Pinpoint Test J : U0151:87, U0452:00: Notes
WARNING: This page is about a different car, the 2017 Lincoln Navigator and 2017 Ford Expedition. However, it is still accessible from the selected car via links, so may be relevant.
Normal Operation and Fault Conditions
With the ignition ON, the RCM sends messages to the VDM over the HS-CAN. If the VDM does not receive these messages within a certain time frame, the VDM sets DTCs. For information on the network messages sent to the VDM by the RCM, refer to Vehicle Dynamic Suspension .
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| U0151:87 | Lost Communication with Restraints Control Module: Missing Message | This DTC sets in continuous memory if any one of the following RCM messages is missing; vehicle lateral acceleration, vehicle longitudinal acceleration, vehicle roll rate, vehicle vertical acceleration and vehicle yaw rate. This can be due to a RCM failure, a circuit failure on the HS-CAN or an excessive load on the network. |
| U0452:00 | Invalid Data Received from Restraints Control Module: No Sub Type Information | This DTC sets in continuous memory if any one of the following RCM messages contains "invalid" instead of the valid message data; vehicle lateral acceleration, vehicle longitudinal acceleration, vehicle roll rate, vehicle vertical acceleration and vehicle yaw rate. |
Possible Causes
- Network communication concern
- Vehicle battery
- Charging system concern
- RCM