Crankshaft Position (CKP) Sensor

2009 Chevrolet Tahoe Base, 4.8 CSECTION Crankshaft Position (CKP) Sensor
Fig 1: Crankshaft Position (CKP) Sensor Connector End View
GM684840Courtesy of GENERAL MOTORS CORP.
Crankshaft Position (CKP) Sensor

Pin Wire Circuit Function
A 0.35 WH/BK 6271 Crankshaft Position (CKP) Sensor Signal
B 0.35 GY/BK 6272 Low Reference
C 0.35 PU/WH 6270 5-Volt Reference
Connector Part Information 
  • OEM: 12129946
  • Service: 88987997
  • Description: 3-Way F Metri-Pack 150 Series Sealed (GY)
Terminal Part Information 
  • Terminal/Tray: 12160223/3
  • Core/Insulation Crimp: E/1
  • Release Tool/Test Probe: 12094429/J-35616-14 (GN)
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.