B75C Multifunction Intake Air Sensor

2020 GMC Acadia SLSECTION B75C Multifunction Intake Air Sensor
WARNING: This page is about a different car, the 2019 GMC Acadia. However, it is still accessible from the selected car via links, so may be relevant.
GM4708234Courtesy of GENERAL MOTORS COMPANY
Connector Part Information
  • Harness Type: Engine
  • OEM Connector: 31404-9110
  • Service Connector: 84677313
  • Description: 8-Way F 64 Series, Sealed (BK)
Terminal Part Information

Terminal Type ID Terminated Lead Diagnostic Test Probe Terminal Removal Tool Service Terminal Tray Name Core Crimp Insulation Crimp
I Not Required J-35616-64B (LT BU) No Tool Required Not Required Not Required Not Required Not Required
Pin Size Color Circuit Function Terminal Type ID Option
1 0.5 WH/BU 6289 Induction Air Temperature Sensor Signal I -
2 0.5 WH/RD 3201 Throttle Inlet Absolute Pressure Sensor 5V Reference I -
3 0.5
0.5
BK/VT
WH/YE
2760
3202
Intake Air Temperature Sensor Low Reference
Throttle Inlet Absolute Pressure Sensor Low Reference
I
I
LCV
LGX
4 0.5 YE/WH 3200 Throttle Inlet Absolute Pressure Sensor Signal I -
5 0.5 VT/BU 5294 Powertrain Main Relay Fused Supply 5 I -
6 0.5 GN/WH 492 Mass Air Flow Sensor Signal I -
7 0.5
0.5
BK/WH
BK/WH
451
351
Signal Ground
Signal Ground
I
I
LCV/LGX+GMC
LGX+HOLDEN
8 0.5
0.5
BN/GY
GY/BU
4008
7564
Humidity Sensor Signal
Humidity Sensor Signal
I
I
LCV
LGX
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:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.