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window in the UP or DOWN direction. Conditions for Running the DTC Battery voltage is between 9-16 volts. Conditions for Setting the DTC B3819 00 The BCM detects a fault in the left rear window up circuit. B3820 00 The BCM detects a fault in the left rear window down circuit. B3822 00 The BCM detects a fault in the right rear window up circuit. B3823 00 The BCM detects a fault in the right rear window down circuit. Action Taken When the DTC Sets The left or right rear power window will be inoperative from the driver master control. Conditions for Clearing the DTC The DTC will be current for as long as the fault is present. When the fault is no longer present, the DTC will be a history DTC. A history DTC will clear after 50 ignition cycles. Reference Information Schematic Reference Moveable Window Schematics Connector End View Reference Component Connector End Views
2008 Chevrolet Silverado 1500 2008 ACCESSORIES & EQUIPMENT Fixed and Moveable Windows - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Description and Operation Power Windows Description and Operation Electrical Information Reference Circuit Testing Connector Repairs Testing for Intermittent Conditions and Poor Connections Wiring Repairs Scan Tool Reference Control Module References for scan tool information Circuit/System Verification Command the appropriate rear door window UP and DOWN with a scan tool. The rear door If the LR or RR window sets B3819 00 or B3822 00 during the UP command, refer to If the LR or RR window sets B3820 00 or B3823 00 during the DOWN command, refer to Circuit/System Testing B3819 00 or B3822 00 1. Ignition OFF, disconnect the harness connector at the appropriate rear window switch. 2. Test for more than 10 volts between the power window switch rear up signal circuit terminal B and ground while commanding the rear window UP with a scan tool. If less than the specified range, test the signal circuit for a short to ground or open/high 3. If the circuit tests normal, replace the rear window switch. B3820 00 or B3823 00 1. Ignition OFF, disconnect the harness connector at the appropriate rear window switch. 2. Test for more than 10 volts between the power window switch rear down signal circuit
2008 Chevrolet Silverado 1500 2008 ACCESSORIES & EQUIPMENT Fixed and Moveable Windows - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
terminal C and ground while commanding the rear window DOWN with a scan tool. If less than the specified range, test the signal circuit for a short to ground or open/high 3. If the circuit tests normal, replace the rear window switch. Repair Procedures Perform the Diagnostic Repair Verification after completing the diagnostic procedure. Rear Side Door Window Switch Replacement (Crew Cab) or Rear Side Door Control Module References for BCM replacement, setup and programming DTC B3821 OR B3824 Diagnostic Instructions Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. Review Strategy Based Diagnosis for an overview of the diagnostic approach. Diagnostic Procedure Instructions provides an overview of each diagnostic category. DTC Descriptors DTC B3821 00 Left Rear Window Relay Power Circuit DTC B3824 00 Right Rear Window Relay Power Circuit Diagnostic Fault Information Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance Driver Door Switch B+ U0199 00 U0199 00 - - LR Window Switch B+ 1, 3 3 - - Passenger Door Switch B+ U0200 00 U0200 00 - - RR Window Switch B+ 2, 4 4 - - Power Window Switch Right B3823 00 B3823 00 B3823 00 -
2008 Chevrolet Silverado 1500 2008 ACCESSORIES & EQUIPMENT Fixed and Moveable Windows - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Circuit/System Description The body control module (BCM) monitors the window lockout command from the driver door Conditions for Running the DTC Battery voltage is between 9-16 volts. Rear Down Signal B3822 00 B3822 00 B3822 00 - Power Window Switch Left B3820 00 B3820 00 B3820 00 - Power Window Switch Left B3819 00 B3819 00 B3819 00 - Power Window Lockout Left B3821 00 B3821 00 B3821 00 - Power Window Lockout Right B3824 00 B3824 00 B3824 00 - LR Window Motor Control 3 3 3 - Passenger Window Motor B3205 00 B3205 0B B3205 00 - RR Window Motor Control 4 4 4 - Driver Window Motor B3205 00 B3205 0B B3205 00 - LR Window Switch Ground - 3 3 - RR Window Switch Ground - 4 4 - Driver Door Switch Ground - U0199 00 1 - Passenger Door Switch - U0200 00 2 - 1. Driver Window Malfunction
2008 Chevrolet Silverado 1500 2008 ACCESSORIES & EQUIPMENT Fixed and Moveable Windows - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
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