Keyless Entry: Description and Operation
System DescriptionPOWER SUPPLY AND GROUND
Power is supplied at all times
- through 30 A fusible link [letter f located in the fuse and fusible link box (with KA24DE)] or
- through 40 A fusible link [letter f located in the fuse and fusible link box (with VG33E and VG33ER)]
- to circuit breaker terminal +
- through circuit breaker terminal -
- to smart entrance control unit terminal 51.
With the ignition switch in the ACC or ON position, power is supplied
- through 7.5 A fuse [No.20, located in the fuse block (J/B)]
- to smart entrance control unit terminal 26.
Power is supplied at all times
- through 7.5 A fuse [No.28, located in the fuse block (J/B)]
- to key switch terminal 1 and
- to smart entrance control unit terminal 49.
Power is supplied at all times
- through 15 A fuse (No.37, located in the fuse and fusible link box)
- to vehicle security lamp relay terminal 7.
Power is supplied at all times
- through 15 A fuse (No.38, located in the fuse and fusible link box)
- to vehicle security lamp relay terminal 5.
Power is supplied at all times
- through 15 A fuse (No.32, located in the fuse and fusible link box)
- to horn relay terminal 2.
Ground is supplied
- to smart entrance control unit terminals 43 and 64
- through body grounds M14 and M68.
INPUTS
With the key switch in the INSERTED (key is in ignition key cylinder) position, power is supplied
- through key switch terminal 2
- to smart entrance control unit terminal 25.
With front door LH open, ground is supplied
- to smart entrance control unit terminal 1
- through front door switch LH terminal 2
- through front door switch LH terminal 3
- through body grounds M14 and M68.
With front door RH open, ground is supplied
- to smart entrance control unit terminal 2
- through front door switch RH terminal +.
With rear door LH or RH (Crew Cab) open, ground is supplied
- to smart entrance control unit terminal 3 (with vehicle security system), or
- to smart entrance control unit terminal 2 (without vehicle security system)
- through rear door switch LH or RH terminal +.
Keyfob signal input
- through internal antenna.
The remote keyless entry system controls operation of the
- power door locks
- interior lamp.
- panic alarm
- hazard and horn reminder.
OPERATION PROCEDURE
Power Door Lock Operation
When the keyfob sends a LOCK signal with the key switch in the REMOVED position (key is not in ignition key cylinder), the smart entrance control unit locks all doors.
When the keyfob sends an UNLOCK signal once, the smart entrance control unit unlocks the front door LH. Then, if the keyfob sends another UNLOCK signal within 5 seconds, the smart entrance control unit unlocks all other doors.
Key Reminder
When performing a door locking operation using either the main power window and door lock/unlock switch, the door lock/unlock switch RH, the front door LH lock knob or a keyfob, all the doors will lock and then the front door LH will immediately unlock if the
- key switch is in INSERTED position (key is in ignition key cylinder) and
- ignition switch is in the OFF position
- and either front door switch LH or RH is in OPEN position (door is open).
Hazard and Horn Reminder
When smart entrance control unit receives LOCK or UNLOCK signal from keyfob with all doors closed, power is supplied
- through smart entrance control unit terminals 47 and 48
- to the hazard warning lamps. Ground is supplied
- to horn relay terminal 2
- through smart entrance control unit terminal 42.
Horn relay is now energized, and hazard warning lamp flashes and horn sounds as a reminder. The hazard and horn reminder has a horn chirp mode (C mode) and a non-horn chirp mode (S mode).
Operating function of hazard and horn reminder
How to change hazard and horn reminder mode
When LOCK and UNLOCK signals are sent from the keyfob for more than 2 seconds at the same time, the hazard and horn reminder mode is changed and hazard warning lamp flashes and horn sounds as follows:
Interior Lamp Operation
When all door switches are in CLOSED position, the remote keyless entry system turns on the room lamp for 30 seconds with input of UNLOCK signal from a keyfob.
Panic Alarm Operation
When keyfob sends a PANIC ALARM signal with key switch in the REMOVED (key is not in ignition key cylinder) position, remote keyless entry system operates the horn and headlamps intermittently.
For detailed description, refer to "VEHICLE SECURITY (THEFT WARNING) SYSTEM".
Auto Relock Operation
All the doors will automatically lock again unless any one of the doors is opened or ignition switch is turned from OFF to ON within 5 minutes after the keyfob unlocks all the doors under the following conditions
- key switch is in INSERTED position (key is in ignition key cylinder) and
- ignition switch is in the OFF position and
- all door switches are in CLOSED position (doors are closed)