P135D 2017 GMC Sierra 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 2017 GMC Sierra 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 2017 GMC Sierra Description
What are the Possible Causes of the DTC P135D 2017 GMC Sierra?
- 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 2017 GMC Sierra?
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 2017 GMC Sierra 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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Frequently Asked Questions about P135D 2017 GMC Sierra Code
1. What does the OBDII code P135D mean for a 2017 GMC Sierra?
It indicates the cooling fan 2 status signals message counter is incorrect, meaning there is an issue with the communication or operation of the secondary cooling fan.
2. What are the common symptoms of code P135D in a 2017 GMC Sierra?
Symptoms may include engine overheating, abnormal fan operation, or the cooling fan failing to activate when needed.
3. What causes the P135D code to appear in a 2017 GMC Sierra?
Causes can include a faulty cooling fan 2 module, wiring issues, communication errors between the fan and the ECM, or a malfunctioning ECM.
4. Can driving with code P135D cause damage to my 2017 GMC Sierra?
Yes, prolonged driving with this code can lead to engine overheating, which may result in serious engine damage.
5. How do I diagnose the P135D code on a 2017 GMC Sierra?
Use an OBDII scanner to confirm the code, inspect the wiring and connectors for damage, and test the cooling fan 2 module for proper operation.
6. What repairs can fix the P135D code on a 2017 GMC Sierra?
Repairs may include replacing the cooling fan 2 module, repairing damaged wiring, or reprogramming or replacing the ECM if necessary.
7. Is the P135D code related to other cooling system issues in the 2017 GMC Sierra?
It can be related to other cooling system faults, such as a failing primary fan or temperature sensor issues, but specifically involves cooling fan 2 communication.
8. How much does it cost to repair code P135D in a 2017 GMC Sierra?
Repair costs vary depending on the issue, but replacing a cooling fan module can cost $200–$500, while ECM repairs could exceed $1,000.
9. Can I reset the P135D code without fixing the problem in my 2017 GMC Sierra?
Resetting the code without addressing the underlying issue may temporarily clear it but won’t resolve the problem, and the code will likely return.
10. What tools are needed to fix the P135D code on a 2017 GMC Sierra?
Tools may include an OBDII scanner, multimeter for electrical testing, and basic hand tools for replacing components or repairing wiring.
Discuss the causes and fixes for P135D 2017 GMC Sierra OBDII Code
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