Starting (service Information) Lexus IS F I

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1. REMOVE ENGINE AND TRANSMISSION Refer to «REMOVAL»(/lexus/is-f/i-2007-2014/remont/mechanical/#engine-mechanical-service-information) .
2. REMOVE OIL LEVEL DIPSTICK SUB-ASSEMBLY . Refer to «REMOVAL - Step 2»(/lexus/is-f/i-2007-2014/remont/exhaust/#exhaust-service-information)
3. REMOVE OIL LEVEL DIPSTICK GUIDE SUB-ASSEMBLY . Refer to «REMOVAL - Step 3»(/lexus/is-f/i-2007-2014/remont/exhaust/#exhaust-service-information)
4. REMOVE NO. 1 EXHAUST MANIFOLD HEAT INSULATOR . Refer to «REMOVAL - Step 4»(/lexus/is-f/i-2007-2014/remont/exhaust/#exhaust-service-information)
5. REMOVE EXHAUST MANIFOLD SUB-ASSEMBLY RH . Refer to «REMOVAL - Step 6»(/lexus/is-f/i-2007-2014/remont/exhaust/#exhaust-service-information)
6. REMOVE NO. 3 EXHAUST MANIFOLD HEAT INSULATOR Remove the 3 bolts and No. 3 exhaust manifold heat insulator.
7. REMOVE STARTER ASSEMBLY Detach the 11 claws and remove the terminal upper cover. Disconnect the starter connector. Remove the nut and disconnect the wire harness. Remove the 2 bolts and starter assembly. Remove the nut and terminal lower cover. Remove the flywheel housing side cover.

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1. REMOVE STARTER MAGNETIC SWITCH ASSEMBLY Remove the nut, and disconnect the lead wire from the magnetic switch assembly. Remove the 2 nuts and starter magnetic switch assembly.
2. REMOVE STARTER DRIVE HOUSING ASSEMBLY Using a T30 "TORX" socket wrench, remove the 2 bolts. Pull out the starter yoke assembly and the starter commutator end frame assembly together with the stater armature assembly.
3. REMOVE STARTER COMMUTATOR END FRAME ASSEMBLY Remove the starter pinion drive lever. Remove the 2 screws and starter commutator end frame assembly. NOTE: While holding down the lead wire, remove the starter commutator end frame assembly.
4. REMOVE STARTER ARMATURE ASSEMBLY Using a screwdriver, hold the spring back and disconnect the brush from the starter brush holder assembly. Disconnect the 4 brushes, and remove the starter brush holder assembly. Remove the starter armature assembly from the starter center bearing clutch sub-assembly.
5. REMOVE STARTER YOKE ASSEMBLY Remove the starter yoke assembly from the starter center bearing clutch sub-assembly.
6. REMOVE STARTER ARMATURE PLATE Remove the starter armature plate from the starter center bearing clutch sub-assembly.
7. REMOVE PLANETARY GEAR Remove the 3 planetary gears.

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1. INSPECT STARTER ASSEMBLY NOTE: The following tests must be performed within 5 seconds to prevent the coil from burning out. Perform a pull-in test. Disconnect the field coil wire from terminal C. Connect the battery to the magnetic switch as shown in the illustration. Check that the clutch pinion gear moves outward. If the clutch pinion gear does not move outward, replace the starter magnetic switch assembly. Perform a hold-in test. Disconnect the negative (-) terminal lead from terminal C while maintaining the condition specified for the pull-in test above. Check that the pinion gear remains out. If the clutch pinion gear moves inward, replace the starter magnetic switch assembly. Inspect the clutch pinion gear return. Disconnect the negative (-) lead from the starter body. Check that the clutch pinion gear moves inward. If the clutch pinion gear does not move inward, replace the starter magnetic switch assembly. Perform a no-load performance test. Connect the field coil wire to terminal C with the nut. Make sure that the lead is not grounded. Torque: 6.5 N*m (66 kgf*cm, 57 in.*lbf) Clamp the starter in a vise. Connect the battery and an ammeter to the starter as shown in the illustration. Check that the starter rotates smoothly and steadily while the pinion gear is moving out. Then, measure the current. Standard current 190 A or less at 11.5 V If the current is not as specified, replace the starter assembly.
2. INSPECT STARTER ARMATURE ASSEMBLY Inspect the resistance of the commutator. Measure the resistance between the segments of the commutator. Standard resistance Below 1 ohms If the resistance is not as specified, replace the starter armature assembly. Measure the resistance between the commutator and armature coil core. Standard resistance 10 kohms or higher If the resistance is not as specified, replace the starter armature assembly. Check the surface of the commutator for dirt or burns. If the surface is dirty or burnt, smooth it with 400-grit sandpaper or on a lathe. Using a vernier caliper, measure the commutator diameter. Standard diameter 35.0 mm (1.378 in.) Minimum diameter 34.0 mm (1.339 in.) If the diameter is less than the minimum, replace the starter armature assembly. Using a dial indicator, measure the commutator runout. Maximum runout 0.05 mm (0.0020 in.) If the commutator runout is greater than the maximum, correct it using a lathe. Measure the undercut depth of the commutator. Standard undercut depth 0.7 mm (0.028 in.) Minimum undercut depth 0.2 mm (0.008 in.) If the undercut depth is less than the minimum, correct it with a hacksaw blade.
3. INSPECT STARTER YOKE ASSEMBLY Inspect the resistance of the field coil. Measure the resistance between the lead wire and field coil brush lead. Standard resistance Below 1 ohms If the resistance is not as specified, repair or replace the starter yoke assembly. Measure the resistance between the field coil brush lead and field frame. Standard resistance 10 kohms or higher If the resistance is not as specified, repair or replace the starter yoke assembly.
4. INSPECT BRUSH Using a vernier caliper, measure the brush length. Standard length 15.0 mm (0.590 in.) Minimum length 10.0 mm (0.394 in.) If the brush length is less than the minimum, replace the brush holder and starter yoke assembly.
5. INSPECT STARTER BRUSH HOLDER ASSEMBLY Inspect the insulation. Measure the resistance between the positive (+) and negative (-) brush holders. Standard resistance 10 kohms or higher If the resistance is not as specified, replace the starter brush holder assembly. Inspect the load of the brush spring. Take the pull scale reading immediately after the brush spring separates from the brush. Standard spring installed load 21.5 to 27.5 N (2.2 to 2.8 kgf, 4.8 to 6.2 lbf) If the installed load is less than the minimum, replace the starter brush holder assembly.
6. INSPECT STARTER CENTER BEARING CLUTCH SUB-ASSEMBLY Check the gear teeth of the planetary gear and starter center bearing clutch sub-assembly for wear or damage. If any planetary gear is damaged, replace the planetary gear. If any gear of the starter center bearing clutch sub-assembly is damaged, replace the starter center bearing clutch sub-assembly. Check the movement of the clutch pinion gear. Rotate the clutch pinion gear clockwise, and check that it turns freely. 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.
7. INSPECT STARTER MAGNETIC SWITCH ASSEMBLY Inspect the resistance of the pull-in coil. Measure the resistance between terminals 50 and C. Standard resistance Below 1.0 ohms If the resistance is not as specified, replace the starter magnetic switch assembly. Inspect the resistance of the hold-in coil. Measure the resistance between terminal 50 and the switch body. Standard resistance Below 2.0 ohms If the resistance is not as specified, replace the starter magnetic switch assembly.

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1. INSTALL PLANETARY GEAR Apply high-temperature grease to the planetary gears and pin parts of the planetary shaft, as shown in the illustration. Install the 3 planetary gears.
2. INSTALL STARTER ARMATURE PLATE Insert the starter armature plate to the starter center bearing clutch sub-assembly. NOTE: Check that the tab of the starter armature plate fits over the projection of the starter center bearing clutch sub-assembly.
3. INSTALL STARTER ARMATURE ASSEMBLY Install the starter armature assembly to the starter center bearing clutch sub-assembly.
4. INSTALL STARTER YOKE ASSEMBLY Align the tab of the starter center bearing clutch sub-assembly with the notch of the starter yoke assembly, and install the starter yoke assembly.
5. INSTALL STARTER COMMUTATOR END FRAME ASSEMBLY Install the starter brush holder assembly. Using a screwdriver, hold the brush spring back and connect the brush into the brush holder. Connect the 4 brushes. Align the starter commutator end frame rubber with the groove of the starter yoke assembly. Install the starter commutator end frame assembly with the 2 screws. Torque: 3.8 N*m (39 kgf*cm, 33 in.*lbf)
6. INSTALL STARTER DRIVE HOUSING ASSEMBLY Apply high-temperature grease to the starter pinion drive lever, as shown in the illustration. Install the starter pinion drive lever to the starter center bearing clutch sub-assembly. Align the claw of the starter yoke assembly with the groove inside the starter drive housing assembly. Using a T30 "TORX" socket wrench, install the starter drive housing assembly with the 2 bolts. Torque: 6.0 N*m (61 kgf*cm, 53 in.*lbf)
7. INSTALL STARTER MAGNETIC SWITCH ASSEMBLY Temporarily install the starter magnetic switch assembly by hooking its tip to the upper side of the starter pinion drive lever. Install the 2 nuts. Torque: 7.5 N*m (76 kgf*cm, 66 in.*lbf) Connect the lead wire to the terminal with the nut. Torque: 6.5 N*m (66 kgf*cm, 57 in.*lbf)

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1. INSTALL STARTER ASSEMBLY Install the flywheel housing side cover. Install the terminal lower cover with the nut. Torque: 10 N*m (102 kgf*cm, 7 ft.*lbf) Install the starter assembly with the 2 bolts. Torque: 37 N*m (377 kgf*cm, 27 ft.*lbf) NOTE: Make sure that the flywheel housing cover is as shown in the illustration. Install the wire harness with the nut. Torque: 9.8 N*m (100 kgf*cm, 87 in.*lbf) Connect the starter connector. Install the terminal upper cover with the 11 claws.
2. INSTALL NO. 3 EXHAUST MANIFOLD HEAT INSULATOR Install the No. 3 exhaust manifold heat insulator with the 3 bolts. Torque: 10 N*m (102 kgf*cm, 7 ft.*lbf)
3. INSTALL EXHAUST MANIFOLD SUB-ASSEMBLY RH . Refer to «INSTALLATION - Step 5»(/lexus/is-f/i-2007-2014/remont/exhaust/#exhaust-service-information)
4. INSTALL NO. 1 EXHAUST MANIFOLD HEAT INSULATOR . Refer to «INSTALLATION - Step 7»(/lexus/is-f/i-2007-2014/remont/exhaust/#exhaust-service-information)
5. INSTALL OIL LEVEL DIPSTICK GUIDE SUB-ASSEMBLY . Refer to «INSTALLATION - Step 8»(/lexus/is-f/i-2007-2014/remont/exhaust/#exhaust-service-information)
6. INSTALL OIL LEVEL DIPSTICK SUB-ASSEMBLY . Refer to «INSTALLATION - Step 9»(/lexus/is-f/i-2007-2014/remont/exhaust/#exhaust-service-information)
7. INSTALL ENGINE AND TRANSMISSION Refer to «INSTALLATION»(/lexus/is-f/i-2007-2014/remont/mechanical/#engine-mechanical-service-information) .

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1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL NOTE: When disconnecting the cable, some systems need to be initialized after the cable is reconnected. Refer to «INITIALIZATION»(/lexus/is-f/i-2007-2014/remont/hoistjack/#introduction__initialization) .
2. REMOVE SHIFT LEVER KNOB SUB-ASSEMBLY . Refer to «REMOVAL - Step 4»(/lexus/is-f/i-2007-2014/remont/exteriorinterior-trim/#interior-panels-trim-service-information)
3. REMOVE UPPER NO. 1 CONSOLE PANEL GARNISH . Refer to «REMOVAL - Step 5»(/lexus/is-f/i-2007-2014/remont/exteriorinterior-trim/#interior-panels-trim-service-information)
4. REMOVE UPPER NO. 2 CONSOLE PANEL GARNISH . Refer to «REMOVAL - Step 6»(/lexus/is-f/i-2007-2014/remont/exteriorinterior-trim/#interior-panels-trim-service-information)
5. REMOVE CONSOLE PANEL SUB-ASSEMBLY . Refer to «REMOVAL - Step 7»(/lexus/is-f/i-2007-2014/remont/exteriorinterior-trim/#interior-panels-trim-service-information)
6. REMOVE FRONT ASH RECEPTACLE ASSEMBLY . Refer to «REMOVAL - Step 8»(/lexus/is-f/i-2007-2014/remont/exteriorinterior-trim/#interior-panels-trim-service-information)
7. REMOVE REAR ASH RECEPTACLE ASSEMBLY . Refer to «REMOVAL - Step 7»(/lexus/is-f/i-2007-2014/remont/exteriorinterior-trim/#interior-panels-trim-service-information)
8. REMOVE CONSOLE BOX REGISTER ASSEMBLY . Refer to «REMOVAL - Step 8»(/lexus/is-f/i-2007-2014/remont/exteriorinterior-trim/#interior-panels-trim-service-information)
9. REMOVE CONSOLE BOX . Refer to «REMOVAL - Step 9»(/lexus/is-f/i-2007-2014/remont/exteriorinterior-trim/#interior-panels-trim-service-information)
10. REMOVE NO. 3 INSTRUMENT PANEL REGISTER ASSEMBLY . Refer to «REMOVAL - Step 12»(/lexus/is-f/i-2007-2014/remont/exteriorinterior-trim/#interior-panels-trim-service-information)
11. REMOVE CENTER LOWER INSTRUMENT CLUSTER FINISH PANEL . Refer to «REMOVAL - Step 13»(/lexus/is-f/i-2007-2014/remont/exteriorinterior-trim/#interior-panels-trim-service-information)
12. REMOVE MULTI-DISPLAY WITH RADIO RECEIVER ASSEMBLY (w/ Navigation System) . Refer to «REMOVAL - Step 14»(/lexus/is-f/i-2007-2014/remont/entertainment-systems/#audio-video-service-information)
13. REMOVE INTEGRATION CONTROL PANEL WITH RADIO RECEIVER ASSEMBLY (w/o Navigation System) . Refer to «REMOVAL - Step 10»(/lexus/is-f/i-2007-2014/remont/entertainment-systems/#audio-video-service-information)
14. REMOVE ENGINE SWITCH Disconnect the switch connector. Detach the 2 claws and remove the switch.

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1. INSPECT ENGINE SWITCH Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Switch Condition Specified Condition 7 (SS1) - 5 (GND) Not pushed 10 kohms or higher 2 (SS2) - 5 (GND) Not pushed 10 kohms or higher 7 (SS1) - 5 (GND) Pushed Below 1 ohms 2 (SS2) - 5 (GND) Pushed Below 1 ohms If the resistance is not as specified, replace the engine switch. Apply battery voltage between the terminals of the switch, and check the illumination condition of the switch. HINT: If the positive (+) lead and the negative (-) lead are incorrectly connected, the engine switch indicator will not illuminate. If the voltage is too low, the indicator will not illuminate. OK Measurement Condition Specified Condition Battery positive (+) --> Terminal 11 (SWIL) Battery negative (-) --> Terminal 4 (COM) or 5 (GND) Illuminates Battery positive (+) --> Terminal 12 (INDS) Battery negative (-) --> Terminal 4 (COM) or 5 (GND) Illuminates Battery positive (+) --> Terminal 13 (INDW) Battery negative (-) --> Terminal 4 (COM) or 5 (GND) Illuminates If the result is not as specified, replace the engine switch.

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1. INSTALL ENGINE SWITCH Attach the 2 claws to install the switch. Connect the switch connector.
2. INSTALL INTEGRATION CONTROL PANEL WITH RADIO RECEIVER ASSEMBLY (w/o Navigation System) . Refer to «INSTALLATION - Step 4»(/lexus/is-f/i-2007-2014/remont/entertainment-systems/#audio-video-service-information)
3. INSTALL MULTI-DISPLAY WITH RADIO RECEIVER ASSEMBLY (w/ Navigation System) . Refer to «INSTALLATION - Step 8»(/lexus/is-f/i-2007-2014/remont/entertainment-systems/#audio-video-service-information)
4. INSTALL CENTER LOWER INSTRUMENT CLUSTER FINISH PANEL . Refer to «INSTALLATION - Step 37»(/lexus/is-f/i-2007-2014/remont/exteriorinterior-trim/#interior-panels-trim-service-information)
5. INSTALL NO. 3 INSTRUMENT PANEL REGISTER ASSEMBLY . Refer to «INSTALLATION - Step 38»(/lexus/is-f/i-2007-2014/remont/exteriorinterior-trim/#interior-panels-trim-service-information)
6. INSTALL CONSOLE BOX . Refer to «INSTALLATION - Step 1»(/lexus/is-f/i-2007-2014/remont/exteriorinterior-trim/#interior-panels-trim-service-information)
7. INSTALL CONSOLE BOX REGISTER ASSEMBLY . Refer to «INSTALLATION - Step 2»(/lexus/is-f/i-2007-2014/remont/exteriorinterior-trim/#interior-panels-trim-service-information)
8. INSTALL REAR ASH RECEPTACLE ASSEMBLY . Refer to «INSTALLATION - Step 3»(/lexus/is-f/i-2007-2014/remont/exteriorinterior-trim/#interior-panels-trim-service-information)
9. INSTALL FRONT ASH RECEPTACLE ASSEMBLY . Refer to «INSTALLATION - Step 42»(/lexus/is-f/i-2007-2014/remont/exteriorinterior-trim/#interior-panels-trim-service-information)
10. INSTALL CONSOLE PANEL SUB-ASSEMBLY . Refer to «INSTALLATION - Step 43»(/lexus/is-f/i-2007-2014/remont/exteriorinterior-trim/#interior-panels-trim-service-information)
11. INSTALL UPPER NO. 2 CONSOLE PANEL GARNISH . Refer to «INSTALLATION - Step 44»(/lexus/is-f/i-2007-2014/remont/exteriorinterior-trim/#interior-panels-trim-service-information)
12. INSTALL UPPER NO. 1 CONSOLE PANEL GARNISH . Refer to «INSTALLATION - Step 45»(/lexus/is-f/i-2007-2014/remont/exteriorinterior-trim/#interior-panels-trim-service-information)
13. INSTALL SHIFT LEVER KNOB SUB-ASSEMBLY
14. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL NOTE: When disconnecting the cable, some systems need to be initialized after the cable is reconnected. Refer to «INITIALIZATION»(/lexus/is-f/i-2007-2014/remont/hoistjack/#introduction__initialization) .

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1. INSPECT STARTER RELAY Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 3 - 5 When battery voltage is not applied to terminals 1 and 2 10 kohms or higher 3 - 5 When battery voltage is applied to terminals 1 and 2 Below 1 ohms If the resistance is not as specified, replace the relay.
2. INSPECT STARTER CUT RELAY Measure the resistance according to the value(s) in the table below. Standard Resistance Terminal Connection Condition Specified Condition 3 - 5 When battery voltage is not applied to terminals 1 and 2 10 kohms or higher 3 - 5 When battery voltage is applied to terminals 1 and 2 Below 1 ohms If the resistance is not as specified, replace the relay.

See also:
• REMOVAL
• REMOVAL - Step 2
• INITIALIZATION
• REMOVAL - Step 4
• REMOVAL - Step 14