Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor

Fig 1: MAF/IAT Sensor Connector End View

Courtesy of GENERAL MOTORS CORP.

MAF/IAT Sensor Connector Part Information

Connector Part Information  OEM: 15327729 Service: 88987989 Description: 5-Way F Jr-Power Timer Sealed (BK)

Terminal Part Information  Terminal/Tray: 4-964286-1/16 Core/Insulation Crimp: E/1 Release Tool/Test Probe: 12093647/J-35616-4A (PU)

MAF/IAT Sensor Connector Terminal Identification

Pin	Wire Color	Circuit No.	Function
1	TN	472	IAT Sensor Signal
2	PK	339	Ignition 1 Voltage
3	BK	2760	Low Reference
4	GY	2709	5-Volt Reference 2
5	YE	492	MAF Sensor Signal