Barometric Pressure (BARO) Sensor (LZ1)

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2011 GMC Yukon XL, 2011 GMC Yukon, 2011 Chevrolet Tahoe, 2011 Chevrolet Suburban, and 2011 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Barometric Pressure (BARO) Sensor (LZ1) Connector End View

Courtesy of GENERAL MOTORS CORP.

Pin	Wire	Circuit	Function
1	0.8 GY	2704	5-Volt Reference
2	0.8 OG/BK	469	Low Reference
3	0.8 L-GN	432	Barometric Pressure Sensor Signal

Connector Part Information

Harness Type: Engine
OEM Connector: 13639747
Service Connector: 19181248
Description: 3-Way F 2.8 Timer Series, Sealed (BK)

Terminal Part Information

Terminated Lead: Service by Connector Assembly- 19181248
Release Tool: J-38125-36
Diagnostic Test Probe: J-35616-35 (VT)
Terminal/Tray: 4-964286-1/16
Core/Insulation Crimp: E/1