Toyota Venza: Wireless-linked Return Function does not Operate

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

DESCRIPTION

When the vehicle doors are unlocked through wireless unlock or entry unlock*1 operation, the certification ECU (smart key ECU assembly)*1 or main body ECU (driver side junction block assembly) sends the key ID signal and memory call request signal to the main body ECU (driver side junction block assembly). When the main body ECU (driver side junction block assembly) receives the signal and the driver door is opened, the ECU sends the memory call command signal for the received key ID to each outer mirror control ECU assembly. On receiving the memory call command signal, each outer mirror control ECU assembly moves the mirror surface to the stored position.

*1: Smart Key System

PROCEDURE

1.	CHECK MEMORY CALL FUNCTION (MEMORY REGISTRATION)

(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) 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.

(f) With the ignition switch off and the driver side 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.

(g) 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).

GO TO OTHER DIAGNOSIS PROCEDURE (Wireless Transmitter Memory Function does not Operate)

2.	CHECK MEMORY CALL FUNCTION

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

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

Result	Proceed to
The memory call function does not operate together with wireless door unlock operation only.	A
The memory call function does not operate together with entry unlock operation only.*	B
The memory call function does not operate at all.	C

*: w/ Smart Key System

GO TO STEP 10

GO TO STEP 17

3.	CHECK WIRELESS DOOR LOCK CONTROL FUNCTIONS

(a) Check wireless door lock control operation (w/ Smart Key System) (See page )

(b) Check wireless door lock control operation (w/o Smart Key System) (See page ).

Result	Proceed to
Wireless door lock control operation is normal	A
Wireless door lock control operation (w/ Smart Key System) is not normal	B
Wireless door lock control operation (w/o Smart Key System) is not normal	C

GO TO WIRELESS DOOR LOCK CONTROL SYSTEM (w/ Smart Key System) (PROBLEM SYMPTOMS TABLE)

GO TO WIRELESS DOOR LOCK CONTROL SYSTEM (w/o Smart Key System)

4.	CHECK MEMORY AND SEAT RESTORING OPERATION (POWER SEAT CONTROL SYSTEM)

(a) Check memory and seat restoring operation (See page ).

OK:

Memory and seat restoring operations are normal.

GO TO STEP 7

5.	REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY

(a) Replace the outer mirror control ECU assembly (driver door) and outer mirror control ECU assembly (front passenger door) (See page ).

6.	CHECK MEMORY CALL FUNCTION

(a) Perform registration for memory call function (See page ).

(b) Perform a wireless door unlock operation and check that opening the driver side 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.

END (OUTER MIRROR CONTROL ECU ASSEMBLY WAS DEFECTIVE)

REPLACE MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK ASSEMBLY)

7.	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 Techstream.

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)

GO TO LIGHTING SYSTEM (Door Courtesy Switch Circuit)

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

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

9.	CHECK MEMORY CALL FUNCTION

(a) Perform a wireless door unlock operation and check that opening the driver side 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.

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

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

10.	CHECK SMART KEY SYSTEM (ENTRY FUNCTION)

(a) Check the smart key system operation (See page ).

OK:

Smart key system operation is normal.

GO TO SMART KEY SYSTEM (PROBLEM SYMPTOMS TABLE)

11.	CHECK MEMORY AND SEAT RESTORING OPERATION (POWER SEAT CONTROL SYSTEM)

(a) Check memory and seat restoring operation (See page ).

OK:

Memory and seat restoring operation is normal.

GO TO STEP 14

12.	REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY

(a) Replace the outer mirror control ECU assembly (driver door) and outer mirror control ECU assembly (front passenger door) (See page ).

13.	CHECK MEMORY CALL FUNCTION

(a) Perform registration for memory call function (See page ).

(b) Perform a wireless door unlock operation and check that opening the driver side 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.

END (OUTER MIRROR CONTROL ECU ASSEMBLY WAS DEFECTIVE)

REPLACE MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK ASSEMBLY)

14.	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)

OK:

ON or OFF appears on the Techstream.

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)

GO TO LIGHTING SYSTEM (Door Courtesy Switch Circuit)

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

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

16.	CHECK MEMORY CALL FUNCTION

(a) Perform registration for memory call function (See page ).

(b) Perform a wireless door unlock operation and check that opening the driver side 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.

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

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

17.	CHECK MEMORY CALL FUNCTION

(a) Perform a wireless door unlock operation and check that opening the driver side 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.

GO TO STEP 21

18.	CHECK REACTIVATION FUNCTION

(a) Turn the ignition switch ON.

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

Text in Illustration

*a	Turn to Left Fully

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

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

Text in Illustration

*a	Turn to Right Fully

(f) Press the M1 switch.

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

OK:

Mirror function is normal.

GO TO STEP 24

19.	REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY

(a) Replace the outer mirror control ECU assembly (driver door) and outer mirror control ECU assembly (front passenger door) (See page ).

20.	CHECK MEMORY CALL FUNCTION

(a) Perform registration for memory call function (See page ).

(b) Perform a wireless door unlock operation and check that opening the driver side 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.

END (OUTER MIRROR CONTROL ECU ASSEMBLY WAS DEFECTIVE)

REPLACE MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK ASSEMBLY)

21.	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)

OK:

ON or OFF appears on the Techstream.

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)

GO TO LIGHTING SYSTEM (Door Courtesy Switch Circuit)

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

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

23.	CHECK MEMORY CALL FUNCTION

(a) Perform registration for memory call function (See page ).

(b) Perform a wireless door unlock operation and check that opening the driver side 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.

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

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

24.	CHECK ELECTRICAL REMOTE CONTROL MIRROR FUNCTION

(a) Check electrical remote control mirror function (See page ).

OK:

Electrical remote control mirror function is normal.

REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY

GO TO OTHER DIAGNOSIS PROCEDURE (PROBLEM SYMPTOMS TABLE)

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