Lexus ES manuals

Lexus ES: Navigation Processor Malfunction (B15AD)

DESCRIPTION

This DTC is 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

READ NEXT:

 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 Connection

 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 is detected in

SEE MORE:

 Crankshaft Position Sensor "A" Signal Stuck in Range (P03352A,P033531)

DESCRIPTION Refer to DTC P033511. Click here DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory Note P03352A Crankshaft Position Sensor "A" Signal Stuck in Range No crankshaft position sensor signal to the ECM while the engine running (1 trip detection lo

 EVAP System

RELATED DTCS DTC No. SAE Monitoring Item Link P00FE00 P00FE EVAP vent line blocked P043E00 P043E Reference orifice clogged (built into canister pump module) P043F00 P043F Reference orifice high-flow (built into canister pump module) P04417E P0441 Pu

© 2016-2023 Copyright www.lexguide.net