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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1343 (Power Seat System) >> Diagnostic Information and Procedures >> DTC B3920 or B3921 >> Diagnostic Fault Information

Diagnostic Fault Information

WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Circuit Short to Ground High Resistance Open Short to Voltage Signal Performance
Adjustable Pedal Motor Forward Control B3920 02 B1335 00, B1335 0B 3 B3920 01 B1335 42, B1335 4B, B3606 5A
Adjustable Pedal Motor Rearward Control B3920 02 B1335 00, B1335 0B 3 B3920 01 B1335 42, B1335 4B, B3606 5A
Driver Seat Front Vertical Motor Down Control B3920 02 B1335 00, B1335 0B 1 B3920 01 B1335 42, B1335 4B, B2355 5A
Driver Seat Front Vertical Motor Up Control B3920 02 B1335 00, B1335 0B 1 B3920 01 B1335 42, B1335 4B, B2355 5A
Driver Seat Rear Vertical Motor Down Control B3920 02 B1335 00, B1335 0B 1 B3920 01 B1335 42, B1335 4B, B2365 5A
Driver Seat Rear Vertical Motor Up Control B3920 02 B1335 00, B1335 0B 1 B3920 01 B1335 42, B1335 4B, B2365 5A
Driver Seat Horizontal Motor Forward Control B3920 02 B1335 00, B1335 0B 1 B3920 01 B1335 42, B1335 4B, B2375 5A
Driver Seat Horizontal Motor Rearward Control B3920 02 B1335 00, B1335 0B 1 B3920 01 B1335 42, B1335 4B, B2375 5A
Driver Seat Recline Motor Forward Control B3920 02 B1335 00, B1335 0B 1 B3920 01 B1335 42, B1335 4B, B1825 5A
Driver Seat Recline Motor Rearward Control B3920 02 B1335 00, B1335 0B 1 B3920 01 B1335 42, B1335 4B, B1825 5A
Driver Seat Lumbar Motor Up Control B3920 02 B1335 00, B1335 0B 2 B3920 01 B1335 42, B1335 4B, B1860 5A
Driver Seat Lumbar Motor Down Control B3920 02 B1335 00, B1335 0B 2 B3920 01 B1335 42, B1335 4B, B1860 5A
Driver Seat Lumbar Motor Forward Control B3920 02 B1335 00, B1335 0B 2 B3920 01 B1335 42, B1335 4B, B1850 5A
Driver Seat Lumbar Motor Rearward Control B3920 02 B1335 00, B1335 0B 2 B3920 01 B1335 42, B1335 4B, B1850 5A
1. Power seat motor inoperative
2. Lumbar motor inoperative
3. Adjustable pedal motor inoperative