DTC C1AB5: Open in Outer Mirror Indicator (Slave) [04/2018 -]: Procedure

1. Turn the power switch off.
2. Turn the power switch on (IG).
3. Recheck for DTCs and check if the same DTC is output again.

   Body Electrical > Blind Spot Monitor Slave > Trouble Codes 

   OK

   No DTCs are output.

   Result

   Result	Proceed to
   OK	A
   NG (w/o Seat Memory)	B
   NG (w/ Seat Memory)	C

Result: 

A 

USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [04/2018 -] 

Result: 

C 

See step  5

Result: 

B 

See step  2

1. Disconnect the P6 blind spot monitor sensor LH connector.
2. Disconnect the I28 outer rear view mirror assembly LH connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   P6-4 (OMIL) - I28-7 (BSL+)	Always	Below 1 Ω
   I28-6 (-) - Body ground	Always	Below 1 Ω

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  3

1. Disconnect the IND2 outer mirror LH connector.
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   I28-7 (BSL+) - IND2-2 (+)	Always	Below 1 Ω
   I28-6 (-) - IND2-1 (-)	Always	Below 1 Ω

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE OUTER REAR VIEW MIRROR ASSEMBLY LH. Refer to  REMOVAL [04/2018 -] 

Result: 

OK 

See step  4

1. Remove the outer mirror LH.

   Refer to REMOVAL [04/2018 -]

2. Inspect the outer rear view mirror indicator LH on the outer mirror LH.

   Refer to INSPECTION [04/2018 -]

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE BLIND SPOT MONITOR SENSOR LH. Refer to  REMOVAL [04/2018 -] 

Result: 

NG 

REPLACE OUTER MIRROR LH. Refer to  REMOVAL [04/2018 -] 

1. Disconnect the P6 blind spot monitor sensor LH connector.
2. Disconnect the I28*1 or I29*2 outer rear view mirror assembly LH connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   P6-4 (OMIL) - I28-7 (BSL+)*1	Always	Below 1 Ω
   P6-4 (OMIL) - I29-7 (BSL+)*2	Always	Below 1 Ω

   1. *1: w/o Panoramic View Monitor System
   2. *2: w/ Panoramic View Monitor System

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  6

1. Disconnect the I28*1 or I29*2 outer rear view mirror assembly LH connector.
2. Disconnect the I22 and I21 outer mirror control ECU assembly LH connectors.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   I28-6 (-) - I22-12 (RTN)*1	Always	Below 1 Ω
   I29-6 (-) - I22-12 (RTN)*2	Always	Below 1 Ω
   I21-7 (GND) - Body ground	Always	Below 1 Ω

   1. *1: w/o Panoramic View Monitor System
   2. *2: w/ Panoramic View Monitor System

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  7

1. Disconnect the I21 and I22 outer mirror control ECU assembly LH connectors.
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   I21-7 (GND) - I22-12 (RTN)	Always	Below 1 Ω

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY LH. Refer to  REMOVAL [04/2018 -] 

Result: 

OK 

See step  8

1. Disconnect the IND2 outer mirror LH connector.
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   I28-7 (BSL+) - IND2-2 (+)*1	Always	Below 1 Ω
   I28-6 (-) - IND2-1 (-)*1	Always	Below 1 Ω
   I29-7 (BSL+) - IND2-2 (+)*2	Always	Below 1 Ω
   I29-6 (-) - IND2-1 (-)*2	Always	Below 1 Ω

   1. *1: w/o Panoramic View Monitor System
   2. *2: w/ Panoramic View Monitor System

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE OUTER REAR VIEW MIRROR ASSEMBLY LH. Refer to  REMOVAL [04/2018 -] 

Result: 

OK 

See step  9

1. Remove the outer mirror LH.

   Refer to REMOVAL [04/2018 -]

2. Inspect the outer rear view mirror indicator LH on the outer mirror LH.

   Refer to INSPECTION [04/2018 -]

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE BLIND SPOT MONITOR SENSOR LH. Refer to  REMOVAL [04/2018 -] 

Result: 

NG 

REPLACE OUTER MIRROR LH. Refer to  REMOVAL [04/2018 -]