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 FRAMEDOORS, HOOD AND TRUNKTRUNK / LIFTGATETESTING AND INSPECTIONPROGRAMMING AND RELEARNINGPOWER BACK DOOR SYSTEMINITIALIZATION
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 (INITIALIZE)
a. Resetting the power back door system:
The power back door ECU records the fully open position and the fully closed position of the power back door in its memory and the power back door fully opens and fully closes based on this memory. In the case where any of the batteries, fuses, power back door ECU or power back door drive unit are removed and then reinstalled, the power back door ECU loses the memory of the door positions. In such cases, resetting the system is necessary. However, the back door closer system has no effect on ECU memory.
Reset the power back door system as follows:
1. Fully close the power back door if opened.
2. Check that the back door fully opens and fully closes.
- Unlock the power back door using the unlock button on the transmitter switch or the door control switch.
- Turn the ignition switch to the off.
- Check that the power back door main switch is not pushed.
- Check that the back door fully opens and fully closes by pushing the power back door opener/closer switch or PWR button on the transmitter switch.
HINT: The jam protection function is enabled through the above initialization procedure.
2. BACK DOOR LOCK
a. When the battery is reconnected:
If the back door is locked and therefore cannot be opened, it is necessary to unlock the back door using the door control switch or transmitter switch.
b. When the back door lock is replaced:
The power back door ECU cannot receive a switch signal from the lock. This may cause the power back door system to enter fail-safe mode and DTC B2215 to set, as well as make the system disabled. When the lock is replaced, be sure to perform the following: first, properly connect the lock, second clear the DTC from memory using the intelligent tester, and finally recheck that no DTC is output.
1. RESET (INITIALIZE)
a. Resetting the power back door system:
The power back door ECU records the fully open position and the fully closed position of the power back door in its memory and the power back door fully opens and fully closes based on this memory. In the case where any of the batteries, fuses, power back door ECU or power back door drive unit are removed and then reinstalled, the power back door ECU loses the memory of the door positions. In such cases, resetting the system is necessary. However, the back door closer system has no effect on ECU memory.
Reset the power back door system as follows:
1. Fully close the power back door if opened.
2. Check that the back door fully opens and fully closes.
- Unlock the power back door using the unlock button on the transmitter switch or the door control switch.
- Turn the ignition switch to the off.
- Check that the power back door main switch is not pushed.
- Check that the back door fully opens and fully closes by pushing the power back door opener/closer switch or PWR button on the transmitter switch.
HINT: The jam protection function is enabled through the above initialization procedure.
2. BACK DOOR LOCK
a. When the battery is reconnected:
If the back door is locked and therefore cannot be opened, it is necessary to unlock the back door using the door control switch or transmitter switch.
b. When the back door lock is replaced:
The power back door ECU cannot receive a switch signal from the lock. This may cause the power back door system to enter fail-safe mode and DTC B2215 to set, as well as make the system disabled. When the lock is replaced, be sure to perform the following: first, properly connect the lock, second clear the DTC from memory using the intelligent tester, and finally recheck that no DTC is output.
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.