Horn Circuit
DOOR LOCK: WIRELESS DOOR LOCK CONTROL SYSTEM: Horn Circuit
- Horn Circuit
DESCRIPTION
The multiplex network body ECU activates the horn when a panic signal is detected from the door control transmitter.
HINT
The horn for the panic alarm function can be set to OFF.
WIRING DIAGRAM
INSPECTION PROCEDURE
HINT
The horn circuit uses BEAN for communication. If there are any malfunctions in this circuit, check for DTCs in the multiplex communication system Reading and Clearing Diagnostic Trouble Codes.
PROCEDURE
1. CHECK STEERING PAD
(a) When pushing the steering pad switch, check that the vehicle horn sounds normally.
OK:
The horn sounds normally.
NG -- GO TO HORN SYSTEM
OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE