Last Modified: 04-05-2023 6.11:8.1.0 Doc ID: RM100000000VJ69
Model Year Start: 2016 Model: Sienna Prod Date Range: [12/2015 - 11/2017]
Title: NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: Speaker Circuit; 2016 - 2017 MY Sienna [12/2015 - 11/2017]

Speaker Circuit

DESCRIPTION

for 6 Speakers:

If there is a short in a speaker circuit, the navigation receiver assembly detects it and stops output to the speakers.

Thus sound cannot be heard from the speakers even if there is no malfunction in the navigation receiver assembly or speakers.

for 10 Speakers:

If there is a short in a speaker circuit, the stereo component amplifier assembly detects it and stops output to the speakers.

Thus sound cannot be heard from the speakers even if there is no malfunction in the stereo component amplifier assembly, DCM (telematics transceiver)*1 or speakers.

*1: w/ Safety Connect System

WIRING DIAGRAM

1. for 6 Speakers

2. for 10 Speakers

CAUTION / NOTICE / HINT

NOTICE:

If the DCM (telematics transceiver) has been replaced, perform the DCM Activation procedure using the Techstream (w/ Safety Connect System) (See page 2016 MY Sienna [12/2015 - 08/2016]; INTRODUCTION: REPAIR INSTRUCTION: INITIALIZATION 2017 MY Sienna [08/2016 - 11/2017]; INTRODUCTION: REPAIR INSTRUCTION: INITIALIZATION ).

PROCEDURE

1.

CONFIRM MODEL

(a) Choose the model to be inspected.

Result

Result

Proceed to

for 6 Speakers

A

for 10 Speakers

B

B

GO TO STEP 14

A

2.

CHECK SPEAKER (OPERATION CHECK)

(a) Enter the "System Check Mode" screen.

Refer to Check Speaker in Operation Check (See page 2016 - 2017 MY Sienna [12/2015 - 11/2017]; NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: OPERATION CHECK ).

(b) Perform the operation check above and determine the speaker that is not operating.

Result

Not Operating Speaker

Proceed to

Front No. 1 speaker assembly or front No. 2 speaker assembly (w/ Safety Connect System)

A

Front No. 1 speaker assembly or front No. 2 speaker assembly (w/o Safety Connect System)

B

Rear speaker assembly

C

HINT:

If sound cannot be heard from any speaker, inspect all of them.

B

GO TO STEP 7

C

GO TO STEP 12

A

3.

CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER ASSEMBLY - DCM (TELEMATICS TRANSCEIVER) - FRONT NO. 2 SPEAKER ASSEMBLY RH)

(a) Disconnect the D57 navigation receiver assembly connector.

(b) Disconnect the G8 front No. 2 speaker assembly RH connector.

(c) Disconnect the D73 DCM (telematics transceiver) connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

D57-1 (FR+) - D73-2 (SPI+)

Always

Below 1 Ω

D57-5 (FR-) - D73-3 (SPI-)

Always

Below 1 Ω

D57-1 (FR+) - G8-1

Always

Below 1 Ω

D57-5 (FR-) - G8-2

Always

Below 1 Ω

D57-1 (FR+) - Body ground

Always

10 kΩ or higher

D57-5 (FR-) - Body ground

Always

10 kΩ or higher

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

4.

CHECK HARNESS AND CONNECTOR (DCM (TELEMATICS TRANSCEIVER) - FRONT NO. 1 SPEAKER ASSEMBLY RH)

(a) Disconnect the D73 DCM (telematics transceiver) connector.

(b) Disconnect the D81 front No. 1 speaker assembly RH connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

D73-5 (SPO+) - D81-1 (+)

Always

Below 1 Ω

D73-6 (SPO-) - D81-3 (-)

Always

Below 1 Ω

D73-5 (SPO+) - Body ground

Always

10 kΩ or higher

D73-6 (SPO-) - Body ground

Always

10 kΩ or higher

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

5.

CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER ASSEMBLY - FRONT NO. 1 SPEAKER ASSEMBLY LH)

(a) Disconnect the D57 navigation receiver assembly connector.

(b) Disconnect the D10 front No. 1 speaker assembly LH connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

D57-2 (FL+) - D10-2 (TWL+)

Always

Below 1 Ω

D57-6 (FL-) - D10-4 (TWL-)

Always

Below 1 Ω

D57-2 (FL+) - Body ground

Always

10 kΩ or higher

D57-6 (FL-) - Body ground

Always

10 kΩ or higher

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

6.

CHECK HARNESS AND CONNECTOR (FRONT NO. 1 SPEAKER ASSEMBLY LH - FRONT NO. 2 SPEAKER ASSEMBLY LH)

(a) Disconnect the D10 front No. 1 speaker assembly LH connector.

(b) Disconnect the H6 front No. 2 speaker assembly LH connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

D10-1 (+) - H6-1

Always

Below 1 Ω

D10-3 (-) - H6-2

Always

Below 1 Ω

D10-1 (+) - Body ground

Always

10 kΩ or higher

D10-3 (-) - Body ground

Always

10 kΩ or higher

Result

Not Operating Speaker

Proceed to

NG

A

OK

B

A

REPAIR OR REPLACE HARNESS OR CONNECTOR

B

GO TO STEP 9

7.

CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER ASSEMBLY - FRONT NO. 1 SPEAKER ASSEMBLY)

(a) Disconnect the D57 navigation receiver assembly connectors.

(b) Disconnect the D81 and D10 front No. 1 speaker assembly connectors.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

D57-1 (FR+) - D81-1 (+)

Always

Below 1 Ω

D57-5 (FR-) - D81-3 (-)

Always

Below 1 Ω

D57-2 (FL+) - D10-2 (TWL+)

Always

Below 1 Ω

D57-6 (FL-) - D10-4 (TWL-)

Always

Below 1 Ω

D57-1 (FR+) - Body ground

Always

10 kΩ or higher

D57-5 (FR-) - Body ground

Always

10 kΩ or higher

D57-2 (FL+) - Body ground

Always

10 kΩ or higher

D57-6 (FL-) - Body ground

Always

10 kΩ or higher

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

8.

CHECK HARNESS AND CONNECTOR (FRONT NO. 1 SPEAKER ASSEMBLY - FRONT NO. 2 SPEAKER ASSEMBLY)

(a) Disconnect the D81 and D10 front No. 1 speaker assembly connectors.

(b) Disconnect the H6 and G8 front No. 2 speaker assembly connectors.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

D81-2 (TWR+) - G8-1

Always

Below 1 Ω

D81-4 (TWR-) - G8-2

Always

Below 1 Ω

D10-1 (+) - H6-1

Always

Below 1 Ω

D10-3 (-) - H6-2

Always

Below 1 Ω

D81-2 (TWR+) - Body ground

Always

10 kΩ or higher

D81-4 (TWR-) - Body ground

Always

10 kΩ or higher

D10-1 (+) - Body ground

Always

10 kΩ or higher

D10-3 (-) - Body ground

Always

10 kΩ or higher

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

9.

INSPECT FRONT NO. 1 SPEAKER ASSEMBLY

(a) Remove the front No. 1 speaker assembly (See page 2016 - 2020 MY Sienna [12/2015 -        ]; AUDIO / VIDEO: FRONT DOOR SPEAKER: INSPECTION ).

(b) Inspect the front No. 1 speaker assembly (See page 2016 - 2020 MY Sienna [12/2015 -        ]; AUDIO / VIDEO: FRONT DOOR SPEAKER: INSPECTION ).

NG

REPLACE FRONT NO. 1 SPEAKER ASSEMBLY

OK

10.

REPLACE FRONT NO. 1 SPEAKER ASSEMBLY

(a) Check that the malfunction disappears when a known good speaker is installed (See page 2016 - 2020 MY Sienna [12/2015 -        ]; AUDIO / VIDEO: FRONT DOOR SPEAKER: REMOVAL ).

OK:

Malfunction disappears.

HINT:

  • Connect all the connectors to the front No. 1 speaker assemblies that were disconnected.
  • When there is a possibility that either the right or left front No. 1 speaker assembly is defective, inspect by interchanging the right one with the left one.
  • Perform the above inspection on both the LH and RH side.
OK

END

NG

11.

INSPECT FRONT NO. 2 SPEAKER ASSEMBLY

(a) Remove the front No. 2 speaker assembly (See page 2016 - 2020 MY Sienna [12/2015 -        ]; AUDIO / VIDEO: INSTRUMENT PANEL SPEAKER: INSPECTION ).

(b) Inspect the front No. 2 speaker assembly (See page 2016 - 2020 MY Sienna [12/2015 -        ]; AUDIO / VIDEO: INSTRUMENT PANEL SPEAKER: INSPECTION ).

OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

(See page 2016 MY Sienna [12/2015 - 08/2016]; NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: PROBLEM SYMPTOMS TABLE 2017 MY Sienna [08/2016 - 11/2017]; NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: PROBLEM SYMPTOMS TABLE )

NG

REPLACE FRONT NO. 2 SPEAKER ASSEMBLY

12.

CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER ASSEMBLY - REAR SPEAKER ASSEMBLY)

(a) Disconnect the D62 navigation receiver assembly connector.

(b) Disconnect the L16 and K10 rear speaker assembly connectors.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

D62-1 (RR+) - L16-1

Always

Below 1 Ω

D62-3 (RR-) - L16-2

Always

Below 1 Ω

D62-2 (RL+) - K10-1

Always

Below 1 Ω

D62-6 (RL-) - K10-2

Always

Below 1 Ω

D62-1 (RR+) - Body ground

Always

10 kΩ or higher

D62-3 (RR-) - Body ground

Always

10 kΩ or higher

D62-2 (RL+) - Body ground

Always

10 kΩ or higher

D62-6 (RL-) - Body ground

Always

10 kΩ or higher

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

13.

INSPECT REAR SPEAKER ASSEMBLY

(a) Remove the rear speaker assembly (See page 2016 - 2020 MY Sienna [12/2015 -        ]; AUDIO / VIDEO: QUARTER TRIM SPEAKER: INSPECTION ).

(b) Inspect the rear speaker assembly (See page 2016 - 2020 MY Sienna [12/2015 -        ]; AUDIO / VIDEO: QUARTER TRIM SPEAKER: INSPECTION ).

OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

(See page 2016 MY Sienna [12/2015 - 08/2016]; NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: PROBLEM SYMPTOMS TABLE 2017 MY Sienna [08/2016 - 11/2017]; NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: PROBLEM SYMPTOMS TABLE )

NG

REPLACE REAR SPEAKER ASSEMBLY

14.

CHECK SPEAKER (OPERATION CHECK)

(a) Enter the "System Check Mode" screen.

Refer to Check Speaker in Operation Check (See page 2016 - 2017 MY Sienna [12/2015 - 11/2017]; NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: OPERATION CHECK ).

(b) Perform the operation check above and determine the speaker that is not operating.

Result

Not Operating Speaker

Proceed to

Front No. 1 speaker assembly

(w/ Safety Connect System)

A

Front No. 1 speaker assembly

(w/o Safety Connect System)

B

Front No. 3 speaker assembly

C

Front No. 2 speaker assembly

D

Rear No. 2 speaker assembly, quarter side speaker assembly or rear No. 3 speaker assembly

E

HINT:

If sound cannot be heard from any speaker, inspect all of them.

B

GO TO STEP 20

C

GO TO STEP 22

D

GO TO STEP 24

E

GO TO STEP 26

A

15.

CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - DCM (TELEMATICS TRANSCEIVER))

(a) Disconnect the L4 stereo component amplifier assembly connector.

(b) Disconnect the D73 DCM (telematics transceiver) connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

L4-10 (FR+) - D73-2 (SPI+)

Always

Below 1 Ω

L4-9 (FR-) - D73-3 (SPI-)

Always

Below 1 Ω

L4-10 (FR+) - Body ground

Always

10 kΩ or higher

L4-9 (FR-) - Body ground

Always

10 kΩ or higher

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

16.

CHECK HARNESS AND CONNECTOR (DCM (TELEMATICS TRANSCEIVER) - FRONT NO. 1 SPEAKER ASSEMBLY RH)

(a) Disconnect the D73 DCM (telematics transceiver) connector.

(b) Disconnect the D80 front No. 1 speaker assembly RH connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

D73-5 (SPO+) - D80-1

Always

Below 1 Ω

D73-6 (SPO-) - D80-2

Always

Below 1 Ω

D73-5 (SPO+) - Body ground

Always

10 kΩ or higher

D73-6 (SPO-) - Body ground

Always

10 kΩ or higher

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

17.

CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - FRONT NO. 1 SPEAKER ASSEMBLY LH)

(a) Disconnect the L4 stereo component amplifier assembly connectors.

(b) Disconnect the D11 front No. 1 speaker assembly connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

L4-3 (FL+) - D11-1

Always

Below 1 Ω

L4-8 (FL-) - D11-2

Always

Below 1 Ω

L4-3 (FL+) - Body ground

Always

10 kΩ or higher

L4-8 (FL-) - Body ground

Always

10 kΩ or higher

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

18.

INSPECT DCM (TELEMATICS TRANSCEIVER)

(a) Remove the DCM (telematics transceiver) (See page 2016 - 2017 MY Sienna [12/2015 - 11/2017]; CELLULAR COMMUNICATION: MAYDAY ECU: REMOVAL ).

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

2 (SPI+) - 5 (SPO+)

Always

Below 1 Ω

3 (SPI-) - 6 (SPO-)

Always

Below 1 Ω

2 (SPI+) - 3 (SPI-)

Always

10 kΩ or higher

5 (SPO+) - 6 (SPO-)

Always

10 kΩ or higher

2 (SPI+) - Body ground

Always

10 kΩ or higher

3 (SPI-) - Body ground

Always

10 kΩ or higher

Text in Illustration

*a

Component without harness connected

(DCM (Telematics Transceiver))

NG

REPLACE DCM (TELEMATICS TRANSCEIVER)

OK

19.

INSPECT FRONT NO. 1 SPEAKER ASSEMBLY

(a) Remove the front No. 1 speaker assembly (See page 2016 - 2020 MY Sienna [12/2015 -        ]; AUDIO / VIDEO: FRONT DOOR SPEAKER: INSPECTION ).

(b) Inspect the front No. 1 speaker assembly (See page 2016 - 2020 MY Sienna [12/2015 -        ]; AUDIO / VIDEO: FRONT DOOR SPEAKER: INSPECTION ).

OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

(See page 2016 MY Sienna [12/2015 - 08/2016]; NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: PROBLEM SYMPTOMS TABLE 2017 MY Sienna [08/2016 - 11/2017]; NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: PROBLEM SYMPTOMS TABLE )

NG

REPLACE FRONT NO. 1 SPEAKER ASSEMBLY

20.

CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - FRONT NO. 1 SPEAKER ASSEMBLY)

(a) Disconnect the L4 stereo component amplifier assembly connector.

(b) Disconnect the D80 and D11 front No. 1 speaker assembly connectors.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

L4-10 (FR+) - D80-1

Always

Below 1 Ω

L4-9 (FR-) - D80-2

Always

Below 1 Ω

L4-3 (FL+) - D11-1

Always

Below 1 Ω

L4-8 (FL-) - D11-2

Always

Below 1 Ω

L4-10 (FR+) - Body ground

Always

10 kΩ or higher

L4-9 (FR-) - Body ground

Always

10 kΩ or higher

L4-3 (FL+) - Body ground

Always

10 kΩ or higher

L4-8 (FL-) - Body ground

Always

10 kΩ or higher

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

21.

INSPECT FRONT NO. 1 SPEAKER ASSEMBLY

(a) Remove the front No. 1 speaker assembly (See page 2016 - 2020 MY Sienna [12/2015 -        ]; AUDIO / VIDEO: FRONT DOOR SPEAKER: INSPECTION ).

(b) Inspect the front No. 1 speaker assembly (See page 2016 - 2020 MY Sienna [12/2015 -        ]; AUDIO / VIDEO: FRONT DOOR SPEAKER: INSPECTION ).

OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

(See page 2016 MY Sienna [12/2015 - 08/2016]; NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: PROBLEM SYMPTOMS TABLE 2017 MY Sienna [08/2016 - 11/2017]; NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: PROBLEM SYMPTOMS TABLE )

NG

REPLACE FRONT NO. 1 SPEAKER ASSEMBLY

22.

CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - FRONT NO. 3 SPEAKER ASSEMBLY)

(a) Disconnect the L3 stereo component amplifier assembly connector.

(b) Disconnect the D48 front No. 3 speaker assembly connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

L3-3 (CTR+) - D48-3

Always

Below 1 Ω

L3-9 (CTR-) - D48-4

Always

Below 1 Ω

L3-3 (CTR+) - Body ground

Always

10 kΩ or higher

L3-9 (CTR-) - Body ground

Always

10 kΩ or higher

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

23.

INSPECT FRONT NO. 3 SPEAKER ASSEMBLY

(a) Remove the front No. 3 speaker assembly (See page 2016 - 2020 MY Sienna [12/2015 -        ]; AUDIO / VIDEO: INSTRUMENT PANEL SPEAKER: INSPECTION ).

(b) Inspect the front No. 3 speaker assembly (See page 2016 - 2020 MY Sienna [12/2015 -        ]; AUDIO / VIDEO: INSTRUMENT PANEL SPEAKER: INSPECTION ).

OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

(See page 2016 MY Sienna [12/2015 - 08/2016]; NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: PROBLEM SYMPTOMS TABLE 2017 MY Sienna [08/2016 - 11/2017]; NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: PROBLEM SYMPTOMS TABLE )

NG

REPLACE FRONT NO. 3 SPEAKER ASSEMBLY

24.

CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - FRONT NO. 2 SPEAKER ASSEMBLY)

(a) Disconnect the L3 stereo component amplifier assembly connector.

(b) Disconnect the G8 and H6 front No. 2 speaker assembly connectors.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

L3-2 (WFR+) - G8-1

Always

Below 1 Ω

L3-6 (WFR-) - G8-2

Always

Below 1 Ω

L3-1 (WFL+) - H6-1

Always

Below 1 Ω

L3-5 (WFL-) - H6-2

Always

Below 1 Ω

L3-2 (WFR+) - Body ground

Always

10 kΩ or higher

L3-6 (WFR-) - Body ground

Always

10 kΩ or higher

L3-1 (WFL+) - Body ground

Always

10 kΩ or higher

L3-5 (WFL-) - Body ground

Always

10 kΩ or higher

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

25.

INSPECT FRONT NO. 2 SPEAKER ASSEMBLY

(a) Remove the front No. 2 speaker assembly (See page 2016 - 2020 MY Sienna [12/2015 -        ]; AUDIO / VIDEO: INSTRUMENT PANEL SPEAKER: INSPECTION ).

(b) Inspect the front No. 2 speaker assembly (See page 2016 - 2020 MY Sienna [12/2015 -        ]; AUDIO / VIDEO: REAR DOOR SPEAKER: INSPECTION ).

OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

(See page 2016 MY Sienna [12/2015 - 08/2016]; NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: PROBLEM SYMPTOMS TABLE 2017 MY Sienna [08/2016 - 11/2017]; NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: PROBLEM SYMPTOMS TABLE )

NG

REPLACE FRONT NO. 2 SPEAKER ASSEMBLY

26.

CHECK SPEAKER (OPERATION CHECK)

(a) Enter the "System Check Mode" screen.

Refer to Check Speaker in Operation Check (See page 2016 - 2017 MY Sienna [12/2015 - 11/2017]; NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: OPERATION CHECK ).

(b) Perform the operation check above and determine the speaker that is not operating.

Result

Not Operating Speaker

Proceed to

Quarter side speaker assembly

A

Rear No. 2 speaker assembly

B

Rear No. 3 speaker assembly

C

HINT:

If sound cannot be heard from any speaker, inspect all of them.

B

GO TO STEP 29

C

GO TO STEP 31

A

27.

CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - QUARTER SIDE SPEAKER ASSEMBLY)

(a) Disconnect the L4 stereo component amplifier assembly connector.

(b) Disconnect the S2 and O2 quarter side speaker assembly connectors.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

L4-2 (SR+) - S2-1

Always

Below 1 Ω

L4-7 (SR-) - S2-2

Always

Below 1 Ω

L4-1 (SL+) - O2-1

Always

Below 1 Ω

L4-6 (SL-) - O2-2

Always

Below 1 Ω

L4-2 (SR+) - Body ground

Always

10 kΩ or higher

L4-7 (SR-) - Body ground

Always

10 kΩ or higher

L4-1 (SL+) - Body ground

Always

10 kΩ or higher

L4-6 (SL-) - Body ground

Always

10 kΩ or higher

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

28.

INSPECT QUARTER SIDE SPEAKER ASSEMBLY

(a) Remove the quarter side speaker assembly (See page 2016 - 2020 MY Sienna [12/2015 -        ]; AUDIO / VIDEO: QUARTER TRIM SPEAKER: INSPECTION ).

(b) Inspect the quarter side speaker assembly (See page 2016 - 2020 MY Sienna [12/2015 -        ]; AUDIO / VIDEO: QUARTER TRIM SPEAKER: INSPECTION ).

OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

(See page 2016 MY Sienna [12/2015 - 08/2016]; NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: PROBLEM SYMPTOMS TABLE 2017 MY Sienna [08/2016 - 11/2017]; NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: PROBLEM SYMPTOMS TABLE )

NG

REPLACE QUARTER SIDE SPEAKER ASSEMBLY

29.

CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - REAR NO. 2 SPEAKER ASSEMBLY)

(a) Disconnect the L4 stereo component amplifier assembly connector.

(b) Disconnect the I2 and J2 rear No. 2 speaker assembly connectors.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

L4-5 (RR+) - I2-1

Always

Below 1 Ω

L4-12 (RR-) - I2-2

Always

Below 1 Ω

L4-4 (RL+) - J2-1

Always

Below 1 Ω

L4-11 (RL-) - J2-2

Always

Below 1 Ω

L4-5 (RR+) - Body ground

Always

10 kΩ or higher

L4-12 (RR-) - Body ground

Always

10 kΩ or higher

L4-4 (RL+) - Body ground

Always

10 kΩ or higher

L4-11 (RL-) - Body ground

Always

10 kΩ or higher

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

30.

INSPECT REAR NO. 2 SPEAKER ASSEMBLY

(a) Remove the rear No. 2 speaker assembly (See page 2016 - 2020 MY Sienna [12/2015 -        ]; AUDIO / VIDEO: REAR DOOR SPEAKER: INSPECTION ).

(b) Inspect the rear No. 2 speaker assembly (See page 2016 - 2020 MY Sienna [12/2015 -        ]; AUDIO / VIDEO: REAR DOOR SPEAKER: INSPECTION ).

OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

(See page 2016 MY Sienna [12/2015 - 08/2016]; NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: PROBLEM SYMPTOMS TABLE 2017 MY Sienna [08/2016 - 11/2017]; NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: PROBLEM SYMPTOMS TABLE )

NG

REPLACE REAR NO. 2 SPEAKER ASSEMBLY

31.

CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - REAR NO. 3 SPEAKER ASSEMBLY)

(a) Disconnect the L3 stereo component amplifier assembly connector.

(b) Disconnect the W16 rear No. 3 speaker assembly connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

L3-8 (WF1+) - W16-2 (+)

Always

Below 1 Ω

L3-7 (WF1-) - W16-1 (-)

Always

Below 1 Ω

L3-4 (WF2+) - W16-4 (+)

Always

Below 1 Ω

L3-10 (WF2-) - W16-3 (-)

Always

Below 1 Ω

L3-8 (WF1+) - Body ground

Always

10 kΩ or higher

L3-7 (WF1-) - Body ground

Always

10 kΩ or higher

L3-4 (WF2+) - Body ground

Always

10 kΩ or higher

L3-10 (WF2-) - Body ground

Always

10 kΩ or higher

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

32.

INSPECT REAR NO. 3 SPEAKER ASSEMBLY

(a) Remove the rear No. 3 speaker assembly (See page 2016 - 2020 MY Sienna [12/2015 -        ]; AUDIO / VIDEO: BACK DOOR SPEAKER: REMOVAL ).

(b) Inspect the rear No. 3 speaker assembly (See page 2016 - 2020 MY Sienna [12/2015 -        ]; AUDIO / VIDEO: BACK DOOR SPEAKER: INSPECTION ).

OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

(See page 2016 MY Sienna [12/2015 - 08/2016]; NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: PROBLEM SYMPTOMS TABLE 2017 MY Sienna [08/2016 - 11/2017]; NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: PROBLEM SYMPTOMS TABLE )

NG

REPLACE REAR NO. 3 SPEAKER ASSEMBLY