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.
1997 Lexus SC 400FACTORY OEM SERVICE PROCEDURE
Electrical Component Locator: Miscellaneous
MISCELLANEOUS
| Component | Component Location |
|---|---|
| Data Link Connector (DLC) No. 1 (SC300) | On bracket, near left strut tower. |
| Data Link Connector (DLC) No. 1 (SC400) | On top left of engine. See Figure. |
| Data Link Connector (DLC) No. 2 | Under left side of dash, near kick panel. |
| Data Link Connector (DLC) No. 3 | Under left side of dash, near kick panel. |
| Diodes | On relay block No. 4. |
| Diode (Tension Reducer) | Behind left kick panel, near floor. |
| Distributor (SC300) | On top front of engine. See Figure. |
| Distributor No. 1 (SC400) | On left front of engine. See Figure. |
| Distributor No. 2 (SC400) | On right front of engine. See Figure. |
| Igniter (SC300) | In left side of engine compartment. See Figure. |
| Igniter No. 1 (SC400) | In left side of engine compartment. See Figure. |
| Igniter No. 2 (SC400) | In left side of engine compartment. See Figure. |
| Ignition Coil (SC300) | In right side of engine compartment. See Figure. |
| Ignition Coil No. 1 (SC400) | In left front side of engine compartment. See Figure. |
| Ignition Coil No. 2 (SC400) | In right front side of engine compartment. See Figure. |
| Stereo Power Amplifier | On right side of trunk. |
| Throttle Driver (W/ Traction Control | Behind right side of dash. See Figure. |
Factory Service Tools
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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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