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.
B52D Heated Oxygen Sensor - Bank 1 Sensor 2 (LGX)
2020 GMC Acadia SLSECTION B52D Heated Oxygen Sensor - Bank 1 Sensor 2 (LGX)
Connector Part Information
|
Terminal Part Information
| Terminal Type ID | Terminated Lead | Diagnostic Test Probe | Terminal Removal Tool |
|---|---|---|---|
| I | Not required | J-35616-13 (BU) | No Tool Required |
| II | Not required | J-35616-16 (LT GN) | No Tool Required |
| Pin | Size | Color | Circuit | Function | Terminal Type ID | Option |
|---|---|---|---|---|---|---|
| 1 | 0.5 0.5 0.5 |
GY/WH GY/WH GY/WH |
3122 3122 3122 |
Heated Oxygen Sensor Heater Low Control Bank 1 Sensor 2 Heated Oxygen Sensor Heater Low Control Bank 1 Sensor 2 Heated Oxygen Sensor Heater Low Control Bank 1 Sensor 2 |
II II I |
F48 F48+LGX LGX |
| 2 | 0.5 0.5 0.5 |
VT/BU VT/BU VT/BU |
5294 5294 5294 |
Powertrain Main Relay Fused Supply 5 Powertrain Main Relay Fused Supply 5 Powertrain Main Relay Fused Supply 5 |
II II I |
F48 F48+LGX LGX |
| 3 | 0.5 0.5 0.5 |
WH/YE WH/YE WH/YE |
3121 3121 3121 |
Heated Oxygen Sensor Low Signal Bank 1 Sensor 2 Heated Oxygen Sensor Low Signal Bank 1 Sensor 2 Heated Oxygen Sensor Low Signal Bank 1 Sensor 2 |
II II I |
F48 F48+LGX LGX |
| 4 | 0.5 0.5 0.5 |
VT/BU VT/BU VT/BU |
3120 3120 3120 |
Heated Oxygen Sensor High Signal Bank 1 Sensor 2 Heated Oxygen Sensor High Signal Bank 1 Sensor 2 Heated Oxygen Sensor High Signal Bank 1 Sensor 2 |
II II I |
F48 F48+LGX LGX |
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.