Remote Keyless Entry
REMOTE KEYLESS ENTRY SYSTEMSchematic
System Description
INPUTS
Power is supplied at all times
- to BCM terminal 55
- through 50 A fusible link (letter M, located in the fuse and fusible link box).
- to BCM terminal 42
- through 15 A fuse [No. 22, located in the fuse block (J/B)].
- to Horn relay terminal 2
- through 15 A fuse (No. 34, located in the fuse and fusible link box).
When the key switch is ON (key is inserted in ignition key cylinder), power is supplied
- to BCM terminal 37
- through key switch terminal 1 and 2
- through 15 A fuse [No. 22, 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 15 A fuse [No. 1, located in the fuse block (J/B)].
When the front door switch (driver side) is ON (door is OPEN), ground is supplied
- to BCM terminal 62
- through front door switch (driver side) terminal 1
- through front door switch (driver side) case ground.
When the front door switch (passenger side) is ON (door is OPEN), ground is supplied
- to BCM terminal 12
- through front door switch (passenger side) terminal 1
- through front door switch (passenger side) 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
- through rear door switch LH case ground.
When the rear door switch RH is ON (door is OPEN), ground is supplied
- to BCM meter terminal 13
- through rear door switch RH terminal 1
- through rear door switch RH case ground.
When the back door switch is ON (door is open), ground is supplied
- to BCM terminal 58
- through back door closure motor (door switch) terminals 7 and 8
- through body grounds B15 and B45
Key fob signal is inputted to remote keyless entry receiver (the antenna of the system is built in remote keyless entry receiver).
- to BCM terminal 20
- from remote keyless entry system controls operation of the
The remote keyless entry system controls operation of the
- power door lock
- hazard and horn reminder
- auto door lock
- panic alarm
- keyless power window down (open)
- room lamp and key ring illumination
OPERATED PROCEDURE
Power Door Lock Operation
BCM receives a LOCK signal from key fob. BCM locks all doors with input of LOCK signal from key fob.
When an UNLOCK signal is sent from key fob once, driver's door will be unlocked.
Then, if an UNLOCK signal is sent from key fob again within 5 seconds, all other door will be unlocked.
Power door lock operation mode can be changed using "DOOR LOCK-UNLOCK SET" mode in "WORK SUPPORT" of "POWER DOOR LOCK SYSTEM".
Refer to BL-60, "CONSULT-III Function (BCM)". Remote Keyless Entry
Power door lock operation mode can be changed also on the display.
Hazard and Horn Reminder
When the doors are locked or unlocked by key fob, power is supplied to hazard warning lamp and lamp flash as follows
- LOCK operation: C mode (flash twice) or S mode (flash twice)
- UNLOCK operation: C mode (flash once) or S mode (do not flash)
BCM outputs 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
Hazard and horn reminder do not operate if any door switch is ON (any door is OPEN).
How to change hazard and horn reminder mode
With CONSULT-III
Hazard and horn reminder can be changed using "MULTI ANSWER BACK SET" mode in "WORK SUPPORT".
Refer to BL-60, "CONSULT-III Function (BCM)". Remote Keyless Entry
Without CONSULT-III
When LOCK and UNLOCK signals are sent from the key fob 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:
Auto Door Lock Operation
Auto lock function signal is sent for operation when any of the following signals are not sent within 1 minute after the unlock signal is sent from the key fob:
- when door switch is turned ON for open.
- when the key switch is turned ON.
- when the lock signal is sent from the key fob.
Auto door lock mode can be changed using "AUTO LOCK SET" mode in "WORK SUPPORT".
Refer to BL-60, "CONSULT-III Function (BCM)". Remote Keyless Entry
Auto door lock mode can be changed also on the display.
Panic Alarm Operation
When key switch is OFF (when ignition key is not inserted in key cylinder), BCM turns on and off horn and headlamp intermittently with input of PANIC ALARM signal from key fob.
The alarm automatically turns off after 25 seconds or when BCM receives any signal from key fob.
Panic alarm operation mode can be changed using "PANIC ALARM SET" mode in "WORK SUPPORT".
Refer to BL-60, "CONSULT-III Function (BCM)". Remote Keyless Entry
Keyless Power Window Down (Open) Operation
When key fob unlock switch is turned ON with ignition switch OFF, and key fob unlock 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 key fob unlock switch is pressed.
Keyless power window down operation mode can be changed using "PW DOWN SET" mode in "WORK SUPPORT".
Refer to BL-60, "CONSULT-III Function (BCM)" Remote Keyless Entry
Room Lamp and Ignition Key Ring Illumination Operation
When the following conditions come:
- condition of interior lamp switch is DOOR position;
- door switch OFF (when all the doors are closed);
Remote keyless entry system turns on interior lamp (for 30 seconds) with input of UNLOCK signal from key fob.
CAN Communication System Description
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle multiplex communication line with high data communication speed and excellent error detection ability. Many electronic control units are equipped onto a vehicle, and each control unit shares information and links with other control units during operation (not independent). In CAN communication, control units are connected with 2 communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring. Each control unit transmits/receives data but selectively reads required data only.
CAN Communication Unit
Refer to LAN-43, "CAN System Specification Chart". CAN System Specification Chart