DTC B1ACA-71: Front Right 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 RH	A
   No sound is output from the front No. 2 speaker assembly RH (w/ Telematics Transceiver)	B
   No sound is output from the front No. 2 speaker assembly RH (w/o Telematics Transceiver)	C

Result: 

B 

See step  5

Result: 

C 

See step  9

Result: 

A 

See step  2

1. Disconnect the F12 stereo component amplifier assembly connector.
2. Disconnect the J1 front No. 1 speaker assembly RH connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   F12-5 (WFR+) - J1-2 (+)	Always	Below 1 Ω
   F12-20 (WFR-) - J1-1 (-)	Always	Below 1 Ω

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  3

Refer to REMOVAL [10/2018 - ]

Result

Result: 

NG 

REPLACE FRONT NO. 1 SPEAKER ASSEMBLY RH. 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 B1ACA71 is output	B

Result: 

A 

END (FRONT NO. 1 SPEAKER ASSEMBLY RH 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 G7 front No. 2 speaker assembly RH connector.
3. Disconnect the F125 telematics transceiver connector.
4. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   F12-13 (FR+) - F125-1 (SPI+)	Always	Below 1 Ω
   F12-28 (FR-) - F125-2 (SPI-)	Always	Below 1 Ω
   F125-3 (SPO+) - G7-2 (+)	Always	Below 1 Ω
   F125-4 (SPO-) - G7-1 (-)	Always	Below 1 Ω

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  6

1. Remove the telematics transceiver.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Component without harness connected (Telematics Transceiver)

   Refer to REMOVAL [07/2022 - ]

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

Result: 

NG 

REPLACE TELEMATICS TRANSCEIVER. Refer to  REMOVAL [07/2022 - ] 

Result: 

OK 

See step  7

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  8

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 B1ACA71 is output	B

Result: 

A 

END (FRONT NO. 2 SPEAKER ASSEMBLY RH 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 G7 front No. 2 speaker assembly RH connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   F12-13 (FR+) - G7-2 (+)	Always	Below 1 Ω
   F12-28 (FR-) - G7-1 (-)	Always	Below 1 Ω

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  10

Refer to INSPECTION [07/2022 - ]

Result

Result: 

NG 

REPLACE FRONT NO. 2 SPEAKER ASSEMBLY RH. Refer to  REMOVAL [10/2018 - ] 

Result: 

OK 

See step  11

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 B1ACA71 is output	B

Result: 

A 

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

Result: 

B 

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