P135D Code - Cooling Fan 2 Status Signals Message Counter Incorrect
Quick Answer
The diagnostic trouble code P135D indicates that the cooling fan 2 status signals message counter is incorrect. Common causes include Faulty cooling fan 2 relay, Malfunctioning cooling fan 2 motor, Wiring or connection issues in the cooling fan 2 circuit. 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 indicates Cooling Fan 2 Status Signals Message Counter Incorrect.
- Common causes
- Common causes include Faulty cooling fan 2 relay, Malfunctioning cooling fan 2 motor, Wiring or connection issues in the cooling fan 2 circuit.
- 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.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code P135D Description
The diagnostic trouble code P135D indicates that the cooling fan 2 status signals message counter is incorrect. This means that the vehicle's Engine Control Module (ECM) is not receiving the correct information from the cooling fan 2 system, which can lead to issues with engine cooling and potentially cause overheating. The cooling fan is responsible for regulating the temperature of the engine by dissipating heat generated during operation. If the ECM is not accurately receiving signals from the cooling fan 2 system, it may not be able to properly control the fan's operation, leading to potential performance issues and overheating problems.
Common Causes of P135D
- Faulty cooling fan 2 relay
- Malfunctioning cooling fan 2 motor
- Wiring or connection issues in the cooling fan 2 circuit
- ECM software or hardware issues
- Incorrect cooling fan 2 status signals being sent to the ECM
Symptoms of P135D
- Engine overheating
- Increased engine temperature gauge readings
- Reduced air conditioning performance
- Check engine light illuminated
- Reduced engine performance due to overheating protection measures
How to Fix P135D
- Inspect the cooling fan 2 relay and motor for proper operation
- Check the wiring and connections in the cooling fan 2 circuit for any damage or corrosion
- Test the ECM for any software or hardware malfunctions
- Replace the cooling fan 2 relay, motor, or any damaged wiring or connections as needed
- Clear the diagnostic trouble code from the ECM and perform a test drive to ensure the issue is resolved
Cost to Fix P135D
The typical repair costs for addressing a P135D diagnostic trouble code can vary depending on the specific cause of the issue. In general, replacing a cooling fan 2 relay or motor can cost between $100 and $300, while addressing wiring or connection issues may range from $50 to $200. Additionally, diagnostic and labor costs can add up to a total repair bill of $200 to $500. It's important to note that these are rough estimates, and actual costs can differ based on factors such as location, vehicle make and model, and labor rates. It's recommended to consult with a qualified mechanic or auto repair shop for a more accurate cost estimate.
Need more information about the P135D code?
Need more information on how to fix the P135D code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P135D code diagnosed by a professional: Find a repair shop in your area
Code P135D Information for Specific Makes
- P135D Buick — Cooling Fan 2 Status Signals Message Counter Incorrect
- P135D Cadillac — Cooling Fan 2 Status Signals Message Counter Incorrect
- P135D Chevrolet — Cooling Fan 2 Status Signals Message Counter Incorrect
- P135D GMC — Cooling Fan 2 Status Signals Message Counter Incorrect
Frequently Asked Questions about P135D Code
1. What are the common symptoms of OBDII code P135D (Cooling Fan 2 Status Signals Message Counter Incorrect)?
- Common symptoms include overheating of the engine, inconsistent operation of the cooling fan, and potential illumination of the check engine light.
2. What could be causing the OBDII code P135D to trigger?
- The code P135D may be triggered by a faulty cooling fan 2 relay, a malfunctioning cooling fan motor, damaged wiring or connectors, or a problem with the engine control module (ECM).
3. How can I diagnose the issue related to OBDII code P135D?
- To diagnose the issue, you may need to perform a visual inspection of the cooling fan 2 components, check the wiring and connectors for damage, test the cooling fan motor and relay, and scan the ECM for any related error codes.
4. Can I continue driving my vehicle with the OBDII code P135D present?
- It is not recommended to continue driving your vehicle with the code P135D present, as it can lead to potential engine overheating and other complications. It is best to address the issue promptly.
5. What are some repair tips for resolving OBDII code P135D?
- Repair tips may include replacing the cooling fan 2 relay, repairing or replacing the cooling fan motor, repairing any damaged wiring or connectors, and resetting the ECM after completing the repairs.
6. How much does it typically cost to repair OBDII code P135D?
- The cost of repairing OBDII code P135D can vary depending on the specific issue causing the code, the labor rates in your area, and the cost of parts needed for the repair. It is recommended to consult a mechanic for a more accurate estimate.
7. Can a DIY enthusiast fix OBDII code P135D, or should I seek professional help?
- While some individuals with automotive repair experience may be able to address the issue causing code P135D themselves, it is recommended to seek professional help if you are unsure about diagnosing or repairing the problem.
8. Will resetting the ECM clear OBDII code P135D, or is further action required?
- Resetting the ECM may temporarily clear the code P135D, but if the underlying issue causing the code is not addressed, it is likely to reappear. It is important to diagnose and repair the root cause of the problem.
9. Are there any preventive maintenance steps to avoid OBDII code P135D in the future?
- Performing regular inspections of the cooling fan system, checking for any signs of wear or damage, and addressing any issues promptly can help prevent the occurrence of OBDII code P135D in the future.
10. How urgent is it to address OBDII code P135D for the vehicle's overall health and performance?
- It is crucial to address OBDII code P135D promptly to prevent potential engine overheating, damage to cooling system components, and adverse effects on the vehicle's overall performance and longevity.
Discuss the causes and fixes for P135D OBDII Code
Code P135D comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.