Remote Keyless Entry System
REMOTE KEYLESS ENTRY SYSTEMSystem Description
POWER SUPPLY AND GROUND
BCM is connected to LCU01 as DATA LINE A-3.
Power is supplied at all times
- through 10A fuse [No. 8, located in the fuse block (J/B)]
- to key switch terminal 3.
When the key switch is in ON position (key is inserted in ignition key cylinder), power is supplied
- through key switch terminal 4
- to BCM terminal 69 When any of the four door switches is in OPEN position, ground is supplied
- to BCM terminal 33, 37, 142, 143
- through door switches body grounds.
When a front LH door is unlocked, driver door LCU terminal 6 receives a ground signal from terminal 2 of front LH door unlock sensor.
When a front RH, rear LH or RH door is unlocked, each door control unit terminal 13 receiver a ground signal from terminal 2 of each door unlock sensor.
Electronic key signal input
- through multi remote control receiver
- to BCM terminal 27
The remote keyless entry system controls operation of the
- power door lock
- trunk lid opener
- panic alarm
- hazard and horn reminder
OPERATING PROCEDURE
BCM can receive signals from electronic key when key switch is in OFF position (key is not in 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
- from its terminals 67 (DATA LINE A-3)
- to front LH door control unit (LCU) 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 "System Description".
HAZARD AND HORN REMINDER
Power is supplied at all times
- through 15A fuse (No. 56, located in the fusible link and fuse box)
- to horn relay terminal 2.
When BCM receives a LOCK or UNLOCK signal from electronic key, ground is supplied
- to combination flasher unit relay terminal 6
- through BCM terminal 7 and
- to horn relay terminal 1
- through BCM terminal 127 combination flasher unit and horn relay are now engaged, and hazard warning lamps flash and horn sounds as a reminder.)
OPERATING FUNCTION OF HAZARD AND HORN REMINDER
This vehicle is set in hazard indicator and horn mode when you first receive the vehicle.
Hazard Indicator And Horn Mode
When the LOCK button is pushed, the hazard indicator flashes twice and horn chirps once. When the UNLOCK button is pushed, the hazard indicator flashes once.
Hazard Indicator Only Mode
When the LOCK button is pushed, the hazard indicator flashes twice.
When the UNLOCK button is pushed, neither the hazard indicator nor the hone operates.
TRUNK LID OPENER OPERATION
Power is supplied at all times
- through 20A fuse [No. 15, located in the fuse block (J/B)]
- to trunk lid opener actuator terminal 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 in the ON position, ground is supplied
- through 10A fuse [No.3, located in the fuse block (J/B)]
- to trunk lid opener relay
- through trunk lid cancel switch terminals 1 and 2, and
- through BCM terminal 109 Then power and ground are supplied, trunk lid opener actuator opens trunk lid.
PANIC ALARM OPERATION
Remote keyless entry system activates horn and head lamps 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 "VEHICLE SECURITY (THEFT WARNING) SYSTEM".