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.
1998 Lexus LS 400FACTORY OEM SERVICE PROCEDURE
Electrical Component Locator: Connectors
CONNECTORS
| Component | Component Location |
|---|---|
| BR1 (15 Pin) | Base of left center pillar. |
| BS1 (15 Pin) | Base of right center pillar. |
| BT1 (14 Pin) | Under left rear seat cushion. |
| BT2 (12 Pin) | Under left rear seat cushion. |
| BU1 (15 Pin) | Under driver's seat. |
| BV1 (14 Pin) | Under front right seat. |
| EB1 (26 Pin) | Under engine compartment J/B. See Figure. |
| EB2 (1 Pin) | Under engine compartment J/B. See Figure. |
| EC1 (Black, 12 Pin) | At front of left fender. See Figure. |
| ED1 (Black, 3 Pin) | At rear of air intake chamber. See Figure. |
| IE1 (15 Pin) | At left kick panel. |
| IF1 (1 Pin) | At left kick panel. |
| IF2 (12 Pin) | At left kick panel. |
| IF3 (20 Pin) | At left kick panel. |
| IF4 (26 Pin) | At left kick panel. |
| IH1 (3 Pin) | At left side of blower unit. |
| II1 (26 Pin) | At left side of blower unit. |
| IJ1 (26 Pin) | At right side of dash. |
| IJ2 (19 Pin) | At right side of dash. |
| IK1 (10 Pin) | At right side of dash. |
| IL1 (16 Pin) | At right kick panel. |
| IM1 (14 Pin) | At right kick panel. |
| IM2 (26 Pin) | At right kick panel. |
| IM4 (17 Pin) | At right kick panel. |
| IN1 (16 Pin) | Behind radio & player. |
| IN2 (16 Pin) | Behind radio & player. |
| IN3 (Orange, 12 Pin) | Behind radio & player. |
| IW1 (4 Pin) | At right dash brace. |
| IO1 (15 Pin) | At left side of blower unit. |
| IP1 (17 Pin) | At left side of blower unit. |
| IQ1 (17 Pin) | At right side of shift lever. |
| IQ2 (13 Pin) | At right side of shift lever. |
Factory Service Tools
Use the Manual With the Right Hardware
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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.