Connecting your Jeep to your iOS device via a Bluetooth OBDII adapter opens up a world of customization options. However, using apps like Jscan to modify settings, such as tire size or Daytime Running Lights (DRLs), can sometimes lead to unexpected issues. This article discusses common problems encountered when using Jscan with a Jeep Patriot, specifically focusing on tire size changes and DRL adjustments, and offers potential solutions.
Jscan and Jeep Patriot Compatibility Issues
Modifying tire size or DRL settings in a Jeep Patriot using the Jscan app can trigger error codes and even cause the vehicle to enter “limp mode,” a reduced functionality state designed to prevent further damage. One user reported experiencing a P0610 TRANS CONTROL code after making these changes, forcing the vehicle into limp mode. Resolving the issue required disconnecting the battery, draining the remaining electrical charge, and then reconnecting the battery to reset the vehicle’s computer. Even after this process, several high beam-related error codes (B1634, B1630, and B1638) remained.
The Jscan developer confirmed compatibility issues with the Jeep Patriot when adjusting tire size. While the vehicle continued to operate after clearing the initial error codes, minor speedometer inaccuracies and unintended high beam activation when switching to low beams persisted. Attempts to modify other settings, such as enabling HID headlights, also resulted in similar error codes and limp mode. The user suspects the vehicle’s computer detects changes in the headlight circuitry due to the use of relays for the aftermarket HID projector setup.
Exploring Alternative Diagnostic Apps
Given the challenges encountered with Jscan, exploring alternative diagnostic apps becomes crucial. Apps like Appcar DiagFCA might offer better compatibility with the Jeep Patriot for tire size and DRL modifications. However, it’s essential to research and confirm compatibility before making any adjustments. User forums and online communities dedicated to Jeep owners can provide valuable insights and experiences with different diagnostic apps.
Conclusion
While Bluetooth OBDII adapters and apps like Jscan offer convenient customization options for Jeep vehicles, compatibility issues can arise. When modifying tire size or DRL settings on a Jeep Patriot, exercise caution and be prepared for potential error codes and the need for troubleshooting. Consider exploring alternative diagnostic apps that may offer better compatibility and consult with Jeep communities or experienced mechanics for guidance to avoid unexpected problems. Always back up your vehicle’s settings before making any changes.
