Function, structure, operation of security and locks control (Wireless access module[Hi-version with Passive entry and start system])

The wireless access module is classified into 3 versions depending on the vehicle equipped system.

Function	Wireless Access Module
	Hi-version	Mid-version	Lo-version
Passive entry and start system	O	-	-
Keyless entry system	O	O	-
Immobilizer	O	△	O
Tire pressure monitoring system	O	O	-
Emergency	O	-	-
Power mode switching	O	-	-
Battery protection	O	-	-
Warning	O	O	O
Customize	O	-	-

This chapter describes the wireless access module of the Hi-version (passive entry and start system).

Refer to Function, structure, operation of tire pressure monitoring system for the details on the tire pressure monitoring functions.

Refer to "232.Tire Pressure Monitoring System 45B.Maintenance Information function, structure, operation of tire pressure monitoring system".

For wireless access module Hi-version equipped models, if the electronic key is carried, it is possible to lock/unlock doors and start the engine without inserting a mechanical key. The Hi-version consists of the following components and controls the passive entry and start system function, keyless entry function, and immobilizer function.

1. Passive entry and start system function

With the electronic key within 80 cm (32 in) of the outside handle, the doors will lock/unlock when the outside handle request switch is pressed. Locking and unlocking the doors using the passive entry and start system function is only possible with the power mode (ignition switch) OFF.
If the outside handle request switch is pressed, the wireless access module sends radio signals from the external antenna to the electronic key. After receiving these radio signals, the electronic key will send radio signals to the receiver in the wireless access module. When the wireless access module receives radio signals, it outputs locking or unlocking command to the BCM. The BCM forces the door lock actuator to operate, locking/unlocking the door.

Legend

When the doors are locked by request switch operation, the following answerback operation is performed.

When the doors are unlocked by request switch operation, the following answerback operation is performed.

2. Welcome light/walk away door lock function

The wireless access module communicates with the electronic key within the range of the following detection area B via the external antenna in order to detect that the driver with the electronic key comes close to or goes away from the vehicle. The wireless access module uses this communication to control the following functions.

Legend

1) Welcome light function

When the wireless access module detects that the driver enters the detection area with the electronic key, it commands the BCM to illuminate the dome light for 30 seconds.

<Operating preconditions>

<Operating conditions>

<Deactivation/non-operating conditions>

2) Walk away door lock function

When the wireless access module detects that the driver closes the door with the electronic key from outside the vehicle but moves away from the detection area without locking, it outputs an alarm by the external buzzer and a locking command to the BCM. The BCM locks the doors through operation of the door lock actuator.

<Operating preconditions>

<Operating conditions>

<Stop conditions>

<Walk away door lock warning>

If the function does not operate properly, the wireless access module sounds the external buzzer 10 times.

Locking or unlocking of the doors is possible using the lock button or unlock button on the electronic key within the range from approximately 20 m (approximately 66 ft) to maximum approximately 50 m (approximately 164 ft) from the center of the vehicle.
If the lock button or unlock button on the electronic key is pressed, the electronic key sends radio signals to the receiver in the wireless access module. When the wireless access module receives radio signals, it outputs a locking or unlocking command to the BCM. The BCM activates the door lock actuator, locking/unlocking the doors.

Legend

The following functions will operate when the lock button on the electronic key is pressed.

The following functions will operate when the unlock button on the electronic key is pressed.

1. Selective unlock function

The selective unlock function is a function that unlocks the doors in steps depending on the number of times the driver performs an unlocking operation from outside the vehicle. When the wireless access module detects the first unlocking operation, it sends the command to unlock only the driver-side door to the BCM. Furthermore, if the second unlocking operation is detected within 3 seconds after the first unlocking operation, it sends the command to unlock all the doors other than the driver-side door to the BCM.
Also, if the request switch is pressed to perform the second unlock operation after 3 seconds or more passes from the first unlock operation, the wireless access module sends the command to lock all the doors to the BCM. If the unlock button of the electronic key is pressed to perform the second unlock operation after 3 seconds or more passes from the first unlock operation, the wireless access module sends the command to unlock only the driver-side door again to the BCM.

<Activation preconditions>

<Operating conditions>

The engine is started by operating the engine start/stop button when the electronic key is in the vehicle. Unless the electronic key is authenticated by the wireless access module and ECM, the engine cannot be started.
When the engine start/stop button is pressed, the wireless access module sends radio signals from the center in-vehicle antenna to the electronic key. After receiving these radio signals, the electronic key will send radio signals to the receiver in the wireless access module. When the wireless access module receives radio signals, it starts authentication with the electronic key. When authentication is complete, the wireless access module starts authentication with the steering lock assembly. When authentication is complete, the steering wheel lock is unlocked.
The wireless access module starts authentication with the ECM and the starter ON output when the power mode is turned ON. When authentication is complete, the ECM sends the starter ON permission signal and the wireless access module starts the engine.

1. Engine startup condition

The engine can be started by operating the engine start/stop button for the following.

M/T models

A/T models

Legend

2. Passive entry and start system authentication by transponder (electronic key)

If starting the engine becomes impossible for some reason (drained electronic key battery, etc.), place the electronic key with the built-in transponder near the engine start/stop button and authenticate with the wireless access module, then press the engine start/stop button to start the engine. When the engine is started using the transponder, authentication is performed between the transponder and the wireless access module, and between the wireless access module and the ECM.

1. Emergency stop function

The engine can be stopped during start-up by performing either of the following operations.

2. Emergency starting function

The engine may be started by operating the engine start/stop button for the following.

M/T models

A/T models

The mode is switched as shown in the following diagram by operating the engine start/stop button on each operation.

1. Remote engine start function (A/T models)

The remote engine start is possible by pressing the remote engine start button for 1 second within 5 seconds after operating the lock button on the electronic key within the range from approximately 20 m (approximately 66 ft) to maximum approximately 50 m (approximately 164 ft) from the center of the vehicle. Advance engine warm-up and vehicle temperature adjustment by the air conditioner can be performed for a predetermined length of time. For engine start using the remote engine start, the number and time are counted in the wireless access module. The function can be used up to 3 consecutive times including extension operation. Engine startup and extension operation are inhibited for a third time or more. The counts are reset by performing a normal engine startup, and the function can be used again. The remote engine start function operates as follows.

1) Remote engine start button operation

The remote engine start request can be sent to the wireless access module by pressing the remote engine start button for 1 second within 5 seconds after pressing the lock button on the electronic key within the operating range of the function. When the wireless access module receives a request via a built-in receiver, it starts the precondition check.

2) Precondition check

The wireless access module verifies that the following preconditions are met before starting the engine by the remote engine start function. The remote engine start does not function when any one is outside the preconditions.

When 1 second has passed after the precondition was met, the external buzzer sounds once and the hazard warning light flashes once to notify the surrounding area.

3) POWER MODE ON

The wireless access module turns ON the power mode to start the engine and supplies power to each device, ECM, instrument panel cluster, etc.
At this time, the wireless access module communicates with the ECM via CAN communication to authenticate. In addition, it receives the signals such as an engine speed signal and vehicle speed signal.

4) Start the engine.

The wireless access module sends the starter ON output to start the engine for a predetermined length of time. After starting the engine, the wireless access module sounds the external buzzer 3 times and flashes the hazard warning lights 3 times to notify the surrounding area of the engine startup. "REMOTE ENGINE START MODE" is displayed on the MID in the instrument panel cluster for 2 seconds when the engine is started.

The engine is stopped when the following is detected while the engine is started using the remote engine start function.

5) Engine stopped

When the set time have passed or deviated from the conditions, the wireless access module turns OFF the power mode and stops the engine.

If 60 minutes or more have passed in ACC, the power mode is turned OFF in order to protect the battery.

Under the following conditions, the wireless access module will issue a warning using the MID and generate a warning sound from the buzzer embedded in the instrument panel cluster and from the external buzzer.

Warning and MID	Buzzer pattern	Condition
No electronic key	Short repeated beeps (external buzzer)	If locking of an unlocked door is attempted with the electronic key not within operating range for locking and unlocking the doors.
	Short repeated beeps (in-vehicle buzzer)	If the electronic key is carried outside the vehicle and then the doors are closed with the power mode in "ACC" or "ON".
	Short repeated beeps (external buzzer)
	Three repeated beeps (in-vehicle buzzer)	If the power mode is "OFF" and the engine start/stop button is pushed with the electronic key not within operating range for starting the engine.
Steering wheel lock not released	Three repeated beeps (in-vehicle buzzer)	If the steering wheel lock is not released even though the engine start/stop button is pushed. (The indicator of the engine start/stop button flashes in green.)
Door open	Short repeated beeps (external buzzer)	If door locking is attempted by pressing the request switch on the door handle or the lock button on the electronic key when the doors are open.
Shift position (Automatic transmission model)	Continuous beep (external buzzer)	If the electronic key is carried outside the vehicle and then the doors are closed with the power mode in the "OFF" and the selector lever in a position other than "P".
	Short repeated beeps (in-vehicle buzzer)	If the selector lever is moved to a position other than "P" with the driver side door open.
	Short beep (external buzzer)	If door locking is attempted by pressing the push buttons on the driver side door handle or electronic key with the selector lever in a position other than "P".
	Three repeated beeps (in-vehicle buzzer)	If starting of the engine is attempted by pushing the engine start/stop button with the selector lever in a position other than "P" or "N".
	Three repeated beeps (in-vehicle buzzer)	If an attempt to switch the power mode from "ON" to "OFF" is made with the selector lever in a position other than "P".
Shift position (Manual transmission model)	Three repeated beeps (in-vehicle buzzer)	If starting of the engine is attempted by pushing the engine start/stop button with the gearshift lever in a position other than "N".
Accessory mode	Short repeated beeps (in-vehicle buzzer)	If the driver side door is opened with the power mode in "ACC". (The indicator of the engine start/stop button illuminates in amber.)
	-	This message appears on the display when the power mode is in "ACC". (The indicator of the engine start/stop button illuminates in amber.)
Put electronic key close to start button	-	This message appears on the display when the electronic key battery goes flat. (The indicator of the engine start/stop button flashes in amber.)
Pre glowing Please wait	-	Before starting the engine, the starter output inhibition signal from the ECM is received by controlling the preheating start. (Engine start/stop button indicator illuminates in amber.)
Turn off the power	Short beep (external buzzer)	If door locking is attempted by pressing the push button on the door handle or electronic key with the power mode in "ON" or "ACC".
Low battery Electronic key	Three repeated beeps (in-vehicle buzzer)	If the battery voltage of the electronic key is low when the power mode is switched from "ON" to "OFF" (or "ACC").
Power management system	Three repeated beeps (in-vehicle buzzer)	If an error occurs to the power management system when the engine start/stop button is pushed.
Steering wheel lock system	Three repeated beeps (in-vehicle buzzer)	If an error occurs to the steering wheel lock system when the engine start/stop button is pushed.
Check engine hood	Short beep (external buzzer)	If door locking is attempted by pressing the push button on the driver side door handle or electronic key when the engine hood is open.
Lockout prevention (No multi-display warning)	Short repeated beeps (external buzzer)	If vehicle locking is attempted by pressing the push button on the driver side door handle when the electronic key is within operating range for starting the engine.
Key left prevention (No multi-display warning)	Short repeated beeps (external buzzer)	When a door handle is used to do a lock operation while the key is inside the vehicle.
Check system	Three repeated beeps (in-vehicle buzzer) or Continuous beep (in-vehicle buzzer)	If the engine start/stop button is pressed when an error occurs in the system related to the wireless access module (WAM). (A buzzer sound varies depending on the error state.)
	Short beep (external buzzer) or Continuous beep (external buzzer)	If door locking is attempted by pressing the push button on the driver side door handle when an error occurs in the system related to the wireless access module (WAM). (A buzzer sound varies depending on the error state.)

1. Function setting using MID

The following function settings can be changed using the MID user customization function.

Function	Display titles of the setting items	The details of the function	Display titles of the options	Option details	Default
Passive entry and start system	Communication mode	Communication ON/OFF used in the passive entry and start system	Radio ON	Passive entry and start system function ON	O
			Radio OFF	Passive entry and start system function OFF *Starting the engine is possible only by the transponder authentication (holding the electronic key over the engine start/stop button)
	Walk away lock	A function to lock the doors when the driver walks away from the vehicle with the electronic key	Enable	The function is ON.	O
			Disable	The function is OFF.
	Answerback chime	Setting of the external buzzer volume when the answer back is in operation	Disable	External buzzer OFF
			Min	Volume: small
			Mid	Volume: medium
			Max	Volume: large	O
	Welcome light	A function to illuminate the dome light when the driver with the electronic key approaches the vehicle	Enable	The function is ON.
			Disable	The function is OFF.	O
	Walk away lock chime	A function to sound an external buzzer when the walk away door lock does not operate normally	Enable	The function is ON.
			Disable	The function is OFF.	O
	Driver door select unlock	A function that unlocks the doors in steps	Enable	The function is ON.	O
			Disable	The function is OFF.
Remote engine start	Remote start idle time	Setting of idling time after engine start by remote engine start	Disable	The function is OFF.
			Min	3-minute idling
			Mid	5-minute idling
			Max	10-minute idling	O

1. Request switch

The request switch is on the outside handle. Locking/unlocking the doors using the request switch is only possible with the power mode OFF. All the doors will lock/unlock when the request switch is pressed and it has been verified that the electronic key is within the range.

2. External antenna

The external antenna is built into the outside handle. If the outside handle request switch is pressed, the external antenna sends radio signals to the electronic key.

Legend

Outside handle (external antenna, request switch) connector pin layout

Pin No.	Pin Function	Pin No.	Pin Function
1	External antenna (-)	5	External antenna (+)
2	-	6	-
3	-	7	-
4	Request switch signal	8	Request switch ground

3. Center in-vehicle antenna

The center in-vehicle antenna is installed to the rear side of the center console. When the engine start/stop button is pressed, the wireless access module sends radio signals from the center in-vehicle antenna to the electronic key.

Pin No.	Pin Function
1	Center in-vehicle antenna (+)
2	Center in-vehicle antenna (-)

4. Electronic key

By carrying the electronic key, it is possible to lock/unlock doors and start the engine without inserting a mechanical key. It is also possible to lock/unlock doors using the lock/unlock buttons on the electronic key.
If starting the engine becomes impossible for some reason (drained electronic key battery, etc.), place the electronic key with the built-in transponder near the engine start/stop button and press the engine start/stop button to start the engine. If the engine start/stop button is pressed, the engine start/stop button LED indicator will begin to flash. Place the electronic key near the engine start/stop button when the LED indicator is flashing to authenticate with the passive entry and start system, and then the buzzer will sound. After authentication, the engine is started by pressing the engine start/stop button within 10 seconds after the LED indicator starts flashing slowly. If it is not authenticated or the engine start/stop button is not pressed within 10 seconds after authentication, the LED indicator of the engine start/stop button will turn OFF. It is possible to register a maximum of 5 electronic keys. The battery life of the electronic key is approximately 2 years, though it varies depending on usage conditions.
The electronic key has a function to prevent the unauthorized communication with the vehicle. When the lock button is pressed and the unlock button is pressed and held for 5 seconds at the same time, the function will operate and the electronic key indicator flashes twice. The passive entry and start system communication is stopped when the function is operating. To cancel the function, operate any of the electronic key buttons.

Legend

5. Engine start/stop button, steering lock assembly

The engine start/stop button is used to switch the power mode to ACC or ON, and to start the engine. When the engine start/stop button is pressed, the wireless access module starts authentication with the electronic key. When authentication is complete normally, the wireless access module starts authentication with the steering lock assembly. When authentication is complete normally, the steering wheel lock is unlocked.
The wireless access module starts authentication with the ECM when the power mode is turned ON. When authentication is complete, the ECM sends the starter ON permission signal and the wireless access module starts the engine.
If starting the engine becomes impossible for some reason (drained electronic key battery, etc.), place the electronic key with the built-in transponder near the engine start/stop button to start authentication with the wireless access module. When authentication is complete normally, the engine can be started by pressing the engine start/stop button.

Pin No.	Pin Function	Pin No.	Pin Function
1	-	8	Immobilizer coil (-)
2	Engine start/stop switch 2 signal	9	Immobilizer coil (+)
3	-	10	-
4	Engine start/stop switch 2 ground	11	Engine start/stop button illumination
5	Engine start/stop switch 1 / LED ground	12	Engine start/stop button LED indicator (green)
6	-	13	Engine start/stop button LED indicator (amber)
7	Engine start/stop switch 1 signal	14	-

Pin No.	Pin Function
1	Ground
2	-
3	Steering lock operating permission signal
4	Steering lock position signal
5	LIN communication
6	Ignition power supply
7	Battery power supply

6. External buzzer

The external buzzer is installed in the engine room. External buzzer (answerback buzzer) operation/non-operation and volume settings can be changed with the user customization function on the MID or the scan tool. The external buzzer also has the function of a warning buzzer and will generate a warning sound when the key monitor warning light performs a warning.

Pin No.	Pin Function
1	Ground
2	External buzzer control

7. Key monitor warning light

If a malfunction occurs in the wireless access module, the key monitor warning light illuminates or blinks to inform the driver of a malfunction in the system.

The passive entry and start system consists of the following parts.

Legend

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1. Wireless access module (Hi-version) general circuit diagram

2. Wireless access module (Hi-version) appearance, connector pin layout diagram

CN1 (B14)

PIN No.	Pin Function
1	Battery power supply
2	-
3	IG1 relay control
4	-
5	IG2 relay control
6	ACC relay control
7	Starter relay control
8	Clutch output signal (M/T)
9	Engine start/stop button LED indicator (amber)
10	Engine start/stop button LED indicator (green)
11	Engine start/stop button illumination
12	Clutch input signal (M/T)
13	Vehicle speed signal
14	Immobilizer coil (+)
15	Immobilizer coil (-)
16	-
17	-
18	-
19	IG1 feedback signal
20	-
21	IG2 feedback signal
22	ACC feedback signal
23	-
24	Parking switch signal (A/T)
25	-
26	Engine start/stop switch 1 signal
27	Engine start/stop switch 2 signal
28	P/N position switch signal (A/T) / Neutral switch signal (M/T)
29	-
30	Stoplight switch signal
31	-
32	Power ground

CN2 (B15)

PIN No.	Pin Function
1	External antenna (+) (Driver door)
2	-
3	-
4	-
5	External antenna (+) (passenger door)
6	-
7	Center in-vehicle antenna (+)
8	-
9	-
10	-
11	-
12	-
13	-
14	Steering lock inhibition
15	External buzzer control
16	Steering lock position signal
17	Steering lock operating permission signal
18	LIN communication
19	CAN high signal
20	CAN low signal
21	External antenna (-) (Driver door)
22	Request switch signal (Driver door)
23	-
24	Request switch signal (passenger door)
25	External antenna (-) (passenger door)
26	-
27	Center in-vehicle antenna (-)
28	-
29	-
30	-
31	-
32	-
33	-
34	-
35	-
36	-
37	Key monitor warning light control
38	TPMS load selector switch
39	-
40	Signal ground