Lexus NX: Power Source Circuit

DESCRIPTION

This circuit provides power to operate the blind spot monitor sensor.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

Inspect the fuses for circuits related to this system before performing the following inspection procedure.

PROCEDURE

1.

CHECK HARNESS AND CONNECTOR (BLIND SPOT MONITOR SENSOR LH, BLIND SPOT MONITOR SENSOR RH - BATTERY AND BODY GROUND)

(a) Disconnect the blind spot monitor sensor LH connector.

*a

Front view of wire harness connector

(to Blind Spot Monitor Sensor RH)

*b

Front view of wire harness connector

(to Blind Spot Monitor Sensor LH)

(b) Disconnect the blind spot monitor sensor RH connector.

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

Standard Voltage:

Tester Connection

Switch Condition

Specified Condition

V1-5 (BLB) - Body ground

Power switch on (IG)

11 to 14 V

V1-5 (BLB) - Body ground

Power switch off

Below 1 V

X1-5 (BRB) - Body ground

Power switch on (IG)

11 to 14 V

X1-5 (BRB) - Body ground

Power switch off

Below 1 V

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

V1-10 (BLGD) - Body ground

Always

Below 1 Ω

X1-10 (BRGD) - Body ground

Always

Below 1 Ω

OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

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