Mazda Code C1145 is a system of ABS wheel-speed sensors that have been detected in a open circuit. This open circuit can be found in the ABS wheel-speed sensor or the ABS wheel-speed sensor wiring harness on any of the four vehicle wheels. While this issue is concerning, it is important to know that there are a variety of causes that can lead to this issue, such as an open circuit in the wiring harness, ABS wheel-speed sensor malfunction, DSC/RSC HU/CM malfunction, and poor connection at connectors (female terminal). In order to ensure Mazda Code C1145 does not become a persistent issue, it is important to identify the root cause and provide a suitable solution.
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Causes and Solutions for Mazda Code C1145
| Cause | Solution |
|---|---|
| Open circuit in the wiring harness | Inspect the wiring harness between the DSC/RSC HU/CM terminal and the ABS wheel-speed sensor terminal. |
| ABS wheel-speed sensor malfunction | Replace the ABS wheel-speed sensor. |
| DSC/RSC HU/CM malfunction | Replace the DSC/RSC HU/CM. |
| Poor connection at connectors (female terminal) | Check the connection at connectors (female terminal). |
Open Circuit in the Wiring Harness
The ABS wheel-speed sensor detects the wheel’s rotational speed and transmits the data to the DSC/RSC HU/CM. If there is an open circuit in the wiring harness, the data will not be transmitted correctly, and the Mazda Code C1145 will be detected. To address this issue, inspecting the wiring harness between the DSC/RSC HU/CM terminal and the ABS wheel-speed sensor terminal is necessary. If the wiring harness is damaged, it should be replaced.
💥See also: Mazda Code P1780
ABS Wheel-Speed Sensor Malfunction
A malfunctioning ABS wheel-speed sensor may also be the cause of Mazda Code C1145. If the ABS wheel-speed sensor is malfunctioning, it will not be able to detect the rotational speed of the wheel, which will result in the detection of the code. To address this issue, the ABS wheel-speed sensor should be replaced.
DSC/RSC HU/CM Malfunction
The DSC/RSC HU/CM is the control module for the ABS system. If the DSC/RSC HU/CM is malfunctioning, it may lead to the detection of the code. The DSC/RSC HU/CM should be replaced to address this issue.
Poor Connection at Connectors (Female Terminal)
In some cases, the code may be detected due to a poor connection at the connectors (female terminal). To address this issue, the connection at the connectors should be checked and adjusted if necessary.
Conclusion
Mazda Code C1145 is a system of ABS wheel-speed sensors that has been detected in an open circuit. This open circuit can be found in the ABS wheel-speed sensor or the ABS wheel-speed sensor wiring harness on any of the four vehicle wheels. To ensure that Mazda Code C1145 does not become a persistent issue, it is essential to identify the root cause and provide a suitable solution. The root cause of this issue can be an open circuit in the wiring harness, ABS wheel-speed sensor malfunction, DSC/RSC HU/CM malfunction, or poor connection at connectors (female terminal). Solutions for each of these issues have been provided in this article so that you can diagnose and fix Mazda Code C1145 as soon as possible.