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.
Engine Room Compartment
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Fuse and fusible link block 1 |
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Battery under side |
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Engine room center |
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: Vehicle front |
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No. |
Component |
Function |
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Pressure sensor downstream of air filter |
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Intake camshaft valve lift switchover |
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ECM |
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Decoupling relay |
The decoupling relay is controlled by BCM and changes power supply circuit of on-board electrical system while restart the engine. (stop/start system) For the details of the control, refer to System Description . |
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Starter relay |
The decoupling relay is controlled by ECM and supplies battery voltage to starter motor. For the details of control, refer to System Description . |
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Motor relay |
The motor relay is controlled by ECM and supplies battery voltage to ECU, actuator, sensor, and etc. |
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Water pump relay |
The water pump relay is controlled by ECM and supplies battery voltage to water pump. For the details of the control. |
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EVAP purge control valve |
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EVAP control system pressure sensor |
The EVAP control system pressure sensor detects pressure in the purge line. |
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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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