When driving a vehicle, it is important that the speed is accurately monitored. If there is an issue with the speed being recorded, this can cause an Infiniti code P1574. This code is the result of the Electronic Control Module (ECM) detecting a difference between two vehicle speed signals that is out of the specified range. There are quite a few potential causes for this issue, ranging from harness or connector problems to an issue with the Wheel sensor. To help with potential solutions, we have created a table that outlines some of the common causes and potential solutions for Infiniti Code P1574.
Causes and Solutions for Infiniti Code P1574
| Cause | Solution |
|---|---|
| Harness or Connectors | Check the wiring harness and connectors for any signs of damage or corrosion. |
| The CAN communication line is open or shorted. | Check the CAN communication line for any signs of damage or problems. |
| Unified meter and A/C amp. | Replace the unified meter and A/C amp if it has become damaged or malfunctioning. |
| ABS actuator and electric unit (control unit) | Check the ABS actuator and electric unit (control unit) for any signs of damage or malfunctioning. |
Harness or Connectors
If there is an issue with the wiring harness or connectors, it can cause Infiniti Code P1574. The wiring harness and connectors should be checked for any signs of damage or corrosion. If any problems are found, they should be repaired or replaced as soon as possible.
The CAN Communication Line
The CAN communication line is used to communicate between the vehicle’s components. If the CAN communication line is open or shorted, it can cause Infiniti Code P1574. The CAN communication line should be checked for any signs of damage or problems. If any problems are found, they should be repaired or replaced as soon as possible.
Unified Meter and A/C Amp
The unified meter and A/C amp are responsible for controlling the vehicle’s speed. If the unified meter and A/C amp become damaged or malfunctioning, it can cause Infiniti Code P1574. The unified meter and A/C amp should be checked for any signs of damage or problems. If any problems are found, they should be repaired or replaced as soon as possible.
ABS Actuator and Electric Unit (Control Unit)
The ABS actuator and electric unit (control unit) are responsible for controlling the vehicle’s speed. If the ABS actuator and electric unit (control unit) become damaged or malfunctioning, it can cause Infiniti Code P1574. The ABS actuator and electric unit (control unit) should be checked for any signs of damage or problems. If any problems are found, they should be repaired or replaced as soon as possible.
Conclusion
Infiniti Code P1574 can be caused by a variety of issues, ranging from harness or connector problems to an issue with the Wheel sensor. In order to troubleshoot and fix the issue, it is important to identify and address the underlying cause. By checking the wiring harness and connectors, the CAN communication line, the unified meter and A/C amp, and the ABS actuator and electric unit (control unit), it is possible to identify and address the cause of Infiniti Code P1574.
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