Remote Keyless Entry System
System DescriptionPOWER SUPPLY AND GROUND
Power is supplied at all times
- to key switch terminal 3
- through 10 A fuse [No. 32, located in the fuse block (J/B) No. 2].
When the key switch is ON (key is inserted in ignition key cylinder), power is supplied
- to BCM terminal 69
- through key switch terminal 4.
When the ignition switch is ACC, power is supplied
- to BCM terminal 60
- through 10 A fuse [No. 21, located in the fuse block (J/B) No. 1]. When door switch is in OPEN position, ground is supplied
- to BCM terminal 142 (driver side), 37 (passenger side), 33 (Rear LH), 143 (Rear RH)
- through door switches terminal 1.
When door is unlocked, ground is supplied
- to driver door control unit (LCU01) terminal 6 or passenger, rear LH, RH door control unit terminal 2
- from terminal 2 of each door unlock sensor.
Electronic key signal input
- to BCM terminal 27
- through remote keyless entry receiver.
The remote keyless entry system controls operation of the
- power door lock
- hazard and horn reminder trunk lid opener
- panic alarm
- keyless power window down (open)
- auto door lock
- map lamp
BCM is connected to LCU01 as DATA LINE A-3.
OPERATING PROCEDURE
BCM can receive signals from electronic key when key switch is in OFF position (key is not in ignition key cylinder).
It then sends the signals to LCU01 as DATA LINE A-3.
POWER DOOR LOCK OPERATION
When BCM receives a LOCK signal from electronic key, BCM will then send a LOCK signal [when all door switches are OFF (all doors are closed)]
- from its terminals 67 (DATA LINE A-3)
- to driver door control unit (LCU01) terminal 8.
When an UNLOCK signal is sent from electronic key once, driver's door will be unlocked.
Then, if an UNLOCK signal is sent from electronic key again within 3 seconds, all other doors will be unlocked. For detailed description, refer to "POWER DOOR LOCK SYSTEM" .
HAZARD AND HORN REMINDER
Power is supplied at all times
- to security horn relay terminal 2
- through 10 A fuse (No. 78, located in the fuse, fusible link and relay box).
When BCM receives a LOCK or UNLOCK signal from electronic key, ground is supplied
[when specific door switch is ON (specific door is OPEN), BCM does not receive a LOCK signal (BCM receives a UNLOCK signal)]
- to security horn relay terminal 1
- through BCM terminal 127
- through body ground.
When BCM receives a LOCK or UNLOCK signal from electronic key, power is supplied
[When specific door switch is ON (specific door is open), BCM does not receive a LOCK signal.]
- to combination flasher unit terminal 6
- through BCM terminal 7. combination flasher unit and security horn relay are now engaged, and hazard warning lamps flash and security horn sounds as a reminder.
OPERATING FUNCTION OF HAZARD AND HORN REMINDER
This vehicle is set in hazard and horn mode when you first receive the vehicle.
Hazard And Horn Mode
When the LOCK button is pushed, the hazard warning lamp flashes twice and horn chirps once. When the UNLOCK button is pushed, the hazard warning lamp flashes once.
Hazard Only Mode
When the LOCK button is pushed, the hazard warning lamp flashes twice.
When the UNLOCK button is pushed, neither the hazard warning lamp nor the hone operates.
TRUNK LID OPENER OPERATION
Power is supplied at all times
- to trunk lid opener actuator terminal 1
- through 10 A fuse [No. 15, located in the fuse block (J/B) No. 1].
When a TRUNK OPEN signal is sent from electronic key without the electronic key inserted in the ignition key cylinder, if the trunk lid opener cancel switch is ON position, power is supplied
- through trunk lid opener relay
- through 10 A fuse [No. 3, located in the fuse block (J/B) No. 1].
- through trunk lid cancel switch terminals 1 and 2
- to BCM terminal 109.
Then ground is supplied
- to trunk lid opener actuator terminal 2
- through trunk lid opener relay l through body ground E42 and E62.
Then power and ground are supplied, trunk lid opener actuator opens trunk lid.
PANIC ALARM OPERATION
Remote keyless entry system activates horn and headlamps intermittently when an ALARM signal is sent from electronic key to remote keyless entry system without the electronic key inserted in the ignition key cylinder. For detailed description, refer to BL-125, "VEHICLE SECURITY (THEFT WARNING) SYSTEM" .
KEYLESS POWER WINDOW DOWN (OPEN) OPERATION
When electronic key unlock switch is turned ON with ignition switch OFF, and electronic key unlock switch is detected to be on continuously for 3 seconds, the front door LH, RH power windows are simultaneously opened.
Power window is operated to open and the operation continues as long as the electronic key unlock switch is pressed.
AUTO DOOR LOCK OPERATION
Auto lock function signal is sent for operation when any of the following signals are not sent within 5 minutes after the unlock signal is sent from the electronic key:
- when door switch is turned ON for open.
- when the key switch is turned ON.
- when the lock signal is sent from the electronic key.
MAP LAMP OPERATION
When the following conditions come:
- condition of interior lamp ill switch is DOOR position;
- door switch OFF (when all the doors are closed);
Remote keyless entry system turns on map lamp (for 30 seconds) with input of UNLOCK signal from electronic key. For detailed description, refer to "INTERIOR ROOM LAMP" . Description and Operation