Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Navigation Processor Malfunction (B15AD)

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual / Audio, Visual, Telematics / Navigation / Multi Info Display / Navigation System(for Gasoline Model) / Navigation Processor Malfunction (B15AD)

DESCRIPTION

These DTCs are stored when a malfunction occurs in the navigation ECU.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

B15AD

Navigation Processor Malfunction

When either condition below is met:

  • A short to ground, short to +B or open occurs in the gyro signal circuit
  • Gyro sensor malfunction

Navigation ECU

CAUTION / NOTICE / HINT

NOTICE:

When replacing the navigation ECU, always replace it with a new one. If a navigation ECU which was installed to another vehicle is used, the following may occur:

  • A communication malfunction DTC may be stored.
  • The navigation ECU may not operate normally.

PROCEDURE

1.

CHECK DTC

(a) Clear the DTCs.

Body Electrical > Navigation System > Clear DTCs

(b) Recheck for DTCs and check that no DTCs are output.

Body Electrical > Navigation System > Trouble Codes

OK:

No DTCs are output.

OK

USE SIMULATION METHOD TO CHECK

NG

REPLACE NAVIGATION ECU

    Stereo Component Amplifier Malfunction (B15A3)

    GPS Antenna Connection Malfunction(short) (B15C0,B15C1)

    See More:

    Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Instrument Panel Safety Pad: Disassembly
    DISASSEMBLY PROCEDURE 1. REMOVE INSTRUMENT PANEL PASSENGER AIRBAG ASSEMBLY Click here 2. REMOVE NO. 1 SIDE DEFROSTER NOZZLE DUCT (a) Remove the screw <C>. (b) Disengage the 2 claws to remove the No. 1 side defroster nozzle duct. 3. REMOVE NO. 2 SIDE DEFROSTER NOZZLE DUCT (a) Remove the 2 screw ...

    Toyota Avalon (XX50) 2019-2022 Owners Manual

    Toyota Avalon (XX50) 2019-2022 Service & Repair Manual

    © 2024 Copyright www.tavalon.net
    0.0142