Buick Encore: Data Communications
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DATA COMMUNICATION WIRING SCHEMATICS (ENCORE)
Power, Ground, and Low Speed GMLAN
Fig. 1: Power, Ground, and Low Speed GMLAN
High Speed GMLAN Bus (1 of 2)
Fig. 2: High Speed GMLAN Bus (1 of 2)
High
DIAGNOSTIC CODE INDEX
CONTROL MODULE U CODE LIST
This list includes all Data Communications related U-code DTCs in
alphanumeric order with descriptors for all
devices. Not all DTCs listed will be
BODY CONTROL SYSTEM DESCRIPTION AND OPERATION
The body control system consists of the body control module (BCM),
communications, and various input and
outputs. Some inputs, outputs and messages requi
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DTC P0502 OR P0503: Vehicle speed sensor (VSS)
DIAGNOSTIC CODE INDEX
DTC P0502 OR P0503: VEHICLE SPEED SENSOR (VSS)
Diagnostic Instructions
Perform the Diagnostic System Check - Vehicle prior to using this
diagnostic procedure.
Review Strategy Based Diagnosis for an overview of the diagnostic
Onstar description and operation
This OnStar system consists of the following components:
Telematics communication interface control module
OnStar three button assembly
Microphone
Cellular antenna
Navigation antenna
Bluetooth antenna (If equipped)
Back up battery (If equipped)
This system a