Toyota CH-R Service Manual: Short to +B in Outer Mirror Indicator(Master) (C1AB0)

Toyota CH-R Service Manual / Park Assist / Monitoring / Blind Spot Monitor System / Short to +B in Outer Mirror Indicator(Master) (C1AB0)

DESCRIPTION

This DTC is stored when the blind spot monitor sensor LH (Master) detects a short to +B in the outer rear view mirror indicator LH.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area
C1AB0	Short to +B in Outer Mirror Indicator(Master)	Both of the following conditions are met: The blind spot monitor system is on The blind spot monitor sensor is not sending voltage to the indicator but the indicator receives voltage above a specified level for a specified period of time	Outer mirror LH Outer rear view mirror assembly LH Wire harness or connector Blind spot monitor sensor LH (Master)

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

When checking for DTCs, make sure that the blind spot monitor system is turned on.

PROCEDURE

CHECK DTC

(a) Turn the ignition switch off.

(b) Turn the ignition switch to ON.

Body Electrical > Blind Spot Monitor Master > Trouble Codes

OK:

No DTCs are output.

USE SIMULATION METHOD TO CHECK

2.	CHECK HARNESS AND CONNECTOR (OUTER REAR VIEW MIRROR INDICATOR CIRCUIT)

*a	Front view of wire harness connector (to blind spot monitor sensor LH (Master))

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

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

Standard Voltage:

Tester Connection	Switch Condition	Specified Condition
M62-4 (OMIL) - Body ground	Ignition switch ON	Below 1 V

REPLACE BLIND SPOT MONITOR SENSOR LH (MASTER)

3.	CHECK HARNESS AND CONNECTOR (OUTER REAR VIEW MIRROR INDICATOR CIRCUIT)

*a	Front view of wire harness connector (to blind spot monitor sensor LH (Master))

(a) Disconnect the IND1 outer mirror LH connector.

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

Standard Voltage:

Tester Connection	Switch Condition	Specified Condition
M62-4 (OMIL) - Body ground	Ignition switch to ON	Below 1 V

REPLACE OUTER MIRROR LH

4.	CHECK HARNESS AND CONNECTOR (OUTER REAR VIEW MIRROR INDICATOR CIRCUIT)

*a	Front view of wire harness connector (to blind spot monitor sensor LH (Master))

(a) Disconnect the J7 outer rear view mirror assembly LH connector.

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

Standard Voltage:

Tester Connection	Switch Condition	Specified Condition
M62-4 (OMIL) - Body ground	Ignition switch to ON	Below 1 V

REPLACE OUTER REAR VIEW MIRROR ASSEMBLY LH

REPAIR OR REPLACE HARNESS OR CONNECTOR

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