GMC Chevy Colorado 2023 Manual page 213

B52B Heated Oxygen Sensor 2
Connector Part Information
Harness Type: Engine Wiring Harness
OEM Connector: 10021265
Service Connector: 19330904
Description: 4-Way F 1.2 Multilock Series, Sealed( BK)
Terminal Type ID
I
Pin Size Color
1 0.5 GY / WH
2 0.5 VT / BU
3 0.5 WH / YE
4 0.5 VT / BU
2023 - Colorado Electrical Body Builder Manual
Electrical Component and Inline Harness Connector End Views
Terminal Part Information
Terminated Lead
Not required
B52B Heated Oxygen Sensor 2
Circuit
3122 HO2S Heater Low Control Bank 1 Sensor 2
5294 Powertrain Main Relay Fused Supply Voltage 5
3121 HO2S Low Signal Bank 1 Sensor 2
3120 HO2S High Signal Bank 1 Sensor 2
Diagnostic Test Probe
J-35616-12 (BU)
Function
6-89
4036496
Terminal Removal Tool
No Tool Required
Terminal Option
Type ID
I
I
I
I