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LOW PITCHED HORN

IGNITION SWITCH

UNLOCK WARNING SWITCH

THEFT WARNING ECU ASSEMBLY

MAIN BODY ECU

- HAZARD WARNING LIGHT

DLC3 HOOD LOCK ASSEMBLY

HATCHBACK:

LOW PITCHED HORN

IGNITION SWITCH

UNLOCK WARNING SWITCH

THEFT WARNING ECU ASSEMBLY

MAIN BODY ECU

- HAZARD WARNING LIGHT

DLC3 HOOD LOCK ASSEMBLY

SEDAN:

BACK DOOR LOCK ACTUATOR ASSEMBLY

- UNLOCK DETECTION SWITCH

BACK DOOR LOCK ASSEMBLY

- BACK DOOR COURTESY SWITCH

FRONT DOOR COURTESY

- TAILLIGHT

REAR COMBINATION LIGHT ASSEMBLY RH

HATCHBACK:

FRONT DOOR LOCK LH

FRONT DOOR LOCK RH

REAR DOOR LOCK LH

REAR DOOR LOCK RH

REAR COMBINATION LIGHT ASSEMBLY LH

REAR COMBINATION LIGHT ASSEMBLY RH

-LUGGAGE COMPARTMENT DOOR UNLOCK DETECTION SWITCH

KEY LOCK CYLINDER -UNLOCK DETECTION SWITCH

-UNLOCK DETECTION SWITCH

-UNLOCK DETECTION SWITCH

-UNLOCK DETECTION SWITCH

SEDAN:

FRONT DOOR COURTESY SWITCH RH

REAR DOOR COURTESY SWITCH RH

-LUGGAGE MENT DOOR COURTESY SWITCH

COMPART-LUGGAGE COMPARTMENT DOOR LOCK ASSEMBLY

SEDAN:

Hazard Warning Light

Low Pitched Horn

Main Body ECU

Security Indicator Light

Luggage Compartment Door Unlock Detection Switch *2

Luggage Compartment

Door Courtesy Switch *2

SYSTEM DESCRIPTION

1 OUTLINE OF THEFT DETERRENT SYSTEM

(a) When any attempt is made to forcibly enter the vehicle, open the engine hood or unlock any door without using a key, or when the battery terminals are disconnected and then reconnected, this system causes the vehicle horn and security horn to sound, the interior light to light up, and the hazard warning lights, taillights and headlights to flash, in order to deter break-in and theft

(b) The theft deterrent system has two arming modes;

Active and Passive Active arming mode allows the theft deterrent system to activate normally Passive arming mode is used for the servicing The

intelligent tester allows the theft deterrent system to switch between Active and Passive

(See pageTD-16)(c) Each mode has 4 states; a disarmed state, an arming preparation state, an armed state and an alarm sounding state

(1) Disarmed state:

• The alarm function is not operating

• The theft deterrent system is not operating

(2) Arming preparation state:

• The state before the system goes into the armed state

• The theft deterrent system is not operating

(3) Armed state:

• The theft deterrent system is operating

(4) Alarm sounding state:

• The alarm function is operating

Alarm time:

Approximately 57 seconds.

Alarm form manifestation and duration:

2 ACTIVE ARMING MODE

(approximately 0.4 seconds cycles)

(approximately 0.4 seconds cycles)

(approximately 0.4 seconds cycles)

(No key in ignition key cylinder)

Condition (3)

One of following operations performed within 30 seconds of entering arming preparation state:

Condition (4)

One of following operations performed in armed state:

Condition (5)

One of following operations performed in alarm sounding state or armed state:

Condition (5) Condition (5)

B112141E01

HINT:

*: When the driver door or passenger door key cylinder is turned to the lock position using a key with all the doors locked and the engine hood closed, the system enters the arming preparation state However, the system does not enter the arming preparation state when the back door lock key cylinder is turned to the lock position

Sedan:

*: Only for vehicles with transmitter

3 PASSIVE ARMING MODE

Passive arming mode can be switched ON and OFF using the specified method The theft deterrent system is initially set to active arming mode when vehicles are shipped from factories

HINT:

• Passive arming mode starts the alarm control after the key is removed from the ignition key cylinder and the doors are closed

• During passive arming mode, the theft deterrent system goes into the armed state even if the doors are not locked

• Even if the theft deterrent system detects that a door

is opened during passive arming mode, the system does not go into the alarm sounding state immediately because an entry delay time is set

• If either of the following conditions is met during passive arming mode, the theft deterrent system switches to active arming mode

– With all the doors and the engine hood closed, all the doors are locked by the key operation

Condition Item

Condition (1)

(No key in ignition key cylinder)

closed.

luggage compartment door closed.

Condition (3)

One of following operations performed within 30 seconds of entering arming preparation state:

Condition (4)

One of following operations performed in armed state:

Condition (5)

One of following operations performed in alarm sounding state or armed state:

– With the engine hood closed and all the doors locked with any door still open, the open door is closed

• This system activates as described in the diagram below when one item for each condition is met.(a) Passive arming mode

• *1: Disarmed state (1) is the normal disarmed state

• *2: Disarmed state (2) is set from either the disarmed state (1) or the arming preparation state

Condition (7)

Condition (8) Condition (6)

Condition (5)

Arming Preparation State

Alarm Sounding State Armed State HATCHBACK:

B112142E02

Condition (3)

One of following operations performed in arming preparation state or disarmed state (2):

Condition (6)

One of following operations performed in armed state:

Condition (7)

One of following operations performed in armed state or alarm sounding state:

Condition (7)

Condition (9) Condition (6)

Condition (5)

Arming Preparation State

Alarm Sounding State Armed State

Condition (3)

One of following operations performed in arming preparation state or disarmed state (2):

*1: Only for vehicles with transmitter

*2: System does not return to disarmed state if the luggage compartment door key cylinder is turned to the unlock position using a key

4 ALARM MEMORY FUNCTION

(a) If the alarm is set off (tampering is detected) while the theft deterrent system is armed, the alarm memory function records it Whenever the theft deterrent system is canceled, the alarm memory function causes the taillights to light up for 2 seconds in order to indicate that the alarm has been set off

(1) Conditions of the alarm memory function that cause the taillights to light up:

When the theft deterrent system has entered the alarm sounding state (tampering has been detected), the taillights light up for 2 seconds if either of the following conditions is met

• Switched to the disarmed state from the armed state during active arming mode

• Switched to the disarmed state (1) from the armed state during passive arming mode

5 SECURITY INDICATOR OUTPUT

(a) The theft warning ECU outputs a signal to light up the security indicator, according to the state of the theft deterrent system However, some of the actual lighting conditions of the security indicator are different from the output signals of the theft warning ECU

Output:

Condition (6)

One of following operations performed in armed state:

Condition (7)

One of following operations performed in armed state or alarm sounding state:

BLINKING (immobiliser system set)

Armed state

(During entry delay time)

BLINKING (ON)

BLINKING (ON)

6 ENTRY DELAY FUNCTION

(a) When any door is opened while all the doors are closed during passive arming mode, the entry delay time starts If the switch condition (7) or (8) (see PASSIVE ARMING MODE) is met during the entry delay time, the theft deterrent system will not set off the alarm However, if the switch condition (7) or (8)

is not met, the theft deterrent system will recognize

it as a theft and set off the alarm

HINT:

The entry delay time can be selected from among 0,

14, 30 seconds by customizing the setting

Time Security Indicator

Closed Open ON OFF ON

(0, 14, 30 seconds) Armed State Alarm Sounding State

(1) If no DTCs recur, proceed to A.

(2) If the same DTCs recur, proceed to B

B A

(a) If the fault is not listed in the problem symptoms table, proceed to A

(b) If the fault is listed in the problem symptoms table, proceed to B

B A

(a) Data list/Active test (See page TD-20)(b) Terminals of ECU (See page TD-17)(c) System Description (See page TD-7)

1 VEHICLE BROUGHT TO WORKSHOP

2 INSPECT BATTERY VOLTAGE

• Be sure to record the current settings before customization.

• When troubleshooting, make sure that the item in question is not set to OFF due to customization (For example, when the problem is that the wireless function is inoperative, first check whether the wireless function has been set to OFF before troubleshooting.)

Theft Deterrent System:

Display (Item) Default Function Setting

PASSIVE MODE

In passive arming mode, theft deterrent system switched from arming preparation state to armed state 30 seconds after both

of following operations performed.

In passive arming mode, if following operations are not performed within 14 seconds of door being opened while in armed state, theft deterrent system determines that condition

as theft and switches to alarm sounding state.

turned from OFF to ON

Changes entry delay time (time before warning starts) for

of the table Check each symptom by checking the suspected areas in the order they are listed Replace parts as

necessary

Theft Deterrent System

*1: Hatchback

*2: Sedan

Symptom Suspected area See page

Theft deterrent system cannot be set.

-Security indicator light does not blink when theft

deterrent system is set.

-Theft deterrent system can be set, but does not

operate when engine hood is opened.

-Theft deterrent system can be set, but is not canceled

when ignition switch is turned to ACC or ON position.

-Theft deterrent system can be set, but still operates

when back door is opened with key.

-Theft deterrent system can be set, but still operates

when luggage compartment door is opened with

key*2.

-While theft deterrent system is in warning operation,

horns do not sound.

-Horns sound even when theft deterrent system is not

set.

TERMINALS OF ECU

1 CHECK THEFT WARNING ECU ASSEMBLY (THEFT DETERRENT ECU)

(a) Disconnect the D26 ECU connector

(b) Check the voltage or resistance of each terminal of the wire harness side connector

(c) Reconnect the D26 ECU connector

(d) Check the voltages of each terminal of the connector

LSR (D26-6)*1 - Body

Back door unlock

LUG (D26-6)*2 - Body

Luggage compartment door unlock detection switch signal

Luggage compartment door

Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition

BRK+ (D26-24) - Body

Alarm BERKES Communication

Theft deterrent system is in alarm sounding state.

Pulse generation (1.5 V ← → Below 1.2 V) BRK- (D26-25) - Body

Alarm BERKES Communication

All doors are locked using key (Theft deterrent system is in arming preparation state).

Pulse generation (1.5 V ← → Below 1.2 V)

SH- (D26-15) - Body

Security horn is sounding (Theft deterrent system is in alarm sounding state).

Pulse generation (11 to 14 V ← → Below 1

V)

input

Key unlock warning switch ON (Key inserted) → OFF (Key removed from ignition key cylinder)

Below 1 V → 11 to 14 V

5 V or more G*2 - W-B

DSWH 4) - E

Engine hood courtesy switch input

Engine hood courtesy switch OFF

Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition

2 CHECK DLC3

(a) The ECU uses ISO 15765-4 for communication

The terminal arrangement of the DLC3 complies with SAE J1962 and matches the ISO 15765-4 format

NOTICE:

*: Before measuring the resistance, leave the vehicle as is for at least 1 minute and do not operate the ignition switch, any other switches

or the doors.

If the result is not as specified, the DLC3 may have

a malfunction Repair or replace the harness and connector

(b) Intelligent testerHINT:

Connect the cable of the intelligent tester to the CAN VIM, connect the CAN VIM to the DLC3, turn the ignition switch ON and attempt to use the tester

If the display indicates that a communication error has occurred, there is a problem either with the vehicle or with the tester

• If communication is normal when the tester is connected to another vehicle, inspect the DLC3

of the original vehicle

CG SG

BAT

SIL CANH

CANL

H100769E16

Symbols (Terminal No.) Terminal Description Condition Specified Condition

Intelligent Tester

CAN VIM

DLC3

B142272E01

• If communication is still not possible when the tester is connected to another vehicle, the problem may be in the tester itself Consult the Service Department listed in the tester's instruction manual

3 INSPECT BATTERY VOLTAGE Standard voltage:

(b) Turn the ignition switch ON

(c) Read the DTCs by following the prompts on the tester's screen

(b) Turn the ignition switch ON

(c) Erase the DTCs by following the prompts on the tester's screen

B142272E01

(a) Connect the intelligent tester with CAN VIM to the DLC3.

(b) Turn the ignition switch ON

(c) Read the DATA LIST according to the display on the tester

Theft Warning ECU:

*1: Hatchback

*2: Sedan

Main Body ECU:

Item Measurement Item/Display (Range) Normal Condition Diagnostic

ON: Luggage compartment door is unlocked

-HOOD COURTSY

SW

Engine hood courtesy switch signal/ON

or OFF

ON: Engine hood is open

-BACK DOOR

LOCK*1

Back door unlock detection switch signal/ON or OFF

ON: Back door is locked

-BACK DOOR

UNLOCK*1

Back door unlock detection switch signal/ON or OFF

ON: Back door is unlocked

-KEY UNLK WRN

ON: Key is inserted into ignition key cylinder

D CRTSY: Alarms are caused by door courtesy light switch

D POS: Alarms are caused by door position switch

H CRTSY: Alarms are caused by hood courtesy switch

L CRTSY: Alarms are caused by back door or luggage compartment door courtesy switch

IG SW: Alarms are caused by ignition switch OPEN: Alarms are caused by open circuit

NO SIG: No signals

ON: When switched from armed state to alarm sounding state OFF: When switched from alarm sounding state to armed state

or disarmed state

0s: Entry delay time is 0 sec.

14s: Entry delay time is 14 sec.

30s: Entry delay time is 30 sec.

ON: Driver side door is open

signal / ON or OFF

ON: Driver side door is unlocked

signal / ON or OFF

ON: Passenger side door is open

switch signal / ON or OFF

ON: Passenger side door is unlocked

-BK DOR CTY

ON: Back door is open

(a) Connect the intelligent tester with CAN VIM to the DLC3.

(b) Turn the ignition switch ON

(c) Perform the ACTIVE TEST according to the instructions on the tester

Theft Warning ECU:

Main Body ECU:

-Item Measurement Item/Display (Range) Normal Condition Diagnostic

Note

Item Test Detail Diagnostic Note

-Item Test Detail Diagnostic Note

DIAGNOSTIC TROUBLE CODE CHART

If a malfunction code is displayed during the DTC check, check the circuit listed for that code in the table below and then proceed to the page given for that circuit

MAIN BODY ECU DIAGNOSTIC TROUBLE CODE CHART

DTC No Detection Item Trouble Area See page

Communication Stop

DTC B1269 Theft Deterrent ECU Communication Stop

DTC No DTC Detection Condition Trouble Area

more than 10 seconds.

Theft Warning ECU Assembly

Main Body ECU DOME

MAIN

Battery

ECU-B

+B2 +B1

BRK+

SRX

BRK-STX

(a) Disconnect the D26 theft warning ECU connector.

(b) Check the voltage between the wire harness side connector and body ground

Main Body ECU Connector

BRK+

E

BRK-STX SRX

D26-25 (BRK-) or D33-19 (STX) - Body ground 10 k Ω or higher

D26-16 (E) - Body ground Below 1 Ω

REPAIR OR REPLACE HARNESS AND CONNECTOR

2 CHECK HARNESS AND CONNECTOR (BATTERY VOLTAGE)

                    

D26

Front View

Theft Warning ECU Assembly Connector

Wire Harness Side:

(c) Turn the intelligent tester main switch ON.

(d) Select the item below in the DATA LIST and read the display on the tester

Theft Warning ECU

NG

Engine Hood Courtesy Switch Circuit

1 READ VALUE USING INTELLIGENT TESTER (ENGINE HOOD COURTESY SWITCH)

Theft Warning ECU Assembly

DSWH

Engine Hood Courtesy Switch

1 2

B148196E01

Item Measurement Item/Display

(Range) Normal Condition Diagnostic Note HOOD COURTSY SW Engine hood courtesy switch

signal/ON or OFF

ON: Engine hood is OPEN OFF: Engine hood is CLOSED -

Go to step 2

OK

(a) Disconnect the A18 courtesy switch connector

(b) Check the resistance of the engine hood courtesy switch

Standard resistance

(c) Reconnect the courtesy switch connector

NG

OK

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

2 INSPECT HOOD LOCK ASSEMBLY (ENGINE HOOD COURTESY SWITCH)

Wire Harness Side:

Engine Hood Courtesy Switch Connector

Theft Warning ECU Assembly Connector

A18

D26 Front View

Front View DSWH

B121330E01

Tester Connection Specified Condition D26-4 (DSWH) - A18-1 Below 1 Ω

D26-4 (DSWH) - Body ground 10 k Ω or higher

REPAIR OR REPLACE HARNESS OR CONNECTOR

4 CHECK HARNESS AND CONNECTOR (ENGINE HOOD COURTESY SWITCH - BODY GROUND)

Wire Harness Side:

Engine Hood Courtesy Switch Connector

Front View A18

DESCRIPTION

When the theft deterrent system is changed from the armed state to the alarm sounding state, the theft

warning ECU can sound the security horn The horn cycles between ON and OFF at intervals of

approximately 0.4 seconds

WIRING DIAGRAM

INSPECTION PROCEDURE

(a) Connect the intelligent tester with CAN VIM to the DLC3

(b) Turn the ignition switch ON

(c) Turn the intelligent tester main switch ON

(d) Select the item below in the ACTIVE TEST and then check that the horn operates

Theft Warning ECU

OK:

Security horn operates normally.

Security Horn Circuit

1 PERFORM ACTIVE TEST USING INTELLIGENT TESTER (SECURITY HORN)

Theft Warning ECU Assembly ECU-B

SH-L

B121332E01

Item Test Details Diagnostic Note SECURITY HORN Security horn ON/OFF -

NG OK

(a) Remove the ECU-B fuse from the engine room R/B.(b) Measure the resistance

Standard resistance:

Below 1 Ω(c) Reinstall the ECU-B fuse

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

2 INSPECT FUSE (ECU-B)

Theft Warning ECU Assembly Connector

Wire Harness Side: