Pinpoint Test BR: The Speed Limit Sign RTT (RECONFIGURABLE Telltale) Indicator Is Never Or Always On
- Normal Operation and Fault Conditions
See Speed Limit Sign Recognition. REFER to: Instrument Panel Cluster (IPC) - System Operation and Component Description .
If the traffic sign recognition status request message is missing for less than 5 seconds, the IPC defaults the speed limit sign RTT indicator to its last indication state (on or off), based upon the last message received.
If the traffic sign recognition status request message is missing for 5 seconds or longer, the IPC defaults the speed limit sign RTT indicator off.
Possible Sources
- Communication concern
- IPMA concern
- GWM
- IPC
- BR1 CHECK THE MESSAGE CENTER OPERATION
- Ignition ON.
- Close all doors, liftgate and hood.
- Clear all message center warnings by pressing the OK button for each warning present.
- Monitor the door ajar RTT.
- Open the driver door.
- Clear the message center popup warning.
- Monitor the door ajar RTT.
Is the door ajar RTT off with the door closed, and on with the door open?
Yes GO to BR2 No GO to Pinpoint Test A - BR2 PERFORM THE IPC (INSTRUMENT PANEL CLUSTER) SELF-TEST
- Ignition ON.
- Using a diagnostic scan tool, perform the IPC self-test.
Are any Diagnostic Trouble Codes (DTCs) recorded?
Yes REFER to the IPC DTC Chart. No GO to BR3 - BR3 PERFORM THE IPMA (IMAGE PROCESSING MODULE A) SELF-TEST
- Using a diagnostic scan tool, perform the IPMA self-test.
Are any Diagnostic Trouble Codes (DTCs) recorded?
Yes REFER to: Lane Keeping System No GO to BR4 - BR4 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)
- Using a diagnostic scan tool, check the GWM Continuous Memory Diagnostic Trouble Codes (DTCs).
Are any Diagnostic Trouble Codes (DTCs) recorded?
Yes REFER to: Communications Network No DIAGNOSE the front camera. REFER to: Lane Keeping System