DTC B1ACA-71: Front Right Speaker Cable Actuator Stuck [10/2022 - ]: 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 RH	A
   No sound is output from the front No. 2 speaker assembly RH	B

Result: 

B 

See step  7

Result: 

A 

See step  2

Pre-procedure1

1. Disconnect the L52 stereo component amplifier assembly connector.
2. Disconnect the H1 front No. 1 speaker assembly RH connector.

   Procedure1

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   L52-5 (WFR+) - H1-2 (+)	Always	Below 1 Ω
   L52-20 (WFR-) - H1-1 (-)	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  3

Refer to INSPECTION [12/2017 - ]

Result

Result: 

NG 

REPLACE FRONT NO. 1 SPEAKER ASSEMBLY RH. Refer to  REMOVAL [12/2017 - ] 

Result: 

OK 

See step  4

1. Clear the DTCs.

   Body Electrical > Navigation System > Clear DTCs 

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  5

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  6

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 B1ACA-71 is output	B

Result: 

A 

END 

Result: 

B 

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

Pre-procedure1

1. Disconnect the L52 stereo component amplifier assembly connector.
2. Disconnect the G69 front No. 2 speaker assembly RH connector.
3. Disconnect the G165 DCM (telematics transceiver) connector.*
   1. *: w/ Manual (SOS) Switch

   Procedure1

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   L52-13 (FR+) - G165-1 (SPI+)*1	Always	Below 1 Ω
   L52-28 (FR-) - G165-2 (SPI-)*1	Always	Below 1 Ω
   G165-3 (SPO+) - G69-2 (+)*1	Always	Below 1 Ω
   G165-4 (SPO-) - G69-1 (-)*1	Always	Below 1 Ω
   L52-13 (FR+) - G69-2 (+)*2	Always	Below 1 Ω
   L52-28 (FR-) - G69-1 (-)*2	Always	Below 1 Ω

   *1: w/ Manual (SOS) Switch

   *2: w/o Manual (SOS) Switch

   Result

   Proceed to
   OK
   NG

   Post-procedure1

5. None

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  8

Refer to INSPECTION [12/2017 - ]

Result

Result: 

NG 

REPLACE FRONT NO. 2 SPEAKER ASSEMBLY RH. Refer to  REMOVAL [12/2017 - ] 

Result: 

OK 

See step  9

1. Choose the model to be inspected.

   Result

   Result	Proceed to
   w/ Telematics System (for LEXUS Connect)	A
   w/o Telematics System (for LEXUS Connect)	B

Result: 

B 

See step  11

Result: 

A 

See step  10

Pre-procedure1

1. Remove the telephone transceiver assembly.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Component without harness connected (DCM [Telematics Transceiver])

   HINT: 

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

   Procedure1

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   3 (SPO+) - 1 (SPI+)	Always	Below 1 Ω
   4 (SPO-) - 2 (SPI-)	Always	Below 1 Ω
   1 (SPI+) - 2 (SPI-)	Always	10 kΩ or higher
   3 (SPO+) - 4 (SPO-)	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

   Post-procedure1

3. None

Result: 

NG 

REPLACE DCM (TELEMATICS TRANSCEIVER). Refer to  REMOVAL [10/2022 - 10/2023]  , or refer to  REMOVAL [10/2023 - ] 

Result: 

OK 

See step  11

1. Clear the DTCs.

   Body Electrical > Navigation System > Clear DTCs 

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  12

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  13

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 B1ACA-71 is output	B

Result: 

A 

END 

Result: 

B 

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