Symptom Chart - CTA
| Condition | Possible Causes | Action |
|---|---|---|
| A module does not respond to the diagnostic scan tool | Fuse Communication concern Wiring, terminals or connectors Module |
REFER to: Communications Network . |
| The CTA system is inoperative or does not function correctly | Refer to the Pinpoint Test | GO to Pinpoint Test B |
| The CTA system has poor or inconsistent performance | Refer to the Pinpoint Test | GO to Pinpoint Test B |
| The CTA system message center warnings are not displayed and the exterior mirror BLIS ®/ CTA LED does not illuminate | Refer to the Pinpoint Test | GO to Pinpoint Test B |
| An exterior mirror BLIS ®/ CTA LED does not illuminate when the IPC tone sounds for the CTA system | Refer to the Pinpoint Test | GO to Pinpoint Test B |
| An exterior mirror BLIS ®/ CTA LED is always on | Refer to the Pinpoint Test | GO to Pinpoint Test C |
| An exterior mirror BLIS ®/ CTA LED does not illuminate | Refer to the Pinpoint Test | GO to Pinpoint Test D |
| The IPC message center displays a blocked sensor message | Refer to the Pinpoint Test | GO to Pinpoint Test E |
| The CTA system cannot be turned off in the message center | Refer to the Pinpoint Test | GO to Pinpoint Test F |