B52C Heated Oxygen Sensor - Bank 1 Sensor 1 (L8T)
WARNING: This page is about a different car, the 2023 GMC Sierra 3500 HD and 2023 GMC Sierra 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
 Courtesy of GENERAL MOTORS COMPANY
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Connector Part Information
- Harness Type: Engine Wiring Harness
- OEM Connector: 33253021
- Service Connector: 19354075
- Description: 4-Way F 1.2 Multilock Series, Sealed (BK)
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Terminal Part Information
| Terminal Type ID |
Terminated Lead |
Diagnostic Test Probe |
Terminal Removal Tool |
| I |
Not required |
J-35616-12 (BU) |
No Tool Required |
| Pin |
Size |
Color |
Circuit |
Function |
Terminal Type ID |
Option |
| 1 |
0.5 |
GY/WH |
3113 |
HO2S Heater Low Control Bank 1 Sensor 1 |
I |
- |
| 2 |
0.75 |
VT/BU |
5293 |
Powertrain Main Relay Fused Supply Voltage 4 |
I |
- |
| 3 |
0.5 |
WH/BK |
3111 |
HO2S Low Signal Bank 1 Sensor 1 |
I |
- |
| 4 |
0.5 |
VT/GY |
3110 |
HO2S High Signal Bank 1 Sensor 1 |
I |
- |