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HOMESERVICE MANUALSCHEVROLET2008CHEVY EXPRESS G2500, VAN CARGO, 6.6 6REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 241 (LIGHTING SYSTEMS)DIAGNOSTIC INFORMATION AND PROCEDURESSCAN TOOL DATA DEFINITIONSDATA
2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6

Scan Tool Data Definitions: Data

2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6SECTION Data
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2003 GMC Savana Special, 2003 GMC Savana Camper Special, 2003 GMC Savana, 2003 Chevrolet RV Cutaway, and 2003 Chevrolet Cutaway. However, it is still accessible from the selected car via links, so may be relevant.

Battery Voltage:  The scan tool displays the battery system voltage.

Dimming Potentiometer:  The scan tool displays the duty cycle of the pulse width modulated (PWM) signal distributed by the body control module (BCM) to the PWM controlled backlighting based on the position of the instrument panel (I/P) dimmer switch, thumbwheel. The scan tool displays 0 percent when the headlamp switch is in the OFF position and the daytime running lamps (DRL) are ON or the I/P dimmer switch is in the FULL DIM position. The scan tool displays 100 percent when either the headlamps or park lamps are activated and the I/P dimmer switch is in the FULL BRIGHT position.

Dimming Potentiometer R:  The scan tool displays the reference voltage to the dimming potentiometer, this voltage value is 5.0 volts.

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.