DTC B15D5: Rear Seat Entertainment System Disconnected [08/2017 - 08/2019]: Procedure

1. Clear the DTCs (Refer to DTC CHECK / CLEAR [08/2015 - 08/2019] ).
2. Check for DTCs (Refer to DTC CHECK / CLEAR [08/2015 - 08/2019] ).

   OK

   DTC B15D5 is not output.

Result: 

OK 

USE SIMULATION METHOD TO CHECK 

(Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2017 - 08/2018] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2018 - 08/2019] )

Result: 

NG 

See step  2

1. Check that the television display assembly and navigation receiver assembly*1 or radio and display receiver assembly*2 connectors are connected properly.
   1. *1: w/ Navigation System
   2. *2: w/o Navigation System

   OK

   The connectors are connected properly.

Result: 

NG 

CONNECT CONNECTOR CORRECTLY 

Result: 

OK 

See step  3

1. Disconnect the television display 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
   U13-17 (GND) - Body ground	Always	Below 1 Ω

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

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   U13-1 (+B) - Body ground	Always	11 to 14 V
   U13-2 (ACC) - Body ground	Ignition switch ACC	11 to 14 V

   TEXT IN ILLUSTRATION
   
   

   *a	Front view of wire harness connector (to Television Display Assembly)

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  4

1. w/ Navigation System
   1. Disconnect the H142 navigation receiver assembly connector.
2. w/o Navigation System
   1. Disconnect the H143 radio and display receiver assembly connector.
3. Disconnect the U13 television display assembly connector.
4. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   w/ Navigation System 

   Tester Connection	Condition	Specified Condition
   H142-9 (TX+) - U13-3 (TX1+)	Always	Below 1 Ω
   H142-10 (TX-) - U13-4 (TX1-)	Always	Below 1 Ω
   H142-9 (TX+) - Body ground	Always	10 kΩ or higher
   H142-10 (TX-) - Body ground	Always	10 kΩ or higher

   w/o Navigation System 

   Tester Connection	Condition	Specified Condition
   H143-9 (TX+) - U13-3 (TX1+)	Always	Below 1 Ω
   H143-10 (TX-) - U13-4 (TX1-)	Always	Below 1 Ω
   H143-9 (TX+) - Body ground	Always	10 kΩ or higher
   H143-10 (TX-) - Body ground	Always	10 kΩ or higher

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  5

1. Temporarily replace the television display assembly with a new or known good one (Refer to REMOVAL [08/2017 - 08/2019] ).
2. Clear the DTCs (Refer to DTC CHECK / CLEAR [08/2015 - 08/2019] ).
3. Check for DTCs (Refer to DTC CHECK / CLEAR [08/2015 - 08/2019] ).

   OK

   DTC B15D5 is not output.

   RESULT
   
   

   Result	Proceed to
   OK	A
   NG (w/ Navigation System)	B
   NG (w/o Navigation System)	C

Result: 

A 

END (TELEVISION DISPLAY ASSEMBLY WAS DEFECTIVE) 

Result: 

B 

REPLACE NAVIGATION RECEIVER ASSEMBLY 

(Refer to COMPONENTS [08/2015 - 08/2019] )

Result: 

C 

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY 

(Refer to REMOVAL [08/2015 - 08/2019] )