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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1303 (Door Lock System & Door Handles) >> Diagnostic Information and Procedures >> DTC B3140 >> 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 Open/High Resistance Short to Voltage Signal Performance
Driver Door Lock Switch Lock Signal 1 1 1 -
Driver Door Lock Switch Unlock Signal B3140 00 1 1 -
Passenger Door Lock Switch Lock Signal 1 2 2 -
Passenger Door Lock Switch Unlock Signal 1 2 2 -
Door Lock Actuator Lock Control 3 3 3 -
Door Lock Actuator Unlock Control 3 3 3 -
Lock PCB Relay Control B3135 00 3 3 -
Unlock PCB Relay Control 3 B3125 00, B3130 00 3 -
Driver Door Lock Switch Ground - 1 1 -
I/P Fuse Block Ground - 3 3 -
Passenger Door Lock Switch Ground - 2 2 -
1. Driver Door Lock Switch Malfunction
2. Passenger Door Lock Switch Malfunction
3. Door Latch Malfunction