Last Modified: 11-29-2007 1.6 J
Service Category: Vehicle Exterior Section: Mirror (ext)
Model Year: 2008 Model: Sequoia Doc ID: RM000002Y46007X
Title: MIRROR (EXT): POWER MIRROR CONTROL SYSTEM (w/ Memory): SYSTEM DESCRIPTION (2008 Sequoia)

Power Retractable Mirrors do not Operate with Power Retract Mirror Switch

SYSTEM DESCRIPTION

This circuit detects the conditions of the mirror retract switch.

The outer mirror switch sends information about the operating condition of the mirror retract switch (switch input signals) through the CAN communication line. Then the switch input signals are sent to the outer mirror control ECU.

WIRING DIAGRAM



INSPECTION PROCEDURE

PROCEDURE

1.

CHECK DTC

(a) Use the Techstream to check if the CAN communication system is functioning normally NETWORKING: CAN COMMUNICATION SYSTEM: DIAGNOSIS SYSTEM (2008 Sequoia) .

Result

Result

Proceed to

CAN DTC is not output

A

CAN DTC is output

B

A

2.

READ VALUE USING TECHSTREAM (MIRROR RETRACT 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) According to the display on the Techstream, read the Data List.

Main Body

Tester Display

Measurement Item/Range

Normal Condition

Diagnostic Note

Outer Mirror Fold SW

Mirror retract switch signal / ON or OFF

ON: Switch is on (retracting)

OFF: Switch is off

-

OK:

On the Techstream screen, each item changes between ON and OFF according to above chart.

OK

3.

PERFORM ACTIVE TEST USING TECHSTREAM (MIRROR RETRACT FUNCTION)

(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 / Mirror / Active Test.

(e) According to the display on the Techstream, perform the Active Test.

Mirror

Tester Display

Test Part

Control Range

Diagnostic Note

Mirror Fold

Mirror retract operation

FOLD/OFF

-

Mirror Return

Mirror retract operation

RETURN/OFF

-

Result

Result

Proceed to

Outer rear view mirror operates normally

A

Outer rear view mirror LH does not operate normally

B

Outer rear view mirror RH does not operate normally

C

A

4.

INSPECT OUTER MIRROR SWITCH (MIRROR RETRACT SWITCH)


(a) Remove the switch MIRROR (EXT): OUTER MIRROR SWITCH: REMOVAL (2008 Sequoia) .

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

Standard Resistance:

Tester Connection

Switch Condition

Specified Condition

7 (MR) - 4 (E2)

Pressed (Driving position)

Below 1 Ω

Not pressed

10 kΩ or higher

8 (MF) - 4 (E2)

Pressed (Retracts)

Below 1 Ω

Not pressed

10 kΩ or higher

OK

5.

CHECK HARNESS AND CONNECTOR (OUTER MIRROR SWITCH - MAIN BODY ECU AND BODY GROUND)


(a) Disconnect the H1and H3 ECU connector.

(b) Disconnect the J6 switch connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

J6-4 (E2) - Body ground

Always

Below 1 Ω

J6-7 (MR) - H1-9 (AMR)

Always

Below 1 Ω

J6-7 (MR) - Body ground

Always

10 kΩ or higher

J6-8 (MF) - H3-6 (RET)

Always

Below 1 Ω

J6-8 (MF) - Body ground

Always

10 kΩ or higher

OK

6.

INSPECT OUTER REAR VIEW MIRROR ASSEMBLY LH


(a) Remove the mirror LH MIRROR (EXT): OUTER REAR VIEW MIRROR: REMOVAL (2008 Sequoia) .

(b) Check the retractable mirror's movement.

(1) For each mirror position: Disconnect the battery, set the mirror position by hand, connect the battery, and check the retractable mirror movement.

OK:

Measurement Condition

Mirror Position

Specified Condition

Battery positive (+) → Terminal 7 (MR)

Battery negative (-) → Terminal 8 (MF)

Forward position (A)

Moves from (A) to retracted position (E)

Battery positive (+) → Terminal 8 (MF)

Battery negative (-) → Terminal 7 (MR)

Forward position (A)

Does not move

Battery positive (+) → Terminal 7 (MR)

Battery negative (-) → Terminal 8 (MF)

Position between forward position (A) and driving position (C)

Moves from (B) to retracted position (E)

Battery positive (+) → Terminal 8 (MF)

Battery negative (-) → Terminal 7 (MR)

Position between forward position (A) and driving position (C)

Moves from (B) to forward position (A)

Battery positive (+) → Terminal 7 (MR)

Battery negative (-) → Terminal 8 (MF)

Driving position (C)

Moves from (C) to retracted position (E)

Battery positive (+) → Terminal 8 (MF)

Battery negative (-) → Terminal 7 (MR)

Driving position (C)

Does not move

Battery positive (+) → Terminal 7 (MR)

Battery negative (-) → Terminal 8 (MF)

Position between driving position (C) and retracted position (E)

Moves from (D) to retracted position (E)

Battery positive (+) → Terminal 8 (MF)

Battery negative (-) → Terminal 7 (MR)

Position between driving position (C) and retracted position (E)

Moves from (D) to driving position (C)

Battery positive (+) → Terminal 7 (MR)

Battery negative (-) → Terminal 8 (MF)

Retracted position (E)

Does not move

Battery positive (+) → Terminal 8 (MF)

Battery negative (-) → Terminal 7 (MR)

Retracted position (E)

Moves from (E) to driving position (C)

NOTICE:

  • Disconnect and reconnect the battery once between each mirror position check.
  • The mirror position cannot be changed manually when the battery is connected. To change the mirror position manually, the battery must be disconnected first.

OK

7.

CHECK HARNESS AND CONNECTOR (OUTER REAR VIEW MIRROR LH - OUTER MIRROR CONTROL ECU)


(a) Disconnect the M7 ECU connector.

(b) Disconnect the M5 mirror connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

M5-7 (MR) - M7-1 (MR+)

Always

Below 1 Ω

M5-7 (MR) - Body ground

Always

10 kΩ or higher

M5-8 (MF) - M7-2 (MR-)

Always

Below 1 Ω

M5-8 (MF) - Body ground

Always

10 kΩ or higher

OK

8.

INSPECT OUTER REAR VIEW MIRROR ASSEMBLY RH


(a) Remove the mirror RH MIRROR (EXT): OUTER REAR VIEW MIRROR: REMOVAL (2008 Sequoia) .

(b) Check the retractable mirror's movement.

(1) For each mirror position: Disconnect the battery, set the mirror position by hand, connect the battery, and check the retractable mirror movement.

OK:

Measurement Condition

Mirror Position

Specified Condition

Battery positive (+) → Terminal 7 (MR)

Battery negative (-) → Terminal 8 (MF)

Forward position (A)

Moves from (A) to retracted position (E)

Battery positive (+) → Terminal 8 (MF)

Battery negative (-) → Terminal 7 (MR)

Forward position (A)

Does not move

Battery positive (+) → Terminal 7 (MR)

Battery negative (-) → Terminal 8 (MF)

Position between forward position (A) and driving position (C)

Moves from (B) to retracted position (E)

Battery positive (+) → Terminal 8 (MF)

Battery negative (-) → Terminal 7 (MR)

Position between forward position (A) and driving position (C)

Moves from (B) to forward position (A)

Battery positive (+) → Terminal 7 (MR)

Battery negative (-) → Terminal 8 (MF)

Driving position (C)

Moves from (C) to retracted position (E)

Battery positive (+) → Terminal 8 (MF)

Battery negative (-) → Terminal 7 (MR)

Driving position (C)

Does not move

Battery positive (+) → Terminal 7 (MR)

Battery negative (-) → Terminal 8 (MF)

Position between driving position (C) and retracted position (E)

Moves from (D) to retracted position (E)

Battery positive (+) → Terminal 8 (MF)

Battery negative (-) → Terminal 7 (MR)

Position between driving position (C) and retracted position (E)

Moves from (D) to driving position (C)

Battery positive (+) → Terminal 7 (MR)

Battery negative (-) → Terminal 8 (MF)

Retracted position (E)

Does not move

Battery positive (+) → Terminal 8 (MF)

Battery negative (-) → Terminal 7 (MR)

Retracted position (E)

Moves from (E) to driving position (C)

NOTICE:

  • Disconnect and reconnect the battery once between each mirror position check.
  • The mirror position cannot be changed manually when the battery is connected. To change the mirror position manually, the battery must be disconnected first.

OK

9.

CHECK HARNESS AND CONNECTOR (OUTER REAR VIEW MIRROR RH - OUTER MIRROR CONTROL ECU)


(a) Disconnect the M7 ECU connector.

(b) Disconnect the L6 mirror connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

L6-7 (MR) - M7-5 (MR+)

Always

Below 1 Ω

L6-7 (MR) - Body ground

Always

10 kΩ or higher

L6-8 (MF) - M7-6 (MR-)

Always

Below 1 Ω

L6-8 (MF) - Body ground

Always

10 kΩ or higher

OK