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.
2003 Saturn L300FACTORY OEM SERVICE PROCEDURE
Electrical Component Locator: Splices
SPLICES LOCATION
| Component | Location |
|---|---|
| SP103 | At left front corner of engine compartment, near battery. See Figure. |
| SP104 | At rear of engine compartment, taped to engine harness. |
| SP105 | At rear of engine compartment, taped to engine harness. |
| SP120 | At rear of engine compartment, taped to engine harness. |
| SP191 | At left side of engine compartment, near strut tower. See Figure. |
| SP300 | Under center console. See Figure. |
| SP401 | At left rear of vehicle, near left taillight assembly. |
| SP464 | In top of liftgate. |
| S101 | In engine harness. |
| S105 | In headlight harness, near left front park/turn signal light. |
| S106 | In headlight harness, near right front park/turn signal light. |
| S107 | In headlight harness, near left front park/turn signal light. |
| S108 | In headlight harness, near right front park/turn signal light. |
| S128 | In engine harness, near breakout for left front wheel speed sensor. |
| S139 | In fuel injector harness. |
| S140 | In fuel injector harness. |
| S202 | In steering wheel jumper harness, under inflatable restraint steering wheel module. |
| S205 | In HVAC harness. |
| S206 | In HVAC harness. |
| S308 | In headliner harness. |
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.
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