Scan Tool Data Definitions: Outputs
WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
- Daytime Running Lamps
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The scan tool displays the commanded state of the daytime running lamps (DRL). The scan tool displays ON when the body control module (BCM) allows the DRL relay to activate the DRL.
- High Beam Relay
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The scan tool displays the commanded state of the high beam relay. The scan tool displays On when the BCM allows the high beam relay to go to ground activating the high beam headlamps.
- Low Beam Output
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The scan tool displays the commanded state of the low beam relay. The scan tool displays ON when the BCM allows the low beam relay to activate the low beam headlamps.
- Park Lamp Relay
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The scan tool displays the commanded state of the park lamp relay. The scan tool displays ON when the BCM allows the park lamp relay to activate the park lamps.