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Servicing - A/t: Removal & Installation Lexus SC II

Automatic Trans 8 illustrations ~623 words

REMOVAL & INSTALLATION

WARNINGVehicles are equipped with Supplemental Inflatable Restraint (SIR) system. When servicing vehicles, use care to avoid accidental air bag deployment. SIR system-related components are located in various locations throughout interior and exterior of vehicles, depending on application. Do not use electrical test equipment on or near these circuits. If necessary, deactivate SIR system before servicing components. See appropriate AIR BAG DEACTIVATION PROCEDURES article in GENERAL INFORMATION.
CAUTIONWhen battery is disconnected, vehicle computer and memory systems may lose memory data. Driveability problems may exist until computer systems have completed a relearn cycle. Before disconnecting battery, see appropriate COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION.

Removal

  1. Remove 4 bolts and front floor brace center.
  2. Remove 2 bolts, left and right rear suspension member braces and frame spacers. (Scheme 73)
  3. Remove oxygen sensor.
  4. Remove exhaust pipe using the following steps: Remove 4 bolts, nuts and 2 gaskets from exhaust manifold. (Scheme 73) Remove exhaust pipe.
  5. Remove 4 bolts and front floor heat insulator No. 1.
  6. Separate shift rod using the following steps: Set gearshift lever to "N" position. Remove nut and disconnect rod.
  7. Remove shift lever using the following steps: Disconnect PNP switch connector. Remove nut and shift lever with shift rod.
  8. Remove PNP switch using the following steps: Pry out lock plate and remove nut. Remove bolt and pull out PNP switch. (Scheme 74)

Installation

  1. Install PNP switch using the following steps: Install PNP switch and temporarily install bolt. Install new lock plate and nut. Temporarily install shift lever with nut. (Scheme 74) Turn lever counterclockwise until it stops, then turn it clockwise 2 notches. (Scheme 75) Remove shift lever. Align groove neutral basic line. Hold switch in position and tighten bolt to specifications. See «TORQUE SPECIFICATIONS»(ref-156545-S19235586962003072200000). Using screwdriver, stake nut with lock plate.
  2. Install nut and shift lever with shift rod and connect PNP switch connector.
  3. Temporarily install shift rod to gearshift lever with nut.
  4. Adjust shift lever position. See «SHIFT LEVER»(ref-156545-S01538713622003072200000) under ADJUSTMENTS.
  5. Install 4 bolts and front floor heat insulator No. 1.
  6. Install exhaust pipe with 4 bolts, nuts and 2 new gaskets to exhaust manifold. (Scheme 73) Tighten to specification. See «TORQUE SPECIFICATIONS»(ref-156545-S19235586962003072200000).
  7. Install oxygen sensor.
  8. Install right and left rear suspension member braces and frame spacers with 2 bolts.
  9. Install front floor brace center with 2 bolts. Tighten to specification.
  10. Inspect shift lever position. See «SHIFT LEVER»(ref-156545-S01538713622003072200000) under ADJUSTMENTS.
  11. Check PNP switch operation. See «PARK/NEUTRAL POSITION SWITCH»(ref-156545-S40777071032003072200000) under ADJUSTMENTS.
  12. Check exhaust gas leak.

Scheme 73

Scheme 73
Scheme 73

Scheme 74

Scheme 74
Scheme 74

Scheme 75

Scheme 75
Scheme 75
  1. Raise and support the vehicle.
  2. Remove drain plug with gasket and drain automatic transmission fluid.
  3. Remove oil pan. See «DRAINING & REFILLING»(ref-156545-S00014166982003072200000) under LUBRICATION.
  4. Remove oil filter. See «DRAINING & REFILLING»(ref-156545-S00014166982003072200000) under LUBRICATION.
  5. Remove solenoid valve wiring with ATF temperature sensor using the following steps: Disconnect ATF temperature sensor. Remove bolt and clamp. (Scheme 76) Disconnect 7 connectors from solenoid valves.
  6. Remove valve body assembly using the following steps: Remove 20 bolts to remove valve body. (Scheme 77) Remove check ball body and spring. (Scheme 78) Remove 4 bolts and solenoid valves No. 1, 2, 3 and 4. Remove bolt, lock plate, and solenoid valve SLN. Remove 2 "O" rings from each solenoid valves No. 2 and 4. Remove bolt, lock plate and solenoid valves SLU and SLT. (Scheme 79)
  1. Install solenoid valves using the following steps: Install solenoid valves SLU and SLT and lock plate with bolt. Coat 2 new "O" rings with automatic transmission fluid. Install 2 "O" rings to solenoid valves No. 2 and 4. Install solenoid valve SLN with bolt. Install solenoid valves No. 1, 2, 3 and 4 with 4 bolts. (Scheme 79) Install check ball body and spring. (Scheme 78) Align the groove of manual valve with pin of lever. (Scheme 80) Install the 20 bolts. (Scheme 77) Tighten bolts to specification. See «TORQUE SPECIFICATIONS»(ref-156545-S19235586962003072200000).
  2. Install solenoid valve wiring with ATF temperature sensor using the following steps: Connect 7 connectors to solenoid valves. Install clamp with bolt. (Scheme 76) Connect ATF temperature sensor.
  3. Install oil filter. See «DRAINING & REFILLING»(ref-156545-S00014166982003072200000) under LUBRICATION.
  4. Install oil pan. See «DRAINING & REFILLING»(ref-156545-S00014166982003072200000) under LUBRICATION.
  5. Install new gasket and drain plug. Tighten drain plug to specification. See «TORQUE SPECIFICATIONS»(ref-156545-S19235586962003072200000).
  6. Lower vehicle.
  7. Fill and inspect automatic transmission fluid. See «DRAINING & REFILLING»(ref-156545-S00014166982003072200000) under LUBRICATION.

Scheme 76

Scheme 76
Scheme 76

Scheme 77

Scheme 77
Scheme 77

Scheme 78

Scheme 78
Scheme 78

Scheme 79

Scheme 79
Scheme 79

Scheme 80

Scheme 80
Scheme 80

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