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OBD II Fault Code

  • OBD II P0649

    OBD-II Code Speedometer may not operate properly is defined as a Speed Control Lamp Control Circuit

    The Cruise Control Warning light should illuminated for a few seconds when the key is initially turned on. If the warning light fails to light, the engine control module (PCM) will set code P0649.

    Speedometer may not operate properly Symptoms

    • Speedometer may not operate properly

    Common Problems That Trigger the P0649 Code

    • Instrument cluster failure
    • Powertrain Control Module (PCM) failure
    • Warning light bulb failure
    • Wiring issue

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