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.
DVD unit (729): Connection: Notes
The DVD unit is supplied with +30 on pin 2 and grounded on pin 1. The O-bus has its own connection where pin 1 receives the signal and 2 transmits the signal.
| Pin no. | Signal type | Description |
|---|---|---|
| 1 | Ground | |
| 2 | +30 | |
| 1 | O-bus | Reception. Own connection. |
| 2 | O-bus | Transmission. Own connection. |
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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.
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