Toyota Tundra Service Manual: Power Retractable Mirrors do not Operate with Power Retract Mirror Switch

Toyota Tundra Service Manual / Vehicle Interior / Mirror / Power Mirror Control System(w/ Memory) / Power Retractable Mirrors do not Operate with Power Retract Mirror Switch

DESCRIPTION

When the outer mirror switch assembly (mirror retract switch) is operated, return/retract signals are sent to the main body ECU (multiplex network body ECU). The main body ECU (multiplex network body ECU) sends return/retract signals to the outer mirror control ECU assembly via CAN communication. The outer mirror control ECU assembly returns and retracts the outer rear view mirror assembly based on the received signals.

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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PROCEDURE

1.	READ VALUE USING TECHSTREAM (OUTER MIRROR FOLD SW)

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

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Tester Display

Measurement Item/Range

Normal Condition

Diagnostic Note

Outer Mirror Fold SW

Mirror retract switch signal / ON or OFF

ON: Mirror retract switch is ON (retracting)

OFF: Mirror retract switch is OFF

OK:

On the Techstream screen, ON or OFF is displayed for each item according to the table above.

GO TO STEP 7

2.	CHECK MALFUNCTIONING PARTS

(a) Check the malfunctioning parts.

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Result	Proceed to
Both mirrors are malfunctioning	A
LH side mirror is malfunctioning	B
RH side mirror is malfunctioning	C

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

GO TO STEP 5

3.	INSPECT OUTER REAR VIEW MIRROR ASSEMBLY LH (POWER RETRACT FUNCTION)

(a) Remove the outer rear view mirror assembly LH.

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(b) Inspect the outer rear view mirror assembly LH.

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REPLACE OUTER REAR VIEW MIRROR ASSEMBLY LH

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.

Standard Resistance:

Tester Connection	Condition	Specified Condition
N5-7 (MR) - N13-3 (MR+)	Always	Below 1 Ω
N5-8 (MF) - N13-11 (MR-)	Always	Below 1 Ω
N5-7 (MR) or N13-3 (MR+) - Body ground	Always	10 kΩ or higher
N5-8 (MF) or N13-11 (MR-) - Body ground	Always	10 kΩ or higher

REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY LH

REPAIR OR REPLACE HARNESS OR CONNECTOR

5.	INSPECT OUTER REAR VIEW MIRROR ASSEMBLY RH (POWER RETRACT FUNCTION)

(a) Remove the outer rear view mirror assembly RH.

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(b) Inspect the outer rear view mirror assembly RH.

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REPLACE OUTER REAR VIEW MIRROR ASSEMBLY RH

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.

Standard Resistance:

Tester Connection	Condition	Specified Condition
M6-7 (MR) - M12-3 (MR+)	Always	Below 1 Ω
M6-8 (MF) - M12-11 (MR-)	Always	Below 1 Ω
M6-7 (MR) or M12-3 (MR+) - Body ground	Always	10 kΩ or higher
M6-8 (MF) or M12-11 (MR-) - Body ground	Always	10 kΩ or higher

REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY RH

REPAIR OR REPLACE HARNESS OR CONNECTOR

7.	INSPECT OUTER MIRROR SWITCH ASSEMBLY (MIRROR RETRACT SWITCH)

(a) Remove the outer mirror switch assembly.

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(b) Inspect the outer mirror switch assembly.

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REPLACE OUTER MIRROR SWITCH ASSEMBLY

8.	CHECK HARNESS AND CONNECTOR (OUTER MIRROR SWITCH ASSEMBLY - MAIN BODY ECU [MULTIPLEX NETWORK BODY ECU])

(a) Disconnect the J131 outer mirror switch assembly connector.

(b) Disconnect the J163 main body ECU (multiplex network body ECU) connector.

Standard Resistance:

Tester Connection	Condition	Specified Condition
J131-8 (MF) - J163-14 (RET)	Always	Below 1 Ω
J131-8 (MF) or J163-14 (RET) - Body ground	Always	10 kΩ or higher
J131-4 (E2) - Body ground	Always	10 kΩ or higher

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

REPAIR OR REPLACE HARNESS OR CONNECTOR

Power Mirrors do not Return to Memorized Position

Problem Symptoms Table

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