P135C Code - Cooling Fan 1 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 1, Cooling Fan 1 harness is open or shorted, Cooling Fan 1 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
- P135C indicates Cooling Fan 1 Status Signals Message Counter Incorrect.
- Common causes
- Common causes include Faulty Cooling Fan 1, Cooling Fan 1 harness is open or shorted, Cooling Fan 1 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 P135C Description
What are the Possible Causes of the DTC P135C?
- Faulty Cooling Fan 1
- Cooling Fan 1 harness is open or shorted
- Cooling Fan 1 circuit poor electrical connection
How to Fix the DTC P135C?
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 P135C 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
- P135C Buick — Cooling Fan 1 Status Signals Message Counter Incorrect
- P135C Cadillac — Cooling Fan 1 Status Signals Message Counter Incorrect
- P135C Chevrolet — Cooling Fan 1 Status Signals Message Counter Incorrect
- P135C GMC — Cooling Fan 1 Status Signals Message Counter Incorrect
Frequently Asked Questions about P135C Code
1. What are the common symptoms of OBDII code P135C?
The common symptoms associated with code P135C include the cooling fan not operating properly, engine overheating, and the Check Engine light illuminating on the dashboard.
2. What are the possible causes of OBDII code P135C?
The possible causes of code P135C include a faulty cooling fan, issues with the cooling fan relay, wiring problems, or a malfunctioning Engine Control Module (ECM).
3. How can I diagnose the root cause of OBDII code P135C?
Diagnosing code P135C involves checking the cooling fan operation, inspecting the relay and wiring connections, and using a scan tool to retrieve any additional error codes or data from the ECM related to the cooling fan system.
4. Can I continue driving my vehicle with OBDII code P135C?
It is not recommended to drive your vehicle with OBDII code P135C, especially if you are experiencing symptoms like engine overheating. Continuing to drive may lead to further damage to the engine components.
5. How can I repair OBDII code P135C?
To repair code P135C, you may need to replace the faulty cooling fan, repair or replace the cooling fan relay, fix any wiring issues, or reprogram the ECM if necessary. It is recommended to consult a professional mechanic for an accurate diagnosis and repair.
6. Will resetting the Check Engine light resolve OBDII code P135C?
Simply resetting the Check Engine light will not fix the underlying issue causing code P135C. It is essential to diagnose and address the root cause of the problem to prevent further complications.
7. Can a DIY enthusiast fix OBDII code P135C at home?
Depending on your skill level and access to tools, some DIY enthusiasts may be able to address code P135C by replacing the cooling fan, checking and repairing wiring connections, or swapping out the cooling fan relay. However, if in doubt, it is best to seek professional help.
8. Why is it important to address OBDII code P135C promptly?
It is crucial to address code P135C promptly to prevent engine overheating, potential damage to engine components, and to ensure the proper functioning of the vehicle's cooling system. Ignoring the issue can lead to more severe problems down the line.
9. Are there any preventative measures to avoid OBDII code P135C in the future?
To prevent OBDII code P135C in the future, it is recommended to perform regular maintenance on the cooling system, inspect the cooling fan operation periodically, and address any cooling system issues promptly to avoid potential failures.
10. How much does it typically cost to repair OBDII code P135C?
The cost of repairing OBDII code P135C can vary depending on the root cause of the issue, the parts needed for replacement, labor costs, and whether you choose to go to a dealership or an independent mechanic. It is advisable to obtain multiple quotes for an accurate estimate.
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