Jeep U1414-87 Code

When a Jeep is experiencing the U1414-87 code, it is due to the Body Control Module (BCM) not receiving LIN Bus 1 messages from the Light Rain Sensing Module (LRSM) for longer than three seconds. The cause of the Jeep U1414-87 code can be attributed to a variety of issues, including a FUSED IGNITION RUN/START CIRCUIT being open or shorted to ground, a GROUND CIRCUIT being open, a LIN BUS 1 CIRCUIT being open, or a problem with the LRSM or BCM. This type of failure is classified as a Missing Message, where one or more expected messages are not received due to unforeseen reset events or the repetition time being too high.

Causes and Solutions for the Jeep U1414-87 Code

Cause Solution
FUSED IGNITION RUN/START CIRCUIT OPEN OR SHORTED TO GROUND Check the fuse in the circuit and replace if necessary.
GROUND CIRCUIT OPEN Check the ground wire for continuity and repair if needed.
LIN BUS 1 CIRCUIT OPEN Check the LIN Bus 1 circuit for an open connection and repair it.
LIGHT RAIN SENSING MODULE (LRSM) OR BODY CONTROL MODULE (BCM) Check the LRSM and BCM for any signs of damage and replace if needed.

The Jeep U1414-87 code can be a very tricky problem to troubleshoot, as there are many possible causes and solutions. In order to diagnose and repair the issue, it is important to understand the source of the code and be able to identify the different components affected. By identifying the cause and finding the solution, the problem can be quickly and easily solved.

FUSED IGNITION RUN/START CIRCUIT OPEN OR SHORTED TO GROUND

When the FUSED IGNITION RUN/START CIRCUIT is open or shorted to ground, it can cause the Jeep U1414-87 code to be triggered. The first step in troubleshooting this issue is to check the corresponding fuse in the circuit to ensure it is not blown. If the fuse is blown, it should be replaced to restore power to the circuit. If the fuse is intact, then further investigation into the circuit will be necessary to identify and repair the short or open.

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GROUND CIRCUIT OPEN

The next potential cause for the Jeep U1414-87 code is an open ground circuit. If the ground wire is not providing a solid connection, it can cause issues with the LIN Bus 1 messages. To diagnose this issue, the ground wire should be checked for continuity to ensure it is not open. If the ground wire is found to be open, it should be repaired or replaced to restore the connection and resolve the issue.

LIN BUS 1 CIRCUIT OPEN

The LIN Bus 1 CIRCUIT can also be the source of the Jeep U1414-87 code. If the LIN Bus 1 circuit is not providing a solid connection, then the messages from the LRSM will not be received. To diagnose this issue, the LIN Bus 1 circuit should be checked for an open connection. If the circuit is found to be open, it should be repaired or replaced to restore the connection and fix the issue.

LIGHT RAIN SENSING MODULE (LRSM) OR BODY CONTROL MODULE (BCM)

The last potential cause for the Jeep U1414-87 code is a problem with the LRSM or BCM. This can be caused by a variety of issues, including damage to the components or a malfunctioning module. To diagnose this issue, the LRSM and BCM should be checked for any signs of damage or malfunction. If any damage is found, then the components should be replaced to resolve the issue.

Conclusion

The Jeep U1414-87 code can be a very tricky problem to diagnose and repair. By understanding the source of the code and the different components affected, the issue can be quickly identified and resolved. By following the above steps and identifying the cause of the Jeep U1414-87 code, the issue can be easily resolved and the Jeep can be back on the road in no time. With the proper knowledge and understanding of the Jeep U1414-87 Code, the issue can be addressed and the vehicle can be back in working order quickly and easily.

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