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Home >> Hummer >> 2008 >> H3 Base, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 168 (Cellular System, Entertainment System, And Navigation System) >> Diagnostic Information and Procedures >> OnStar Button LED Inoperative >> Diagnostic Fault Information
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Diagnostic Fault Information

WARNING: This page is about a different car, the 2008 Cadillac STS. 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
Keypad Supply Voltage B2476 00 B2476 00 B2476 00 -
Keypad Green LED Signal 1 1 1 -
Keypad Red LED Signal 1 1 1 -
Keypad Signal B2482 00 B2482 00 B2482 00 -
Inside Rearview Mirror Ground - 2 - -
  1. OnStar Button LED Inoperative
  2. OnStar One Or More Buttons Inoperative