Toyota Tundra Service Manual: Reverse Shift-linked Function of Power Mirrors does not Operate

Toyota Tundra Service Manual / Vehicle Interior / Mirror / Power Mirror Control System(w/ Memory) / Reverse Shift-linked Function of Power Mirrors does not Operate

DESCRIPTION

The ECM sends the reverse signal to the main body ECU (multiplex network body ECU) via CAN communication. When receiving the reverse signal, the main body ECU (multiplex network body ECU) sends the reverse request signal to each outer mirror control ECU assembly. Each outer mirror control ECU assembly then performs control in response to the reverse signal.

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.

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HINT:

The reverse shift-linked function will not activate when the mirror master switch is in the neutral position (off).

PROCEDURE

1.

CHECK OUTER REAR VIEW MIRROR ASSEMBLY FUNCTION (MEMORY AND MIRROR RESTORING OPERATION)

(a) Check that the mirror operates.

Click here

OK:

Mirror operates normally.

NG

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

OK

2.

CHECK FOR DTC (SFI SYSTEM)

(a) Check for DTCs.

3UR-FBE:

Click here

3UR-FE:

Click here

OK:

DTCs output does not occur.

NG

GO TO SFI SYSTEM

OK

3.

CHECK SHIFT POSITION INDICATOR FUNCTION

(a) Check that the shift position indicator operates.

Click here

OK:

Shift position indicator operates normally.

NG

GO TO METER / GAUGE SYSTEM

OK

4.

CONFIRM MALFUNCTIONING PARTS

(a) Check the malfunctioning outer rear view mirror assembly.

Click here

Result

Proceed to

Both the left and right outer rear view mirror assemblies do not operate

A

Outer rear view mirror assembly LH does not operate

B

Outer rear view mirror assembly RH does not operate

C
A

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

C

GO TO STEP 6

B

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 reverse shift-linked function operates.

Click here

OK:

Reverse shift-linked function operates normally.

OK

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

REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY LH

6.

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 reverse shift-linked function operates.

Click here

OK:

Reverse shift-linked function operates normally.

OK

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

REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY RH

    Problem Symptoms Table

    System Description

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