Toyota Tundra. Manual — part 442

b. Techstream

Main body

MAIN BODY TECHSTREAM DATA LIST

OK: On tester screen, each item changes between ON and OFF according to above chart.

NG: Go to step 5

OK: Go to Next Step

3. INSPECT OUTER REAR VIEW MIRROR LH

a. Remove the mirror LH (see REMOVAL ).

b. Apply battery voltage and check the operation of the power mirror.

OK

OUTER REAR VIEW MIRROR LH MEASUREMENT CONDITION SPECIFIED
CONDITION CHART

Tester Display

Measurement Item/Range

Normal Condition

Diagnostic

Note

Mirror selection

SW (Left)

Mirror master switch signal for
LH mirror / ON or OFF

ON: Switch is in L position
OFF: Switch is OFF or in R
position

-

Mirror position

SW (Right)

Mirror control switch signal
(RIGHT) / ON or OFF

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

-

Mirror position

SW (Left)

Mirror control switch signal
(LEFT) / ON or OFF

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) / ON or OFF

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

-

Mirror position

SW (Down)

Mirror control switch signal
(DOWN) / ON or OFF

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

-

Measurement Condition

Specified Condition

Battery positive (+) --> Terminal 10 (MV)

Battery negative (-) --> Terminal 11 (M+)

Turns upward (A)

Battery negative (-) --> Terminal 10 (MV)

Battery positive (+) --> Terminal 11 (M+)

Turns downward (B)

Battery positive (+) --> Terminal 12 (MH)

Battery negative (-) --> Terminal 11 (M+)

Turns left (C)

Battery negative (-) --> Terminal 12 (MH)

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Mirror - Tundra

Fig. 15: Inspecting Outer Rear View Mirror LH
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NG: REPLACE OUTER REAR VIEW MIRROR LH (see REMOVAL )

OK: Go to Next Step

4. CHECK HARNESS AND CONNECTOR (OUTER MIRROR CONTROL ECU - OUTER REAR

VIEW MIRROR LH)

a. Disconnect the N8 ECU connector.

b. Disconnect the N5 mirror connector.

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

Standard resistance

HARNESS AND CONNECTOR (OUTER MIRROR CONTROL ECU - OUTER REAR
VIEW MIRROR LH) TESTER CONNECTION SPECIFIED CONDITION CHART

Battery positive (+) --> Terminal 11 (M+)

Turns right (D)

Tester Connection

Condition Specified Condition

N8-18 (M+L) - N5-11 (M+)

Always

Below 1 ohms

N8-19 (MHL) - N5-12 (MH)
N8-20 (MVL) - N5-10 (MV)

N5-11 (M+) - Body ground

Always

10 kohms or higher

N5-12 (MH) - Body ground

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Mirror - Tundra

Fig. 16: Identifying N8 ECU And N5 Mirror Connector Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: REPLACE OUTER MIRROR CONTROL ECU (See DISASSEMBLY )

5. INSPECT OUTER MIRROR SWITCH ASSEMBLY

a. Remove the switch (see REMOVAL ).

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

Standard resistance

OUTER MIRROR SWITCH ASSEMBLY TESTER CONNECTION SPECIFIED
CONDITION CHART

N5-10 (MV) - Body ground

Tester Connection

Switch Condition

Specified Condition

3 (M+) - 2 (E)

UP switch pushed

100 ohms

DOWN switch pushed

470 ohms

LEFT switch pushed

800 ohms

RIGHT switch pushed

250 ohms

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Mirror - Tundra

Fig. 17: Inspecting Outer Mirror Switch Assembly
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NG: REPLACE OUTER MIRROR SWITCH ASSEMBLY (see REMOVAL )

OK: Go to Next Step

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

a. Disconnect the J4 ECU connector.

b. Disconnect the L6 switch connector.

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

Standard resistance

HARNESS AND CONNECTOR (OUTER MIRROR SWITCH - MAIN BODY ECU)
TESTER CONNECTION SPECIFIED CONDITION CHART

1 (MSE) - 2 (E)

No switches pushed

10 kohms or higher

L switch pushed

100 ohms

Tester Connection

Condition Specified Condition

J4-2 (MIRE) - L6-2 (E)

Always

Below 1 ohms

J4-11 (MIRB) - L6-3 (M+)

Always

Below 1 ohms

J4-12 (MIRS) - L6-1 (MSW) Always

Below 1 ohms

L6-3 (M+) - Body ground

Always

10 kohms or higher

L6-2 (E) - Body ground

Always

10 kohms or higher

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Mirror - Tundra