P135F GMC Code - Cooling Fan 4 Status Signals Message Counter Incorrect
Quick Answer
The P135F diagnostic trouble code for GMC vehicles indicates that the Cooling Fan 4 Status Signals Message Counter is incorrect. Common causes include Faulty cooling fan relay: A malfunctioning relay can prevent the cooling fan from receiving the necessary signals to operate correctly, Defective cooling fan motor: A faulty cooling fan motor may not spin at the required speed to cool the engine effectively, Wiring issues: Damaged or corroded wiring can disrupt the communication between the ECM and the cooling fan system. 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
- P135F GMC indicates Cooling Fan 4 Status Signals Message Counter Incorrect.
- Common causes
- Common causes include Faulty cooling fan relay: A malfunctioning relay can prevent the cooling fan from receiving the necessary signals to operate correctly, Defective cooling fan motor: A faulty cooling fan motor may not spin at the required speed to cool the engine effectively, Wiring issues: Damaged or corroded wiring can disrupt the communication between the ECM and the cooling fan system.
- 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 P135F GMC Description
The P135F diagnostic trouble code for GMC vehicles indicates that the Cooling Fan 4 Status Signals Message Counter is incorrect. In modern vehicles, the cooling fan plays a crucial role in maintaining the engine's optimal operating temperature. The cooling fan is responsible for dissipating heat generated by the engine and preventing it from overheating. When the ECM (Engine Control Module) detects that the cooling fan 4 status signals message counter is incorrect, it means that there is a discrepancy in the signals being sent by the cooling fan system.
Common Causes of P135F GMC
- Faulty cooling fan relay: A malfunctioning relay can prevent the cooling fan from receiving the necessary signals to operate correctly.
- Defective cooling fan motor: A faulty cooling fan motor may not spin at the required speed to cool the engine effectively.
- Wiring issues: Damaged or corroded wiring can disrupt the communication between the ECM and the cooling fan system.
- ECM malfunction: A problem with the Engine Control Module can lead to incorrect status signals being sent to the cooling fan.
Symptoms of P135F GMC
- Engine overheating: One of the most common symptoms associated with this code is the engine overheating due to the cooling fan not operating correctly.
- Check Engine Light: The Check Engine Light may illuminate on the dashboard as a result of the incorrect status signals message counter.
- Reduced engine performance: If the engine is overheating, it may lead to reduced performance as the engine struggles to operate at its optimal temperature.
- Unusual noise from the engine bay: A malfunctioning cooling fan or relay may produce unusual noises, such as grinding or whirring sounds.
How to Fix P135F GMC
- Diagnose the issue: Use a diagnostic tool to retrieve the specific error codes and pinpoint the exact cause of the problem.
- Inspect the cooling fan relay: Check the relay for any signs of damage or malfunction and replace it if necessary.
- Test the cooling fan motor: Verify that the cooling fan motor is operating correctly and replace it if it is faulty.
- Check the wiring: Inspect the wiring harness for any damage or corrosion and repair or replace any affected wires.
- Reset the ECM: Clear the error codes and reset the ECM to ensure that the correct signals are being sent to the cooling fan system.
Cost to Fix P135F GMC
The cost of repairing a P135F code for a GMC vehicle can vary depending on the specific cause of the issue and the extent of the repairs needed. On average, the repair costs for this issue can range from $200 to $500, including parts and labor. However, it is essential to note that the actual cost may be higher or lower based on factors such as the location of the repair shop, the vehicle's make and model, and the type of engine. Additionally, the diagnosis time and labor rates at auto repair shops can vary, with rates typically ranging between $80 and $150 per hour. It is advisable to consult with a qualified mechanic or repair shop to obtain a more accurate estimate for addressing the P135F code on a GMC vehicle.
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Information for Specific GMC Models
- P135F 2014 GMC Sierra — Cooling Fan 4 Status Signals Message Counter Incorrect
- P135F 2015 GMC Sierra — Cooling Fan 4 Status Signals Message Counter Incorrect
- P135F 2016 GMC Sierra — Cooling Fan 4 Status Signals Message Counter Incorrect
- P135F 2017 GMC Sierra — Cooling Fan 4 Status Signals Message Counter Incorrect
- P135F 2018 GMC Sierra — Cooling Fan 4 Status Signals Message Counter Incorrect
Frequently Asked Questions about P135F GMC Code
1. What are the common symptoms of OBDII code P135F (GMC)?
- Common symptoms include the cooling fan not functioning properly, the engine overheating, and an illuminated Check Engine Light.
2. What causes the OBDII code P135F (GMC) to trigger?
- The code P135F is typically triggered when the Cooling Fan 4 Status Signals Message Counter is deemed incorrect by the vehicle's computer system.
3. How can I diagnose the issue related to code P135F (GMC)?
- Diagnosis involves checking the cooling fan operation, inspecting the fan wiring and connectors, and using a scan tool to retrieve and analyze the specific fault codes present.
4. Can a faulty cooling fan relay cause code P135F (GMC) to appear?
- Yes, a faulty cooling fan relay can contribute to the triggering of code P135F, as it can disrupt the proper functioning of the cooling fan system.
5. What are some repair tips for addressing OBDII code P135F (GMC)?
- Repair tips include checking and repairing any damaged wiring or connectors, replacing a faulty cooling fan relay, and ensuring the cooling fan operates smoothly.
6. Is it safe to continue driving with OBDII code P135F (GMC) present?
- It is not recommended to continue driving with code P135F present, as it can lead to engine overheating and potential damage if the cooling fan system is not functioning correctly.
7. Can resetting the fault codes clear OBDII code P135F (GMC)?
- Resetting the fault codes may temporarily clear the code P135F, but it is essential to diagnose and address the underlying issue causing the code to prevent it from reoccurring.
8. Can a DIY enthusiast address OBDII code P135F (GMC) repair?
- Depending on the individual's mechanical skills and knowledge, a DIY enthusiast may be able to address code P135F by following repair guides and using the necessary tools.
9. How much does it typically cost to repair OBDII code P135F (GMC) at a professional auto repair shop?
- The cost of repairing code P135F can vary based on the extent of the issue, but it may range from $100 to $300 or more, including parts and labor.
10. Is OBDII code P135F (GMC) a common issue in certain GMC vehicle models?
- Code P135F related to the Cooling Fan 4 Status Signals Message Counter is more commonly seen in specific GMC models with cooling fan system configurations that may be prone to malfunctions.
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