Dtc B1573 Short In Telephone Antenna Circuit

Vehicle Interior. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25
Theft Deterrent Keyless Entry. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25

DESCRIPTION

INSPECTION PROCEDURE

CHECK CONNECTION OF CONNECTOR

CLEAR DTC

CHECK FOR DTC

CHECK CONNECTOR CONDITION

CHECK INSTRUMENT PANEL INTEGRATION ANTENNA ASSEMBLY (TELEPHONE ANTENNA)

CLEAR DTC

CHECK FOR DTC

REPLACE INSTRUMENT PANEL INTEGRATION ANTENNA ASSEMBLY

CLEAR DTC

CHECK FOR DTC

DTC B1573 Short in Telephone Antenna Circuit

DTC B15CB Telematics Transceiver Antenna Disconnected


DESCRIPTION

These DTCs are stored when a malfunction occurs in the instrument panel integration antenna assembly (telephone antenna) circuit.

DTC Code
DTC Detection Condition
Trouble Area
B1573
There is a short circuit in the telephone antenna between the telephone transceiver assembly and instrument panel integration antenna assembly, or at the points where it connects to the telephone transceiver assembly and instrument panel integration antenna assembly.
  1. Telephone transceiver assembly
  2. Instrument panel integration antenna assembly (telephone antenna)
B15CB
There is an open circuit in the telephone antenna between the telephone transceiver assembly and instrument panel integration antenna assembly, or at the points where it connects to the telephone transceiver assembly and instrument panel integration antenna assembly.

INSPECTION PROCEDURE

NOTICE:
  1. When replacing the telephone transceiver assembly or instrument panel integration antenna assembly, refer to the Service Bulletin.
  2. When the telephone transceiver assembly is replaced, it is necessary to set the contract mode.
1.CHECK CONNECTION OF CONNECTOR

  1. Turn the ignition switch off.

  1. Check that the connectors are properly connected to the telephone transceiver assembly and instrument panel integration antenna assembly (telephone antenna connector).

    OK:
    Connectors are properly connected.


NG
CONNECT CONNECTOR CORRECTLY
OK


2.CLEAR DTC

  1. Clear the DTCs (HILUX_TGN26 RM0000044SM00EX.html).


NEXT


3.CHECK FOR DTC

  1. Check for DTCs (HILUX_TGN26 RM0000044SM00EX.html).

    OK:
    DTC B1573 or B15CB is not output.


NG
Go to step 4
OK

END

4.CHECK CONNECTOR CONDITION

  1. Disconnect the instrument panel integration antenna assembly (telephone antenna) connector [color: wine red].

  1. Check that the connector pins are not bent.

    OK:
    Connector pins are not bent.


NG
REPAIR OR REPLACE NAVIGATION ANTENNA ASSEMBLY
OK


5.CHECK INSTRUMENT PANEL INTEGRATION ANTENNA ASSEMBLY (TELEPHONE ANTENNA)


    Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.Theft Deterrent Keyless Entry.Engine Immobiliser System. Dtc B1573 Short In Telephone Antenna Circuit

  1. Disconnect the instrument panel integration antenna assembly (telephone antenna) connector [color: wine red].

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    Core wire - Shield
    		Always
    		4 to 11 kΩ
    Text in Illustration
    *1
    		Core wire
    *2
    		Shield


NG
REPLACE INSTRUMENT PANEL INTEGRATION ANTENNA ASSEMBLY (TELEPHONE ANTENNA)
OK


6.CLEAR DTC

  1. Clear the DTCs (HILUX_TGN26 RM0000044SM00EX.html).


NEXT


7.CHECK FOR DTC

  1. Wiggle the instrument panel integration antenna assembly (telephone antenna).

  1. Check for the DTCs (HILUX_TGN26 RM0000044SM00EX.html).

    OK:
    DTC B1573 or B15CB is not output.


NG
Go to step 8
OK

END

8.REPLACE INSTRUMENT PANEL INTEGRATION ANTENNA ASSEMBLY

  1. Temporarily replace the instrument panel integration antenna assembly with a new or normally functioning one (Refer to the Service Bulletin).


NEXT


9.CLEAR DTC

  1. Clear the DTCs (HILUX_TGN26 RM0000044SM00EX.html).


NEXT


10.CHECK FOR DTC

  1. Check for DTCs (HILUX_TGN26 RM0000044SM00EX.html).

    OK:
    DTC B1573 or B15CB is not output.


NG
REPLACE TELEPHONE TRANSCEIVER
OK

END (INSTRUMENT PANEL INTEGRATION ANTENNA IS DEFECTIVE)