Pinpoint Test R : U0253: Notes
Refer to Audio System/Navigation for schematic and connector information.
Normal Operation and Fault Conditions
The PAM communicates with the APIM on the HS-CAN.
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| U0253 | Lost Communication With Accessory Protocol Interface Module: No Subtype Information | A CMDTC that sets when the PAM is unable to communicate with the APIM for 0.5 seconds or more after the active park assist system has been activated. |
Possible Sources
- Communication concern
- APIM
- PAM