Universal Heated Oxygen Sensor (Ho2S) #21 Connector End View (C172)

2014 Ford Taurus Limited, 2.0L Eng VIN 9SECTION Universal Heated Oxygen Sensor (Ho2S) #21 Connector End View (C172)
Fig 1: Identifying Universal Heated Oxygen Sensor (HO2S) No. 21 Connector (C172)
G09300982Courtesy of FORD MOTOR CO.
Pin Circuit Gauge Circuit Function Qualifier
1 LE450 (WH) 18 CTRL MOD. - POWERTRAIN # UNIVERSAL HEATED OXYGEN PUMPING CURRENT 2ND (UO2SPC21)  
2 CE236 (GY-VT) 18 CTRL MOD. - POWERTRAIN # HEATER OXYGEN SEN. PRE CAT. 2ND (UO2SHTR21)  
3 CBK02 (GN) 18 FUSE - 2 OR CIRCUIT BREAKER (VPWR)  
4 * * Not Used  
5 VE827 (WH-GN) 18 SENSOR - UNIVERSAL HEATED OXYGEN 2ND (UO2S21)  
6 LE449 (VT-GN) 18 CTRL MOD. - POWERTRAIN # VOLTAGE REFERENCE UNIVERSAL HEGO 2ND (UO2SGREF21)  
7 LE453 (BN-BU) 18 CTRL MOD. - POWERTRAIN # UNIVERSAL HEATED OXYGEN MEASURED 2ND (UO2SPCT21)  
8 * * Not Used  
Available Pigtail Kits  
Pigtail Kit Part Number WPT-1310 
G09300983
Service Part Number: CU2Z-14S411-AZA 
Gauge: 16 
Pin material: Silver 
Cavities:
Vehicle Uses
  • Sensor - O2 (HEGO/EGO)
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.