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.

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HOMESERVICE MANUALSHONDA2006CIVIC DX, 4D SEDAN, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 76 (ADVANCED HYDRAULIC BOOSTER (HYBRID))SYSTEM DESCRIPTIONSERVO UNIT INTERNAL CONSTRUCTIONNOTES

2006 Honda Civic DX, 4D Sedan, Automatic

Servo Unit Internal Construction: Notes

2006 Honda Civic DX, 4D Sedan, AutomaticSECTION Notes

WARNING: This page is about a different variant/trim than selected.

The servo unit has mechanical and electrical components.

ECU (electronic control unit)
Mechanical valves: mechanical IN (inlet) valve, mechanical OUT (outlet) valve.
Solenoid valves: NO⁽⁾, NC⁽⁾, RNO⁽⁾, RNC⁽⁾
Pressure sensors: PMC sensor, PACC sensor, PREG sensor.

⁽⁾ Normally open

⁽⁾ Normally closed

Fig 1: Servo Unit And Electrical Components - Circuit Diagram
Courtesy of AMERICAN HONDA MOTOR CO., INC.

RENDER: 1.0x

NO RELATED

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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.