Toyota Tacoma manuals

Toyota Tacoma 2015-2018 Service Manual: Short to GND in Outer Mirror Indicator(Slave) (C1AB3)

Toyota Tacoma 2015-2018 Service Manual / Park Assist / Monitoring / Blind Spot Monitor System / Short to GND in Outer Mirror Indicator(Slave) (C1AB3)

DESCRIPTION

This DTC is stored when the blind spot monitor sensor RH detects a ground short in the blind spot monitor indicator RH.

DTC Code

DTC Detection Condition

Trouble Area

C1AB3

With the blind spot monitor main switch assembly (warning canceling switch assembly) on, the voltage output from the blind spot monitor sensor to the indicator is low for a certain amount of time.

  • Harness or connector
  • Outer rear view mirror assembly RH
  • Outer rear view mirror RH
  • Blind spot monitor sensor RH

WIRING DIAGRAM

CAUTION / NOTICE / HINT

CAUTION / NOTICE / HINT

NOTICE:

When checking for DTCs, make sure that the blind spot monitor main switch assembly (warning canceling switch assembly) is on.

PROCEDURE

1.

CHECK DTC

(a) Clear the DTCs (See page (b) Recheck for DTCs and check if the same DTC is output again (See page ).

(b) Recheck for DTCs and check if the same DTC is output again (See page OK: ).

OK:

No DTCs are output.

OK

USE SIMULATION METHOD TO CHECK

NG

2.

CHECK HARNESS AND CONNECTOR (OUTER REAR VIEW MIRROR ASSEMBLY RH - BLIND SPOT MONITOR SENSOR RH)

(a) Disconnect the O3 outer rear view mirror assembly RH connector.

(b) Disconnect the B13 blind spot monitor sensor RH connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

O3-1 (BSR+) - Body ground

Always

10 kΩ or higher

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

3.

CHECK HARNESS AND CONNECTOR (BLIND SPOT MONITOR SENSOR RH - OUTER REAR VIEW MIRROR RH)

(a) Reconnect the O3 outer rear view mirror assembly RH connector.

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

(c) Disconnect the B outer rear view mirror RH connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

B13-4 (OMIR) - Body ground

Always

10 kΩ or higher

Text in Illustration

*a

Front view of wire harness connector

(to Blind Spot Monitor Sensor RH)

NG

REPLACE OUTER REAR VIEW MIRROR ASSEMBLY RH

OK

4.

CHECK OUTER REAR VIEW MIRROR RH

(a) Replace the outer rear view mirror RH with a new or normally functioning one (See page (b) Clear the DTCs (See page  ). ).

(b) Clear the DTCs (See page (c) Recheck for DTCs and check if the same DTC is output again (See page ).

(c) Recheck for DTCs and check if the same DTC is output again (See page OK: ).

OK:

No DTCs are output.

OK

END (OUTER REAR VIEW MIRROR RH WAS DEFECTIVE)

NG

REPLACE BLIND SPOT MONITOR SENSOR RH

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