LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Chevrolet >> 2009 >> Traverse LS, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 267 (Data Communication System) >> Diagnostic Information and Procedures >> DTC U18A2: Lost Communication with Fuel Pump Driver Control Module >> Circuit/System Description
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Circuit/System Description

WARNING: This page is about a different car, the 2016 GMC Acadia, 2016 Chevrolet Traverse, and 2016 Buick Enclave. However, it is still accessible from the selected car via links, so may be relevant.

Devices connected to the serial data circuits monitor for serial data communications during normal vehicle operation. Operating information and commands are exchanged among the devices. The devices have prerecorded information about what messages are needed to be exchanged on the serial data circuits, for each virtual network. The messages are supervised and also, some periodic messages are used by the receiver device as an availability indication of the transmitter device. Each message contains the identification number of the transmitter device.

scientia non olet · About LEMON Manuals