Toyota Venza manuals

Toyota Venza: Wireless Transmitter Memory Function does not Operate

Toyota Venza Service Manual / Seat / Front Power Seat Control System(w/ Memory) / Wireless Transmitter Memory Function does not Operate

DESCRIPTION

With the ignition switch off and the driver door closed, pressing the manual lock or unlock switch on the power window regulator master switch assembly while holding a seat memory switch (M1 switch or M2 switch) will register the transmitter recognition code into the seat memory switch that was pressed. After registration is completed, the answer back buzzer sounds.

CAUTION / NOTICE / HINT

NOTICE:

  • The seat position will not be recorded if the SET switch and 2 of the seat memory switches are pressed simultaneously.
  • If a memorizing operation has failed, release all switches. The seat memory function does not operate unless the switches are released.
  • The front power seat control system (w/ Memory) uses the CAN communication system. First, confirm that there is no malfunction in the communication system by checking communication function of the CAN communication system. Refer to the How to Proceed with Troubleshooting procedure (See page ).

PROCEDURE

1.

CHECK POWER DOOR LOCK CONTROL SYSTEM

(a) Check the manual lock/unlock function by using the door control switch (power window regulator master switch assembly) (See page ).


OK:

Manual lock/unlock function operates normally.

Result

Proceed to

OK (w/ Smart Key System)

A

OK (w/o Smart Key System)

B

NG

C

B

GO TO STEP 3


C

GO TO POWER DOOR LOCK CONTROL SYSTEM


A

2.

CHECK SMART KEY SYSTEM (for Start Function)

(a) Check that the engine starts normally when the engine switch is pressed while carrying the key and while the brake pedal is depressed.

OK:

Engine starts normally.


NG

GO TO SMART KEY SYSTEM (for Start Function)


OK

3.

CHECK SEAT POSITION MEMORY FUNCTION

(a) Store a seat position in memory (See page ).


(b) Check that the buzzer sounds for 0.5 seconds to indicate that a position has been stored.

NOTICE:

  • The seat position will not be recorded if the SET switch and 2 of the seat memory switches are pressed simultaneously.
  • If a memorizing operation has failed, release all switches. The seat memory function does not operate unless the switches are released.

OK:

Seat position memory function operates normally.


NG

GO TO OTHER DIAGNOSIS PROCEDURE (Power Seat Position is not Memorized)


OK

4.

CHECK SEAT POSITION RESTORING FUNCTION

(a) Restore a memorized seat position (See page ).


(b) Check that the buzzer sounds for 0.1 seconds and the seat automatically moves to the memorized position.

NOTICE:

  • The seat will not return to the memorized position if 2 of the seat memory switches are pressed simultaneously.
  • If a restoring operation has failed, release all switches. The seat memory restoring function does not operate unless the switches are released.

OK:

Seat position restoring function operates normally.


NG

GO TO OTHER DIAGNOSIS PROCEDURE (Power Seat does not Return to Memorized Position)


OK

5.

READ VALUE USING TECHSTREAM (DRIVER DOOR COURTESY SWITCH)

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(c) Turn the Techstream on.

(d) Enter the following menus: Body Electrical / Main Body / Data List.

(e) Read the Data List according to the display on the Techstream.

Main Body

Tester Connection

Measurement Item/Range

Normal Condition

Diagnostic Note

D Door Courtesy SW

Front door courtesy light switch assembly LH signal / ON or OFF

ON: Driver door open

OFF: Driver door closed

-

OK:

ON or OFF appears on the screen according to the driver door condition.


NG

GO TO LIGHTING SYSTEM (Door Courtesy Switch Circuit)


OK

6.

CHECK MEMORY CALL REGISTRATION FUNCTION

(a) When the following conditions are met, press the manual lock or unlock switch on the power window regulator master switch assembly.

  • Ignition switch is off
  • Press and hold the M1or M2 seat memory switch
  • Driver door closed
  • Carry the key*1
  • Pressing the lock/unlock switch of key*2
  • *1: w/ Smart Key System
  • *2: w/o Smart Key System

(b) Check that the buzzer sounds for 0.5 seconds to indicate the completion of memory call registration (See page ).


OK:

Buzzer sounds normally.


NG

GO TO STEP 9


OK

7.

READ VALUE USING TECHSTREAM (MEMORY CALL REGISTRATION)

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(c) Turn the Techstream on.

(d) Enter the following menus: Body Electrical / Main Body / Data List.

(e) Read the Data List according to the display on the Techstream.

Main Body

Tester Display

Measurement Item/Range

Normal Condition

Diagnostic Note

Mem SW No. w/KeyID1

Memory switch linked with key ID1 / NONE, MEM SW1, MEM SW2, or MEM SW3*

NONE: No switches linked with key ID1

MEM SW1: M1 switch linked with key ID1

MEM SW2: M2 switch linked with key ID1

MEM SW3: M3 switch linked with key ID1*

-

Mem SW No. w/KeyID2

Memory switch linked with key ID2 / NONE, MEM SW1, MEM SW2, or MEM SW3*

NONE: No switches linked with key ID2

MEM SW1: M1 switch linked with key ID2

MEM SW2: M2 switch linked with key ID2

MEM SW3: M3 switch linked with key ID2*

-

Mem SW No. w/KeyID3

Memory switch linked with key ID3 / NONE, MEM SW1, MEM SW2, or MEM SW3*

NONE: No switches linked with key ID3

MEM SW1: M1 switch linked with key ID3

MEM SW2: M2 switch linked with key ID3

MEM SW3: M3 switch linked with key ID3*

-

Mem SW No. w/KeyID4

Memory switch linked with key ID4 / NONE, MEM SW1, MEM SW2, or MEM SW3*

NONE: No switches linked with key ID4

MEM SW1: M1 switch linked with key ID4

MEM SW2: M2 switch linked with key ID4

MEM SW3: M3 switch linked with key ID4*

-

Mem SW No. w/KeyID5

Memory switch linked with key ID5 / NONE, MEM SW1, MEM SW2, or MEM SW3*

NONE: No switches linked with key ID5

MEM SW1: M1 switch linked with key ID5

MEM SW2: M2 switch linked with key ID5

MEM SW3: M3 switch linked with key ID5*

-

Mem SW No. w/KeyID6

Memory switch linked with key ID6 / NONE, MEM SW1, MEM SW2, or MEM SW3*

NONE: No switches linked with key ID6

MEM SW1: M1 switch linked with key ID6

MEM SW2: M2 switch linked with key ID6

MEM SW3: M3 switch linked with key ID6*

-

Mem SW No. w/KeyID7

Memory switch linked with key ID7 / NONE, MEM SW1, MEM SW2, or MEM SW3*

NONE: No switches linked with key ID7

MEM SW1: M1 switch linked with key ID7

MEM SW2: M2 switch linked with key ID7

MEM SW3: M3 switch linked with key ID7*

-
  • *: Although the item is displayed on the Techstream, it is not applicable to this vehicle.

OK:

On the Techstream display, it is confirmed that the memory call has been registered.


NG

REPLACE MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK ASSEMBLY)


OK

8.

CHECK MEMORY CALL FUNCTION

(a) Turn the ignition switch off.

(b) Close and lock all doors.

(c) Unlock the driver door by pressing the unlock switch of the memory call registered key or touching the driver door outside handle* while holding the memory call registered key.

(d) Open the driver door and check that the driver seat moves to the memorized position (See page ).


  • *: w/ Smart Key System

OK:

Driver seat moves to the memorized position.


OK

USE SIMULATION METHOD TO CHECK


NG

GO TO OTHER DIAGNOSIS PROCEDURE (Wireless-linked Return Function does not Operate)

9.

REPLACE MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK ASSEMBLY)

(a) Replace the main body ECU (driver side junction block assembly) (See page ).



NEXT

10.

CHECK MEMORY CALL REGISTRATION FUNCTION

(a) When the following conditions are met, press the manual lock or unlock switch on the power window regulator master switch assembly.

  • Ignition switch is off
  • Press and hold the M1 or M2 seat memory switch
  • Driver door closed
  • Carry the key*1
  • Pressing the lock/unlock switch of key*2
  • *1: w/ Smart Key System
  • *2: w/o Smart Key System

(b) Check that the buzzer sounds for 0.5 seconds to indicate the completion of memory call registration (See page ).


OK:

Buzzer sounds normally.

Result

Proceed to

OK

A

NG (w/ Smart Key System)

B

NG (w/o Smart Key System)

C

A

END (MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK ASSEMBLY) WAS DEFECTIVE)

C

REPLACE POSITION CONTROL ECU AND SWITCH ASSEMBLY


B

11.

REPLACE POSITION CONTROL ECU AND SWITCH ASSEMBLY

(a) Replace the position control ECU and switch assembly (See page ).



NEXT

12.

CHECK MEMORY CALL REGISTRATION FUNCTION

(a) When the following conditions are met, press the manual lock or unlock switch on the power window regulator master switch assembly.

  • Ignition switch is off
  • Press and hold the M1 or M2 seat memory switch
  • Driver door closed
  • Carry the key

(b) Check that the buzzer sounds for 0.5 seconds to indicate the completion of memory call registration (See page ).


OK:

Buzzer sounds normally.


OK

END (POSITION CONTROL ECU AND SWITCH ASSEMBLY WAS DEFECTIVE)

NG

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

Power Seat does not Return to Memorized Position
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Wireless-linked Return Function does not Operate
DESCRIPTION When a door is unlocked using the wireless unlock function or entry unlock function, the certification ECU (smart key ECU assembly) sends a door unlock signal and key ID signal to the ...

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