroded wiring connections between the cooling fan and the ECM. Repair or replace any faulty wiring.
- Check the cooling fan relay: Test the cooling fan relay to ensure it is functioning correctly. Replace the relay if necessary.
- Clear the DTC: After completing the repairs, clear the DTC using a scan tool to reset the check engine light and monitor the system for any recurring issues.
Cost to Fix P135E 2014 GMC Sierra
The cost of repairing a P135E code on a 2014 GMC Sierra can vary depending on the specific cause of the issue. In general, the cost of replacing a cooling fan can range from $200 to $500, including parts and labor. Wiring repairs or ECM replacement may incur additional costs. It's important to note that diagnostic time and labor rates at auto repair shops can vary, with hourly rates typically ranging from $80 to $150. Factors such as location, vehicle make and model, and engine type can also influence repair costs. For a more accurate estimate, it's recommended to consult with a local auto repair shop.
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Frequently Asked Questions about P135E 2014 GMC Sierra Code
1. What does the OBDII code P135E mean for a 2014 GMC Sierra?
P135E indicates an issue with the Cooling Fan 3 Status Signals Message Counter being incorrect, meaning the engine control module (ECM) is not receiving proper communication from the cooling fan system.
2. What are the symptoms of the P135E code on a 2014 GMC Sierra?
Common symptoms include the cooling fan not operating properly, engine overheating, and possible illumination of the check engine light.
3. What causes the P135E code on a 2014 GMC Sierra?
The code is typically caused by a faulty cooling fan module, wiring issues, poor connections, or a software glitch in the ECM.
4. Can I drive my 2014 GMC Sierra with the P135E code?
Driving with this code is not recommended, as the cooling fan may not function properly, potentially leading to engine overheating and serious damage.
5. How is the P135E code diagnosed?
A mechanic will inspect the cooling fan system, check the wiring and connectors for damage, and use a scan tool to monitor the communication between the ECM and the fan control module.
6. How do I fix the P135E code on my 2014 GMC Sierra?
Repairs may include replacing the cooling fan control module, repairing or replacing damaged wiring, or updating the ECM software if needed.
7. How much does it cost to repair the P135E code on a 2014 GMC Sierra?
Repair costs vary depending on the specific issue but typically range from $200 to $600, including parts and labor.
8. Can a software update fix the P135E code?
Yes, in some cases, a software update for the ECM may resolve the issue if the problem is related to a communication error rather than a hardware fault.
9. Will clearing the P135E code solve the problem?
Clearing the code may temporarily turn off the check engine light, but the underlying issue must be addressed to prevent the code from returning.
10. How can I prevent the P135E code from recurring?
Ensure regular maintenance, inspect the cooling fan system for wear, and address any electrical issues promptly to prevent recurrence of the code.
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