C0045
Left Rear Wheel Speed Sensor Circuit
2018-2018 Cadillac XT5 3.6L V6
Moderate SeverityChassisGeneric (SAE)
The 2018 Cadillac XT5 is equipped with a 3.6L V6 engine. Below you'll find detailed c0045 diagnostic code information including labor time estimates, cost ranges, and technician notes specific to this engine configuration.
Description
Malfunction in left rear wheel speed sensor.
Symptoms
- ABS light on
- Rear ABS not functioning
Common Causes
- Faulty sensor
- Tone ring damage
- Wiring issue
Diagnostic Steps
- Test sensor
- Inspect tone ring
- Check wiring
Repair Notes
Replace sensor.
Related Codes
Other Chassis Codes
- C0021LF Wheel Speed Sensor Range/Performance
- C0022RF Wheel Speed Sensor Range/Performance
- C0023LR Wheel Speed Sensor Range/Performance
- C0024RR Wheel Speed Sensor Range/Performance
- C0025LF Wheel Speed Sensor Circuit Intermittent
- C0026RF Wheel Speed Sensor Circuit Intermittent
- C0027LR Wheel Speed Sensor Circuit Intermittent
- C0028RR Wheel Speed Sensor Circuit Intermittent
- C0035Left Front Wheel Speed Sensor Circuit
- C0036Left Front Wheel Speed Signal Erratic
C0045 on Other Vehicles
Common Questions
What does code C0045 mean on a 2018-2018 Cadillac XT5?
C0045 stands for "Left Rear Wheel Speed Sensor Circuit". Malfunction in left rear wheel speed sensor.
What are the symptoms of C0045 on a Cadillac XT5?
Common symptoms of C0045 include: ABS light on, Rear ABS not functioning.
What causes C0045 on a 2018-2018 Cadillac XT5?
Common causes of C0045 include: Faulty sensor, Tone ring damage, Wiring issue.
Last updated: March 2026