Diagnostic Overview
Normal Operation and Fault Conditions
The RCM uses information contained in messages from the APIM sent on the High Speed Controller Area Network (HS-CAN).
DTC FAULT TRIGGER CONDITIONS
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| U0253:00 | Lost Communication with Accessory Protocol Interface Module: No Sub Type Information | This DTC sets if the RCM does not receive an expected message from the APIM . |