DTC C1AB5-11: Outer Mirror Indicator (Module "A" Side) Circuit Short to Ground [11/2023 - ]: Procedure

1. Choose the model to be inspected.

   Result

   Result	Proceed to
   w/o Seat Position Memory	A
   w/ Seat Position Memory	B

Result: 

B 

See step  6

Result: 

A 

See step  2

1. Turn the ignition switch off.
2. Turn the ignition switch to ON.
3. Recheck for DTCs and check if the same DTC is output again.

   Body Electrical > Blind Spot Monitor "A" > Trouble Codes 

   OK

   No DTCs are output.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [12/2019 - ] 

Result: 

NG 

See step  3

1. Disconnect the M2 blind spot monitor sensor RH (A) connector.
2. Disconnect the J15 outer rear view mirror assembly RH connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   M2-4 (OMIR) - Body ground	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  4

1. Disconnect the A outer mirror RH (outer rear view mirror indicator RH).
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   J15-3 (BSR+) - Body ground	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE OUTER REAR VIEW MIRROR ASSEMBLY RH. Refer to  REMOVAL [11/2023 - ] 

Result: 

OK 

See step  5

Refer to INSPECTION [12/2019 - ]

Result

Result: 

OK 

REPLACE BLIND SPOT MONITOR SENSOR RH (A). Refer to  REMOVAL [11/2023 - ] 

Result: 

NG 

REPLACE OUTER MIRROR RH (OUTER REAR VIEW MIRROR INDICATOR RH). Refer to  REMOVAL [12/2019 - ] 

1. Check for DTCs.

   Body Electrical > Blind Spot Monitor "A" > Trouble Codes 

   Result

   Result	Proceed to
   C1AB5-11 is not output	A
   C1AB5-11 is output	B

Result: 

A 

USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [12/2019 - ] 

Result: 

B 

See step  7

Pre-procedure1

1. Disconnect the M2 blind spot monitor sensor RH (A) connector.
2. Disconnect the J7 outer mirror control ECU assembly RH connector.

   Procedure1

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   M2-4 (OMIR) - Body ground	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

   Post-procedure1

4. None

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  8

Pre-procedure1

1. Disconnect the z16 outer rear view mirror assembly RH connector.
2. Disconnect the A outer mirror RH (outer rear view mirror indicator RH).

   Procedure1

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   z16-8 (BSR+) - Body ground	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

   Post-procedure1

4. None

Result: 

NG 

REPLACE OUTER REAR VIEW MIRROR ASSEMBLY RH. Refer to  REMOVAL [11/2023 - ] 

Result: 

OK 

See step  9

Pre-procedure1

1. Remove the outer mirror control ECU assembly RH.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

   Refer to REMOVAL [12/2019 - ]

   Procedure1

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   J7-13 (BDSR) - J7-7 (GND)	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

   Post-procedure1

3. None

Result: 

NG 

REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY RH. Refer to  REMOVAL [12/2019 - ] 

Result: 

OK 

See step  10

Refer to INSPECTION [12/2019 - ]

Result

Result: 

OK 

REPLACE BLIND SPOT MONITOR SENSOR RH (A). Refer to  REMOVAL [11/2023 - ] 

Result: 

NG 

REPLACE OUTER MIRROR RH (OUTER REAR VIEW MIRROR INDICATOR RH). Refer to  REMOVAL [12/2019 - ]