Toyota Tundra Service Manual: Power Mirror cannot be Adjusted with Power Mirror Switch

Toyota Tundra Service Manual / Vehicle Interior / Mirror / Power Mirror Control System(w/ Memory) / Power Mirror cannot be Adjusted with Power Mirror Switch

DESCRIPTION

When the outer mirror switch assembly (mirror master switch) is operated, right/left selection signals are sent to the main body ECU (multiplex network body ECU). The main body ECU (multiplex network body ECU) sends the received right/left selection signals to the outer mirror control ECU assemblies via CAN communication.

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 SWITCH ASSEMBLY)

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

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Main Body

Tester Display

Measurement Item/Range

Normal Condition

Diagnostic Note

Mirror Selection SW (R)

Mirror master switch signal for RH mirror / ON or OFF

ON: Mirror master switch is in R position

OFF: Mirror master switch is OFF or in L position

-

Mirror Selection SW (L)

Mirror master switch signal for LH mirror / OFF or ON

ON: Mirror master switch is in L position

OFF: Mirror master switch is OFF or in R position

-

Mirror Position SW (R)

Mirror control switch signal (Right) / OFF or ON

ON: RIGHT switch is ON

OFF: Any switch except RIGHT is ON or all switches are OFF

-

Mirror Position SW (L)

Mirror control switch signal (Right) / OFF or ON

ON: LEFT switch is ON

OFF: Any switch except LEFT is ON or all switches are OFF

-

Mirror Position SW (Up)

Mirror control switch signal (Up) / OFF or ON

ON: UP switch is ON

OFF: Any switch except UP is ON or all switches are OFF

-

Mirror Position SW (Dwn)

Mirror control switch signal (Down) / OFF or ON

ON: DOWN switch is ON

OFF: Any switch except DOWN is ON or all switches are OFF

-

OK:

The display is as specified in the normal condition column.

OK

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

NG

2.

INSPECT OUTER MIRROR SWITCH ASSEMBLY

(a) Remove the outer mirror switch assembly.

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(b) Inspect the outer mirror switch assembly.

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NG

REPLACE OUTER MIRROR SWITCH ASSEMBLY

OK

3.

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 J164 main body ECU (multiplex network body ECU) connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

J131-3 (M+) - J164-4 (MIRB)

Always

Below 1 Ω

J131-1 (MSW) - J164-5 (MIRS)

Always

Below 1 Ω

J131-2 (E) - J164-6 (MIRE)

Always

Below 1 Ω

J131-3 (M+) or J164-4 (MIRB) - Body ground

Always

10 kΩ or higher

J131-1 (MSW) or J164-5 (MIRS) - Body ground

Always

10 kΩ or higher

J131-2 (E) or J164-6 (MIRE) - Body ground

Always

10 kΩ or higher
OK

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR
    Parts Location

    Power Mirror Surface Position is not Memorized

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