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.
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IMMOBILIZER SYSTEM DESCRIPTION - SYSTEM DIAGRAM
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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.
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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.
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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
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"H", "I", "K", "L", "M", "N"
"H"
HAC
High Altitude Compensator
HAFS
Heated Air Fuel Ratio Sensor
HAI
Hot Air Intake
HAS
High Altitude System
HC
Hydrocarbons
HCAC-VSV
Hydrocarbon Absorber Catalyst Vacuum Switching Valve
HDC
Heavy Duty Cooling
HDC-CTO
HDC Coolant Temperature Override
HFM-SFI
Hot Film Engine Management SFI
HIC
Hot
Changing the Engine Oil and Oil Filter
You must change the engine oil and oil filter regularly in order to maintain
the
engine's lubrication. The engine may be damaged if they are not changed
regularly.
Change the oil and filter in accordance with the Maintenance Minder message on
the information display.
1. Run the engine until it re
