DTC B1ACB-71: Front Left Speaker Cable Actuator Stuck [07/2022 - ]: Procedure

1. Confirm the problem symptoms and proceed to the respective link.

   Result

   Result	Proceed to
   No sound is output from the front No. 1 speaker assembly LH	A
   No sound is output from the front No. 2 speaker assembly LH	B

Result: 

B 

See step  5

Result: 

A 

See step  2

1. Disconnect the F12 stereo component amplifier assembly connector.
2. Disconnect the K1 front No. 1 speaker assembly LH connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   F12-4 (WFL+) - K1-2 (+)	Always	Below 1 Ω
   F12-19 (WFL-) - K1-1 (-)	Always	Below 1 Ω

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  3

Refer to INSPECTION [10/2018 - ]

Result

Result: 

NG 

REPLACE FRONT NO. 1 SPEAKER ASSEMBLY LH. Refer to  REMOVAL [10/2018 - ] 

Result: 

OK 

See step  4

1. Clear the DTCs.

   Body Electrical > Navigation System > Clear DTCs 

2. In accordance with the display of the GTS, perform a speaker circuit energization inspection.

   Refer to UTILITY [07/2022 - ]

   Body Electrical > Navigation System > Utility 

   Tester Display
   Speaker Line Electricity Check

3. 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 B1ACB71 is output	B

Result: 

A 

END (FRONT NO. 1 SPEAKER ASSEMBLY LH IS DEFECTIVE) 

Result: 

B 

REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY. Refer to  REMOVAL [07/2022 - ] 

1. Disconnect the F12 stereo component amplifier assembly connector.
2. Disconnect the G5 front No. 2 speaker assembly LH connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   F12-12(FL+) - G5-2(+)	Always	Below 1 Ω
   F12-27(FL-) - G5-1(-)	Always	Below 1 Ω

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  6

1. Replace the speaker assembly with a new or known good one.

   Refer to REMOVAL [10/2018 - ]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  7

1. Clear the DTCs.

   Body Electrical > Navigation System > Clear DTCs 

2. In accordance with the display of the GTS, perform a speaker circuit energization inspection.

   Refer to UTILITY [07/2022 - ]

   Body Electrical > Navigation System > Utility 

   Tester Display
   Speaker Line Electricity Check

3. 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 B1ACB71 is output	B

Result: 

A 

END (FRONT NO. 2 SPEAKER ASSEMBLY LH IS DEFECTIVE) 

Result: 

B 

REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY. Refer to  REMOVAL [07/2022 - ]