Symptom Tests: Notes
SYMPTOM INDEX
| Symptom | Perform Test |
|---|---|
| Scan Tool Does Not Communicate With TDM | 1 |
| Security Indicator Light Inoperative | 2 |
| Security Indicator Always On Or Flashing | 3 |
| Theft Deterrent System Inoperative | 4 |
| Theft Deterrent Not Armed When Locked From Switch | 5 |
| Theft Deterrent Armed When Unlocked From Switch | 6 |
NOTE:
On immobilizer system and content theft deterrent systems, perform SYSTEM OPERATION CHECK prior to system diagnosis. See TROUBLE SHOOTING. After making repairs, repeat SYSTEM OPERATION CHECK to ensure proper system operation.
NOTE:
System tests are written specifically for GM Tech 2 scan tool. A generic scan tool may not be capable of performing all necessary test functions.