Saturn Code C0045 5A refers to a Left Rear Wheel Speed Sensor Circuit Plausibility Failure. An error code is detected when a short to ground, an open/high resistance, a short to voltage, or a missing wheel speed sensor signal is seen on the wheel speed sensor 12 V reference circuit. Similarly, an erratic signal output of the wheel speed sensor is detected when C0035 5A-C0050 5A is present. This can be due to ignition voltage exceeding 9.5 V, the brake pedal not being pressed, and a DTC not being set for the other wheel speed sensor on the same axle. To prevent this issue, knowing the causes and solutions associated with Saturn Code C0045 5A is important.
Causes and Solutions of Saturn Code C0045 5A
| Cause | Solution |
|---|---|
| C0035 00-C0050 00 | Check the wheel speed sensor 12 V reference circuit for short to ground, open/high resistance, or quick to voltage. |
| The wheel speed sensor power supply is less than 7.6 V | Replace the wheel speed sensor |
| A missing wheel speed sensor signal | Check the wiring and connectors for any issues. |
| C0035 5A-C0050 5A | Replace the wheel speed sensor. |
Wheel Speed Sensor Power Supply is Less Than 7.6 V
When the wheel speed sensor power supply is less than 7.6 V, it can cause the Saturn Code C0045 5A to appear. To resolve this issue, replacing the wheel speed sensor is necessary. The new wheel speed sensor should be installed with the proper tools and techniques to ensure it is securely connected to the vehicle.
A Missing Wheel Speed Sensor Signal
If a missing wheel speed sensor signal is detected, checking the wiring and connectors for any issues is important. Any loose connections or broken wires should be replaced immediately to prevent further damage to the vehicle. It is also important to check for any corrosion on the connectors, which can cause the issue.
C0035 5A-C0050 5A
If the Saturn Code C0045 5A is detected along with C0035 5A-C0050 5A, replacing the wheel speed sensor is recommended. This is because the erratic signal output of the wheel speed sensor is seen with these codes.
Conclusion
Saturn Code C0045 5A refers to a Left Rear Wheel Speed Sensor Circuit Plausibility Failure and can be caused by various issues. It is important to be aware of these causes and solutions to prevent this issue from occurring. By understanding the potential causes of Saturn Code C0045 5A and taking the necessary steps to address them, it is possible to maintain the optimal functioning of the vehicle.