Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: Short to GND in Outer Mirror Indicator(Slave) (C1AB3)

DESCRIPTION

This DTC is stored when the blind spot monitor sensor RH detects a short to ground in the outer rear view mirror indicator RH.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

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

PROCEDURE

(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.

OK:

No DTCs are output.

OK

USE SIMULATION METHOD TO CHECK

NG

(a) Disconnect the W2 blind spot monitor sensor RH connector.

(b) Disconnect the M4 outer mirror control ECU assembly RH connector.

(c) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

(a) Disconnect the z13 outer rear view mirror assembly RH connector.

(b) Disconnect the IND2 outer mirror RH connector.

(c) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

NG

REPLACE OUTER REAR VIEW MIRROR ASSEMBLY RH

OK

(a) Measure the resistance according to the value(s) in the table below. Standard Resistance: Tester Connection Condition Specified Condition M4-13 (BDSR) - M4-7 (GND) Always 10 kΩ or higher

*a Component without harness connected (Outer Mirror Control ECU Assembly RH)

NG

REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY RH

OK

(a) Remove the outer mirror RH.

Click here

(b) Inspect the outer rear view mirror indicator RH on the outer mirror RH.

Click here

OK

REPLACE BLIND SPOT MONITOR SENSOR RH

NG

REPLACE OUTER MIRROR RH