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 > Hybrid Control System: Definition Of Terms
    DEFINITION OF TERMS Term Definition Monitor Description Description of what the hybrid vehicle control ECU monitors and how to detects malfunctions (monitoring purpose and its details). Related DTCs A group of diagnostic trouble codes that are output by the hybrid vehicle control ECU based on the sa ...

    Toyota Avalon (XX50) 2019-2022 Owners Manual

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