For 1990-2009 cars

Scan Tool Output Control | Additional Menu Selection(s) | Description
--- | --- | ---
Daytime Running Lamps | Light Test | The BCM actuates the DRL relay when you select ON. The headlamps should illuminate until commanded OFF.
Horn Relay | Miscellaneous Test | The BCM actuates the horn relay for 5 seconds when you select ON. The horn should sound for 5 seconds.
Passlock Power | Output Control | The BCM turns the Passlock power control ON or OFF as commanded by the scan tool.
Security Lamp | Miscellaneous Test | The BCM actuates the security LED when you select ON. The security LED should illuminate until commanded OFF.