Honda HR-V: Immobilizer System Description - Overview
An immobilizer system adds a second electronic layer of security to the vehicle. If the key matches mechanically, but the electronic check does not match, the engine control computer suspends fuel delivery and shuts down the engine. Refer to the keyless remote system description for assistance, because the immobilizer function is merged into the keyless remote system when a vehicle has the keyless remote system.
.png)
.png)
.png)
IMMOBILIZER SYSTEM DESCRIPTION - SYSTEM DIAGRAM
.png)
IMMOBILIZER SYSTEM DESCRIPTION - CONTROL/FUNCTION
Immobilizer Function
The system provides mutual authentication between the immobilizer-keyless control unit, the PCM, and the MICU when turning the vehicle to the ON mode. The engine stays running after the engine start-up if the correct key is inserted.
.png)
IMMOBILIZER SYSTEM DESCRIPTION - COMPONENTS
Immobilizer Indicator
The immobilizer system turns on the indicator light after the ignition system enters the vehicle ON mode and then starts the authentication process. The indicator light comes off after the control unit confirms the chip code is correct. The indicator light in this step tells an abnormality in the system, or success/failure of the key authentication.
Ignition Key
Vehicles equipped with the immobilizer system have an identification marking on the mechanical key. Consider this identification marking as a proof of the vehicle having the immobilizer system.
READ NEXT:
Keyless Access System Description - Components
LF (Low Frequency) Antennas
The front interior, rear interior, driver's door, and front passenger's door
LF antennas send the signals to the
remote inside and outside of the vehicle.
Door Touch Senso
Keyless Access System Description - Control/Function
Smart Entry Function
The keyless access control unit detects the input signal of the door outer
handle touch sensor or the outer handle
lock switch, and authenticates 2-way communication with the rem
Keyless/Power Door Locks/Security System Description - Components
Door Lock Switch
The door lock switch is integrated into one unit to the power window master
switch.
Door Lock Knob Switch/Door Lock Actuator/Driver's Door Key Cylinder Switch
The door lock knob swit
SEE MORE:
Keyless Buzzer Circuit Troubleshooting
Testing
1. Open wire check (GND line):
Turn the vehicle to the OFF (LOCK) mode.
Disconnect the following connector.
Keyless buzzer 3P connector
Check for continuity between test points 1 and 2.
Is there continuity?
YES
The GND wire is OK. Go to step 2.
NO
Repair an open or high resistance i
Heating and Cooling System
Using Vents, Heating and A/C
â– Passenger Side Vents
Three separate front passenger side air vents allow for different air flow
rates
through the vehicle. Passengers can separately:
Adjust each vent to optimize airflow
throughout the vehicle.
Close individual vents to adjust passenger
comf
