DTC B1AD7-71: Ceiling Front Left Speaker Cable Actuator Stuck [10/2022 - ]: Procedure

Pre-procedure1

1. Disconnect the L54 stereo component amplifier assembly connector.
2. Disconnect the N21 roof speaker assembly (FR LH) connector.

   Procedure1

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   L54-1 (ROL+) - N21-2	Always	Below 1 Ω
   L54-5 (ROL-) - N21-1	Always	Below 1 Ω

   Result

   Proceed to
   OK
   NG

   Post-procedure1

4. None

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  2

Refer to REMOVAL [10/2022 - 10/2023] , or refer to REMOVAL [10/2023 - ]

Result

Result: 

NG 

REPLACE ROOF SPEAKER ASSEMBLY (FR RH). Refer to  REMOVAL [10/2022 - 10/2023]  , or refer to  REMOVAL [10/2023 - ] 

Result: 

OK 

See step  3

1. Clear the DTCs.

   Body Electrical > Navigation System > Clear DTCs 

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  4

1. In accordance with the display of the GTS, perform a speaker line electricity check.

   Body Electrical > Navigation System > Utility 

   Tester Display
   Speaker Line Electricity Check

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  5

1. Check for DTCs and proceed to the following step.

   Body Electrical > Navigation System > Trouble Codes 

   Result

   Result	Proceed to
   DTCs are not output	A
   DTC B1AD7-71 is output	B

Result: 

A 

END (ROOF SPEAKER ASSEMBLY [FR LH] IS DEFECTIVE) 

Result: 

B 

REPLACE STEREO COMPONENT AMPLIFIER. Refer to  REMOVAL [10/2022 - 10/2023]  , or refer to  REMOVAL [10/2023 - ]