Dtc B157D Dab Tuner Antenna Disconnected

Audio Visual Telematics. Land Cruiser. Urj200, 202 Grj200 Vdj200
Audio Video. Land Cruiser. Urj200, 202 Grj200 Vdj200

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK CONNECTION OF DAB RADIO ANTENNA CABLE

CHECK QUARTER WINDOW ASSEMBLY (WINDOW GLASS ANTENNA WIRE)

CHECK ANTENNA CORD SUB-ASSEMBLY

CHECK NO. 2 ANTENNA CORD SUB-ASSEMBLY

CHECK NO. 4 ANTENNA CORD SUB-ASSEMBLY

DTC B157D DAB Tuner Antenna Disconnected


DESCRIPTION

This DTC is stored when a malfunction occurs in the digital audio broadcasting antenna assembly which is connected to the multi-media module receiver assembly.

DTC Code
DTC Detection Condition
Trouble Area
B157D
The No. 2 amplifier antenna assembly is not connected
  1. Antenna cord sub-assembly
  2. No. 2 antenna cord sub-assembly
  3. No. 4 antenna cord sub-assembly
  4. Quarter window glass (Window glass antenna wire)
  5. Multi-media module receiver assembly

WIRING DIAGRAM


Land Cruiser. Urj200, 202 Grj200 Vdj200.Audio Video.Audio And Visual System (For Radio Receiver Type). Dtc B157D Dab Tuner Antenna Disconnected


INSPECTION PROCEDURE

NOTICE:
Check that the antenna cable is properly installed and does not have any sharp bends, pinching or loose connections.
1.CHECK CONNECTION OF DAB RADIO ANTENNA CABLE

  1. Check if the DAB radio antenna cable is securely connected to the multi-media module receiver assembly.

    OK:
    DAB radio antenna cable is securely connected.


NG
SECURELY CONNECT DAB RADIO ANTENNA CABLE
OK


2.CHECK QUARTER WINDOW ASSEMBLY (WINDOW GLASS ANTENNA WIRE)

  1. Inspect the quarter window glass (window glass antenna wire) (Click here).



NG
REPAIR WINDOW GLASS ANTENNA WIRE (Click here)
OK


3.CHECK ANTENNA CORD SUB-ASSEMBLY


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Audio Video.Audio And Visual System (For Radio Receiver Type). Dtc B157D Dab Tuner Antenna Disconnected

  1. Remove the antenna connector from the multi-media module receiver assembly.

  1. Remove the antenna connector from the No. 2 antenna cord sub-assembly.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    DB-1 (DAB) - 4
    		Always
    		Below 1 Ω
    DB-1a - 4a
    		Always
    		Below 1 Ω
    DB-1 (DAB) or 4 - Body ground
    		Always
    		10 kΩ or higher
    DB-1a or 4a - Body ground
    		Always
    		10 kΩ or higher
    Text in Illustration
    *a
    		Front view of wire harness connector
    (to Multi-media Module Receiver Assembly)
    *b
    		Front view of wire harness connector
    (to No. 2 Antenna Cord Sub-assembly)


NG
REPLACE ANTENNA CORD SUB-ASSEMBLY (Click here)
OK


4.CHECK NO. 2 ANTENNA CORD SUB-ASSEMBLY


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Audio Video.Audio And Visual System (For Radio Receiver Type). Dtc B157D Dab Tuner Antenna Disconnected

  1. Remove the antenna connector from the antenna cord sub-assembly.

  1. Remove the antenna connector from the No. 4 antenna cord sub-assembly.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    4 - 3
    		Always
    		Below 1 Ω
    4a - 3a
    		Always
    		Below 1 Ω
    4 or 3 - Body ground
    		Always
    		10 kΩ or higher
    4a or 3a - Body ground
    		Always
    		10 kΩ or higher
    Text in Illustration
    *a
    		Front view of wire harness connector
    (to Antenna Cord Sub-assembly)
    *b
    		Front view of wire harness connector
    (to No. 4 Antenna Cord Sub-assembly)


NG
REPLACE NO. 2 ANTENNA CORD SUB-ASSEMBLY (Click here)
OK


5.CHECK NO. 4 ANTENNA CORD SUB-ASSEMBLY


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Audio Video.Audio And Visual System (For Radio Receiver Type). Dtc B157D Dab Tuner Antenna Disconnected

  1. Remove the antenna connector from the No. 2 antenna cord sub-assembly.

  1. Remove the antenna connector from the quarter window glass.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    3 - 1
    		Always
    		Below 1 Ω
    3a - 1a
    		Always
    		Below 1 Ω
    3 or 1 - Body ground
    		Always
    		10 kΩ or higher
    3a or 1a - Body ground
    		Always
    		10 kΩ or higher
    Text in Illustration
    *a
    		Front view of wire harness connector
    (to No. 2 Antenna Cord Sub-assembly)
    *b
    		Front view of wire harness connector
    (to Quarter Window Glass)


NG
REPLACE NO. 4 ANTENNA CORD SUB-ASSEMBLY (Click here)
OK

REPLACE MULTI-MEDIA MODULE RECEIVER ASSEMBLY (Click here)