Toyota Camry owners & service manuals

Toyota Camry (XV70): Navigation Processor Malfunction (B15AD)

Toyota Camry Repair Manual XV70 (2018-2024) / Audio, Visual, Telematics / Navigation / Multi Info Display / Navigation System / 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

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

    DESCRIPTION These DTCs are stored when a malfunction occurs in the navigation antenna assembly. DTC No. Detection Item DTC Detection Condition Trouble Area B15C0 GPS Antenna C

     Speed Signal Malfunction (B15C2)

    DESCRIPTION The navigation ECU receives a vehicle speed signal from the combination meter assembly and information from the navigation antenna assembly, and then adjusts the vehicle position on the ma

     Speaker Output Short (B15C3)

    DESCRIPTION This DTC is stored when a malfunction occurs in the speakers. DTC No. Detection Item DTC Detection Condition Trouble Area B15C3 Speaker Output Short A short

    SEE MORE:

     Parts Location

    PARTS LOCATION ILLUSTRATION *1 FRONT NO. 2 SPEAKER ASSEMBLY RH *2 NAVIGATION ANTENNA ASSEMBLY - Telephone Sub *3 RADIO AND DISPLAY RECEIVER ASSEMBLY *4 DCM (TELEMATICS TRANSCEIVER) *5 NAVIGATION ECU (w/ Navigation System) *6 DLC3 ILLUSTRA

     Removal

    REMOVAL CAUTION / NOTICE / HINT The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed and installed, or replaced during central gateway ECU (network gateway ECU) removal/installation are shown below. Necessary Procedures

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