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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSBUICK2010LUCERNE CXL, 3.9 1REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 320 (WIRING SYSTEMS AND POWER MANAGEMENT - COMPONENT CONNECTOR END VIEWS - ENGINE CONTROL MODULE X2 THROUGH PRESSURE CONTROL SOLENOID)COMPONENT CONNECTOR END VIEWSENGINE COOLANT TEMPERATURE (ECT) SENSOR
2010 Buick Lucerne CXL, 3.9 1
Engine Coolant Temperature (ECT) Sensor
2010 Buick Lucerne CXL, 3.9 1SECTION Engine Coolant Temperature (ECT) Sensor
WARNING: This page is about a different car, the 2011 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.
Engine Coolant Temperature (ECT) Sensor
| Pin | Wire | Circuit | Function |
|---|---|---|---|
| A | 0.5 YE | 410 | ECT Sensor Signal |
| B | 0.5 PK | 2761 | Low Reference |
Connector Part Information
|
Terminal Part Information
|
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.