Toyota Tundra Service Manual: Power Mirror Surface Position is not Memorized

Toyota Tundra Service Manual / Vehicle Interior / Mirror / Power Mirror Control System(w/ Memory) / Power Mirror Surface Position is not Memorized

DESCRIPTION

When the seat memory switch is operated, the switch input signal is sent via CAN communication from the outer mirror control ECU assembly LH to the main body ECU (multiplex network body ECU). The main body ECU (multiplex network body ECU) then sends the memorization request or recall request signals to the outer mirror control ECU assembly LH and outer mirror control ECU assembly RH via CAN communication. The outer mirror control ECU assembly LH and outer mirror control ECU assembly RH memorize the mirror position when a memorization request signal is received, and move the mirror to the memorized position when a recall request signal is received.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

First perform the communication function inspections in How to Proceed with Troubleshooting to confirm that there are no CAN communication malfunctions before troubleshooting this problem.

Click here

PROCEDURE

1.

CHECK OUTER REAR VIEW MIRROR ASSEMBLY FUNCTION

(a) Check that the mirror operates.

Click here

OK:

Mirror operates normally.

Result

Proceed to

OK

A

NG (Driver side outer rear view mirror assembly does not operate)

B

NG (Front passenger side outer rear view mirror assembly does not operate)

C
B

GO TO OTHER FLOWCHART (Power Mirror cannot be Adjusted with Power Mirror Switch)

C

GO TO OTHER FLOWCHART (Power Mirror cannot be Adjusted with Power Mirror Switch)

A

2.

CHECK SEAT MEMORY SWITCH (SEAT POSITION MEMORY FUNCTION)

(a) Perform a seat memory operation properly.

Click here

(b) When any seat memory switch (M1 or M2 switch) is pressed, check that the driver side seat moves to the memorized position.

OK:

Driver side seat moves to memorized position.

NG

GO TO FRONT POWER SEAT CONTROL SYSTEM

OK

3.

READ VALUE USING TECHSTREAM (MIRROR MEMORY)

(a) Using the Techstream, read the Data List.

Click here

(1) for LH side:

Mirror L

Tester Display

Measurement Item/Range

Normal Condition

Diagnostic Note

Mirror Memory No.1

Mirror position memorized in memory switch M1 / OFF or ON

OFF: Not memorized

ON: Memorized

-

Mirror Memory No.2

Mirror position memorized in memory switch M2 / OFF or ON

OFF: Not memorized

ON: Memorized

-

(2) for RH side:

Mirror R

Tester Display

Measurement Item/Range

Normal Condition

Diagnostic Note

Mirror Memory No.1

Mirror position memorized in memory switch M1 / OFF or ON

OFF: Not memorized

ON: Memorized

-

Mirror Memory No.2

Mirror position memorized in memory switch M2 / OFF or ON

OFF: Not memorized

ON: Memorized

-

OK:

The display is as specified in the normal condition column.

Result

Proceed to

LH side mirror position cannot be memorized

A

LH side mirror position memory exists but cannot be recalled

B

RH side mirror position cannot be memorized

C

RH side mirror position memory exists but cannot be recalled

D

Both LH side mirror position and RH side mirror position cannot be memorized

E
B

REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY LH

C

GO TO STEP 6

D

REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY RH

E

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

A

4.

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

(a) Disconnect the N5 outer rear view mirror assembly LH connector.

(b) Disconnect the N13 outer mirror control ECU assembly LH connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

N5-18 (VC) - N13-5 (LVC)

Always

Below 1 Ω

N5-16 (HSRL) - N13-13 (HSSR)

Always

Below 1 Ω

N5-17 (VSRL) - N13-6 (VSSR)

Always

Below 1 Ω

N5-15 (E1) - N13-14 (LE1)

Always

Below 1 Ω

N5-18 (VC) or N13-5 (LVC) - Body ground

Always

10 kΩ or higher

N5-16 (HSRL) or N13-13 (HSSR) - Body ground

Always

10 kΩ or higher

N5-17 (VSRL) or N13-6 (VSSR) - Body ground

Always

10 kΩ or higher

N5-15 (E1) or N13-14 (LE1) - Body ground

Always

10 kΩ or higher
NG

REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

5.

CHECK OUTER REAR VIEW MIRROR ASSEMBLY LH

(a) Temporarily replace the outer rear view mirror assembly LH with a new or known good one.

Click here

(b) Check that the memory and reactivation function operates.

Click here

OK:

Memory and reactivation function operates normally.

OK

END (OUTER REAR VIEW MIRROR ASSEMBLY LH WAS DEFECTIVE)
NG

REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY LH

6.

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

(a) Disconnect the M6 outer rear view mirror assembly RH connector.

(b) Disconnect the M12 outer mirror control ECU assembly RH connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

M6-18 (VC) - M12-5 (RVC)

Always

Below 1 Ω

M6-16 (HSSR) - M12-13 (HSSR)

Always

Below 1 Ω

M6-17 (VSSR) - M12-6 (VSSR)

Always

Below 1 Ω

M6-15 (E1) - M12-14 (RE1)

Always

Below 1 Ω

M6-18 (VC) or M12-5 (RVC) - Body ground

Always

10 kΩ or higher

M6-16 (HSSR) or M12-13 (HSSR) - Body ground

Always

10 kΩ or higher

M6-17 (VSSR) or M12-6 (VSSR) - Body ground

Always

10 kΩ or higher

M6-15 (E1) or M12-14 (RE1) - Body ground

Always

10 kΩ or higher
NG

REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

7.

CHECK OUTER REAR VIEW MIRROR ASSEMBLY RH

(a) Temporarily replace the outer rear view mirror assembly RH with a new or known good one.

Click here

(b) Check that the memory and reactivation function operates.

Click here

OK:

Memory and reactivation function operates normally.

OK

END (OUTER REAR VIEW MIRROR ASSEMBLY RH WAS DEFECTIVE)
NG

REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY RH

    Power Mirror cannot be Adjusted with Power Mirror Switch

    Power Mirrors do not Return to Memorized Position

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