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.
2001 Lexus ES 300FACTORY OEM SERVICE PROCEDURE
Electrical Component Locator: Splices
SPLICES LOCATION
| Component | Component Location |
|---|---|
| B1 | In body harness, left front door sill. |
| B2 | In body harness, left "A" pillar. |
| B3 | In body harness, in roof, above left front window. |
| B4 | In body harness, near center of windshield header. |
| B5 | In body harness, left rear door sill. |
| B6 | In body harness, right front door sill. |
| B7 | In body harness, left quarterpanel. |
| B8 | In body harness, behind left rear seat. |
| B9 | In body harness, at left side of trunk lid. |
| B10 | In body harness, at left rear side of trunk lid. |
| B11 | In body harness, behind left taillight. |
| B12 | In body harness, center rear of trunk lid. |
| B13 | In body harness, behind center of rear bumper. |
| B14 | In body harness, at center rear of trunk lid. |
| B15 | In body harness, behind right taillight. |
| B16 | In body harness, below driver's seat. |
| B17 | In left front door harness, at front of left front door. |
| B18 | In body harness, left side of windshield header. |
| B19 | In right front door harness, at front of right front door. |
| B20 | In seat No. 1 harness, below driver's seat. |
| E1 | In engine harness, behind right headlight. See Figure. |
| E2 | In engine harness, at left front fender. See Figure. |
| E3 | In engine harness, at left front fender. See Figure. |
| E4 | In engine harness, at right front of engine. |
| I1 | In dash harness, at upper left end of dash. |
| I2 | In dash harness, at upper left end of dash. |
| I3 | In dash harness, behind combination meter. |
| I4 | In dash harness, under steering column. |
| I5 | In dash harness, at right side of dash. |
| I6 | In dash harness, at right end of dash. |
| I10 | In dash harness, at upper right side of dash. |
| I11 | In dash harness, at right side of dash. |
| I12 | In dash harness, at lower right end of dash. |
| I13 | In dash harness, at right end of dash. |
| I14 | In dash harness, at left end of dash. |
| I15 | In dash harness, at upper left end of dash. |
| I16 | In dash harness, at right side of center console. |
| I17 | In dash harness, at upper left end of dash. |
| I18 | In dash harness, at upper left end of dash. |
| I19 | In dash harness, at upper left end of dash. |
| I20 | In dash harness, above instrument panel junction block. |
| I21 | In dash harness, at upper right center of dash. |
| I22 | In dash harness, at upper right side of dash. |
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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