NGS Scan Tool Screen Display Flow

If the NGS Scan Tool is powered by the battery, an initialization and brief internal system memory check are performed right after it is hooked up. If the NGS scan tool is powered by the cigar lighter, the initialization and the brief internal system memory check are performed right after turning the Key ON. During initialization, a message of M***** indicates that the vehicle selection and recorded data from the last testing session are stored in memory. A message of B***** indicates that memory time has been exceeded and no data is stored from the last testing session.

NGS Scan Tool Malfunction Display:

NOTE: If the NGS Scan Tool is malfunctioning, the message in the illustration appears on the screen display.

The NGS Scan Tool RAMTEST tests the recorder RAM area. The actual RAM Address indicates the location of the NGS Scan Tool fault. If a key is pressed, the RAMTEST continues with the next RAM ADDRESS. Each time a failure is detected in the NGS Scan Tool recorder RAM area, the screen display shown will be displayed.

If the message in the illustration appears, even once, the NGS Scan Tool should be turned off immediately and returned for service.