P135C Cadillac Code - Cooling Fan 1 Status Signals Message Counter Incorrect
Quick Answer
The P135C diagnostic trouble code for Cadillac vehicles indicates that the Cooling Fan 1 Status Signals Message Counter is Incorrect. Common causes include Faulty cooling fan, Malfunctioning temperature sensor, Wiring or electrical issues. 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 Cadillac indicates Cooling Fan 1 Status Signals Message Counter Incorrect.
- Common causes
- Common causes include Faulty cooling fan, Malfunctioning temperature sensor, Wiring or electrical issues.
- 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 P135C Cadillac Description
The P135C diagnostic trouble code for Cadillac vehicles indicates that the Cooling Fan 1 Status Signals Message Counter is Incorrect. This code is related to the cooling system of the vehicle, specifically the cooling fan that helps regulate engine temperature. When this code appears, it means that the signals being received from the cooling fan are not matching the expected values, which can lead to overheating issues and potential engine damage if not addressed.
Common Causes of P135C Cadillac
- Faulty cooling fan
- Malfunctioning temperature sensor
- Wiring or electrical issues
- ECM (Engine Control Module) malfunction
- Poor connections or corrosion in the cooling fan circuit
Symptoms of P135C Cadillac
- Engine overheating
- Reduced engine performance
- Illumination of the check engine light
- Cooling fan not turning on when the engine reaches operating temperature
- Temperature gauge showing unusually high readings
How to Fix P135C Cadillac
- Diagnose the issue using a scan tool to verify the code and check the cooling fan operation.
- Inspect the cooling fan, temperature sensor, and wiring for any visible signs of damage or corrosion.
- Test the cooling fan relay and replace if necessary.
- Reset the fault codes and test the vehicle to ensure the issue has been resolved.
- If the problem persists, consult a professional technician for further diagnosis and repair.
Cost to Fix P135C Cadillac
The cost of repairing a P135C Cadillac code related to the Cooling Fan 1 Status Signals Message Counter Incorrect can vary depending on the specific cause of the issue. In general, the repair costs can range from $100 to $500, including parts and labor. However, it's important to note that diagnosis time and labor rates at auto repair shops can vary, so it's advisable to check with local shops for a more accurate estimate. Keep in mind that rates may be higher at dealerships or in metropolitan areas, while independent shops may offer more competitive prices.
Need more information about the P135C Cadillac code?
Need more information on how to fix the P135C Cadillac code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P135C Cadillac code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P135C Cadillac Code
1. What does the OBDII code P135C mean on a Cadillac?
P135C indicates an issue with the Cooling Fan 1 Status Signals Message Counter, suggesting a communication error between the cooling fan module and the engine control module (ECM).
2. What are the common symptoms of code P135C on a Cadillac?
Symptoms may include the cooling fan not operating properly, engine overheating, reduced A/C performance, or the check engine light illuminating.
3. What causes the P135C code to appear on a Cadillac?
Common causes include a faulty cooling fan control module, wiring or connector issues in the fan circuit, or a malfunctioning engine control module (ECM).
4. How do I fix the P135C code on my Cadillac?
Repairs may involve inspecting and repairing wiring or connectors, replacing the cooling fan control module, or updating/reprogramming the ECM if necessary.
5. Can I drive my Cadillac with the P135C code active?
Driving with this code is not recommended, as it could lead to engine overheating and potential damage if the cooling fan fails to operate.
6. How can I diagnose the P135C code on a Cadillac?
Diagnosis involves scanning the vehicle with an OBDII scanner, inspecting the cooling fan circuit for damage, and testing the cooling fan control module for proper operation.
7. Is code P135C specific to Cadillacs?
While the code may appear on other vehicles, the specific description and troubleshooting steps for P135C are tailored to Cadillac models.
8. How much does it cost to repair the P135C code on a Cadillac?
Repair costs vary, but replacing a cooling fan control module typically ranges from $200 to $400, excluding labor costs for diagnostic and repair time.
9. Can a blown fuse cause the P135C code on a Cadillac?
Yes, a blown fuse in the cooling fan circuit can interrupt communication and trigger the P135C code.
10. Will resetting the check engine light clear the P135C code on my Cadillac?
Resetting the check engine light may temporarily clear the code, but it will return if the underlying issue is not addressed and repaired.
Discuss the causes and fixes for P135C Cadillac OBDII Code
Code P135C Cadillac 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.