Toyota Avalon (XX50): Theft Deterrent System(for Gasoline Model)

Operation History

Battery Desorption

Hood Open

Luggage Open

Door Open

Door Unlock

IG

Intrusion Sensor Detect

Glass Sensor

Tilt Sensor

Intrusion Sensor Sound Detect

Intrusion Sensor Detect at Window Open

Panic Alarm

Panic Function

This function makes it possible to operate the theft deterrent system by continuously pressing the panic switch on the key for 0.8 seconds

ON

0:OFF,1:ON

Main body ECU (Multiplex network body ECU)

ACC SW

Engine switch

OFF or ON

OFF: Engine switch off

ON: Engine switch on (ACC)

-

IG SW

Engine switch

OFF or ON

OFF: Engine switch off or ACC

ON: Engine switch on (IG)

-

RR Door Courtesy SW

Rear door courtesy light switch assembly (for RH)

OFF or ON

OFF: Rear door RH closed

ON: Rear door RH open

-

RL Door Courtesy SW

Rear door courtesy light switch assembly (for LH)

OFF or ON

OFF: Rear door LH closed

ON: Rear door LH open

-

FR Door Lock Pos

Front door RH unlock detection switch

LOCK or UNLOCK

LOCK: Front door RH locked

UNLOCK: Front door RH unlocked

-

FR Door Courtesy SW

Front door courtesy light switch assembly (for RH)

OFF or ON

OFF: Front door RH closed

ON: Front door RH open

-

FL Door Lock Pos

Front door LH unlock detection switch

LOCK or UNLOCK

LOCK: Front door LH locked

UNLOCK: Front door LH unlocked

-

FL Door Courtesy SW

Front door courtesy light switch assembly (for LH)

OFF or ON

OFF: Front door LH closed

ON: Front door LH open

-

Hood Courtesy SW

Engine hood courtesy switch

OFF or ON

OFF: Engine hood closed

ON: Engine hood open

-

RR-Door Lock Pos SW

Rear door RH unlock detection switch

OFF or ON

OFF: Rear door RH locked

ON: Rear door RH unlocked

-

RL-Door Lock Pos SW

Rear door LH unlock detection switch

OFF or ON

OFF: Rear door LH locked

ON: Rear door LH unlocked

-

Luggage Courtesy SW

Luggage compartment door courtesy light switch signal

OFF or ON

OFF: Luggage compartment door closed

ON: Luggage compartment door open

-

Intrusion Sens OFF SW

Intrusion sensor cancel switch*

OFF or ON

OFF: Intrusion sensor cancel switch off

ON: Intrusion sensor cancel switch on

Not applicable

Glass Break Sensor Detection

Glass breakage sensor breakage detection*

OFF or ON

OFF: Glass breakage sensor breakage not detected

ON: Glass breakage sensor breakage detected

Not applicable

Intrusion Sensor

Detection status of the intrusion sensor (theft warning ultrasonic sensor)*

OFF or ON

OFF: Intrusion not detected

ON: Intrusion detected

Not applicable

Intrusion Sen Conn

Intrusion sensor (theft warning ultrasonic sensor) connection*

OFF or ON

OFF: Intrusion sensor not connected

ON: Intrusion sensor connected

Not applicable

Intrusion Sensor Sound Detect

Sound detection status of the intrusion sensor (theft warning ultrasonic sensor)*

OFF or ON

OFF: Sound not detected

ON: Sound detected

Not applicable

Panic Function

Setting of customize setting "Panic Function"

OFF or ON

Customize setting displayed

-

Intrusion Win Opened

Setting of customize setting "Intrusion Win Opened"*

OFF or ON

Customize setting displayed

Not applicable

Communication Theft Deterrent

Connection status between theft deterrent ECU and main body ECU (multiplex network body ECU)*

STOP or OK

STOP: Communication stopped

OK: Normal communication

Not applicable

Security Indicator

Security indicator*

OFF/ON

Not applicable

Security Horn2

Theft warning siren assembly*

OFF/ON

Not applicable

Vehicle Horn

Vehicle horns

OFF/ON

-

Security Horn

Security horn assembly

OFF/ON

-

Power For Intrusion Sensor

Intrusion sensor (theft warning ultrasonic sensor) power supply*

OFF/ON

Not applicable

Immobiliser Indicator

Security indicator

OFF/ON

-

1.

READ VALUE USING TECHSTREAM (HOOD COURTESY SW)

Hood Courtesy SW

Engine hood courtesy switch

OFF or ON

OFF: Engine hood closed

ON: Engine hood open

-

Hood Courtesy SW

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

2.

INSPECT ENGINE HOOD COURTESY SWITCH (HOOD LOCK ASSEMBLY)

REPLACE ENGINE HOOD COURTESY SWITCH (HOOD LOCK ASSEMBLY)

3.

CHECK HARNESS AND CONNECTOR (MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) - ENGINE HOOD COURTESY SWITCH (HOOD LOCK ASSEMBLY) AND BODY GROUND)

G33-30 (HCTY) - A12-2

Always

Below 1 Ω

G33-30 (HCTY) or A12-2 - Body ground

Always

10 kΩ or higher

A12-1 - Other terminals and body ground

Always

Below 1 Ω

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

REPAIR OR REPLACE HARNESS OR CONNECTOR

1.

INSPECT HORNS

Horns sound

A

Horns do not sound

B

GO TO HORN SYSTEM

2.

INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY

*a

Component without harness connected

(Instrument Panel Junction Block Assembly)

-

-

4F-27 - MB-28 (HORN)

Always

Below 1 Ω

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY

1.

VEHICLE BROUGHT TO WORKSHOP

2.

CUSTOMER PROBLEM ANALYSIS CHECK

What

Vehicle model, system name

When

Date, time, occurrence frequency, whether the problem occurred recently or has been occurring for a long time

Where

Whether the problem occurs at a specific location

Under what conditions?

Whether the doors were locked or unlocked, whether the engine switch was on (IG), whether the engine has started.

How did it happen?

Problem symptoms

3.

READ AND SAVE OPERATION HISTORY

Operation History

4.

PRE-CHECK

5.

SYMPTOM SIMULATION

6.

INSPECT COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*

CAN DTCs are not output

A

CAN DTCs are output

B

GO TO CAN COMMUNICATION SYSTEM

7.

CHECK POWER DOOR LOCK CONTROL SYSTEM

GO TO POWER DOOR LOCK CONTROL SYSTEM

8.

CHECK WIRELESS DOOR LOCK CONTROL SYSTEM

GO TO WIRELESS DOOR LOCK CONTROL SYSTEM

9.

CHECK SMART KEY SYSTEM (for Entry Function)

GO TO SMART KEY SYSTEM (for Entry Function)

10.

CHECK SMART KEY SYSTEM (for Start Function)

GO TO SMART KEY SYSTEM (for Start Function)

11.

CHECK LIGHTING SYSTEM (EXT)

OK

A

NG (w/ Cornering Light)

B

NG (w/o Cornering Light)

C

GO TO LIGHTING SYSTEM (EXT)

GO TO LIGHTING SYSTEM (EXT)

12.

CHECK LIGHTING SYSTEM (INT)

GO TO LIGHTING SYSTEM (INT)

13.

CHECK LUGGAGE COMPARTMENT DOOR OPENER SYSTEM

GO TO LUGGAGE COMPARTMENT DOOR OPENER SYSTEM

14.

CHECK HORN SYSTEM

GO TO HORN SYSTEM

15.

PROBLEM SYMPTOMS TABLE

Fault is not listed in Problem Symptoms Table (Fault can be simulated)

A

Fault is not listed in Problem Symptoms Table (Fault cannot be simulated)

B

Fault is listed in Problem Symptoms Table

C

CHECK FOR INTERMITTENT PROBLEMS

GO TO STEP 17

16.

PERFORM OVERALL ANALYSIS AND TROUBLESHOOTING*

17.

REPAIR OR REPLACE

18.

CONFIRMATION TEST

END

1.

CHECK THEFT DETERRENT SYSTEM OPERATION HISTORY

There is operation history around the time that the customer reported the malfunction to have occurred, but a malfunction could not be identified during the operation check.

A

There is operation history around the time that the customer reported the malfunction to have occurred, and the malfunction was identified during the operation check.

B

There is no operation history around the time that the customer reported the malfunction to have occurred.

C

GO TO STEP 7

END

2.

CHECK SECURITY INDICATOR LIGHT OPERATION

Disarmed state (1), (2)

Theft deterrent system is unset.

• Off (Immobiliser system unset)
• Blinking (Immobiliser system set)

Arming preparation state

Standby period after theft deterrent system set conditions are met but before theft deterrent system is actually set (approximately 30 seconds).

(Theft detection not possible)

On

Armed state

Theft deterrent system is set.

(Theft detection is possible)

Blinking (Immobiliser system set)

Alarm sounding state

Theft attempt is detected, and alarm operates using turn signal lights, security horn assembly and vehicle horns.

(Alarm sounds for 57 seconds)

On

GO TO OTHER PROBLEM

3.

READ VALUE USING TECHSTREAM (Hood Courtesy SW)

Hood Courtesy SW

Engine hood courtesy switch

OFF or ON

OFF: Engine hood closed

ON: Engine hood open

-

Hood Courtesy SW

GO TO STEP 5

4.

INTERVIEW THE CUSTOMER

END

CHECK FOR INTERMITTENT PROBLEMS

5.

INSPECT ENGINE HOOD COURTESY SWITCH (HOOD LOCK ASSEMBLY)

REPLACE HOOD LOCK ASSEMBLY

6.

CHECK HARNESS AND CONNECTOR (ENGINE HOOD COURTESY SWITCH (HOOD LOCK ASSEMBLY) - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) AND BODY GROUND)

G33-30 (HCTY) - A12-2 (+)

Always

Below 1 Ω

G33-30 (HCTY) or A12-2 (+) - Other terminals and body ground

Always

10 kΩ or higher

A12-1 (E) - Body ground

Always

Below 1 Ω

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

REPAIR OR REPLACE HARNESS OR CONNECTOR

7.

INTERVIEW THE CUSTOMER

END

CHECK FOR INTERMITTENT PROBLEMS

*1

ENGINE HOOD COURTESY SWITCH

*2

HIGH PITCHED HORN ASSEMBLY

*3

HORN RELAY

*4

LOW PITCHED HORN ASSEMBLY

*5

SECURITY HORN ASSEMBLY

*6

NO. 1 ENGINE ROOM RELAY BLOCK AND NO. 1 JUNCTION BLOCK ASSEMBLY

- HORN FUSE

*7

HOOD LOCK ASSEMBLY

*8

HEADLIGHT ASSEMBLY LH

- LOW BEAM

- TURN SIGNAL LIGHT

*9

HEADLIGHT ASSEMBLY RH

- LOW BEAM

- TURN SIGNAL LIGHT

*10

SIDE TURN SIGNAL LIGHT ASSEMBLY LH

*11

SIDE TURN SIGNAL LIGHT ASSEMBLY RH

*12

ROOF CONSOLE BOX SUB-ASSEMBLY

- INTERIOR LIGHT

*1

FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY (for LH)

*2

FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY (for RH)

*3

FRONT DOOR LOCK WITH MOTOR ASSEMBLY LH

*4

FRONT DOOR LOCK WITH MOTOR ASSEMBLY RH

*5

LUGGAGE COMPARTMENT DOOR LOCK ASSEMBLY

*6

REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY (for LH)

*7

REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY (for RH)

*8

REAR DOOR LOCK WITH MOTOR ASSEMBLY LH

*9

REAR DOOR LOCK WITH MOTOR ASSEMBLY RH

*10

REAR COMBINATION LIGHT ASSEMBLY LH

- TAILLIGHT

- TURN SIGNAL LIGHT

*11

REAR COMBINATION LIGHT ASSEMBLY RH

- TAILLIGHT

- TURN SIGNAL LIGHT

*12

REAR LIGHT ASSEMBLY LH

*13

REAR LIGHT ASSEMBLY RH

-

-

*1

ENGINE SWITCH

*2

RADIO AND DISPLAY RECEIVER ASSEMBLY

*3

S-HORN RELAY

*4

MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

*5

INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY

- ECU-DCC NO. 2 FUSE

- ECU-ACC FUSE

- ECU-IG1 NO. 4 FUSE

- S-HORN FUSE

*6

CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

*7

DLC3

*8

COMBINATION METER ASSEMBLY

*9

NO. 5 RELAY BLOCK

*10

SECURITY INDICATOR LIGHT

1.

CHECK HARNESS AND CONNECTOR (POWER SUPPLY)

4F-1 - Body ground

Always

8.5 V or higher

REPAIR OR REPLACE HARNESS OR CONNECTOR

2.

INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY

*a

Component without harness connected

(Instrument Panel Junction Block Assembly)

-

-

4F-1 - MB-31 (BECU)

Always

Below 1 Ω

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY

Lane Departure Alert System (w/ Steering Control)

Intelligent Clearance Sonar System

Parking Assist Monitor System

Panoramic View Monitor System

Pre-collision System

Lighting System (for Gasoline Model with Cornering Light)

Theft deterrent system cannot be set

Refer to "Security Indicator Light Does not Blink"

Refer to "Front Door Courtesy Switch Circuit"

Refer to "Rear Door Courtesy Switch Circuit"

Refer to "Luggage Compartment Door Courtesy Switch Circuit"

Front door lock with motor assembly

Rear door lock with motor assembly

Luggage compartment door lock assembly

Refer to "Engine Hood Courtesy Switch Circuit"

Security indicator light does not blink when theft deterrent system is set

Refer to "Security Indicator Light Does not Blink"

Alarm sounding state cannot be canceled when engine switch is turned on (IG)

Refer to "Smart Key System (for Start Function)"

Certification ECU (Smart key ECU assembly)

-

If the symptom(s) still occur after the above areas are inspected and proved to be normal, replace the main body ECU (multiplex network body ECU)

Theft deterrent system can be set even when door is open

Refer to "Front Door Courtesy Switch Circuit"

Refer to "Rear Door Courtesy Switch Circuit"

Refer to "Luggage Compartment Door Courtesy Switch Circuit"

If the symptom(s) still occur after the above areas are inspected and proved to be normal, replace the main body ECU (multiplex network body ECU)

Theft deterrent system can be set even when engine hood is open

Refer to "Engine Hood Courtesy Switch Circuit"

Vehicle horns do not sound while theft deterrent system is in alarm sounding state

Refer to "Horn Circuit"

Low beams do not blink while theft deterrent system is in alarm sounding state

Refer to "LIGHTING SYSTEM"*1

Refer to "LO-beam Headlight does not Illuminate"*2

If the symptom(s) still occur after the above area is inspected and proved to be normal, replace the main body ECU (multiplex network body ECU)

Taillights do not blink while theft deterrent system is in alarm sounding state

Refer to "Taillight Relay Circuit"*1

Refer to "Taillight Relay Circuit"*2

If the symptom(s) still occur after the above area is inspected and proved to be normal, replace the main body ECU (multiplex network body ECU)

Hazard warning lights do not flash while theft deterrent system is in alarm sounding state

Combination meter assembly

-

If the symptom(s) still occur after the above area is inspected and proved to be normal, replace the main body ECU (multiplex network body ECU)

Interior lights does not light up while theft deterrent system is in alarm sounding state

Refer to "Interior Light Circuit"

If the symptom(s) still occur after the above area is inspected and proved to be normal, replace the main body ECU (multiplex network body ECU)

Security horn does not sound while theft deterrent system is in alarm sounding state

Refer to "Security Horn Circuit"

Low beams blink even when theft deterrent system is not set

Refer to "LIGHTING SYSTEM"*1

Refer to "LO-beam Headlight does not Illuminate"*2

If the symptom(s) still occur after the above area is inspected and proved to be normal, replace the main body ECU (multiplex network body ECU)

Taillights blink even when theft deterrent system is not set

Refer to "Taillight Relay Circuit"*1

Refer to "Taillight Relay Circuit"*2

If the symptom(s) still occur after the above area is inspected and proved to be normal, replace the main body ECU (multiplex network body ECU)

Hazard warning lights flash even when theft deterrent system is not set

Combination meter assembly

-

If the symptom(s) still occur after the above area is inspected and proved to be normal, replace the main body ECU (multiplex network body ECU)

Interiors light comes on even when theft deterrent system is not set

Refer to "Interior Light Circuit"

If the symptom(s) still occur after the above area is inspected and proved to be normal, replace the main body ECU (multiplex network body ECU)

The vehicle does not enter the alarm sounding state as the battery is reconnected

Check the battery

Refer to "Power Source Circuit"

1.

PERFORM ACTIVE TEST USING TECHSTREAM (SECURITY HORN)

Security Horn

Security horn Assembly

OFF/ON

-

Security Horn

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

2.

INSPECT SECURITY HORN ASSEMBLY

REPLACE SECURITY HORN ASSEMBLY

3.

INSPECT S-HORN RELAY

(a) Remove the S-HORN relay from the No. 5 relay block.

3 - 5

Battery voltage not applied between terminals 1 and 2

10 kΩ or higher

3 - 5

Battery voltage applied between terminals 1 and 2

Below 1 Ω

REPLACE S-HORN RELAY

4.

INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY

*a

Component without harness connected

(Instrument Panel Junction Block Assembly)

-

-

4A-20 - MB-29 (SH)

Always

Below 1 Ω

REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY

5.

CHECK HARNESS AND CONNECTOR (BATTERY - S-HORN RELAY)

(a) Measure the voltage according to the value(s) in the table below.

Standard Voltage:

REPAIR OR REPLACE HARNESS OR CONNECTOR

6.

CHECK HARNESS AND CONNECTOR (S-HORN RELAY - SECURITY HORN ASSEMBLY)

(a) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

REPAIR OR REPLACE HARNESS OR CONNECTOR

7.

CHECK HARNESS AND CONNECTOR (S-HORN RELAY - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY)

(a) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

REPAIR OR REPLACE HARNESS OR CONNECTOR

Alarm Method

• Exterior Lights
  • Low Beams
  • Taillights

Blinking

Turn Signal Lights

Blinking

Interior Lights

Illuminating

Vehicle Horns

Sounding

(Approximately 0.4-second cycles)

Security Horn Assembly

Sounding

(Approximately 0.4-second cycles)

Security indicator light

Informs driver of theft deterrent system status.

Security horn assembly

Sounds when attempted break-in or theft is detected.

Low beams

Blink when attempted break-in or theft is detected.

Taillights

• Blink when attempted break-in or theft is detected.
• Come on when theft deterrent system has entered alarm sounding state.

Turn signal lights

Blink when attempted break-in or theft is detected.

Interior lights

Comes on when attempted break-in or theft is detected.

Vehicle horns

Sound when attempted break-in or theft is detected.

• Front door courtesy light switch assembly (for LH/RH)
• Rear door courtesy light switch assembly (for LH/RH)

Detects door status (open or closed).

Door unlock detection switch

Detects door status (locked or unlocked).

Engine hood courtesy switch (Hood lock assembly)

Detects engine hood status (open or closed).

Certification ECU (Smart key ECU assembly)

• Receives wireless door lock/unlock signal.
• Receives entry door lock/unlock signal.

Luggage compartment door lock assembly

Detects luggage compartment door status (open or closed).

Condition [1]

In disarmed state 1, when the engine switch is turned off, the system state is changed if the following condition is met:

• With all doors, the luggage compartment door and the engine hood closed, all doors are locked by wireless operation, the smart key system or key linked power door lock operation.

In disarmed state 1, when the engine switch is off, the engine hood and the luggage compartment door are closed and all doors are locked, the system state is changed if the following condition is met:

• All doors are closed when any door is open.

Condition [2]

• Approximately 30 seconds elapse.

Condition [3]

• All doors are unlocked by wireless operation, the smart key system or key linked power door lock operation.
• Any door is unlocked.
• Any door is opened.
• The engine switch is pushed.
• The engine switch is turned on (ACC) or on (IG). (Not using the remote start.*)
• The battery is reconnected.

Condition [4]

• The engine hood is opened when it was closed.
• The luggage compartment door is opened when it was closed.
• The battery is reconnected while the engine hood or the luggage compartment door is open or any door is unlocked.
• Any door is opened when all doors are closed.
• Any door is unlocked when all doors are locked.
• When 5 seconds or more have elapsed since the engine switch is pressed, the power source mode is changed from off to on (IG) without pressing the engine switch. (Not using the remote start.*)

Condition [5]

• The engine switch is turned on (IG) and the engine is running at 550 rpm for 2 seconds or more.
• All doors are unlocked by wireless operation, the smart key system or key linked power door lock operation.
• The engine switch is turned on (ACC) or on (IG) within 5 seconds after the engine switch is pushed. (Not using the remote start.*)

Condition [6]

• After approximately 57 seconds, the alarm stops and the system returns to the armed state.

Condition [7]

The luggage compartment door is opened by wireless operation or the smart key system.

Condition [8]

• The luggage compartment door is closed when the engine hood is closed.
• The engine hood is closed when the luggage compartment door is closed.

Condition [9]

• Any door is unlocked when all doors are locked.
• Any door is opened.
• The engine switch is pushed.
• The engine switch is turned on (ACC) or on (IG). (Not using the remote start.*)
• The battery is reconnected.
• All doors are unlocked by wireless operation, the smart key system or key linked power door lock operation.

Condition [10]

In disarmed state 1, when the engine switch is turned off, the system state is changed if the following condition is met:

• With all doors closed and the engine hood and the luggage compartment door open, all doors are locked by wireless operation, the smart key system or key linked power door lock operation.

In disarmed state 1, when the engine switch is off, the engine hood and the luggage compartment door are open and all doors are locked, the system state is changed if the following condition is met:

• All doors are closed when any door is open.

Condition [11]

• The engine hood is opened.
• The luggage compartment door is opened.
• The luggage compartment door is opened by wireless operation or the smart key system.

Disarmed state (1), (2)

Off

• Off (Immobiliser system unset)
• Blinking (Immobiliser system set)

Arming preparation state

On

On

Armed state

Off

Blinking

Alarm sounding state

On

On

0.125 sec.

On

1.875 sec.

Off

G32-19 (GND2) - Body ground

W-B - Body ground

-

Ground

Always

Below 1 Ω

-

MB-31 (BECU) - Body ground

-

Input

Battery power supply

Always

11 to 14 V

-

MB-32 (IG) - Body ground

-

Input

Ignition power supply (IG signal)

Engine switch off

Below 1 V

IG SW

Engine switch on (IG)

11 to 14 V

MB-30 (ACC) - Body ground

-

Input

Ignition power supply (ACC signal)

Engine switch off

Below 1 V

ACC SW

Engine switch on (IG)

11 to 14 V

MB-11 (GND1) - Body ground

-

-

Ground

Always

Below 1 Ω

-

G33-1 (FLCY) - Body ground

W - Body ground

Input

Front door courtesy light switch assembly (for LH) input

Front door LH closed

10 kΩ or higher

FL Door Courtesy SW

Front door LH open

Below 1 Ω

G33-6 (FRCY) - Body ground

BE - Body ground

Input

Front door courtesy light switch assembly (for RH) input

Front door RH closed

10 kΩ or higher

FR Door Courtesy SW

Front door RH open

Below 1 Ω

MB-13 (LCTY) - Body ground

-

Input

Rear door courtesy light switch assembly (for LH) input

Rear door LH closed

10 kΩ or higher

RL Door Courtesy SW

Rear door LH open

Below 1 Ω

MB-2 (RCTY) - Body ground

-

Input

Rear door courtesy light switch assembly (for RH) input

Rear door RH closed

10 kΩ or higher

RR Door Courtesy SW

Rear door RH open

Below 1 Ω

G33-30 (HCTY) - Body ground

GR - Body ground

Input

Engine hood courtesy switch input

Engine hood open

10 kΩ or higher

Hood Courtesy SW

Engine hood closed

Below 1 Ω

MB-4 (LGCY) - Body ground

-

Input

Luggage compartment door courtesy light switch input

Luggage compartment door closed

10 kΩ or higher

Luggage Courtesy SW

Luggage compartment door open

Below 1 Ω

MB-14 (TRLY) - Body ground

-

Output

Taillight relay drive output

Always

11 to 14 V

-

4D-13 (LSFL) - Body ground

W - Body ground

Input

Front door LH unlock detection switch input

Front door LH unlocked

Below 1 V

FL Door Lock Pos SW

Front door LH locked

11 to 14 V

4D-12 (LSFR) - Body ground

GR - Body ground

Input

Front door RH unlock detection switch input

Front door RH unlocked

Below 1 V

FR Door Lock Pos SW

Front door RH locked

11 to 14 V

G34-18 (L2) - Body ground

LG - Body ground

Input

Driver door key-linked lock input

Driver door key cylinder turned to lock position

Below 1 V

Door Key SW-Lock

Driver door key cylinder off

11 to 14 V

G34-17 (UL3) - Body ground

BE - Body ground

Input

Driver door key-linked unlock input

Driver door key cylinder turned to unlock position

Below 1 V

D Door Key SW-UL

Driver door key cylinder off

11 to 14 V

4D-14 (LSWL) - Body ground

GR - Body ground

Input

Rear door LH unlock detection switch input

Rear door LH unlocked

Below 1 V

RL-Door Lock Pos SW

Rear door LH locked

11 to 14 V

G32-20 (LSWR) - Body ground

L - Body ground

Input

Rear door RH unlock detection switch input

Rear door RH unlocked

Below 1 V

RR-Door Lock Pos SW

Rear door RH locked

11 to 14 V

4A-20 (SH) - Body ground

L - Body ground

Output

Security horn assembly drive

Security horn assembly sounding

(Theft deterrent system in alarm sounding state)

Pulse generation

(Below 1 V ← → 11 to 14 V)

-

4F-27 (HORN) - Body ground

W - Body ground

Output

Vehicle horns drive

Vehicle horns sounding

(Theft deterrent system in alarm sounding state)

Pulse generation

(Below 1 V ← → 11 to 14 V)

-

4F-31 (HRLY) - Body ground

V - Body ground

Input

H-LP LH relay drive output

Low beams blinking

(Theft deterrent system in alarm sounding state)

Pulse generation

(Below 1 V ← → 11 to 14 V)

-

G33-12 (HRY2) - Body ground

BE - Body ground

Input

H-LP RH relay drive output

Low beams blinking

(Theft deterrent system in alarm sounding state)

Pulse generation

(Below 1 V ← → 11 to 14 V)

-

4D-29 (ILE) - Body ground

LA-G - Body ground

Output

Interior lights drive output

Interior lights illuminated

(Theft deterrent system in alarm sounding state)

Below 1 V

-