P135D GMC 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 GMC 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 GMC Description
What are the Possible Causes of the DTC P135D GMC?
- 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 GMC?
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 GMC 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 GMC Models
- P135D 2014 GMC Sierra — Cooling Fan 2 Status Signals Message Counter Incorrect
- P135D 2015 GMC Sierra — Cooling Fan 2 Status Signals Message Counter Incorrect
- P135D 2016 GMC Sierra — Cooling Fan 2 Status Signals Message Counter Incorrect
- P135D 2017 GMC Sierra — Cooling Fan 2 Status Signals Message Counter Incorrect
- P135D 2018 GMC Sierra — Cooling Fan 2 Status Signals Message Counter Incorrect
Frequently Asked Questions about P135D GMC Code
1. What are the common symptoms of OBDII code P135D GMC (Cooling Fan 2 Status Signals Message Counter Incorrect)?
The common symptoms of this code may include an illuminated check engine light, poor engine performance, and overheating.
2. What are the possible causes of OBDII code P135D GMC?
Possible causes of this code include a faulty cooling fan 2, a defective coolant temperature sensor, 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 GMC?
Diagnosing this issue typically involves using an OBDII scanner to retrieve the code and then performing a visual inspection of the cooling fan 2, coolant temperature sensor, and related wiring. Testing the components for proper functionality is also recommended.
4. What are the repair options for OBDII code P135D GMC?
Repair options for this code may include replacing the cooling fan 2, repairing or replacing the coolant temperature sensor, fixing damaged wiring or connectors, and reprogramming or replacing the engine control module (ECM) if necessary.
5. Can driving with OBDII code P135D GMC cause further damage to the vehicle?
Continuing to drive with this code present can potentially lead to engine overheating and damage, so it is advisable to address the issue promptly to avoid more severe problems.
6. How can I prevent OBDII code P135D GMC from occurring in the future?
Regular maintenance of the cooling system, including checking the cooling fan operation and coolant level, can help prevent issues that may trigger this code. Promptly addressing any cooling system problems can also help avoid this code in the future.
7. Is it safe to drive my vehicle with OBDII code P135D GMC if the engine is not overheating?
While it may be safe to drive for a short distance if the engine is not overheating, it is recommended to address the issue as soon as possible to prevent potential damage to the engine or other components.
8. How much does it typically cost to repair OBDII code P135D GMC?
The cost of repairing this code can vary depending on the specific cause of the issue, the parts needed for repair, and labor costs. It is advisable to consult with a mechanic for an accurate estimate.
9. Can I reset OBDII code P135D GMC by disconnecting the battery?
While disconnecting the battery may clear the code temporarily, it is not a recommended method for resolving the underlying issue. It is best to diagnose the problem and address it directly to prevent the code from reoccurring.
10. Will OBDII code P135D GMC prevent my vehicle from passing emissions testing?
Yes, if this code triggers the check engine light, it may cause your vehicle to fail emissions testing. It is important to address the issue and clear the code before undergoing emissions testing.
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