DTC B1562: XM Tuner Disconnected (Burst Mode): Procedure

1. Clear the DTCs, refer to DTC CHECK / CLEAR .
2. Recheck for DTCs and check if the same DTC is output again.

   OK

   No DTCs are output.

NG → See step   2 

OK → See step   5 

1. Disconnect the E27 navigation receiver assembly connector.
2. Disconnect the E28 stereo component tuner assembly connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   E27-2 (TXO+) - E28-3 (TXI+)	Always	Below 1 Ω
   E27-3 (TXI+) - E28-2 (TXO+)	Always	Below 1 Ω
   E27-5 (TXO-) - E28-6 (TXI-)	Always	Below 1 Ω
   E27-6 (TXI-) - E28-5 (TXO-)	Always	Below 1 Ω
   E27-2 (TXO+) - Body ground	Always	10 kΩ or higher
   E27-3 (TXI+) - Body ground	Always	10 kΩ or higher
   E27-5 (TXO-) - Body ground	Always	10 kΩ or higher
   E27-6 (TXI-) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Disconnect the E28 stereo component tuner assembly connector.
   Fig 1: Disconnecting E28 Stereo Component Tuner Assembly Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   E28-2 (TXO+) - E28-3 (TXI+)	Always	Below 1 Ω
   E28-5 (TXO-) - E28-6 (TXI-)	Always	Below 1 Ω

   TEXT IN ILLUSTRATION
   
   

   *a	Component without harness connected (Stereo Component Tuner Assembly)

NG → See step   6 

OK → See step   4