DTC B15D3: Stereo Component Amplifier Disconnected [10/2014 - ]: Procedure

1. If DTC B15C3 is output, perform troubleshooting for DTC B15C3 first.

   Result

   Result	Proceed to
   DTC B15C3 is not output.	A
   DTC B15C3 is output.	B

Result: 

B 

GO TO DTC B15C3 

(Refer to DTC B15C3: Speaker Output Short [10/2014 - ] )

Result: 

A 

See step  2

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 AVC-LAN communication.
   • This DTC may be stored when an AVC-LAN communication error occurs due to electrical noise.

Result: 

B 

See step  4

Result: 

A 

See step  3

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

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

Result: 

NEXT 

See step  4

1. Clear the DTCs (Refer to DTC CHECK / CLEAR [10/2014 - ] ).
2. Recheck for DTCs and check that no DTCs are output.

   OK

   No DTCs are output.

Result: 

OK 

END 

Result: 

NG 

See step  5

1. Disconnect the E9 and E10 stereo component amplifier assembly connectors.
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   E9-3 (GND) - Body ground	Always	Below 1 Ω
   E9-18 (GND2) - 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
   E9-1 (+B) - E9-3 (GND)	Power switch off	11 to 14 V
   E9-16 (+B2) - E9-3 (GND)	Power switch off	11 to 14 V
   E10-12 (ACC) - E9-3 (GND)	Power switch on (ACC)	11 to 14 V

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  6

1. Disconnect the I8 navigation ECU sub-assembly connector.
2. Disconnect the E10 stereo component amplifier assembly connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   I8-7 (TX1+) - E10-8 (TX+)	Always	Below 1 Ω
   I8-8 (TX1-) - E10-7 (TX-)	Always	Below 1 Ω
   I8-7 (TX1+) - Body ground	Always	10 kΩ or higher
   I8-8 (TX1-) - Body ground	Always	10 kΩ or higher

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  7

1. Replace the stereo component amplifier assembly with a new or known good one (Refer to REMOVAL [10/2014 - ] ).
2. Clear the DTCs (Refer to DTC CHECK / CLEAR [10/2014 - ] ).
3. Recheck for DTCs and check that no DTCs are output.

   OK

   No DTCs are output.

Result: 

OK 

END 

Result: 

NG 

REPLACE NAVIGATION ECU SUB-ASSEMBLY 

(Refer to REMOVAL [10/2014 - ] )