Toyota Tundra. Manual — part 2382

ACC RELAY

ON-VEHICLE INSPECTION

1

DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL

2

INSPECT MAIN BODY ECU (ACC RELAY)

a

Measure the resistance of the ACC relay circuit

1

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

Fig. 69: Identifying Main Body ECU Connector Terminal (ACC RELAY)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Standard resistance

MAIN BODY ECU (ACC RELAY)

If the result is not as specified, replace the main body ECU

3

CONNECT CABLE TO NEGATIVE BATTERY TERMINAL

NOTE:



Some systems need to be initialized after the cable is reconnected
(see INITIALIZATION ).



After the ignition switch is turned OFF, the navigation system
requires approximately 90 seconds to record various types of
memory and settings. As a result, after turning the ignition switch
OFF, wait 90 seconds or more before disconnecting the cable from
the negative (-) battery terminal.

Tester

Connection

Condition

Specified

Condition

DD47-DD8

When battery voltage is not applied between DD45
and DD62

10 kohms or

higher

When battery voltage is applied between DD45 and
DD62

Below 1 ohms

2009 Toyota Tundra

2009 ENGINE Starting (3UR-FE) - Tundra

ACC CUT RELAY

ON-VEHICLE INSPECTION

1

DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL

2

REMOVE ACC CUT RELAY

a

Remove the clip

b

Detach the 2 clips and remove the cowl side trim board RH

c

Remove the relay

3

INSPECT ACC CUT RELAY

a

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

Standard resistance

ACC CUT RELAY

If the result is not as specified, replace the relay

Fig. 70: Inspecting ACC Cut Relay

NOTE:

Some systems need to be initialized after the cable is reconnected (see
INITIALIZATION ).

NOTE:



Some systems need to be initialized after the cable is reconnected
(see INITIALIZATION ).



After the ignition switch is turned OFF, the navigation system
requires approximately 90 seconds to record various types of
memory and settings. As a result, after turning the ignition switch
OFF, wait 90 seconds or more before disconnecting the cable from
the negative (-) battery terminal.

Tester connection

Condition

Specified Condition

3-4

When battery voltage is not applied to terminals 1 and 2

Below 1 ohms

When battery voltage is applied to terminals 1 and 2

10 kohms or higher

2009 Toyota Tundra

2009 ENGINE Starting (3UR-FE) - Tundra

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

4

INSTALL ACC CUT RELAY

a

Install the relay

b

Attach the 2 clips to install the cowl side trim board RH

c

Install the clip

5

CONNECT CABLE TO NEGATIVE BATTERY TERMINAL

IGNITION SWITCH

COMPONENTS

Fig. 71: Identifying Ignition Switch Replacement Components
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Fig. 72: Identifying Ignition Switch Replacement Components With Torque Specifications - For Manual
Tilt
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NOTE:

Some systems need to be initialized after the cable is reconnected (see
INITIALIZATION ).

2009 Toyota Tundra

2009 ENGINE Starting (3UR-FE) - Tundra

Fig. 73: Identifying Ignition Switch Replacement Components With Torque Specifications - For Manual
Tilt And Telescopic
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Fig. 74: Identifying Ignition Switch Replacement Components With Torque Specifications - For Power
Tilt And Power Telescopic
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

2009 Toyota Tundra

2009 ENGINE Starting (3UR-FE) - Tundra