Pinpoint Test R : U0253:87: Notes
Refer to Wiring Diagram Module Communications Network for schematic and connector information.
Normal Operation and Fault Conditions
The BCM communicates with the IPMA through the GWM. REFER to: Communications Network - System Operation and Component Description .
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| U0253:87 | Lost Communication With Accessory Protocol Interface Module: Missing Message | A continuous memory DTC that sets in the BCM if messages received from the APIM are missing. |
Possible Sources
- Communication network concern
- Battery voltage concern
- GWM concern
- APIM
- BCM