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Diagnostic Fault Information

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2011 GMC Yukon XL, 2011 GMC Yukon, 2011 Chevrolet Tahoe, 2011 Chevrolet Suburban, and 2011 Chevrolet Avalanche. 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
B+ - Terminal 4 B1370 06, B1380 06, B1440 00, U0100-U0299, 2, 4 B1370 06, B1380 06, B1440 00, U0100-U0299 - -
Ignition - Terminal 2 B1370 06, B1380 06, U0100-U0299, 2, 4 B1370 06, 1 B1370 01, U0100-U0299, 1, 2 -
Ignition - Terminal 3 B1370 06, B1380 06, U0100-U0299, 2, 4 B1380 06, 1 B1380 01, P1629, 1 -
Ignition - Terminal 5 B1370 06, B1380 06, B1440 00, U0100-U0299, 2, 4 B1440 00, B1441 06, 1 B1440 00, B1441 01, 1 -
Ignition Voltage - BCM Terminal 21 X4 B1428, 3 B1370 06 - -
Accessory Wakeup Serial Data, BCM Terminal 19 X4 U1814, 3 U0100-U0299, P0513 00 - -
  1. Power Mode Mismatch
  2. Scan Tool Does Not Communicate with High Speed GMLAN Device
  3. This circuit is a pass through circuit in the BCM and will cause the B+ fuse to the ignition switch to be open.
  4. This circuit/condition will cause B+ fuse to the ignition switch to open, and may cause a no start condition.