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.
2000 Lexus ES 300FACTORY OEM SERVICE PROCEDURE
Electrical Component Locator: Connectors
CONNECTORS
| Component | Component Location |
|---|---|
| BQ1 (10 Pin) | At left center pillar. |
| BR1 (10 Pin) | At right center pillar. |
| BS1 (2 Pin) | Under driver's seat. |
| BS2 (10 Pin) | Under driver's seat. |
| BT1 (2 Pin) | Under front passenger's seat. |
| EA1 (Dark Gray, 2 Pin) | Behind left headlight. See Figure. |
| EB1 (Gray, 1 Pin) | Under engine compartment junction block. See Figure. |
| EB2 (Gray, 8 Pin) | Under engine compartment junction block. |
| EC1 (Dark Gray, 4 Pin) | At left bank cylinder head. See Figure. |
| EU1 (Black, 1 Pin) | Under engine compartment junction block. |
| ID1 (11 Pin) | At left kick panel. See Figure. |
| ID2 (5 Pin) | At left kick panel. See Figure. |
| ID3 (2 Pin) | At left kick panel. |
| IE1 (12 Pin) | At left kick panel. See Figure. |
| IE2 (25 Pin) | At left kick panel. |
| IF1 (11 Pin) | At left kick panel. |
| IF2 (Blue, 10 Pin) | At left kick panel. |
| IF3 (7 Pin) | At left kick panel. See Figure. |
| IG1 (12 Pin) | At right side of instrument panel junction block. See Figure. |
| IG2 (5 Pin) | At right side of instrument panel junction block. |
| IG3 (Blue, 13 Pin) | At right side of instrument panel junction block. |
| IH1 (6 Pin) | Behind radio assembly. See Figure. |
| IJ1 (19 Pin) | Under glove box. See Figure. |
| IK1 (5 Pin) | Under glove box. See Figure. |
| IK2 (Blue, 12 Pin) | Under glove box. See Figure. |
| IK3 (13 Pin) | Under glove box. See Figure. |
| IL1 (7 Pin) | Under glove box. |
| IM1 (7 Pin) | At right kick panel. |
| IM2 (13 Pin) | At right kick panel. |
| IM3 (14 Pin) | At right kick panel. |
| IM4 (Yellow, 2 Pin) | At right kick panel. |
| IM5 (14 Pin) | At right kick panel. |
| IN1 (10 Pin) | At right kick panel. |
| IN2 (3 Pin) | At right kick panel. |
| IO1 (7 Pin) | At right kick panel. |
| IO2 (25 Pin) | At right kick panel. |
| IP1 (11 Pin) | At right kick panel. |
| IP2 (5 Pin) | At right kick panel. |
| IV1 (Yellow, 2 Pin) | Behind dash, at left side of firewall. |
| IW1 (6 Pin) | At right side of instrument panel junction block. |
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.