Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSSCION2006XB L4-1.5L (1NZ-FE)REPAIR AND DIAGNOSISTRANSMISSION AND DRIVETRAINAUTOMATIC TRANSMISSION/TRANSAXLETESTING AND INSPECTIONINITIAL INSPECTION
2006 Scion xB L4-1.5L (1NZ-FE)
Initial Inspection
2006 Scion xB L4-1.5L (1NZ-FE)SECTION Initial Inspection
INSPECTION
1. INSPECT INPUT SHAFT END PLAY
a) Using a dial indicator, measure the end play in the axial direction.
Standard end play: 0.374 to 1.292 mm (0.0147 to 0.0509 inch)
If the end play is not as specified, select and replace the thrust needle roller bearing.
2. INSPECT INTERMEDIATE SHAFT ASSEMBLY
a) Using a dial indicator, measure the end play of the intermediate shaft.
Standard end play: 0.204 to 0.966 mm (0.008 to 0.038 inch)
3. INSPECT 2ND COAST AND OVERDRIVE BRAKE DISC
a) Visually check if the sliding surface of the disc, plate and flange are worn or burnt. Replace as necessary.
HINT:
^ If the lining of the disc is peeling off or discolored, or even if a part of the printed number is defaced, replace all discs.
^ Before assembling new discs, soak them in ATF for at least 15 minutes.
4. INSPECT 1-WAY CLUTCH ASSEMBLY
a) Hold the rear planetary sun gear and turn the 1-way clutch. The 1-way clutch should turn freely clockwise and should lock counterclockwise.
5. INSPECT 2ND BRAKE BRAKE DISC
a) Visually check if the sliding surface of the disc, plate and flange are worn or burnt. Replace as necessary.
HINT:
^ If the lining of the disc is peeling off or discolored, or even if a part of the printed mark is defaced, replace all discs.
^ Before assembling new discs, soak them in ATF for at least 15 minutes.
6. INSPECT NO. 2 1-WAY CLUTCH
a) Install the 1-way clutch and thrust washer to the rear planetary sun gear.
b) Hold the rear planetary sun gear and turn the 1-way clutch. The 1-way clutch should turn freely counterclockwise and should lock clockwise.
7. INSPECT 1ST AND REVERSE BRAKE DISC
a) Visually check if the sliding surface of the disc, plate and flange are worn or burnt. Replace as necessary.
HINT:
^ If the lining of the disc is peeling off or discolored, or even if a part of the printed mark is defaced, replace all discs.
^ Before assembling new discs, soak them in ATF for at least 15 minutes.
8. INSPECT 1ST AND REVERSE BRAKE RETURN SPRING SUB-ASSEMBLY
a) Using a vernier caliper, measure the free length of the spring together with the spring seat.
Standard free length: 13.96 mm (0.5496 inch)
9. INSPECT INPUT SHAFT ASSEMBLY
a) Make sure that the input shaft turns smoothly.
1. INSPECT INPUT SHAFT END PLAY
a) Using a dial indicator, measure the end play in the axial direction.
Standard end play: 0.374 to 1.292 mm (0.0147 to 0.0509 inch)
If the end play is not as specified, select and replace the thrust needle roller bearing.
2. INSPECT INTERMEDIATE SHAFT ASSEMBLY
a) Using a dial indicator, measure the end play of the intermediate shaft.
Standard end play: 0.204 to 0.966 mm (0.008 to 0.038 inch)
3. INSPECT 2ND COAST AND OVERDRIVE BRAKE DISC
a) Visually check if the sliding surface of the disc, plate and flange are worn or burnt. Replace as necessary.
HINT:
^ If the lining of the disc is peeling off or discolored, or even if a part of the printed number is defaced, replace all discs.
^ Before assembling new discs, soak them in ATF for at least 15 minutes.
4. INSPECT 1-WAY CLUTCH ASSEMBLY
a) Hold the rear planetary sun gear and turn the 1-way clutch. The 1-way clutch should turn freely clockwise and should lock counterclockwise.
5. INSPECT 2ND BRAKE BRAKE DISC
a) Visually check if the sliding surface of the disc, plate and flange are worn or burnt. Replace as necessary.
HINT:
^ If the lining of the disc is peeling off or discolored, or even if a part of the printed mark is defaced, replace all discs.
^ Before assembling new discs, soak them in ATF for at least 15 minutes.
6. INSPECT NO. 2 1-WAY CLUTCH
a) Install the 1-way clutch and thrust washer to the rear planetary sun gear.
b) Hold the rear planetary sun gear and turn the 1-way clutch. The 1-way clutch should turn freely counterclockwise and should lock clockwise.
7. INSPECT 1ST AND REVERSE BRAKE DISC
a) Visually check if the sliding surface of the disc, plate and flange are worn or burnt. Replace as necessary.
HINT:
^ If the lining of the disc is peeling off or discolored, or even if a part of the printed mark is defaced, replace all discs.
^ Before assembling new discs, soak them in ATF for at least 15 minutes.
8. INSPECT 1ST AND REVERSE BRAKE RETURN SPRING SUB-ASSEMBLY
a) Using a vernier caliper, measure the free length of the spring together with the spring seat.
Standard free length: 13.96 mm (0.5496 inch)
9. INSPECT INPUT SHAFT ASSEMBLY
a) Make sure that the input shaft turns smoothly.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.