Dtc B158F Av Signal Stoppage (Low Battery Voltage)


DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK VEHICLE SIGNAL (OPERATION CHECK)

CHECK FOR DTC

CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER ASSEMBLY POWER SOURCE)

DTC B158F AV Signal Stoppage (Low Battery Voltage)


DESCRIPTION

This DTC is stored when a video or audio signal is interrupted due to battery voltage input to the navigation receiver assembly dropping temporarily.

DTC Code
DTC Detection Condition
Trouble Area
B158F
A video or audio signal is interrupted when the battery voltage drops.
  1. Navigation receiver assembly
  2. Harness or connector

WIRING DIAGRAM


Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Navigation Multi Info Display.Navigation System (For Radio And Display Type). Dtc B158F Av Signal Stoppage (Low Battery Voltage)


INSPECTION PROCEDURE

NOTICE:
Inspect the fuses for circuits related to this system before performing the following procedure.
HINT:
When replacing the navigation receiver assembly, it is necessary to perform the vehicle contract setting for Connected Services (w/ Connected Services Function).
1.CHECK VEHICLE SIGNAL (OPERATION CHECK)


    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155

  1. Enter the "Vehicle Signal Check Mode" screen. [Refer to Check Vehicle Signal in Operation Check (LandCruiser RM000003SKF0LEX.html)]

  1. Check that the battery voltage.

    Standard voltage:
    11 to 14 V
    HINT:
    This display is updated once per second. As a result, it is normal for the display to lag behind the actual switch operation.


NG
Go to step 3
OK


2.CHECK FOR DTC

  1. Clear the DTCs (LandCruiser RM0000011BU0W7X.html).

  1. Check for DTCs (LandCruiser RM0000011BU0W7X.html).

    OK:
    No DTCs are output.


NG
REPLACE NAVIGATION RECEIVER ASSEMBLY (LandCruiser RM000003B6H02GX.html)
OK

USE SIMULATION METHOD TO CHECK (LandCruiser RM000003YMJ00XX.html)

3.CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER ASSEMBLY POWER SOURCE)


    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Navigation Multi Info Display.Navigation System (For Radio And Display Type). Dtc B158F Av Signal Stoppage (Low Battery Voltage)

  1. Disconnect the navigation receiver assembly connector.

  1. Measure the voltage according to the value(s) in the table below.

    Standard Voltage:
    Tester Connection
    		Condition
    		Specified Condition
    H54-4 (+B1) - Body ground
    		Always
    		11 to 14 V
    Text in Illustration
    *a
    		Front view of wire harness connector
    (to Navigation Receiver Assembly)


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE NAVIGATION RECEIVER ASSEMBLY (LandCruiser RM000003B6H02GX.html)