Toyota Venza: Wireless Transmitter Memory Function does not Operate

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

DESCRIPTION

Key IDs can be registered (linked) with either the M1 or M2 seat memory switches. The key ID registration procedure should be performed while the electrical key transmitter sub-assembly or door control transmitter assembly is in the vehicle, the ignition switch is ON, and the driver door is closed. When registration is completed, the buzzer will sound as an answerback.

PROCEDURE

1.	CHECK POWER DOOR LOCK OPERATION

(a) Check the power door lock operation (See page ).

OK:

Power door lock operation is normal.

Result	Proceed to
OK (w/ Smart Key System)	A
OK (w/o Smart Key System)	B
NG	C

GO TO STEP 3

GO TO POWER DOOR LOCK CONTROL SYSTEM (PROBLEM SYMPTOMS TABLE)

2.	CHECK SMART KEY SYSTEM (ENTRY FUNCTION)

(a) Check the smart key system (for entry function) (See page ).

OK:

Smart key system (for entry function) in normal.

GO TO SMART KEY SYSTEM (PROBLEM SYMPTOMS TABLE)

3.	CHECK MEMORY AND REACTIVATION FUNCTION

(a) Turn the ignition switch ON.

(b) Using the outer mirror switch assembly, turn the mirror surface to the fully left position.

(d) Check that the buzzer sounds for 0.5 seconds and the mirror surface position is stored.

(e) Using the outer mirror assembly, turn the mirror surface to the fully right position.

(f) Press the M1 switch.

(g) Check that the buzzer sounds for 0.1 seconds and the outer mirror automatically moves to the stored fully left position.

Result	Proceed to
Memory and reactivation function is normal	A
Memory function is not normal	B
Reactivation function is not normal	C

Text in Illustration

*a	Turn to Left Fully

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

GO TO OTHER DIAGNOSIS PROCEDURE (Power Mirrors do not Return to Memorized Position)

4.	READ VALUE USING TECHSTREAM (DOOR COURTESY SWITCH)

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch 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
D Door Courtesy SW	Driver door courtesy switch condition/ON or OFF	ON: Door courtesy switch on (driver door open) OFF: Door courtesy switch off (driver door closed)	-

Tester Display

Measurement Item/Range

Normal Condition

Diagnostic Note

D Door Courtesy SW

Driver door courtesy switch condition/ON or OFF

ON: Door courtesy switch on (driver door open)

OFF: Door courtesy switch off (driver door closed)

OK:

ON or OFF appears on the screen.

GO TO LIGHTING SYSTEM (Door Courtesy Switch Circuit)

5.	PERFORM ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY OR DOOR CONTROL TRANSMITTER ASSEMBLY RECOGNITION CODE REGISTRATION

(a) With the ignition switch off and the driver door closed, press and hold the M1 or M2 switch. The main body ECU (driver side junction block assembly) will enter electrical key transmitter sub-assembly or door control transmitter assembly recognition code registration mode to allow a key to be linked to mirror surface memory position.

HINT:

If the memory switch is released before entering registration mode, the memory switch will not enter registration mode.

(b) When the manual door lock switch is pressed, check that the buzzer of the front power seat switch LH sounds once (0.5 seconds).

OK:

The buzzer sounds when registration is completed.

GO TO STEP 9

6.	PERFORM MEMORY DELETION

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

(b) After performing any of the following procedures to cut the link between the key and switch, check that the Data List for the applicable key changes to NONE.

(c) With the ignition switch off and the driver door closed, press and hold the SET switch. The main body ECU (driver side junction block assembly) will enter electrical key transmitter sub-assembly or door control transmitter assembly recognition code deletion mode.

HINT:

If the memory switch is released before entering deletion mode, the memory switch will not enter deletion mode.

(d) When the manual door lock switch is pressed, check that the buzzer of the front power seat switch LH sounds twice (0.1 seconds each time).

Main Body

Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
Mem SW No. w/KeyID1	Switch linked with key ID1 / NONE, MEM SW1, MEM SW2, or MEM SW3*	NONE: No switches linked with key ID1 MEM SW1: M1 linked with key ID1 MEM SW2: M2 linked with key ID1 MEM SW3: M3 linked with key ID1*	-
Mem SW No. w/KeyID2	Switch linked with key ID2 / NONE, MEM SW1, MEM SW2, or MEM SW3*	NONE: No switches linked with key ID2 MEM SW1: M1 linked with key ID2 MEM SW2: M2 linked with key ID2 MEM SW3: M3 linked with key ID2*	-
Mem SW No. w/KeyID3	Switch linked with key ID3 / NONE, MEM SW1, MEM SW2, or MEM SW3*	NONE: No switches linked with key ID3 MEM SW1: M1 linked with key ID3 MEM SW2: M2 linked with key ID3 MEM SW3: M3 linked with key ID3*	-
Mem SW No. w/KeyID4	Switch linked with key ID4 / NONE, MEM SW1, MEM SW2, or MEM SW3*	NONE: No switches linked with key ID4 MEM SW1: M1 linked with key ID4 MEM SW2: M2 linked with key ID4 MEM SW3: M3 linked with key ID4*	-
Mem SW No. w/KeyID5	Switch linked with key ID5 / NONE, MEM SW1, MEM SW2, or MEM SW3*	NONE: No switches linked with key ID5 MEM SW1: M1 linked with key ID5 MEM SW2: M2 linked with key ID5 MEM SW3: M3 linked with key ID5*	-
Mem SW No. w/KeyID6	Switch linked with key ID6 / NONE, MEM SW1, MEM SW2, or MEM SW3*	NONE: No switches linked with key ID6 MEM SW1: M1 linked with key ID6 MEM SW2: M2 linked with key ID6 MEM SW3: M3 linked with key ID6*	-
Mem SW No. w/KeyID7	Switch linked with key ID7 / NONE, MEM SW1, MEM SW2, or MEM SW3*	NONE: No switches linked with key ID7 MEM SW1: M1 linked with key ID7 MEM SW2: M2 linked with key ID7 MEM SW3: M3 linked with key ID7*	-

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

OK:

The Data List display for the applicable key changes to NONE.

REPLACE MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK ASSEMBLY)

7.	PERFORM MEMORY REGISTRATION

(a) After performing any of the following procedures to link the key and a switch, check the Data List to confirm that the key and switch have been linked.

(b) With the ignition switch off and the driver door closed, press and hold the M1 or M2 switch. The main body ECU (driver side junction block assembly) will enter electrical key transmitter sub-assembly or door control transmitter assembly recognition code registration mode to allow a key to be linked to mirror surface memory position.

HINT:

If the memory switch is released before entering registration mode, the memory switch will not enter registration mode.

(c) When the manual door lock switch is pressed, check that the buzzer of the front power seat switch LH sounds once (0.5 seconds).

Main Body

Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
Mem SW No. w/KeyID1	Switch linked with key ID1 / NONE, MEM SW1, MEM SW2, or MEM SW3*	NONE: No switches linked with key ID1 MEM SW1: M1 linked with key ID1 MEM SW2: M2 linked with key ID1 MEM SW3: M3 linked with key ID1*	-
Mem SW No. w/KeyID2	Switch linked with key ID2 / NONE, MEM SW1, MEM SW2, or MEM SW3*	NONE: No switches linked with key ID2 MEM SW1: M1 linked with key ID2 MEM SW2: M2 linked with key ID2 MEM SW3: M3 linked with key ID2*	-
Mem SW No. w/KeyID3	Switch linked with key ID3 / NONE, MEM SW1, MEM SW2, or MEM SW3*	NONE: No switches linked with key ID3 MEM SW1: M1 linked with key ID3 MEM SW2: M2 linked with key ID3 MEM SW3: M3 linked with key ID3*	-
Mem SW No. w/KeyID4	Switch linked with key ID4 / NONE, MEM SW1, MEM SW2, or MEM SW3*	NONE: No switches linked with key ID4 MEM SW1: M1 linked with key ID4 MEM SW2: M2 linked with key ID4 MEM SW3: M3 linked with key ID4*	-
Mem SW No. w/KeyID5	Switch linked with key ID5 / NONE, MEM SW1, MEM SW2, or MEM SW3*	NONE: No switches linked with key ID5 MEM SW1: M1 linked with key ID5 MEM SW2: M2 linked with key ID5 MEM SW3: M3 linked with key ID5*	-
Mem SW No. w/KeyID6	Switch linked with key ID6 / NONE, MEM SW1, MEM SW2, or MEM SW3*	NONE: No switches linked with key ID6 MEM SW1: M1 linked with key ID6 MEM SW2: M2 linked with key ID6 MEM SW3: M3 linked with key ID6*	-
Mem SW No. w/KeyID7	Switch linked with key ID7 / NONE, MEM SW1, MEM SW2, or MEM SW3*	NONE: No switches linked with key ID7 MEM SW1: M1 linked with key ID7 MEM SW2: M2 linked with key ID7 MEM SW3: M3 linked with key ID7*	-

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

OK:

Data List shows that the key ID has been linked to a switch (M1 or M2).

GO TO STEP 10

8.	CHECK MEMORY CALL FUNCTION

(a) Perform a wireless door unlock operation and check that opening the driver door causes the following:

The buzzer sounds for 0.1 seconds.
The mirror surface position automatically moves to a stored position.
OK:

Memory call function is normal.

USE SIMULATION METHOD TO CHECK

GO TO OTHER FLOW CHART

9.	PERFORM ACTIVE TEST USING TECHSTREAM

(a) Enter the following menus: Body Electrical / Driver Seat / Active Test.

(b) Perform Active Test according to the display on the Techstream.

Driver Seat

Tester Display	Test Part	Control Range	Diagnostic Note
Buzzer	Buzzer built into the position control ECU and switch	ON or OFF	-

OK:

The buzzer sounds.

Result	Proceed to
OK (w/ Smart Key System)	A
OK (w/o Smart Key System)	B
NG	C

REPLACE MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK ASSEMBLY)

REPLACE FRONT POWER SEAT SWITCH LH

10.	REPLACE MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK ASSEMBLY)

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

11.	PERFORM MEMORY REGISTRATION

(a) After performing any of the following procedures to link the key and a switch, check the Data List to confirm that the key and switch have been linked.

HINT:

If the memory switch is released before entering registration mode, the memory switch will not enter registration mode.

(c) When the manual door lock switch is pressed, check that the buzzer of the front power seat switch LH sounds once (0.5 seconds).

Main Body

Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
Mem SW No. w/KeyID1	Switch linked with key ID1 / NONE, MEM SW1, MEM SW2, or MEM SW3*	NONE: No switches linked with key ID1 MEM SW1: M1 linked with key ID1 MEM SW2: M2 linked with key ID1 MEM SW3: M3 linked with key ID1*	-
Mem SW No. w/KeyID2	Switch linked with key ID2 / NONE, MEM SW1, MEM SW2, or MEM SW3*	NONE: No switches linked with key ID2 MEM SW1: M1 linked with key ID2 MEM SW2: M2 linked with key ID2 MEM SW3: M3 linked with key ID2*	-
Mem SW No. w/KeyID3	Switch linked with key ID3 / NONE, MEM SW1, MEM SW2, or MEM SW3*	NONE: No switches linked with key ID3 MEM SW1: M1 linked with key ID3 MEM SW2: M2 linked with key ID3 MEM SW3: M3 linked with key ID3*	-
Mem SW No. w/KeyID4	Switch linked with key ID4 / NONE, MEM SW1, MEM SW2, or MEM SW3*	NONE: No switches linked with key ID4 MEM SW1: M1 linked with key ID4 MEM SW2: M2 linked with key ID4 MEM SW3: M3 linked with key ID4*	-
Mem SW No. w/KeyID5	Switch linked with key ID5 / NONE, MEM SW1, MEM SW2, or MEM SW3*	NONE: No switches linked with key ID5 MEM SW1: M1 linked with key ID5 MEM SW2: M2 linked with key ID5 MEM SW3: M3 linked with key ID5*	-
Mem SW No. w/KeyID6	Switch linked with key ID6 / NONE, MEM SW1, MEM SW2, or MEM SW3*	NONE: No switches linked with key ID6 MEM SW1: M1 linked with key ID6 MEM SW2: M2 linked with key ID6 MEM SW3: M3 linked with key ID6*	-
Mem SW No. w/KeyID7	Switch linked with key ID7 / NONE, MEM SW1, MEM SW2, or MEM SW3*	NONE: No switches linked with key ID7 MEM SW1: M1 linked with key ID7 MEM SW2: M2 linked with key ID7 MEM SW3: M3 linked with key ID7*	-

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

OK:

The Data List shows that the key ID has been linked to a switch (M1 or M2).

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

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