PARK ASSIST / MONITORING BLIND SPOT MONITOR SYSTEM C1AB412 Outer Mirror Indicator (Module "B" Side) Circuit Short to Battery

DESCRIPTION

This DTC is stored when the blind spot monitor sensor LH (B) detects a short to +B in the outer rear view mirror indicator LH.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area
C1AB412	Outer Mirror Indicator (Module "B" Side) Circuit Short to Battery	Both of the following conditions are met: · The blind spot monitor system is on · The blind spot monitor sensor is not sending voltage to the indicator but the indicator receives voltage above a specified level for a specified period of time	· Outer mirror LH (outer rear view mirror indicator LH) · Outer rear view mirror assembly LH · Harness or connector · Blind spot monitor sensor LH (B)

WIRING DIAGRAM

3.073,1.458 3.229,1.656 0.156,0.198 10 false 2 3.094,1.896 3.365,2.104 0.271,0.208 10 false 1 2.813,1.625 2.969,1.823 0.156,0.198 10 false + 2.802,2.021 2.958,2.219 0.156,0.198 10 false - 0.76,2.427 0.958,2.615 0.198,0.188 10 false B 0.75,2.594 3.208,2.938 2.458,0.344 10 false Outer Mirror LH (Outer Rear View Mirror Indicator LH) 0.479,3.74 2.958,4.031 2.479,0.292 10 false Outer Rear View Mirror Assembly LH 5.448,1.625 5.917,1.823 0.469,0.198 10 false OMIL 5.188,1.469 5.656,1.667 0.469,0.198 10 false 4 5.313,3.563 5.781,3.76 0.469,0.198 10 false Q1 5.313,3.75 6.521,4.365 1.208,0.615 10 false Blind Spot Monitor Sensor LH (B) 0.458,3.552 1.427,3.771 0.969,0.219 10 false J13 3.427,1.458 3.823,1.625 0.396,0.167 10 false BSL+ 3.646,1.896 3.906,2.083 0.26,0.188 10 false - 3.906,1.448 4.813,1.688 0.906,0.24 10 false 14*1, 13*2 3.917,1.844 4.208,2.01 0.292,0.167 10 false 10 0.167,4.521 2.646,4.813 2.479,0.292 10 false *2: for SFTM Made 0.177,4.219 2.656,4.51 2.479,0.292 10 false *1: for GTMC Made

CAUTION / NOTICE / HINT

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

PROCEDURE

1.CHECK DTC

a.

Clear the DTCs.

Click hereAudio / Visual / Telematics>PARK ASSIST / MONITORING>BLIND SPOT MONITOR SYSTEM>DTC CHECK / CLEAR202409,999999,_56,_083082,_0711992,RM100000002NQDF,

Body Electrical > Blind Spot Monitor "B" > Clear DTCs: 50002 460

b.

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

Click hereAudio / Visual / Telematics>PARK ASSIST / MONITORING>BLIND SPOT MONITOR SYSTEM>DTC CHECK / CLEAR202409,999999,_56,_083082,_0711992,RM100000002NQDF,

Body Electrical > Blind Spot Monitor "B" > Trouble Codes: 50001 460

OK:: No DTCs are output.

Result:

Proceed to
OK
NG

OK

USE SIMULATION METHOD TO CHECK

Click hereGeneral>INTRODUCTION>HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS>HOW TO PROCEED WITH TROUBLESHOOTING201910,999999,_V1,_083040,_0402301,RM100000001JHCA,

NG

2.CHECK HARNESS AND CONNECTOR (OUTER REAR VIEW MIRROR INDICATOR CIRCUIT)

a.

1.5,0.25 1.875,0.542 0.375,0.292 1.875,1.146 2.385,0.51 2.385,0.51 2.583,0.51 true 0.083,0.052 0.396,0.25 0.313,0.198 10 false *a 1.563,0.323 1.875,0.521 0.313,0.198 10 false Q1 2.667,0.427 3.073,0.615 0.406,0.188 10 false OMIL

*a	Front view of wire harness connector (to Blind Spot Monitor Sensor LH [B])

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

b.

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

Standard Voltage:

Tester Connection	Switch Condition	Specified Condition
Q1-4 (OMIL) - Body ground	Ignition switch ON	Below 1 V

Result:

Proceed to
OK
NG

OK

REPLACE BLIND SPOT MONITOR SENSOR LH (B)

Click hereAudio / Visual / Telematics>PARK ASSIST / MONITORING>BLIND SPOT MONITOR SENSOR>REMOVAL202409,999999,_56,_083082,_0417653,RM100000002NTDY,

NG

3.CHECK HARNESS AND CONNECTOR (OUTER REAR VIEW MIRROR INDICATOR CIRCUIT)

a.

1.5,0.25 1.875,0.542 0.375,0.292 1.875,1.146 2.385,0.51 2.385,0.51 2.583,0.51 true 0.083,0.052 0.396,0.25 0.313,0.198 10 false *a 1.563,0.323 1.875,0.521 0.313,0.198 10 false Q1 2.667,0.427 3.073,0.615 0.406,0.188 10 false OMIL

*a	Front view of wire harness connector (to Blind Spot Monitor Sensor LH [B])

Disconnect the B outer mirror LH (outer rear view mirror indicator LH) connector.

b.

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

Standard Voltage:

Tester Connection	Switch Condition	Specified Condition
Q1-4 (OMIL) - Body ground	Ignition switch ON	Below 1 V

Result:

Proceed to
OK
NG

OK

REPLACE OUTER MIRROR LH (OUTER REAR VIEW MIRROR INDICATOR LH)

Click hereVehicle Exterior>MIRROR (EXT)>OUTER REAR VIEW MIRROR GLASS>REMOVAL202004,999999,_59,_083099,_0400990,RM100000001MDXU,

NG

4.CHECK HARNESS AND CONNECTOR (OUTER REAR VIEW MIRROR INDICATOR CIRCUIT)

a.

1.5,0.25 1.875,0.542 0.375,0.292 1.875,1.146 2.385,0.51 2.385,0.51 2.583,0.51 true 0.083,0.052 0.396,0.25 0.313,0.198 10 false *a 1.563,0.323 1.875,0.521 0.313,0.198 10 false Q1 2.667,0.427 3.073,0.615 0.406,0.188 10 false OMIL

*a	Front view of wire harness connector (to Blind Spot Monitor Sensor LH [B])

Disconnect the J13 outer rear view mirror assembly LH connector.

b.

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

Standard Voltage:

Tester Connection	Switch Condition	Specified Condition
Q1-4 (OMIL) - Body ground	Ignition switch ON	Below 1 V

Result:

Proceed to
OK
NG

OK

REPLACE OUTER REAR VIEW MIRROR ASSEMBLY LH

Click hereVehicle Exterior>MIRROR (EXT)>OUTER REAR VIEW MIRROR>REMOVAL202304,999999,_59,_083099,_0400989,RM1000000029SEI,

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR