DTC B15C3-71: Speaker Output Short Actuator Stuck [10/2022 - ]: Procedure

CHECK VEHICLE TYPE

Check the vehicle type.

Result

Result	Proceed to
for 12 Speakers	A
for 23 Speakers	B

Result:

See step 14

Result:

See step 2

CHECK HARNESS AND CONNECTOR (SPEAKER CIRCUIT)

*1: for RH Side
*2: for LH Side

Disconnect the L52 stereo component amplifier assembly connector.
Disconnect the H1*1 and/or H19*2 front No. 1 speaker assembly connector.
Disconnect the G69*1 and/or G70*2 front No. 2 speaker assembly connector.
Disconnect the G50 front No. 3 speaker assembly connector.
Disconnect the K11*1 and/or K25*2 rear speaker assembly connector.
Disconnect the K10*1 and/or K24*2 rear No. 2 speaker assembly connector.
Disconnect the L15 rear No. 3 speaker assembly connector.
Disconnect the G165 DCM (telematics transceiver) connector.

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

Standard Resistance

FOR RH SIDE

Tester Connection	Condition	Specified Condition
L52-5 (WFR+) - H1-2 (+)	Always	Below 1 Ω
L52-20 (WFR-) - H1-1 (-)	Always	Below 1 Ω
L52-13 (FR+) - G165-1 (SPI+)	Always	Below 1 Ω
L52-28 (FR-) - G165-2 (SPI-)	Always	Below 1 Ω
G165-3 (SPO+) - G69-2 (+)	Always	Below 1 Ω
G165-4 (SPO-) - G69-1 (-)	Always	Below 1 Ω
L52-9 (TWR+) - K10-3 (+TW)	Always	Below 1 Ω
L52-24 (TWR-) - K10-1 (-TW)	Always	Below 1 Ω
K10-4 (+) - K11-2 (+)	Always	Below 1 Ω
K10-2 (-) - K11-1 (-)	Always	Below 1 Ω
L52-5 (WFR+) - Body ground	Always	10 kΩ or higher
L52-20 (WFR-) - Body ground	Always	10 kΩ or higher
L52-13 (FR+) - Body ground	Always	10 kΩ or higher
L52-28 (FR-) - Body ground	Always	10 kΩ or higher
G165-3 (SPO+) - Body ground	Always	10 kΩ or higher
G165-4 (SPO-) - Body ground	Always	10 kΩ or higher
L52-9 (TWR+) - Body ground	Always	10 kΩ or higher
L52-24 (TWR-) - Body ground	Always	10 kΩ or higher
K10-4 (+) - Body ground	Always	10 kΩ or higher
K10-2 (-) - Body ground	Always	10 kΩ or higher

FOR LH SIDE

Tester Connection	Condition	Specified Condition
L52-4 (WFL+) - H19-2 (+)	Always	Below 1 Ω
L52-19 (WFL-) - H19-1 (-)	Always	Below 1 Ω
L52-12 (FL+) - G70-2 (+)	Always	Below 1 Ω
L52-27 (FL-) - G70-1 (-)	Always	Below 1 Ω
L52-8 (TWL+) - K24-3 (+TW)	Always	Below 1 Ω
L52-23 (TWL-) - K24-1 (-TW)	Always	Below 1 Ω
K24-4 (+) - K25-2 (+)	Always	Below 1 Ω
K24-2 (-) - K25-1 (-)	Always	Below 1 Ω
L52-4 (WFL+) - Body ground	Always	10 kΩ or higher
L52-19 (WFL-) - Body ground	Always	10 kΩ or higher
L52-12 (FL+) - Body ground	Always	10 kΩ or higher
L52-27 (FL-) - Body ground	Always	10 kΩ or higher
L52-8 (TWL+) - Body ground	Always	10 kΩ or higher
L52-23 (TWL-) - Body ground	Always	10 kΩ or higher
K24-4 (+) - Body ground	Always	10 kΩ or higher
K24-2 (-) - Body ground	Always	10 kΩ or higher

FOR CENTER SIDE

Tester Connection	Condition	Specified Condition
L52-7 (CTR+) - G50-2 (+)	Always	Below 1 Ω
L52-22 (CTR-) - G50-1 (-)	Always	Below 1 Ω
L52-6 (WF1+) - L15-2 (WF1+)	Always	Below 1 Ω
L52-21 (WF1-) - L15-1 (WF1-)	Always	Below 1 Ω
L52-7 (CTR+) - Body ground	Always	10 kΩ or higher
L52-22 (CTR-) - Body ground	Always	10 kΩ or higher
L52-6 (WF1+) - Body ground	Always	10 kΩ or higher
L52-21 (WF1-) - Body ground	Always	10 kΩ or higher

Result

Proceed to
OK
NG

Result:

REPAIR OR REPLACE HARNESS OR CONNECTOR

Result:

See step 3

INSPECT FRONT NO. 3 SPEAKER ASSEMBLY
Refer to INSPECTION [10/2017 - ]

Result

Proceed to

OK

NG

Result:

NG

REPLACE FRONT NO. 3 SPEAKER ASSEMBLY. Refer to REMOVAL [10/2017 - ]

Result:

OK

See step 4
INSPECT FRONT NO. 1 SPEAKER ASSEMBLY
Refer to INSPECTION [10/2017 - ]

Result

Proceed to

OK

NG

Result:

NG

REPLACE FRONT NO. 1 SPEAKER ASSEMBLY. Refer to REMOVAL [10/2017 - ]

Result:

OK

See step 5
INSPECT REAR SPEAKER ASSEMBLY
Refer to INSPECTION [10/2017 - ]

Result

Proceed to

OK

NG

Result:

NG

REPLACE REAR SPEAKER ASSEMBLY. Refer to REMOVAL [10/2017 - ]

Result:

OK

See step 6
INSPECT REAR NO. 3 SPEAKER ASSEMBLY
Refer to INSPECTION [10/2017 - ]

Result

Proceed to

OK

NG

Result:

NG

REPLACE REAR NO. 3 SPEAKER ASSEMBLY. Refer to REMOVAL [10/2022 - 10/2023] , or refer to REMOVAL [10/2023 - ]

Result:

OK

See step 7

INSPECT DCM (TELEMATICS TRANSCEIVER) (SPO+, SPO-, SPI+, SPI-)

Remove the DCM (telematics transceiver).

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

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

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:

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

Result:

See step 8

REPLACE FRONT NO. 2 SPEAKER ASSEMBLY

Replace the front No. 2 speaker assembly with a new or known good one.

HINT:

Refer to REMOVAL [10/2017 - ]

Result

Proceed to
NEXT

Result:

See step 9

CLEAR DTC

Clear the DTCs.

Body Electrical > Navigation System > Clear DTCs

Result

Proceed to
NEXT

Result:

See step 10

CHECK FOR DTC

Recheck for DTCs and check that no DTCs are output.

Body Electrical > Navigation System > Trouble Codes

Result

Result	Proceed to
DTCs are not output	A
DTCs are output	B

Result:

END (FRONT NO. 2 SPEAKER ASSEMBLY IS DEFECTIVE)

Result:

See step 11

CHECK REAR NO. 2 SPEAKER ASSEMBLY

Replace the rear No. 2 speaker assembly with a new or known good one.

HINT:

Refer to REMOVAL [10/2017 - ]

Result

Proceed to
NEXT

Result:

See step 12

CLEAR DTC

Clear the DTCs.

Body Electrical > Navigation System > Clear DTCs

Result

Proceed to
NEXT

Result:

See step 13

CHECK FOR DTC

Recheck for DTCs and check that no DTCs are output.

Body Electrical > Navigation System > Trouble Codes

Result

Result	Proceed to
DTCs are not output	A
DTCs are output	B

Result:

END (REAR NO. 2 SPEAKER ASSEMBLY IS DEFECTIVE)

Result:

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

CHECK HARNESS AND CONNECTOR (SPEAKER CIRCUIT)

*1: for RH Side
*2: for LH Side

Disconnect the L52 and L54 stereo component amplifier assembly connectors.
Disconnect the H1*1 and/or H19*2 front No. 1 speaker assembly connector.
Disconnect the G69*1 and/or G70*2 front No. 2 speaker assembly connector.
Disconnect the G50 front No. 3 speaker assembly connector.
Disconnect the N20*1 and/or N21*2 roof speaker assembly (front) connector.
Disconnect the K11*1 and/or K25*2 rear speaker assembly connector.
Disconnect the K9*1 and/or K23*2 rear No. 2 speaker assembly (rear door) connector.
Disconnect the N22*1 and/or N23*2 roof speaker assembly (rear) connector.
Disconnect the L13*1 and/or L14*2 rear No. 2 speaker assembly (rear tray) connector.
Disconnect the L15 rear No. 3 speaker assembly connector.
Disconnect the G165 DCM (telematics transceiver) connector.

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

Standard Resistance

FOR RH SIDE

Tester Connection	Condition	Specified Condition
L52-5 (WFR+) - H1-2 (+)	Always	Below 1 Ω
L52-20 (WFR-) - H1-1 (-)	Always	Below 1 Ω
L52-13 (FR+) - G165-1 (SPI+)	Always	Below 1 Ω
L52-28 (FR-) - G165-2 (SPI-)	Always	Below 1 Ω
G165-3 (SPO+) - G69-2 (+)	Always	Below 1 Ω
G165-4 (SPO-) - G69-1 (-)	Always	Below 1 Ω
L52-9 (TWR+) - K9-2 (+)	Always	Below 1 Ω
L52-24 (TWR-) - K9-1 (-)	Always	Below 1 Ω
L54-2 (ROR+) - N20-2 (+)	Always	Below 1 Ω
L54-6 (ROR-) - N20-1 (-)	Always	Below 1 Ω
L52-15 (RR+) - K11-2 (+)	Always	Below 1 Ω
L52-30 (RR-) - K11-1 (-)	Always	Below 1 Ω
L54-4 (R-R+) - N22-2 (+)	Always	Below 1 Ω
L54-10 (R-R-) - N22-1 (-)	Always	Below 1 Ω
L52-11 (SR+) - L13-2 (+)	Always	Below 1 Ω
L52-26 (SR-) - L13-1 (-)	Always	Below 1 Ω
L52-5 (WFR+) - Body ground	Always	10 kΩ or higher
L52-20 (WFR-) - Body ground	Always	10 kΩ or higher
L52-13 (FR+) - Body ground	Always	10 kΩ or higher
L52-28 (FR-) - Body ground	Always	10 kΩ or higher
G165-3 (SPO+) - Body ground	Always	10 kΩ or higher
G165-4 (SPO-) - Body ground	Always	10 kΩ or higher
L52-9 (TWR+) - Body ground	Always	10 kΩ or higher
L52-24 (TWR-) - Body ground	Always	10 kΩ or higher
L54-2 (ROR+) - Body ground	Always	10 kΩ or higher
L54-6 (ROR-) - Body ground	Always	10 kΩ or higher
L52-15 (RR+) - Body ground	Always	10 kΩ or higher
L52-30 (RR-) - Body ground	Always	10 kΩ or higher
L54-4 (R-R+) - Body ground	Always	10 kΩ or higher
L54-10 (R-R-) - Body ground	Always	10 kΩ or higher
L52-11 (SR+) - Body ground	Always	10 kΩ or higher
L52-26 (SR-) - Body ground	Always	10 kΩ or higher

FOR LH SIDE

Tester Connection	Condition	Specified Condition
L52-4 (WFL+) - H19-2 (+)	Always	Below 1 Ω
L52-19 (WFL-) - H19-1 (-)	Always	Below 1 Ω
L52-12 (FL+) - G70-2 (+)	Always	Below 1 Ω
L52-27 (FL-) - G70-1 (-)	Always	Below 1 Ω
L52-8 (TWL+) - K23-2 (+)	Always	Below 1 Ω
L52-23 (TWL-) - K23-1 (-)	Always	Below 1 Ω
L54-1 (ROL+) - N21-2 (+)	Always	Below 1 Ω
L54-5 (ROL-) - N21-1 (-)	Always	Below 1 Ω
L52-14 (RL+) - K25-2 (+)	Always	Below 1 Ω
L52-29 (RL-) - K25-1 (-)	Always	Below 1 Ω
L54-3 (R-L+) - N23-2 (+)	Always	Below 1 Ω
L54-9 (R-L-) - N23-1 (-)	Always	Below 1 Ω
L52-10 (SL+) - L14-2 (+)	Always	Below 1 Ω
L52-25 (SL-) - L14-1 (-)	Always	Below 1 Ω
L52-4 (WFL+) - Body ground	Always	10 kΩ or higher
L52-19 (WFL-) - Body ground	Always	10 kΩ or higher
L52-12 (FL+) - Body ground	Always	10 kΩ or higher
L52-27 (FL-) - Body ground	Always	10 kΩ or higher
L52-8 (TWL+) - Body ground	Always	10 kΩ or higher
L52-23 (TWL-) - Body ground	Always	10 kΩ or higher
L54-1 (ROL+) - Body ground	Always	10 kΩ or higher
L54-5 (ROL-) - Body ground	Always	10 kΩ or higher
L52-14 (RL+) - Body ground	Always	10 kΩ or higher
L52-29 (RL-) - Body ground	Always	10 kΩ or higher
L54-3 (R-L+) - Body ground	Always	10 kΩ or higher
L54-9 (R-L-) - Body ground	Always	10 kΩ or higher
L52-10 (SL+) - Body ground	Always	10 kΩ or higher
L52-25 (SL-) - Body ground	Always	10 kΩ or higher

FOR CENTER SIDE

Tester Connection	Condition	Specified Condition
L52-7 (CTR+) - G50-2 (+)	Always	Below 1 Ω
L52-22 (CTR-) - G50-1 (-)	Always	Below 1 Ω
L52-6 (WF1+) - L15-2 (WF1+)	Always	Below 1 Ω
L52-21 (WF1-) - L15-1 (WF1-)	Always	Below 1 Ω
L52-7 (CTR+) - Body ground	Always	10 kΩ or higher
L52-22 (CTR-) - Body ground	Always	10 kΩ or higher
L52-6 (WF1+) - Body ground	Always	10 kΩ or higher
L52-21 (WF1-) - Body ground	Always	10 kΩ or higher

Result

Proceed to
OK
NG

Result:

REPAIR OR REPLACE HARNESS OR CONNECTOR

Result:

See step 15

INSPECT FRONT NO. 1 SPEAKER ASSEMBLY
Refer to INSPECTION [10/2017 - ]

Result

Proceed to

OK

NG

Result:

NG

REPLACE FRONT NO. 1 SPEAKER ASSEMBLY. Refer to REMOVAL [10/2017 - ]

Result:

OK

See step 16
INSPECT ROOF SPEAKER ASSEMBLY (FRONT)
Refer to INSPECTION [10/2017 - ]

Result

Proceed to

OK

NG

Result:

NG

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

Result:

OK

See step 17
INSPECT ROOF SPEAKER ASSEMBLY (REAR)
Refer to INSPECTION [10/2017 - ]

Result

Proceed to

OK

NG

Result:

NG

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

Result:

OK

See step 18
INSPECT REAR SPEAKER ASSEMBLY
Refer to INSPECTION [10/2017 - ]

Result

Proceed to

OK

NG

Result:

NG

REPLACE REAR SPEAKER ASSEMBLY. Refer to REMOVAL [10/2017 - ]

Result:

OK

See step 19
INSPECT REAR NO. 3 SPEAKER ASSEMBLY
Refer to INSPECTION [10/2017 - ]

Result

Proceed to

OK

NG

Result:

NG

REPLACE REAR NO. 3 SPEAKER ASSEMBLY. Refer to REMOVAL [10/2022 - 10/2023] , or refer to REMOVAL [10/2023 - ]

Result:

OK

See step 20

INSPECT DCM (TELEMATICS TRANSCEIVER) (SPO+, SPO-, SPI+, SPI-)

Remove the DCM (telematics transceiver).

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

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

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:

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

Result:

See step 21

REPLACE FRONT NO. 2 SPEAKER ASSEMBLY

Replace the front No. 2 speaker assembly with a new or known good one.

HINT:

Refer to REMOVAL [10/2017 - ]

Result

Proceed to
NEXT

Result:

See step 22

CLEAR DTC

Clear the DTCs.

Body Electrical > Navigation System > Clear DTCs

Result

Proceed to
NEXT

Result:

See step 23

CHECK FOR DTC

Recheck for DTCs and check that no DTCs are output.

Body Electrical > Navigation System > Trouble Codes

Result

Result	Proceed to
DTCs are not output	A
DTCs are output	B

Result:

END (FRONT NO. 2 SPEAKER ASSEMBLY IS DEFECTIVE)

Result:

See step 24

REPLACE FRONT NO. 3 SPEAKER ASSEMBLY

Replace the front No. 3 speaker assembly with a new or known good one.

HINT:

Refer to REMOVAL [10/2017 - ]

Result

Proceed to
NEXT

Result:

See step 25

CLEAR DTC

Clear the DTCs.

Body Electrical > Navigation System > Clear DTCs

Result

Proceed to
NEXT

Result:

See step 26

CHECK FOR DTC

Recheck for DTCs and check that no DTCs are output.

Body Electrical > Navigation System > Trouble Codes

Result

Result	Proceed to
DTCs are not output	A
DTCs are output	B

Result:

END (FRONT NO. 3 SPEAKER ASSEMBLY IS DEFECTIVE)

Result:

See step 27

REPLACE REAR NO. 2 SPEAKER ASSEMBLY [REAR DOOR]

Replace the rear No. 2 speaker assembly (rear door) with a new or known good one.

HINT:

Refer to REMOVAL [10/2017 - ]

Result

Proceed to
NEXT

Result:

See step 28

CLEAR DTC

Clear the DTCs.

Body Electrical > Navigation System > Clear DTCs

Result

Proceed to
NEXT

Result:

See step 29

CHECK FOR DTC

Recheck for DTCs and check that no DTCs are output.

Body Electrical > Navigation System > Trouble Codes

Result

Result	Proceed to
DTCs are not output	A
DTCs are output	B

Result:

END (REAR NO. 2 SPEAKER ASSEMBLY [REAR DOOR] IS DEFECTIVE)

Result:

See step 30

REPLACE REAR NO. 2 SPEAKER ASSEMBLY [REAR TRAY]

Replace the rear No. 2 speaker assembly (rear tray) with a new or known good one.

HINT:

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

Result

Proceed to
NEXT

Result:

See step 31

CLEAR DTC

Clear the DTCs.

Body Electrical > Navigation System > Clear DTCs

Result

Proceed to
NEXT

Result:

See step 32

CHECK FOR DTC

Recheck for DTCs and check that no DTCs are output.

Body Electrical > Navigation System > Trouble Codes

Result

Result	Proceed to
DTCs are not output	A
DTCs are output	B

Result:

END (REAR NO. 2 SPEAKER ASSEMBLY [REAR TRAY] IS DEFECTIVE)

Result:

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