When it comes to Chevrolet C0055 18 Code, it is a diagnostic trouble code (DTC) that is associated with the rear wheel speed sensor circuit signal amplitude being lower than the minimum. This code is triggered when the ignition voltage is greater than 10 volts, and the Electronic Brake Control Module (EBCM) detects a short to voltage, short to ground, or an open/high resistance on the rear wheel speed sensor signal circuit. The cause of this code can be attributed to several issues, such as the replicated output speed signal being erratic or having electrical noise on the signal causing the 128K pulses/mile engine speed signal to lose pulses, or a defective transmission vehicle speed sensor or output speed sensor resulting in an inaccurate speed reading, creating a faulty replicated output speed signal.
Causes and Solutions for Chevrolet C0055 18 Code
| Causes | Solutions |
| ———– | ———– |
| Short to voltage, short to ground, or an open/high resistance on the rear wheel speed sensor signal circuit | Replace or repair the rear wheel speed sensor signal circuit |
| Replicated output speed signal being erratic or having electrical noise on the signal | Check the wiring and connectors of the rear wheel speed sensor signal circuit and repair any issues |
| Defective transmission vehicle speed sensor or output speed sensor | Replace the defective transmission vehicle speed sensor or output speed sensor |
| 128K pulses/mile engine speed signal losing pulses | Check the wiring and connectors of the rear wheel speed sensor signal circuit and repair any issues |
Short to Voltage, Short to Ground, or Open/High Resistance on Rear Wheel Speed Sensor Signal Circuit
The Chevrolet C0055 18 Code is triggered when the Electronic Brake Control Module (EBCM) detects a short to voltage, short to ground, or an open/high resistance on the rear wheel speed sensor signal circuit. This is usually due to a damaged or corroded wiring harness, a defective rear wheel speed sensor, or a damaged or faulty connector.
Replicated Output Speed Signal Being Erratic or Having Electrical Noise on Signal
The Chevrolet C0055 18 Code can also be caused by the replicated output speed signal being erratic or having electrical noise on the signal. This can be due to a damaged wiring harness, faulty connectors, or a faulty rear wheel speed sensor itself.
Defective Transmission Vehicle Speed Sensor or Output Speed Sensor
Another possible cause of the Chevrolet C0055 18 Code is a defective transmission vehicle speed sensor or output speed sensor. This can be due to a faulty transmission vehicle speed sensor or output speed sensor, a faulty wiring harness, or a corroded or damaged connector.
128K Pulses/Mile Engine Speed Signal Losing Pulses
The Chevrolet C0055 18 Code can also be caused by the 128K pulses/mile engine speed signal losing pulses. This can be due to a faulty wiring harness, faulty connectors, or a faulty rear wheel speed sensor itself.
Conclusion
The Chevrolet C0055 18 Code is a diagnostic trouble code (DTC) that is associated with the rear wheel speed sensor circuit signal amplitude being lower than the minimum. There are several issues that can cause this code, such as a short to voltage, short to ground, or open/high resistance on the rear wheel speed sensor signal circuit, a replicated output speed signal being erratic or having electrical noise on the signal, a defective transmission vehicle speed sensor or output speed sensor, and a 128K pulses/mile engine speed signal losing pulses. Solutions to these issues include replacing or repairing the rear wheel speed sensor signal circuit, checking the wiring and connectors of the rear wheel speed sensor signal circuit and repairing any issues, replacing the defective transmission vehicle speed sensor or output speed sensor, and checking the wiring and connectors of the rear wheel speed sensor signal circuit and repairing any issues. By understanding the causes and solutions for the Chevrolet C0055 18 Code, you can ensure that your vehicle is running smoothly and safely.
https://www.youtube.com/watch?v=zvfWFXC0MMY