The vehicle’s keys have built-in transponder chips that prevent the engine from starting if the key has not been previously registered in the vehicle’s on-board computer.
Never leave the keys inside the vehicle when you leave the vehicle.

Vehicles with smart key system:
The indicator light flashes after the “ENGINE START STOP” switch has been turned off to indicate that the system is operating.
The indicator light stops flashing after the “ENGINE START STOP” switch has been turned to ACCESSORY or IGNITION ON mode to indicate that the system has been canceled.
Vehicles without smart key system:
The indicator light flashes after the key has been removed from the engine switch to indicate that the system is operating.
The indicator light stops flashing after the registered key has been inserted into the engine switch to indicate that the system has been canceled.
- System maintenance
The vehicle has a maintenance-free type engine immobilizer system.
- Conditions that may cause the system to malfunction
• If the key is in contact with a metallic object.
• If the key is in close proximity to or touching a key to the security system (key with a built-in transponder chip) of another vehicle.
- Certifications for the engine immobilizer system
• For vehicles sold in the U.S.A.
►Vehicles with smart key system FCC ID: NI4TMIMB-1
►Vehicles without smart key system FCC ID: MOZRI-21BTY
NOTE:
This device complies with Part 15 of the FCC Rules. Operation is subject to the
following two conditions: (1) this device may not cause harmful interference, and
(2) this device must accept any interference received, including interference that
may cause undesired operation.
FCC WARNING:
Changes or modifications not expressly approved by the party responsible for compliance
could void the user’s authority to operate the equipment.
• For vehicles sold in Canada Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device.
NOTICE
- To ensure the system operates correctly
Do not modify or remove the system. If modified or removed, the proper operation of the system cannot be guaranteed.
AlarmRemoval
REMOVAL
PROCEDURE
1. REMOVE BRAKE BOOSTER ASSEMBLY
HINT:
Refer to the instructions for Removal of the brake booster assembly (See page
).
2. REMOVE HEADLIGHT LEVELING ECU ASSEMBLY (w/ HID Headlight System)
3. REMOVE STOP LIGHT SWITCH ASSEMBLY
4. ...
Rear Height Control Sensor (B241A)
DESCRIPTION
The headlight leveling ECU assembly receives signals indicating the height of
the vehicle from the rear height control sensor sub-assembly RH.
DTC No.
DTC Detecting Condition
Trouble Area
B241A
...
Engine compartment
► 2GR-FE engine
1. Engine coolant reservoir
2. Engine oil filler cap
3. Engine oil level dipstick
4. Brake fluid reservoir
5. Battery
6. Fuse box
7. Electric cooling fans
8. Condenser
9. Radiator
10.Washer fluid tank
► 1AR-FE engine
...