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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 16 (Cellular, Entertainment, And Navigation) >> Diagnostic Information and Procedures >> Radio Displays LOC, LOCKED, or CODE

Radio Displays LOC, LOCKED, or CODE

WARNING: This page is about a different car, the 2007 Hummer H2. However, it is still accessible from the selected car via links, so may be relevant.
Radio Displays LOC, LOCKED, or CODE

Step Action Yes No
Schematic Reference: Radio/Navigation System Schematics 
 
Connector End View Reference: Entertainment/Communication Connector End Views 
1 Did you perform the Diagnostic System Check - Vehicle? Go to Step 2  Go to Diagnostic System Check - Vehicle
2
  1. Turn ON the ignition, with the engine OFF.
  2. Turn ON the radio.
Does the radio operate normally?		 Go to Testing for Intermittent Conditions and Poor Connections Go to Step 3 
3
  1. Reprogram the radio. Refer to Radio Setup  .
  2. Turn OFF the ignition.
  3. Turn ON the ignition, with the engine OFF.
  4. Turn ON the radio.
Does the radio display Locked?		 Go to Step 4  Go to Step 5 
4 Replace the radio. Refer to Control Module References .
Did you complete the replacement?		 Go to Step 5  -
5 Operate the system in order to verify the repair.
Did you correct the condition?		 System OK Go to Step 2 
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