Driver Door Module (DDM)

2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Driver Door Module (DDM)
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
Back Only Heat Indicator

The scan tool displays the current status of the heated seat back indicator.

Back Only Heat Switch

The scan tool displays the status of the heated seat back switch. While the heated seat back switch is being pressed the scan tool will display Active, and when it is released the scan tool will display Inactive.

Heat Indicator Low

The scan tool displays the current status of the low heat indicator.

Heat Indicator Medium

The scan tool displays the current status of the medium heat indicator.

Heat Indicator High

The scan tool displays the current status of the high heat indicator.

Heated Seat Switch

The scan tool displays the status of the heated seat back and cushion switch. While the heated seat back and cushion switch is being pressed the scan tool will display Active, and when it is released the scan tool will display Inactive.

Memory Switch

The scan tool displays the status of the memory switch. While the 1 or 2 switches are being pressed the scan tool will display Memory 1 or Memory 2 and when both switches are in an inactive state the scan tool will display Idle.

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:

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