Toyota Tacoma manuals

Toyota Tacoma 2015-2018 Service Manual: Short to +B in Outer Mirror Indicator(Slave) (C1AB1)

Toyota Tacoma 2015-2018 Service Manual / Park Assist / Monitoring / Blind Spot Monitor System / Short to +B in Outer Mirror Indicator(Slave) (C1AB1)

DESCRIPTION

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

DTC Code

DTC Detection Condition

Trouble Area

C1AB1

With the blind spot monitor main switch assembly (warning canceling switch assembly) on, the voltage applied to the indicator is high for a certain amount of time even though the blind spot monitor sensor is not outputting voltage to the indicator.

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

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

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

Standard Voltage:

Tester Connection

Switch Condition

Specified Condition

B13-4 (OMIR) - Body ground

Ignition switch ON

Below 1 V

Text in Illustration

*a

Front view of wire harness connector

(to Blind Spot Monitor Sensor RH)

OK

REPLACE BLIND SPOT MONITOR SENSOR RH

NG

3.

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

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

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

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

Standard Voltage:

Tester Connection

Switch Condition

Specified Condition

B13-4 (OMIR) - Body ground

Ignition switch ON

Below 1 V

Text in Illustration

*a

Front view of wire harness connector

(to Blind Spot Monitor Sensor RH)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

4.

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

Standard Voltage:

Tester Connection

Switch Condition

Specified Condition

B13-4 (OMIR) - Body ground

Ignition switch ON

Below 1 V

Text in Illustration

*a

Front view of wire harness connector

(to Blind Spot Monitor Sensor RH)

OK

REPLACE OUTER REAR VIEW MIRROR RH

NG

REPLACE OUTER REAR VIEW MIRROR ASSEMBLY RH

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