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HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1084 (ENTERTAINMENT SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESDTC B1001: OPTION CONFIGURATION ERRORTEST DESCRIPTION
2003 Chevrolet TrailBlazer 4.2 S, 4WD

Test Description

2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Test Description
WARNING: This page is about a different car, the 2004 Pontiac Aztek and 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.

The numbers below refer to the step numbers on the diagnostic table.

  1. 2:  Clear all DTCs and cycle the ignition in order to verify that the DTC did not falsely set.
  2. 3:  Clear all DTCs after the repair procedure is complete.
DTC B1001

Step Action Yes No
1 Did you perform the Radio/Audio System Diagnostic System Check? Go to Step 2  Go to Diagnostic System Check - Entertainment System 
2 
  1. Install a scan tool.
  2. Turn ON the ignition, with the engine OFF.
  3. With the scan tool, perform the radio setup procedure. Refer to Radio Setup .
  4. Turn OFF the ignition.
  5. Turn ON the ignition, with the engine OFF.
Does the DTC reset?		 Go to Step 3  System OK
3 
IMPORTANT: Perform the setup procedure for the radio.
Replace the radio. Refer to Radio Replacement  for service procedure.Did you complete the replacement?		 System OK -
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.