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.
SYS.OK|MANUAL.DBβ LIVE
HOMESERVICE MANUALSLEXUS2006RX 400H AWD V6-3.3L (3MZ-FE) HYBRIDREPAIR AND DIAGNOSISHYBRID DRIVE SYSTEMSPOWER CONTROL SYSTEMDRIVE MOTOR CIRCUIT BREAKER SENSORSERVICE AND REPAIRREAR CIRCUIT BREAKER SENSOR
2006 Lexus RX 400h AWD V6-3.3L (3MZ-FE) Hybrid
Rear Circuit Breaker Sensor
2006 Lexus RX 400h AWD V6-3.3L (3MZ-FE) HybridSECTION Rear Circuit Breaker Sensor
REMOVAL
1. DISCONNECT CABLE FROM BATTERY NEGATIVE TERMINAL
2. REMOVE DECK BOARD SUB-ASSEMBLY
3. REMOVE DECK FLOOR BOX REAR
4. REMOVE REAR FLOOR FINISH PLATE
5. REMOVE DECK FLOOR BOX FRONT
6. REMOVE DECK BOARD SUB-ASSEMBLY NO.2
8. REMOVE DECK SIDE TRIM BOX RH
9. REMOVE DECK SIDE TRIM BOX LH
10. REMOVE REAR CIRCUIT BREAKER SENSOR
a. Remove the rear circuit breaker sensor (LH).

1. Move the outer section to the wire harness side as illustrated, then disconnect the rear circuit breaker sensor (LH).

2. Remove the 2 bolts and rear circuit breaker sensor (LH).
b. Remove the rear circuit breaker sensor (RH).

1. Move the outer section to the wire harness side as illustrated, then disconnect the rear circuit breaker sensor (RH).

2. Remove the 2 bolts and rear circuit breaker sensor (RH).
INSTALLATION
1. INSTALL REAR CIRCUIT BREAKER SENSOR

a. Install the rear circuit breaker sensor (RH).
1. Install the circuit breaker sensor (RH) with the 2 bolts.
Torque: 8.0 N.m (82 kgf.cm, 71 in.lbf)

2. Connect the connector to the rear circuit breaker sensor (RH).
b. Install the rear circuit breaker sensor (LH).

1. Install the rear circuit breaker sensor (LH) with the 2 bolts.
Torque: 8.0 N.m (82 kgf.cm, 71 in.lbf)

2. Connect the connector to the rear circuit breaker sensor (LH).
2. INSTALL DECK SIDE TRIM BOX RH
3. INSTALL DECK SIDE TRIM BOX LH
4. INSTALL DECK BOARD SUB-ASSEMBLY NO.2
5. INSTALL DECK BOARD SUB-ASSEMBLY NO.3
6. INSTALL DECK FLOOR BOX FRONT
7. INSTALL REAR FLOOR FINISH PLATE
8. INSTALL DECK FLOOR BOX REAR
9. INSTALL DECK BOARD SUB-ASSEMBLY
10. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL
11. PERFORM INITIALIZATION
Some system need initialization when reconnecting the battery cable.
1. DISCONNECT CABLE FROM BATTERY NEGATIVE TERMINAL
2. REMOVE DECK BOARD SUB-ASSEMBLY
3. REMOVE DECK FLOOR BOX REAR
4. REMOVE REAR FLOOR FINISH PLATE
5. REMOVE DECK FLOOR BOX FRONT
6. REMOVE DECK BOARD SUB-ASSEMBLY NO.2
8. REMOVE DECK SIDE TRIM BOX RH
9. REMOVE DECK SIDE TRIM BOX LH
10. REMOVE REAR CIRCUIT BREAKER SENSOR
a. Remove the rear circuit breaker sensor (LH).
1. Move the outer section to the wire harness side as illustrated, then disconnect the rear circuit breaker sensor (LH).
2. Remove the 2 bolts and rear circuit breaker sensor (LH).
b. Remove the rear circuit breaker sensor (RH).
1. Move the outer section to the wire harness side as illustrated, then disconnect the rear circuit breaker sensor (RH).
2. Remove the 2 bolts and rear circuit breaker sensor (RH).
INSTALLATION
1. INSTALL REAR CIRCUIT BREAKER SENSOR
a. Install the rear circuit breaker sensor (RH).
1. Install the circuit breaker sensor (RH) with the 2 bolts.
Torque: 8.0 N.m (82 kgf.cm, 71 in.lbf)
2. Connect the connector to the rear circuit breaker sensor (RH).
b. Install the rear circuit breaker sensor (LH).
1. Install the rear circuit breaker sensor (LH) with the 2 bolts.
Torque: 8.0 N.m (82 kgf.cm, 71 in.lbf)
2. Connect the connector to the rear circuit breaker sensor (LH).
2. INSTALL DECK SIDE TRIM BOX RH
3. INSTALL DECK SIDE TRIM BOX LH
4. INSTALL DECK BOARD SUB-ASSEMBLY NO.2
5. INSTALL DECK BOARD SUB-ASSEMBLY NO.3
6. INSTALL DECK FLOOR BOX FRONT
7. INSTALL REAR FLOOR FINISH PLATE
8. INSTALL DECK FLOOR BOX REAR
9. INSTALL DECK BOARD SUB-ASSEMBLY
10. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL
11. PERFORM INITIALIZATION
Some system need initialization when reconnecting the battery cable.
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.