Toyota RAV4 manuals

Toyota Sienna Service Manual: Inspection

1. Inspect starter assembly

NOTICE: These tests must be performed within 3 to 5 seconds to avoid burning out the coil.

Inspect starter assembly

(a) Perform the pull-in test.

(1) Disconnect the lead wire from terminal C.

(2) Connect the battery to the magnetic switch as shown in the illustration. Check that the clutch pinion gear extends.

If the clutch pinion gear does not move, replace the magnetic switch.

Inspect starter assembly

(b) Perform the hold-in test.

(1) Maintain the battery connections in step (a), but disconnect the negative (-) lead from terminal C. Check that the pinion gear remains extended.

If the clutch pinion gear returns inward, replace the magnetic switch.

Inspect starter assembly

(c) Check the clutch pinion gear return.

(1) Disconnect the negative (-) lead from the switch body. Check that the clutch pinion gear returns.

If the clutch pinion gear does not return, replace the magnetic switch.

Inspect starter assembly

(d) Perform the no-load performance test.

(1) Connect the lead wire to terminal C. Make sure that the lead is not grounded.

(2) Clamp the starter in a vise.

(3) Connect the battery and an ammeter to the starter as shown in the illustration.

(4) Check that the starter rotates smoothly and steadily with the clutch pinion gear extended.

Check that the ammeter reads the specified current.

Specified current: 90 A or less at 11.5 V

2. INSPECT REPAIR SERVICE STARTER KIT

INSPECT REPAIR SERVICE STARTER KIT

(a) Check the plunger.

(1) Push in the plunger and check that it returns quickly to its original position.

If necessary, replace the repair service starter kit.

INSPECT REPAIR SERVICE STARTER KIT

(b) Check if the pull-in coil has an open circuit.

(1) Measure the resistance between terminals 50 and C.

Resistance: Below 1 Ω

If the result is not as specified, replace the repair service starter kit.

 INSPECT REPAIR SERVICE STARTER KIT

(c) Check if the hold-in coil has an open circuit.

(1) Measure the resistance between terminal 50 and the switch body.

Resistance: Below 2 Ω

If the result is not as specified, replace the repair service starter kit.

3. INSPECT STARTER ARMATURE ASSEMBLY

 INSPECT STARTER ARMATURE ASSEMBLY

(a) Measure if the commutator has an open circuit.

(1) Check the resistance between the segments of the commutator.

Resistance: Below 1 Ω

If the result is not as specified, replace the armature assembly.

INSPECT STARTER ARMATURE ASSEMBLY

(b) Check if the commutator is grounded.

(1) Measure the resistance between the commutator and armature coil core.

Resistance: 10 kΩ or higher

If the result is not as specified, replace the armature assembly

(c) Check the commutator for contamination and burns on its surface.

If the surface is dirty or burnt, correct it with sandpaper (No. 400) or a lathe.

INSPECT STARTER ARMATURE ASSEMBLY

(d) Using a vernier caliper, measure the commutator's length.

Standard length: 3.3 to 4.0 mm (0.1299 to 0.1575 in.) If the length is greater than the maximum, replace the starter armature.

4. INSPECT STARTER COMMUTATOR END FRAME ASSEMBLY

INSPECT STARTER COMMUTATOR END FRAME ASSEMBLY

(a) Using a vernier caliper, measure the brush length.

Specified length: 4.0 to 9.0 mm (0.158 to 0.354 in.) If the length is less than the minimum, replace the starter commutator end frame.

 INSPECT STARTER COMMUTATOR END FRAME ASSEMBLY

(b) Check the brush insulation.

(1) Measure the resistance between the positive (+) and negative (-) brush.

Resistance: 10 kΩ or higher If the result is not as specified, repair or replace starter commutator end frame.

5. INSPECT REPAIR SERVICE STARTER KIT

INSPECT REPAIR SERVICE STARTER KIT

(a) Check the starter clutch.

(1) Rotate the clutch pinion gear counterclockwise and check that it turns freely. Try to rotate the clutch pinion gear clockwise and check that it locks.

If necessary, replace the service starter kit.

Disassembly
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Reassembly
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