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Home >> Honda >> 2014 >> Fit >> Repair and Diagnosis >> External Pages >> Different car >> Section 415 (Integrated Control Systems - Testing & Troubleshooting) >> Multiplex Integrated Control System Description >> Functional Control >> Security Alarm System
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Security Alarm System

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2020 Honda Fit, 2019 Honda Fit, 2018 Honda Fit, 2017 Honda Fit, and 2016 Honda Fit. However, it is still accessible from the selected car via links, so may be relevant.

The MICU controls the lighting system and the horn based on inputs from each switch and B-CAN data.

  Input Output
MICU IG1 power supply

Key switch signal

Audio switch

Driver's door switch

Front passenger's door switch

Left rear door switch

Right rear door switch

Tailgate latch switch

Driver's door key cylinder switch signal (LOCK/UNLOCK)

Driver's door lock knob switch signal (UNLOCK)

Front passenger's door lock knob switch signal (UNLOCK)

Left rear door lock knob switch signal (UNLOCK)

Right rear door lock knob switch signal (UNLOCK)

Security hood switch

Headlights (low beam)

Parking lights

Taillights

Horn relay

B-CAN Keyless signal

Door lock signal

Keyless access key signal

MICU message (SET1)

MICU message (SET2)

ALARM message (ACTION)

ALARM message (HORN)

ALARM message (H/L LOW)

ALARM message (PARKING LIGHT)

ALARM message (CYCLE)