Toyota Tundra. Manual — part 440

If the result is not as specified, there may be a malfunction on the wire harness side.

c. Reconnect the N7 ECU connector.

d. Measure the voltage of the connector.

OUTER MIRROR CONTROL ECU TERMINALS REFERENCE CHART

(GND)

source)

N7-4 (ACC) - N7-9

(GND)

Y-W-B

Ignition power supply

Ignition switch

LOCK

Below 1 V

Ignition switch

ON

11 to 14 V

Terminal No.

(Symbols)

Wiring

Color

Terminal

Description

Condition

Specified

Condition

N7-1 (MR+) -

N7-9 (GND)

P-W-B

Mirror retract motor

output (retracting)

Mirror retract switch ON

(Outer rear view mirror LH

is retracting)

11 to 14 V

N7-2 (MR-) -

N7-9 (GND)

V-W-B

Mirror retract motor

output (retracting)

Mirror retract switch OFF

(Outer rear view mirror LH

is retracting)

11 to 14 V

N7-5 (MR+) -

N7-9 (GND)

LG - W-

B

Mirror retract motor

output (retracting)

Mirror retract switch ON

(Outer rear view mirror RH

is retracting)

11 to 14 V

N7-6 (MR-) -

N7-9 (GND)

BR - W-

B

Mirror retract motor

output (retracting)

Mirror retract switch OFF

(Outer rear view mirror RH

is retracting)

11 to 14 V

N8-18(M+L)-

N7-9(GND)

P-W-B

Mirror motor output

Mirror master switch L,

Mirror control switch OFF

Below 1 V

Mirror master switch L,

Mirror control switch UP or

LEFT

Below 1 V

Mirror master switch L,

Mirror control switch

DOWN or RIGHT

11 to 14 V

N8-19(MHL)-

N7-9 (GND)

B-W-B

Mirror motor output

Mirror master switch L,

Mirror control switch OFF

Below 1 V

Mirror master switch L,

Mirror control switch

RIGHT

Below 1 V

Mirror master switch L,

Mirror control switch LEFT

11 to 14 V

N8-20 (MVL) -

Y-W-B Mirror motor output

Mirror master switch L,

Mirror control switch OFF

Below 1 V

Mirror master switch L,

Mirror control switch

Below 1 V

2009 Toyota Tundra

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If the result is not as specified, the ECU may have a malfunction.

N7-9 (GND)

DOWN

Mirror master switch L,

Mirror control switch UP

11 to 14 V

N8-38 (M+R) -

N7-9 (GND)

R-W-B

Mirror motor output

Mirror master switch R,

Mirror control switch OFF

Below 1 V

Mirror master switch R,

Mirror control switch UP or

LEFT

Below 1 V

Mirror master switch R,

Mirror control switch

DOWN or RIGHT

11 to 14 V

N8-39 (MHR) -

N7-9 (GND)

O-W-B Mirror motor output

Mirror master switch R,

Mirror control switch OFF

Below 1 V

Mirror master switch R,

Mirror control switch

RIGHT

Below 1 V

Mirror master switch R,

Mirror control switch LEFT

11 to 14 V

N8-40 (MVR) -

N7-9 (GND)

G-W-B Mirror motor output

Mirror master switch R,

Mirror control switch OFF

Below 1 V

Mirror master switch R,

Mirror control switch

DOWN

Below 1 V

Mirror master switch R,

Mirror control switch UP

11 to 14 V

N8-4 (VSR) -

N8 - 3 (E1)

L-BR

Vertical direction

position signal

Mirror master switch R or L

Mirror control switch UP or

DOWN

Voltage fluctuates

between 0 and 5 V

N8-5 (HSRL) -

N8 - 3 (E1)

W-BR

Horizontal direction

position signal

Mirror master switch R or L

Mirror control switch

RIGHT or LEFT

Voltage fluctuates

between 0 and 5 V

N8-2 (VC) - N8

- 3 (E1)

LG-BR

Power source for

mirror position

sensor

Ignition switch LOCK

during sleep mode

Below 1 V

Ignition switch ON

3.5 to 5.5 V

N8-24 (VSSR) -

N8-23 (E1)

P-BR

Vertical direction

position signal

Mirror master switch R or L

Mirror control switch UP or

DOWN

Voltage fluctuates

between 0 and 5 V

N8-25 (HSRR) -

N8-23 (E1)

B-BR

Horizontal direction

position signal

Mirror master switch R or L

Mirror control switch

RIGHT or LEFT

Voltage fluctuates

between 0 and 5 V

N8-22 (VC) -

N8 - 23 (E1)

GR-BR

Power source for

mirror position

sensor

Ignition switch LOCK

during sleep mode

Below 1 V

Ignition switch ON

3.5 to 5.5 V

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Mirror - Tundra

2. CHECK MAIN BODY ECU

Fig. 13: Identifying Main Body ECU Connector Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

a. Disconnect the DE, DA and DD ECU connectors.

b. Measure the voltage and resistance of the wire harness side connectors.

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2009 ACCESSORIES AND EQUIPMENT Mirror - Tundra

VOLTAGE AND RESISTANCE OF THE WIRE HARNESS SIDE CONNECTORS
TERMINALS REFERENCE CHART

If the result is not as specified, there may be a malfunction on the wire harness side.

c. Reconnect the DE, DA and DD ECU connectors.

d. Measure the voltage of the connectors.

VOLTAGE AND RESISTANCE OF THE WIRE HARNESS SIDE CONNECTORS
TERMINALS REFERENCE CHART

Terminal No. (Symbols)

Wiring Color

Terminal

Description

Condition

Specified

Condition

DE-13 (BECU) - Body

ground

GR - Body

ground

BECU power supply Always

11 to 14 V

DA-1 (ACC) - Body

ground

B - Body ground ACC power supply

Always

11 to 14 V

DA-1 (IG) - Body ground B - Body ground

IG power supply

Always

11 to 14 V

DD-62 (GND1) - Body

ground

W-B - Body

ground

Body ground

Always

Below 1 ohms

Terminal No.

(Symbols)

Wiring

Color

Terminal Description

Condition

Specified

Condition

J3-6 (RET) - DD-

62 (GND1)

V - W-B

Mirror retract motor

output (retracting)

Mirror retract switch ON

11 to 14 V

J3-6 (RET) - DD-

62 (GND1)

V - W-B

Mirror retract motor

output (retracting)

Mirror retract switch OFF

Below 1 V

J4-11 (MIRB) -

J4-2 (MIRE)

R - GR

Mirror motor output

Mirror master switch L

11 to 14 V

Mirror master switch R

11 to 14 V

Mirror master switch OFF

Below 1 V

J4-12 (MIRS) -

J4-2 (MIRE)

L - GR

Mirror motor output

Mirror master switch L,

Mirror control switch

RIGHT

11 to 14 V

Mirror master switch L,

Mirror control switch LEFT

11 to 14 V

Mirror master switch L,

Mirror control switch

DOWN

11 to 14 V

Mirror master switch L,

Mirror control switch UP

11 to 14 V

Mirror master switch R,

Mirror control switch

RIGHT

11 to 14 V

Mirror master switch R,

Mirror control switch LEFT

11 to 14 V

Mirror master switch R,

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Mirror - Tundra