U0420-00-Invalid Data Received From Power Steering Control Module A
The Air Suspension Control Module (ASCM) will set this DTC if the Electric Power Steering (EPS) module sends an invalid CAN message or SNA (signal not available) for any of the following:
| CAN Messages | Description |
| EPS_FD_1. Lws Angle | Steering Angle Sensor Angle Value |
| EPS_FD_1. Lws Speed | Steering Angle Sensor Speed Value |
Refer to DIAGNOSIS AND TESTING to diagnose the CAN network and EPS module.