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 MANUALSLEXUS2006RX 400H AWD V6-3.3L (3MZ-FE) HYBRIDREPAIR AND DIAGNOSISBODY AND FRAMEROOF AND ASSOCIATED COMPONENTSSUNROOF / MOONROOFTESTING AND INSPECTIONPROGRAMMING AND RELEARNINGINITIALIZATION
2006 Lexus RX 400h AWD V6-3.3L (3MZ-FE) Hybrid
Initialization
2006 Lexus RX 400h AWD V6-3.3L (3MZ-FE) HybridSECTION Initialization
INITIALIZATION
1. RESET SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY
NOTE: When disconnecting the cable from the negative (-) battery terminal, or disconnecting the sliding roof drive gear or connector, sliding roof drive gear requires initialization of the pulse sensor. If a reset is not executed, the following functions do not operate: auto operation, jam protection function, key off operation, key-linked open and close, transmitter-linked open and close.
a. Turn the ignition switch on.
b. If the sliding roof is opened, close it fully.
c. Push the open switch of the slide switch or the up switch of the tilt switch on the personal light, making the sliding roof operation as follows: Tilt up Approximately 1 second tilt down slide open slide close
d. Sliding roof stops at the fully closed position.
e. Finish the initialization.
f. Check that the operation works normally with AUTO operation.
NOTE: If the following conditions occur while operating, initialization will fail.
- Engine switch is turned off.
- Pushed switch is released while sliding roof is operating.
- Vehicle speed is 5 km/h (3 mph) or higher.
- Battery of sliding roof ECU is 1 V or higher.
- Communication is cut off.
HINT:
- If the sliding roof cannot fully close or its position has become misaligned, perform the initialization again.
- If the sliding roof TILT UP switch or SLIDE CLOSE switch is pressed and held until the roof glass has either stopped moving or started moving in the opposite direction, and then the switch is held for another 10 seconds or more, perform the initialization again.
- If the AUTO operation function and jam protection function do not operate after the drive gear has been reset, replace the sliding roof drive gear (sliding roof ECU).
1. RESET SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY
NOTE: When disconnecting the cable from the negative (-) battery terminal, or disconnecting the sliding roof drive gear or connector, sliding roof drive gear requires initialization of the pulse sensor. If a reset is not executed, the following functions do not operate: auto operation, jam protection function, key off operation, key-linked open and close, transmitter-linked open and close.
a. Turn the ignition switch on.
b. If the sliding roof is opened, close it fully.
c. Push the open switch of the slide switch or the up switch of the tilt switch on the personal light, making the sliding roof operation as follows: Tilt up Approximately 1 second tilt down slide open slide close
d. Sliding roof stops at the fully closed position.
e. Finish the initialization.
f. Check that the operation works normally with AUTO operation.
NOTE: If the following conditions occur while operating, initialization will fail.
- Engine switch is turned off.
- Pushed switch is released while sliding roof is operating.
- Vehicle speed is 5 km/h (3 mph) or higher.
- Battery of sliding roof ECU is 1 V or higher.
- Communication is cut off.
HINT:
- If the sliding roof cannot fully close or its position has become misaligned, perform the initialization again.
- If the sliding roof TILT UP switch or SLIDE CLOSE switch is pressed and held until the roof glass has either stopped moving or started moving in the opposite direction, and then the switch is held for another 10 seconds or more, perform the initialization again.
- If the AUTO operation function and jam protection function do not operate after the drive gear has been reset, replace the sliding roof drive gear (sliding roof ECU).
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:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.