Toyota Corolla Cross Owners & Service Manuals

Toyota Corolla Cross: Outer Mirror Indicator (Module "B" Side) Circuit Open (C1AB413)

DESCRIPTION

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

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

C1AB413

Outer Mirror Indicator (Module "B" Side) Circuit Open

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 mirror LH (outer rear view mirror indicator LH)
  • Outer rear view mirror assembly LH
  • Harness or connector
  • Blind spot monitor sensor LH (B)

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) Turn the ignition switch off.

(b) Turn the ignition switch to ON.

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

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

OK:

No DTCs are output.

OK

USE SIMULATION METHOD TO CHECK

NG

2.

CHECK HARNESS AND CONNECTOR (OUTER REAR VIEW MIRROR ASSEMBLY LH - BLIND SPOT MONITOR SENSOR LH (B) AND BODY GROUND)

(a) Disconnect the S12 blind spot monitor sensor LH (B) connector.

(b) Disconnect the L17 outer rear view mirror assembly LH connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

S12-4 (OMIL) - L17-5 (BSL+)

Always

Below 1 Ω

L17-11 (E) - Body ground

Always

Below 1 Ω

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

3.

INSPECT OUTER REAR VIEW MIRROR ASSEMBLY LH

(a) Disconnect the B outer mirror LH (outer rear view mirror indicator LH) connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

L17-5 (BSL+) - B-1 (+)

Always

Below 1 Ω

L17-11 (E) - B-2 (-)

Always

Below 1 Ω

NG

REPLACE OUTER REAR VIEW MIRROR ASSEMBLY LH

OK

4.

INSPECT OUTER MIRROR LH (OUTER REAR VIEW MIRROR INDICATOR LH)

Click here

OK

REPLACE BLIND SPOT MONITOR SENSOR LH (B)

NG

REPLACE OUTER MIRROR LH (OUTER REAR VIEW MIRROR INDICATOR LH)

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