Diagnosis By Symptom - CVRSS
"NO RSS DATA" LOSS OF SERIAL COMMUNICATIONWiring Diagram:
DESCRIPTION: If any of the following conditions are present, a "SERVICE RIDE CONTROL" message will be displayed. However, upon entering into diagnostic mode, the IPC will display either "NO RSS DATA" or "NO RSS CODES."
^ Loss of battery feed
^ Loss of ignition feed
^ Loss of system ground
^ Loss of UART interface
NOTE: Each of the above conditions may cause a PZM code PZ2056.
NOTES ON FAULT TREE:
^ Refer to Notes on intermittents. Notes on Intermittents
^ Refer to PZ2056 trouble code diagnosis. Clear codes. Testing and Inspection
DIAGNOSTIC AIDS: Check for possible loose battery or ignition connections to the RSS module, including all fuse connections.