B1395 07 Chevrolet Silverado 3500 HD

The BCM detects a voltage that is greater than 4.97 volts on I/P dimming voltage reference circuit.

Action Taken When the DTC Sets

1. The I/P dimmer switch will not operate.
2. The I/P dimming lamps will not illuminate.

Conditions for Clearing the DTC

1. The condition responsible for setting the DTC no longer exists.
2. history DTC will clear once 100 consecutive malfunction-free ignition cycles have occurred.

Reference Information

Schematic Reference

1. «Interior Lights Dimming Schematics»(ref-317143-S18831636972009060900000)
2. «Exterior Lights Schematics»(ref-317143-S33155387862009060900000)

Connector End View Reference

Component Connector End Views

Description and Operation

Interior Lighting Systems Description and Operation

Electrical Information Reference

1. «Circuit Testing»(ref-317172-S12100958872009060900000)
2. «Connector Repairs»(ref-317172-S41839496312009060900000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-317172-S08096213032009060900000)
4. «Wiring Repairs»(ref-317172-S40815672902009060900000)

Scan Tool Reference

Control Module References for scan tool information