Lexus ES: Navigation Processor Malfunction (B15AD)
Lexus ES (XZ10) Service Manual / Audio & Visual & Telematics / Navigation / Multi Info Display / Navigation System (for Gasoline Model) / 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:
| 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 CodesOK:
No DTCs are output.
| OK |  | USE SIMULATION METHOD TO CHECK |
| NG | | REPLACE NAVIGATION ECU |
.gif)
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:
Engine Coolant Temperature / Intake Air Temperature Signal Compare Failure (P011B62)
DESCRIPTION The engine has two temperature sensors, an engine coolant temperature sensor and an intake air temperature sensor (for mass air flow meter sub-assembly), to detect temperature while the engine is operating. A thermistor, whose resistance value varies according to the temperature, is buil
Reassembly
REASSEMBLY PROCEDURE 1. INSTALL NO. 2 OIL NOZZLE SUB-ASSEMBLY (a) Using a 5 mm hexagon wrench, install the 4 No. 2 oil nozzle sub-assemblies to the cylinder block sub-assembly with the 4 bolts. Torque: 10 N·m {102 kgf·cm, 7 ft·lbf} 2. INSTALL NO. 1 OIL NOZZLE SUB-ASSEMBLY (a) U
© 2016-2026 Copyright www.lexguide.net
