As a car expert, I understand how frustrating it can be when your car starts acting up. One common issue that many car owners face is the P1871 Transmission Transfer Case System Concern – Servicing Required error message. This error message can be caused by a variety of issues, including a faulty transfer case control module or a damaged wiring harness. In this article, I will provide you with a step-by-step guide on how to fix this issue and get your car back on the road.
Step 1: Check the Wiring Harness
The first step in fixing the P1871 error message is to check the wiring harness. The wiring harness is responsible for transmitting electrical signals between the transfer case control module and the transfer case motor. If the wiring harness is damaged or corroded, it can cause the transfer case to malfunction and trigger the P1871 error message.
To check the wiring harness, start by disconnecting the negative battery cable. Then, locate the wiring harness that connects the transfer case control module to the transfer case motor. Inspect the wiring harness for any signs of damage or corrosion. If you notice any damage, replace the wiring harness with a new one.
Step 2: Check the Transfer Case Control Module
If the wiring harness is not the issue, the next step is to check the transfer case control module. The transfer case control module is responsible for controlling the transfer case motor and ensuring that it operates correctly. If the transfer case control module is faulty, it can cause the transfer case to malfunction and trigger the P1871 error message.
To check the transfer case control module, start by disconnecting the negative battery cable. Then, locate the transfer case control module and inspect it for any signs of damage or corrosion. If you notice any damage, replace the transfer case control module with a new one.
Step 3: Check the Transfer Case Motor
If the wiring harness and transfer case control module are not the issue, the next step is to check the transfer case motor. The transfer case motor is responsible for engaging and disengaging the transfer case. If the transfer case motor is faulty, it can cause the transfer case to malfunction and trigger the P1871 error message.
To check the transfer case motor, start by disconnecting the negative battery cable. Then, locate the transfer case motor and inspect it for any signs of damage or corrosion. If you notice any damage, replace the transfer case motor with a new one.
Step 4: Clear the Error Message
Once you have fixed the issue that was causing the P1871 error message, the next step is to clear the error message. To do this, start by reconnecting the negative battery cable. Then, turn on the ignition and wait for the error message to appear. Once the error message appears, use a scan tool to clear the error message.
Conclusion
Fixing the P1871 Transmission Transfer Case System Concern – Servicing Required error message can be a daunting task, but with the right tools and knowledge, it can be done. By following the steps outlined in this article, you can diagnose and fix the issue that is causing the error message and get your car back on the road.
FAQs
1. What causes the P1871 error message?
The P1871 error message can be caused by a variety of issues, including a faulty transfer case control module or a damaged wiring harness.
2. Can I fix the P1871 error message myself?
Yes, you can fix the P1871 error message yourself if you have the right tools and knowledge. However, if you are not comfortable working on your car, it is best to take it to a professional mechanic.
3. How do I prevent the P1871 error message from occurring again?
To prevent the P1871 error message from occurring again, it is important to maintain your car regularly and address any issues as soon as they arise. Regularly checking the wiring harness, transfer case control module, and transfer case motor can also help prevent the error message from occurring.
