When it comes to Jeep vehicles, the code P0671 can be a cause of great concern. This code is a trouble code that indicates a cylinder 1 glow plug circuit is open. The glow plug module is located adjacent to the passenger side shock tower and receives a 12-volt supply from the power distribution center (PDC). The module provides power to the glow plugs and a ground path is provided through the body of the glow plugs. Malfunctions in the glow plug module, the glow plug, or the fused B+ circuit can all lead to the code P0671. To address this issue, service bulletins from the National Highway Traffic Safety Administration have been issued, such as S2108000165 and S2108000165 Rev. A. In the table below, you will find causes and solutions for the Jeep code P0671.
Causes and Solutions for Jeep Code P0671
| Cause | Solution |
|---|---|
| GLOW PLUG CONTROL CIRCUIT OPEN/HIGH RESISTANCE | Check the wiring and connectors for any signs of corrosion or damage and repair or replace as necessary. |
| FUSED B+ CIRCUIT OPEN/HIGH RESISTANCE | Check the fuse and wiring for any signs of corrosion or damage and repair or replace as necessary. |
| GLOW PLUG | Replace the glow plug with a new one. |
| GLOW PLUG MODULE | Replace the glow plug module with a new one. |
When troubleshooting Jeep code P0671, it’s important to remember that this code indicates a cylinder 1 glow plug circuit is open. The glow plug module is located adjacent to the passenger side shock tower and provides power to the glow plugs. A malfunction in the glow plug module, the glow plug, or the fused B+ circuit can all lead to the code P0671. While this code can be a cause of great concern, service bulletins from the National Highway Traffic Safety Administration have been issued to help address the issue. Knowing the potential causes and available solutions can help to ensure that the code is resolved quickly and efficiently.
Check the Wiring and Connectors
When troubleshooting Jeep code P0671, the first step should be to check the wiring and connectors for any signs of corrosion or damage. If any corrosion or damage is present, the wiring and connectors should be repaired or replaced as necessary.
Check the Fuse and Wiring
The second step in troubleshooting Jeep code P0671 is to check the fuse and wiring for any signs of corrosion or damage. If the fuse is damaged or the wiring is corroded, the fuse and wiring should be repaired or replaced as necessary.
Replace the Glow Plug or Glow Plug Module
The third step in troubleshooting Jeep code P0671 is to replace the glow plug or glow plug module. If the glow plug or glow plug module is malfunctioning, it should be replaced with a new one.
Conclusion
Jeep code P0671 is a trouble code that indicates a cylinder 1 glow plug circuit is open. The glow plug module provides power to the glow plugs and a ground path is provided through the body of the glow plugs. Malfunctions in the glow plug module, the glow plug, or the fused B+ circuit can all lead to the code P0671. Knowing the potential causes and available solutions can help to ensure that the issue is resolved quickly and efficiently. Service bulletins from the National Highway Traffic Safety Administration have been issued to help address the Jeep Code P0671. With the right approach and knowledge, the code can be resolved without too much difficulty.
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