Keyless Entry: Description and Operation
System DescriptionINPUTS
Power is supplied at all times
- to BCM terminal 55
- through 50 A fusible link (letter f, located in the fuse and fusible link box).
- to BCM terminal 42
- through 10 A fuse [No. 21, located in the fuse block (J/B)].
When the ignition switch is ON, power is supplied
- to BCM terminal 37
- through key switch and key lock solenoid terminals 3 and 4
- through 10 A fuse [No. 21, located in the fuse block (J/B)].
When the ignition switch is ACC or ON, power is supplied
- to BCM terminal 11
- through 10 A fuse [No. 6, located in the fuse block (J/B)].
When the ignition switch is ON or START, power is supplied
- to BCM terminal 38
- through 10 A fuse [No. 1, located in the fuse block (J/B)].
Ground is supplied
- to BCM terminal 52
- through body grounds M57, M61 and M79.
When the front door switch LH is ON (door is OPEN), ground is supplied
- to BCM terminal 62
- through front door switch LH terminal 2
- to front door switch LH case ground.
When the front door switch RH is ON (door is OPEN), ground is supplied
- to BCM terminal 12
- through front door switch RH terminal 2
- to front door switch RH case ground.
When the rear door switch LH is ON (door is OPEN), ground is supplied
- to BCM terminal 63
- through rear door switch LH terminal 1
- to rear door switch LH case ground.
When the rear door switch RH is ON (door is OPEN), ground is supplied
- to BCM terminal 13
- through rear door switch RH terminal 1
- to rear door switch RH case ground.
Keyfob signal is inputted to BCM (the antenna of the system is combined with BCM).
The remote keyless entry system controls operation of the
- power door lock
- trunk lid opener
- interior lamp and step lamps
- panic alarm
- hazard and horn reminder
- keyless power window down (open)
- auto door lock operation
OPERATING PROCEDURE
Power Door Lock Operation
BCM receives a LOCK signal from keyfob. BCM locks all doors with input of LOCK signal from keyfob. When an UNLOCK signal is sent from keyfob once, driver's door will be unlocked.
Then, if an UNLOCK signal is sent from keyfob again within 5 seconds, all other doors will be unlocked.
Hazard and Horn Reminder
BCM output to IPDM E/R for horn reminder signal as DATA LINE (CAN-H line and CAN-L line).
The hazard and horn reminder has C mode (horn chirp mode) and S mode (non-horn chirp mode).
Operating function of hazard and horn reminder
How to change hazard and horn reminder mode
With CONSULT-II
Hazard and horn reminder can be changed using "WORK SUPPORT" mode in "MULTI ANSWER BACK SET".
Without CONSULT-II
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 the following input signals are both supplied:
- door switch CLOSED (when all the doors are closed);
- interior lamp switch is in DOOR position.
Remote keyless entry system turns on interior lamp and ignition illumination (for 30 seconds) with input of UNLOCK signal from keyfob.
For detailed description, refer to "ROOM LAMP TIMER OPERATION".
Panic Alarm Operation
When key switch is OFF (when ignition key is not inserted in key cylinder), remote keyless entry system turns on and off horn and headlamp intermittently with input of PANIC ALARM signal from keyfob.
The alarm automatically turns off after 25 seconds or when BCM receives any signal from keyfob.
For detailed description, refer to "VEHICLE SECURITY (THEFT WARNING) SYSTEM".
Trunk Lid Opener Operation
When a TRUNK OPEN signal is sent with key OFF (ignition key removed from key cylinder) from keyfob, power is supplied
- through BCM terminal 57
- to trunk lamp switch and trunk release solenoid terminal 1.
When power and ground are supplied, trunk lamp switch and trunk release solenoid opens trunk lid.
Keyless Power Window Down (open) Operation
When keyfob unlock switch is turned ON with ignition switch OFF, and the switch is detected to be on continuously for 3 seconds, the driver's door and passenger's door power windows are simultaneously opened. Power window is operated to open and the operation continues as long as the keyfob unlock switch is pressed.
Auto Door Lock Operation
Auto lock function signal is sent when any of the following signals are not sent after the unlock signal is sent from the keyfob:
- when door switch is turned ON for open.
- when the key switch is turned ON.
- when any signal is sent from the keyfob.
Auto door lock mode can be changed using "WORK SUPPORT" mode in "AUTO LOCK SET". Refer to "Work Support".
CAN Communication System Description
Refer to Information Bus.