DTC P20A3 Chevrolet
Abnormality in FR wheel speed sensor circuit
Abnormality in FR wheel speed sensor circuit
Description
The ASC-ECU monitors the voltage fluctuation in each wheel speed sensor circuit. If ASC-ECU detects the open or short circuit in the circuit, it will set a diagnostic trouble code. NOTE: For past trouble (History Codes) carry out diagnosis with particular emphasis on wiring harness and connector failures between ASC-ECU and the wheel speed sensor.
Cause and Solution
Damaged wiring harness and connectors Noise interference Malfunction of wheel speed sensor ASC-ECU malfunction
Video Guide
Diagnostic Info
- DTC Code: P20A3
- Brand: Chevrolet