Pinpoint Test Bu: PSCM (Power Steering Control Module) DTC (Diagnostic Trouble Code) U0422:00 Invalid Data Received From Body Control Module
NOTE:
DTC U0422:00 indicates a power mode message concern.
The module reporting this DTC is not the problem module.
Do not install a new EPAS assembly if this DTC is set.
Refer to POWER STEERING CONTROLS Wiring Diagrams for schematic and connector information.
Normal Operation and Fault Conditions
REFER to: Power Steering - System Operation and Component Description .
- Description
- The PSCM monitors the HS-CAN messages when the voltage to the PSCM is greater than 10 volts and there are no Diagnostic Trouble Codes (DTCs) present inhibiting PSCM operation.
- Diagnostic Aids
- For additional information on the messages sent to the PSCM from the BCM module, refer to the Network Message Chart .
- DTC U0422:00 indicates a power mode message concern. The module reporting this DTC is not the problem module. Do not install a new EPAS assembly if this DTC is set.
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Condition |
|---|---|---|
| PSCM U0422:00 | Invalid Data Received From Body Control Module: No Sub Type Information | This DTC is set if the PSCM receives an "fault" or "unknown" message from the BCM instead of valid information. |
Possible Sources
- HS-CAN concern
- BCM
Pinpoint Tests BU: PSCM DTC U0422 Invalid Data Received From Body Control Module