Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Short to +B in Outer Mirror Indicator(Slave) (C1AB1)

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual / Audio, Visual, Telematics / Park Assist / Monitoring / Blind Spot Monitor System(for Gasoline Model) / Short to +B in Outer Mirror Indicator(Slave) (C1AB1)

DESCRIPTION

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

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

C1AB1

Short to +B in Outer Mirror Indicator(Slave)

 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

WIRING DIAGRAM

w/o Seat Memory w/ Seat Memory

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 engine switch off.

(b) Turn the engine switch on (IG).

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

Body Electrical > Blind Spot Monitor Slave > Trouble Codes

OK:

No DTCs are output.

OK

USE SIMULATION METHOD TO CHECK

NG

2.

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

(a) Disconnect the P6 blind spot monitor sensor LH connector.

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

Standard Voltage:

Tester Connection

Condition

Specified Condition

P6-4 (OMIL) - Body ground

Engine Switch on (IG)

Below 1 V
OK

REPLACE BLIND SPOT MONITOR SENSOR LH

NG

3.

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

(a) Disconnect the IND2 outer mirror LH connector.

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

Standard Voltage:

Tester Connection

Condition

Specified Condition

P6-4 (OMIL) - Body ground

Engine Switch on (IG)

Below 1 V
OK

REPLACE OUTER MIRROR LH

NG

4.

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

(a) Disconnect the I28*1 or I29*2 outer rear view mirror assembly LH connector.

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

Standard Voltage:

Tester Connection

Condition

Specified Condition

P6-4 (OMIL) - Body ground

Engine Switch on (IG)

Below 1 V
  • *1: w/o Panoramic View Monitor System
  • *2: w/ Panoramic View Monitor System
OK

REPLACE OUTER REAR VIEW MIRROR ASSEMBLY LH

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR
    Short to +B in Outer Mirror Indicator(Master) (C1AB0)

    Short to GND in Outer Mirror Indicator(Master) (C1AB2)

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