Air Quality Sensor (K14)

2011 Cadillac CTS V, 2D Coupe, StandardSECTION Air Quality Sensor (K14)
Fig 1: Air Quality Sensor (K14)
GM2173551Courtesy of GENERAL MOTORS CORP.
Air Quality Sensor (K14)

Pin Wire Circuit Function
1 0.35 PK 639 Ignition Voltage
2 0.35 BK 450 Ground (LHD)
0.35 BK 650 Ground (RHD)
3 0.35 PU/WH 5203 Air Quality Sensor Signal
Connector Part Information 
  • Harness Type: Body (LHD)
  • Harness Type: Instrument Panel (RHD)
  • OEM Connector: 9133087
  • Service Connector: Pending
  • Description: 3-Way F 0.64 MQS Series, Sealed (GY)
Terminal Part Information 
  • Terminated Lead: 13576394
  • Release Tool: J-38125-12A
  • Diagnostic Test Probe: J-35616-64B (L-BU)
  • Terminal/Tray: 962885-5/15
  • Core/Insulation Crimp: 6/6
RENDER: 1.0x

NO RELATED

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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.