Checking the display lighting
Symptom: Part of the display has poorly lit segments.
| Checking the display lighting | 
Diagnostic procedure
| 1. | Connect the Scan Tool
and select the "ACTIVATE" menu and then "DISPLAY TEST". | |
| 2. | This command lights up all the segments in the SID unit display and then causes
the display to go from completely black to maximum brightness.   | |
| 3. | If the display is not OK, continue as described on page | |

 
     
		