Circuit/System Verification
With a scan tool, access Power Mode data display list and compare all parameters listed with the corresponding ignition key position. The Power Mode Parameters table below illustrates the correct state of these input parameters in correspondence to the S39 ignition switch position. The circuits which the individual parameters are related to are in parentheses.
Power Mode Parameters
| Ignition Switch Position | 5 V IGN (Ignition Switch, Terminal 4 and 6) |
Accessory (Ignition Switch, Terminal 3) |
Run/Crank (Ignition Switch, Terminal 1) |
|---|---|---|---|
| Off Key Out | Key Out/ACC | Inactive | Inactive |
| Off Key IN | Key In/Off | Inactive | Inactive |
| Accessory | Key Out/ACC | Active | Inactive |
| Run | Run | Active | Active |
| Start | Crank Request | Inactive | Active |