P135D Code - Cooling Fan 2 Status Signals Message Counter Incorrect
Quick Answer
Control modules connected to the serial data circuits monitor the communication during normal vehicle operation. Common causes include Faulty Cooling Fan 2, Cooling Fan 2 harness is open or shorted, Cooling Fan 2 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
- P135D indicates Cooling Fan 2 Status Signals Message Counter Incorrect.
- Common causes
- Common causes include Faulty Cooling Fan 2, Cooling Fan 2 harness is open or shorted, Cooling Fan 2 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 P135D Description
What are the Possible Causes of the DTC P135D?
- Faulty Cooling Fan 2
- Cooling Fan 2 harness is open or shorted
- Cooling Fan 2 circuit poor electrical connection
How to Fix the DTC P135D?
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 P135D 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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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.
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