DTC B15D5: Rear Seat Entertainment System Disconnected [12/2017 - 10/2022]: Procedure

1. Check that optional components (including associated wiring) which generate radio waves are not installed.

   Result

   Result	Proceed to
   Optional components (including associated wiring) are installed.	A
   Optional components (including associated wiring) are not installed.	B

   HINT: 

   • Electrical noise from radio waves generated by optional components or the wiring for those components may affect MOST communication.
   • This DTC may be stored when a MOST communication error occurs due to electrical noise.

Result: 

B 

See step  3

Result: 

A 

See step  2

1. Remove optional components (including associated wiring).
   NOTE:

   Do not remove optional components or associated wiring without the permission of the customer.

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  3

1. Clear the DTCs.

   Refer to DTC CHECK / CLEAR [12/2017 - 10/2022]

   Body Electrical > Navigation System > Clear DTCs 

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  4

1. Check for DTCs.

   Refer to DTC CHECK / CLEAR [12/2017 - 10/2022]

   Body Electrical > Navigation System > Trouble Codes 

   OK

   No DTCs are output.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

END (OPTIONAL COMPONENTS IS DEFECTIVE) 

Result: 

NG 

See step  5

1. Disconnect the L138 multi-display controller sub-assembly connector.
2. Measure the resistance according to the value(s) in the table below.
   STANDARD RESISTANCE:
   
   

   Tester Connection	Condition	Specified Condition
   L138-14 (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
   L138-1 (+B) - Body ground	Always	11 to 14 V

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  6

1. Disconnect the L161 multi-display controller sub-assembly connector.
2. Disconnect the G136 radio receiver assembly connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   L161-5 (MO+) - G136-2 (MI+)	Always	Below 1 Ω
   L161-6 (MO-) - G136-3 (MI-)	Always	Below 1 Ω
   L161-7 (SLDO) - G136-4 (SLDI)	Always	Below 1 Ω
   L161-5 (MO+) - Body ground	Always	10 kΩ or higher
   L161-6 (MO-) - Body ground	Always	10 kΩ or higher
   L161-7 (SLDO) - Body ground	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  7

1. Replace the multi-display controller sub-assembly with a new or known good one.

   Refer to REMOVAL [12/2017 - 10/2022]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  8

1. Clear the DTCs.

   Refer to DTC CHECK / CLEAR [12/2017 - 10/2022]

   Body Electrical > Navigation System > Clear DTCs 

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  9

1. Check for DTCs.

   Refer to DTC CHECK / CLEAR [12/2017 - 10/2022]

   Body Electrical > Navigation System > Trouble Codes 

   OK

   No DTCs are output.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

END (MULTI-DISPLAY CONTROLLER SUB-ASSEMBLY IS DEFECTIVE) 

Result: 

NG 

REPLACE RADIO RECEIVER ASSEMBLY. Refer to  REMOVAL [12/2017 - 10/2022]