Toyota Tundra. Manual — part 2368

Fig. 37: Measuring Brush Length
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

4

INSPECT STARTER BRUSH HOLDER ASSEMBLY

a

Inspect the insulation

1

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

Standard Resistance

RESISTANCE SPECIFIED CONDITION

Fig. 38: Measuring Starter Brush Holder Resistance
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

If the result is not as specified, replace the brush holder assembly

b

Inspect the load of the brush spring

1

Take the pull scale reading immediately after the brush spring separates from the brush

Standard spring installed load:

Tester Connection

Condition Specified Condition

Positive (+) brush holder - Negative (-) brush holder Always

10 kohms or higher

2009 Toyota Tundra

2009 ENGINE Starting (3UR-FBE) - Tundra

22 to 28 N (2 to 3 kgf, 4.8 to 6.2 lbf)

Minimum spring installed load:

13N(1 kgf, 2.9 lbf)

If the installed load is less than the minimum, replace the starter brush holder assembly

Fig. 39: Checking Brush Spring Load
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

5

INSPECT STARTER YOKE ASSEMBLY

a

Inspect the resistance of the field coil

1

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

Standard Resistance

RESISTANCE SPECIFIED CONDITION

Fig. 40: Measuring Resistance Between Terminal C And Brushes

Tester Connection Condition Specified Condition

Terminal C - Brushes Always

Below 1 ohms

2009 Toyota Tundra

2009 ENGINE Starting (3UR-FBE) - Tundra

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

If the result is not as specified, repair or replace the yoke assembly

2

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

Standard Resistance

RESISTANCE SPECIFIED CONDITION

Fig. 41: Measuring Resistance Between Brushes And Starter Yoke Body
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

If the result is not as specified, repair or replace the yoke assembly

6

INSPECT STARTER CENTER BEARING CLUTCH SUB-ASSEMBLY

a

Check the gear teeth of the planetary gear and starter center bearing clutch for wear or damage If
any planetary gear is damaged, replace the planetary gear assembly If any gear of the starter center
bearing clutch is damaged, replace the starter center bearing clutch sub-assembly

b

Check the movement of the clutch pinion gear

1

Rotate the clutch pinion gear clockwise, and check that it turns freely

2

Try to rotate the clutch pinion gear counterclockwise, and check that it locks If the clutch
pinion gear cannot be turned clockwise smoothly, or does not lock in the counterclockwise
direction, replace the starter center bearing clutch sub-assembly

Tester Connection

Condition Specified Condition

Brushes - Starter yoke body Always

10 kohms or higher

2009 Toyota Tundra

2009 ENGINE Starting (3UR-FBE) - Tundra

Fig. 42: Checking Clutch Pinion Gear Movement
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

7

INSPECT MAGNET STARTER SWITCH ASSEMBLY

a

Inspect the pull-in coil

1

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

Standard Resistance

RESISTANCE SPECIFIED CONDITION

Fig. 43: Measuring Resistance Between Terminal 50 And C
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

If the result is not as specified, replace the starter magnetic switch assembly

b

Inspect the holding coil

1

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

Standard Resistance

RESISTANCE SPECIFIED CONDITION

Tester Connection

Condition Specified Condition

Terminals 50 - Terminal C Always

Below 1 ohms

Tester Connection

Condition Specified Condition

Terminal 50 - Switch body Always

Below 2 ohms

2009 Toyota Tundra

2009 ENGINE Starting (3UR-FBE) - Tundra