Toyota Tundra Service Manual: Open in Outer Mirror Indicator(Master) (C1AB4)

Toyota Tundra Service Manual / Audio, Visual, Telematics / Park Assist / Monitoring / Blind Spot Monitor System / Open in Outer Mirror Indicator(Master) (C1AB4)

DESCRIPTION

This DTC is stored when the blind spot monitor sensor RH detects an open in the outer rear view mirror indicator RH.

DTC No.

DTC Detection Condition

Trouble Area

C1AB4

 Both of the following conditions are met:
  • The blind spot monitor system is on
  • The current flowing to the indicator is below a specified value when indicator operation voltage is being sent to the indicator
  • Outer rear view mirror sub-assembly RH
  • Outer rear view mirror assembly RH
  • Harness or connector
  • Blind spot monitor sensor RH

WIRING DIAGRAM

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 here

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

Click here

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 AND BODY GROUND)

(a) Disconnect the S6 blind spot monitor sensor RH connector.

(b) Disconnect the M6 outer rear view mirror assembly RH connector.

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

Standard Resistance:

w/ Memory

Tester Connection

Condition

Specified Condition

S6-4 (OMIR) - M6-9 (BSR+)

Always

Below 1 Ω

M6-5 (MLP-) - Body ground

Always

Below 1 Ω
w/o Memory

Tester Connection

Condition

Specified Condition

S6-4 (OMIR) - M6-18 (BSR+)

Always

Below 1 Ω

M6-5 (MLP-) - Body ground

Always

Below 1 Ω
NG

REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

3.

INSPECT OUTER REAR VIEW MIRROR ASSEMBLY RH

(a) Disconnect the M6 outer rear view mirror assembly RH connector.

*A

w/ Memory

*B

w/o Memory

*a

Front view of outer rear view mirror assembly RH

(to Vehicle Harness Connector)

*b

Front view of outer rear view mirror assembly RH

(to Outer Rear View Mirror Sub-assembly RH)

(b) Disconnect the IND1 outer rear view mirror sub-assembly RH connector.

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

Standard Resistance:

w/ Memory

Tester Connection

Condition

Specified Condition

M6-9 (BSR+) - IND1-5 (+)

Always

Below 1 Ω

M6-5 (MLP-) - IND1-7 (-)

Always

Below 1 Ω
w/o Memory

Tester Connection

Condition

Specified Condition

M6-18 (BSR+) - IND1-5 (+)

Always

Below 1 Ω

M6-5 (MLP-) - IND1-7 (-)

Always

Below 1 Ω
NG

REPLACE OUTER REAR VIEW MIRROR ASSEMBLY RH

OK

4.

INSPECT OUTER REAR VIEW MIRROR SUB-ASSEMBLY RH

(a) Remove the outer rear view mirror sub-assembly RH.

Click here

(b) Inspect the outer rear view mirror indicator RH on the outer rear view mirror sub-assembly RH.

Click here

OK

REPLACE BLIND SPOT MONITOR SENSOR RH

NG

REPLACE OUTER REAR VIEW MIRROR SUB-ASSEMBLY RH

    Short to GND in Outer Mirror Indicator(Slave) (C1AB3)

    Open in Outer Mirror Indicator(Slave) (C1AB5)

    See More:

    Toyota Tundra Service Manual > Vehicle Stability Control System: Error in Matching of ECUs (C1288)
    DESCRIPTION The skid control ECU (brake actuator assembly) stores this DTC when the previously learned values in the VSC system and engine information sent from the ECM are inconsistent, or when the learning has not completed after the skid control ECU (brake actuator assembly) is replaced with a ne ...

    Toyota Tundra Owners Manual

    Toyota Tundra Service Manual

    © 2025 Copyright www.ttundra.com
    0.0098