Buick Encore: Horns - Description and operation
HORNS SYSTEM DESCRIPTION AND OPERATION
System Description
The horn system consists of the following components:
- HORN fuse
- Underhood fuse block (contains PCB horn relay)
- Horn switch
- Horn-low note
- Horn-high note
- Body control module (BCM)
14 Horns Block Diagram
Fig. 6: 14 Horns Block Diagram
System Operation
The vehicle horn system is activated under the following conditions:
- When the horn switch is depressed
- The BCM commands the horns ON under any of the following conditions:
- When the content theft deterrent system detects a vehicle intrusion-For
further information refer to
Theft Systems Description and Operation .
- When the panic button is depressed on the remote control door lock
transmitter-For further
information refer to Keyless Entry System Description and Operation .
- When the keyless entry system is used to lock the vehicle, a horn chirp
may sound to notify the
driver that the vehicle has been locked. The notification feature may be
enabled or disabled through
personalization. For further information refer to Keyless Entry System
Description and
Operation .
- When the OnStar system is used to sound the horns if equipped-For
further information, refer to
OnStar Description and Operation
Circuit Operation
Battery positive voltage is applied at all times to the horn relay coil and
the horn relay switch. Pressing either of
the horn switches applies ground to the horn relay control circuit. The BCM may
also apply ground to the horn
relay control circuit as described above. When the horn relay control circuit is
grounded, the horn relay is
energized and battery positive voltage is applied to the horns through the horn
control circuit. The horns sound
as long as ground is applied to the horn relay control circuit.
READ NEXT:
Schematic wiring diagrams
IMMOBILIZER WIRING SCHEMATICS (ENCORE)
Immobilzer System
Fig. 1: Immobilzer System
IMMOBILIZER WIRING SCHEMATICS (Encore)
Immobilzer System
Fig. 2: Immobilzer System
DTC B2955: Security sensor data circuit
DIAGNOSTIC CODE INDEX
DTC B2955: SECURITY SENSOR DATA CIRCUIT
Diagnostic Instructions
Perform the Diagnostic System Check - Vehicle prior to using this
THEFT DETERRENT MODULE REPLACEMENT (ENCORE)
Fig. 3: Theft Deterrent Module (Encore)
Theft Deterrent Module Replacement (Encore)
THEFT DETERRENT MODULE REPLACEMENT (Encore)
Fig. 4: Theft Deterren
SEE MORE:
SPECIFICATIONS
FASTENER TIGHTENING SPECIFICATIONS
Fastener Tightening Specifications
Adhesives, Fluids, Lubricants, and Sealers
SCHEMATIC WIRING DIAGRAMS
INSIDE REARVIEW MIRROR WIRING SCHEMATICS (ENCORE)
Inside Review Mirror
Fig. 1: Inside Review Mirror
INSIDE REARVIEW MIRROR WIRING SCHEMATICS
SPECIFICATIONS
APPROXIMATE FLUID CAPACITIES
The following approximate capacities are given in English and metric
conversions. All capacities are
approximate. When adding, be sure to fill to the approximate level as
recommended in this manual. Recheck
fluid level after filling.
FLUID AND LUBRICAN