Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Automatic Transmission Electronic Component Views
2004 Oldsmobile Bravada AWDSECTION Automatic Transmission Electronic Component Views
WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
| Callout | Component Name |
|---|---|
| 1 | Transmission Control Module Connectors |
| 2 | Transmission Control Module |
| 3 | Powertrain Control Module (PCM) (Gas) / Engine Control Module (ECM) (Diesel) |
| Callout | Component Name |
|---|---|
| 1 | Automatic Transmission Input Shaft Speed (ISS) Sensor |
| 2 | Turbine Sensor Harness Connector |
| 3 | Power Take-Off (PTO) Connector |
| 4 | Output Speed Sensor Harness Connector |
| 5 | Transfer Case Selector Shift Control Switch |
| 6 | Transmission Connector Harness |
| 7 | Park/Neutral Position (PNP) Switch |
| 8 | Allison Transmission |
| 9 | Engine Harness |
| Callout | Component Name |
|---|---|
| 1 | Tow/Haul Switch |
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.