Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual: Vehicle Speed Sensor (C1A45)

DESCRIPTION

The blind spot monitor sensor receives vehicle speed signals from the skid control ECU via CAN communication.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

C1A45

Vehicle Speed Sensor

A fail flag is transmitted from the skid control ECU

  • Vehicle stability control system
  • Blind spot monitor sensor LH
  • Blind spot monitor sensor RH

CAUTION / NOTICE / HINT

NOTICE:

When checking for DTCs, make sure that the blind spot monitor system is turned on.

PROCEDURE

1.

CHECK OTHER DTC OUTPUT (VEHICLE STABILITY CONTROL SYSTEM)

(a) Check for vehicle stability control system DTCs.

Click here

OK:

Vehicle stability control system DTCs are not output.

NG

GO TO VEHICLE STABILITY CONTROL SYSTEM

OK

2.

CHECK DTC

(a) Turn the engine switch off.

(b) Turn the engine switch on (IG).

(c) Recheck for DTCs and check if the same DTC is output again.

Body Electrical > Blind Spot Monitor Master > Trouble Codes Body Electrical > Blind Spot Monitor Slave > Trouble Codes

Result

Proceed to

No DTCs are output.

A

DTC C1A45 is output ("Blind Spot Monitor Master").

B

DTC C1A45 is output ("Blind Spot Monitor Slave").

C

A

USE SIMULATION METHOD TO CHECK

B

REPLACE BLIND SPOT MONITOR SENSOR LH

C

REPLACE BLIND SPOT MONITOR SENSOR RH

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