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HOMESERVICE MANUALSCHEVROLET2006COBALT SS, 4D SEDAN, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 14 (ENTERTAINMENT SYSTEM)DESCRIPTION AND OPERATIONON BOARD DIAGNOSTIC MODE
2006 Chevrolet Cobalt SS, 4D Sedan, Standard

On Board Diagnostic Mode

2006 Chevrolet Cobalt SS, 4D Sedan, StandardSECTION On Board Diagnostic Mode
WARNING: This page is about a different car, the 2005 Saturn L300. However, it is still accessible from the selected car via links, so may be relevant.

Follow the instructions below to enter and properly utilize the On Board Diagnostics:

Enter On Board Diagnostic Mode

  1. Key ON, engine OFF, radio in AM/FM mode.
  2. Press and hold RCL button, preset 1 button, and preset 6 button.
  3. While holding these buttons, press the VOL knob.
  4. A beep sounds when the radio enters On Board Diagnostic Mode.

Use the Seek button to advance to the desired mode, menu options vary according to the radio:

  • AM/FM CD Radio (U1C)
    • (T-01) Diagnostic Trouble Code Mode
    • (T-02) Test Tone Mode
    • (T-03) LCD Display Segment Mode
    • (T-04) Key Test Mode
    • (T-05) Antenna Signal Meter Mode
    • (T-06) Clear Diagnostic Trouble Code Mode
  • AM/FM Cassette/CD Radio (UP0) and AM/FM Cassette/6-Disc CD Radio (UB2)
    • (DTC) Diagnostic Trouble Code Mode
    • (TT) Test Tone Mode
    • (LCD) LCD Display Segment Test Mode
    • (KEY) Key Test Mode
    • (EQ) Equalization Settings
    • (ANT) Antenna Signal Meter Mode
    • (CDCH) Remote CD Player Communications Test
    • (CC) Clear Diagnostic Code Mode

Press the RCL button to select the desired mode. Refer to the Diagnostic Mode descriptions.

Press the RCL button (U1C), or the AM/FM button (UP0 and UB2) to return to OBD menu or press VOL knob to exit OBD Mode.

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.