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Diagnostic Fault Information

WARNING: This page is about a different car, the 2019 GMC Savana 3500, 2019 GMC Savana 2500, 2019 Chevrolet Express 3500, and 2019 Chevrolet Express 2500. 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 Wake up 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.
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