ON-VEHICLE INSPECTION
PROCEDURE
1. CHECK STEERING EFFORT (TORQUE)
NOTICE:
These service operations may affect the SRS airbags. Be sure to read the precautionary notices concerning the SRS airbag system before servicing.
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(a) Stop the vehicle on a level, paved surface and align the wheels straight ahead.
(b) Remove the horn button assembly.
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(c) Connect the cable to the negative (-) battery terminal.
(d) Using a torque wrench, check that the steering wheel assembly set nut is properly tightened.
Torque:
50 N·m {510 kgf·cm, 37 ft·lbf}
(e) Start the engine so that the power steering is ready to operate.
(f) Turn the steering wheel 90 degrees to the right and check steering effort (torque) with the steering wheel turned. Check in the opposite direction using the same method.
Standard Steering Effort (Reference):
6.9 N*m (70 kgf*cm, 61 in.*lbf) or less
(g) Align the front wheels facing straight ahead.
(h) Turn the engine switch off.
(i) Disconnect the cable from the negative (-) battery terminal.
NOTICE:
When disconnecting the cable, some systems need to be initialized after the cable is reconnected.
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(j) Install the horn button assembly.
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How To Proceed With Troubleshooting
Parts LocationLexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Airbag System: Side Satellite Sensor Bus Lost Communication (RH) (B1642,B1643)
DESCRIPTION The side collision sensor RH circuit (bus 1) consists of the airbag sensor assembly, door side airbag sensor RH and rear airbag sensor RH. The door side airbag sensor RH and rear airbag sensor RH detect impacts to the vehicle and send signals to the airbag sensor assembly to determine if ...
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Can Communication System: Check Bus 4 Line for Short to +B
DESCRIPTION There may be a short circuit between one of the CAN bus lines and +B when there is no resistance between terminal 22 (CA2H) of the network gateway ECU and terminal 16 (BAT) of the DLC3, or terminal 7 (CA2L) of the network gateway ECU and terminal 16 (BAT) of the DLC3. Symptom Troubl ...