Buick Encore: Secondary and configurable customer controls - Description and operation
STEERING WHEEL CONTROLS DESCRIPTION AND OPERATION
Steering Wheel Controls Block Diagram
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Fig. 3: Steering Wheel Controls Block Diagram
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The steering wheel control switches duplicate the function of the primary controls of the associated component, through a network of momentary contact switches and a series of resistors. The body control module (BCM) supplies voltage to the switches and monitors the return signal. When a switch is pressed, a specific voltage drops across the resistor unique to that switch. The BCM identifies the switch selected and sends a serial data message to the component controlled by the switch, activating the feature.
This section is intended to diagnose the circuits between the BCM and the steering wheel control switches. If the primary control for the device is inoperative, refer to the appropriate section for the component the steering wheel control switch is used for.
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Sunroof
SCHEMATIC WIRING DIAGRAMS
SPECIFICATIONS
FASTENER TIGHTENING SPECIFICATIONS
Fastener Tightening Specifications
SCHEMATIC WIRING DIAGRAMS
SUNROOF WIRING SCHEMATICS (ENCORE)
Power Sunroof
SUN
Sunroof - Diagnostic information and procedures
DTC B3664: Sunroof position select switch
DIAGNOSTIC CODE INDEX
DTC B3664: SUNROOF POSITION SELECT SWITCH
Diagnostic Instructions
Perform the Diagnostic System Check - Vehicle prior to using thi
Sunroof - Repair instructions
SUNROOF AIR DEFLECTOR REPLACEMENT
Fig. 3: Sunroof Air Deflector
Sunroof Air Deflector Replacement
SUNROOF AIR DEFLECTOR COVER REPLACEMENT
Fig. 4: Sunroof Air Deflector Cover
Sunroof Air Deflecto
SEE MORE:
Dangers, Warnings, and Cautions
INTRODUCTION
Definition of danger, warning, caution, and note
The diagnosis and repair procedures in a GM Service Manual contain both
general and specific Dangers,
Warnings, Cautions, Notes or Importants. GM is dedicated to the presentation of
service information that helps
the technician to diagn
Voltage waveform samples
NOTE: This is GENERAL information. This article is not
intended to be specific to any
unique situation or individual vehicle configuration. For model-specific
information see appropriate articles where available.
EXAMPLE #1 - VOLTAGE CONTROLLED DRIVER
These two known-good waveform patterns are from
