Pinpoint Test AZ: SASM (Steering Angle Sensor Module) Communication Concern With The SECM (Steering Effort Control Module)
Refer to Vehicle Dynamic Systems for schematic and connector information.
Normal Operation and Fault Conditions
REFER to: Anti-Lock Brake System (ABS) and Stability Control - System Operation and Component Description .
With the ignition ON, the SECM sends messages to the SASM over a private CAN. If the SASM does not receive these messages within a certain time frame, the module sets Diagnostic Trouble Codes (DTCs). This can be due to a SECM failure, a circuit failure on the CAN network or an excessive load on the network.
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Condition |
|---|---|---|
| SASM U0130:00 | Lost Communication With Steering Effort Control Module: No Sub Type Information | Sets if the SASM detects any of the SECM messages are missing. |
| SASM U0419:81 | Invalid Data Received From Steering Effort Control Module: Invalid Serial Data Received | Sets when the SASM receives invalid adaptive front steering startup or shutdown information from the SECM. |
Possible Sources
- Wiring, terminals or connectors
- Network communication concern
- SECM
- SASM