Pinpoint Test BA: The Speed Sign Recognition Display Is Inoperative
- Normal Operation and Fault Conditions
See Speed Sign Display. REFER to: Message Center - 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 display 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 display off.
Possible Sources
- Communication concern
- IPMA concern
- GWM
- IPC
- BA1 CHECK THE MESSAGE CENTER OPERATION
- Ignition ON.
- Close all doors, hood and the liftgate.
- 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 BA2 No GO to Pinpoint Test A - BA2 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 Diagnostic Trouble Code (DTC) Chart . No GO to BA3 - BA3 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 the Master DTC Chart. No GO to BA4 - BA4 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: Controller Area Network (CAN) Module Communications Network . No DIAGNOSE the front camera. REFER to: Lane Keeping System .