Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Speaker Circuit [08/2019 - 07/2020]: Procedure
- CHECK SPEAKER (OPERATION CHECK)
- Enter the "System Check Mode" screen. Refer to Check Speaker in Operation Check.
Refer to OPERATION CHECK [08/2019 - 07/2020]
- 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/o Manual (SOS) Switch) A Front No. 1 speaker assembly or front No. 2 speaker assembly (w/ Manual (SOS) Switch) B Rear speaker assembly C HINT:
If sound cannot be heard from any speaker, inspect all of them.
Result:
B
See step 3
Result:
C
See step 7
Result:
A
See step 2
- Enter the "System Check Mode" screen. Refer to Check Speaker in Operation Check.
- CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - FRONT NO. 1 SPEAKER ASSEMBLY - FRONT NO. 2 SPEAKER ASSEMBLY)
- Disconnect the F121 radio and display receiver assembly connector.
- Disconnect the J1 and I1 front No. 1 speaker assembly connectors.
- Disconnect the G3 and G6 front No. 2 speaker assembly connectors.
- Measure the resistance according to the value (s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition F121-1 (FR+) - G3-4 (TWR+) Always Below 1 Ω F121-6 (FR-) - G3-2 (TWR-) Always Below 1 Ω F121-2 (FL+) - G6-4 (TWL+) Always Below 1 Ω F121-7 (FL-) - G6-2 (TWL-) Always Below 1 Ω I1-1 - G3-3 (+) Always Below 1 Ω I1-2 - G3-1 (-) Always Below 1 Ω J1-1 - G6-3 (+) Always Below 1 Ω J1-2 - G6-1 (-) Always Below 1 Ω F121-1 (FR+) or G3-4 (TWR+) - Body ground Always 10 kΩ or higher F121-6 (FR-) or G3-2 (TWR-) - Body ground Always 10 kΩ or higher F121-2 (FL+) or G6-4 (TWL+) - Body ground Always 10 kΩ or higher F121-7 (FL-) or G6-2 (TWL-) - Body ground Always 10 kΩ or higher I1-1 or G3-3 (+) - Body ground Always 10 kΩ or higher I1-2 or G3-1 (-) - Body ground Always 10 kΩ or higher J1-1 or G6-3 (+) - Body ground Always 10 kΩ or higher J1-2 or G6-1 (-) - Body ground Always 10 kΩ or higher Result
Proceed to OK NG
Result:
OK
See step 5
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
- CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - FRONT NO. 1 SPEAKER ASSEMBLY - FRONT NO. 2 SPEAKER ASSEMBLY - DCM (TELEMATICS TRANSCEIVER))
- Disconnect the F121 radio and display receiver assembly connector.
- Disconnect the J1 and I1 front No. 1 speaker assembly connectors.
- Disconnect the G3 and G6 front No. 2 speaker assembly connectors.
- Disconnect the F36 DCM (telematics transceiver) connector.
- Measure the resistance according to the value (s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition F121-1 (FR+) - F36-2 (SPI+) Always Below 1 Ω F121-6 (FR-) - F36-3 (SPI-) Always Below 1 Ω F36-5 (SPO+) - G3-4 (TWR+) Always Below 1 Ω F36-6 (SPO-) - G3-2 (TWR-) Always Below 1 Ω F121-2 (FL+) - G6-4 (TWL+) Always Below 1 Ω F121-7 (FL-) - G6-2 (TWL-) Always Below 1 Ω I1-1 - G3-3 (+) Always Below 1 Ω I1-2 - G3-1 (-) Always Below 1 Ω J1-1 - G6-3 (+) Always Below 1 Ω J1-2 - G6-1 (-) Always Below 1 Ω F121-1 (FR+) or F36-2 (SPI+) - Body ground Always 10 kΩ or higher F121-6 (FR-) or F36-3 (SPI-) - Body ground Always 10 kΩ or higher F36-5 (SPO+) or G3-4 (TWR+) - Body ground Always 10 kΩ or higher F36-6 (SPO-) or G3-2 (TWR-) - Body ground Always 10 kΩ or higher F121-2 (FL+) or G6-4 (TWL+) - Body ground Always 10 kΩ or higher F121-7 (FL-) or G6-2 (TWL-) - Body ground Always 10 kΩ or higher I1-1 or G3-3 (+) - Body ground Always 10 kΩ or higher I1-2 or G3-1 (-) - Body ground Always 10 kΩ or higher J1-1 or G6-3 (+) - Body ground Always 10 kΩ or higher J1-2 or G6-1 (-) - Body ground Always 10 kΩ or higher Result
Proceed to OK NG
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
Result:
OK
See step 4
- INSPECT DCM (TELEMATICS TRANSCEIVER)
- Remove the DCM (telematics transceiver).
Refer to REMOVAL [08/2019 - 07/2020]
- Measure the resistance according to the value(s) in the table below.
*a Component without harness connected
(DCM (Telematics Transceiver))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+) or 5 (SPO+) - Body ground Always 10 kΩ or higher 3 (SPI-) or 6 (SPO-) - Body ground Always 10 kΩ or higher Result
Proceed to OK NG
Result:
NG
REPLACE DCM (TELEMATICS TRANSCEIVER). Refer to REMOVAL [08/2019 - 07/2020]
Result:
OK
See step 5
- Remove the DCM (telematics transceiver).
- INSPECT FRONT NO. 1 SPEAKER ASSEMBLY
- Remove the front No. 1 speaker assembly.
Refer to REMOVAL [11/2015 - ]
- Inspect the front No. 1 speaker assembly.
Refer to INSPECTION [11/2015 - ]
Result
Proceed to OK NG
Result:
NG
REPLACE FRONT NO. 1 SPEAKER ASSEMBLY. Refer to REMOVAL [11/2015 - ]
Result:
OK
See step 6
- Remove the front No. 1 speaker assembly.
- REPLACE FRONT NO. 2 SPEAKER ASSEMBLY
- Remove the front No. 2 speaker assembly.
Refer to REMOVAL [11/2015 - ]
- Inspect the front No. 2 speaker assembly.
Refer to INSPECTION [11/2015 - ]
OK
Malfunction disappears.
Result
Proceed to OK NG
Result:
OK
END
Result:
NG
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to PROBLEM SYMPTOMS TABLE [08/2019 - 07/2020]
- Remove the front No. 2 speaker assembly.
- CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - REAR SPEAKER ASSEMBLY)
- Disconnect the F121 radio and display receiver assembly connector.
- Disconnect the K4 and L5 rear speaker assembly connectors.
- Measure the resistance according to the value (s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition F121-4 (RR+) - K4-1 Always Below 1 Ω F121-9 (RR-) - K4-2 Always Below 1 Ω F121-3 (RL+) - L5-1 Always Below 1 Ω F121-8 (RL-) - L5-2 Always Below 1 Ω F121-4 (RR+) or K4-1 - Body ground Always 10 kΩ or higher F121-9 (RR-) or K4-2 - Body ground Always 10 kΩ or higher F121-3 (RL+) or L5-1 - Body ground Always 10 kΩ or higher F121-8 (RL-) or L5-2 - Body ground Always 10 kΩ or higher Result
Proceed to OK NG
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
Result:
OK
See step 8
- INSPECT REAR SPEAKER ASSEMBLY
- Remove the rear speaker assembly.
Refer to REMOVAL [11/2015 - ]
- Inspect the rear speaker assembly.
Refer to INSPECTION [11/2015 - ]
Result
Proceed to OK NG
Result:
OK
END
Result:
NG
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to PROBLEM SYMPTOMS TABLE [08/2019 - 07/2020]
- Remove the rear speaker assembly.
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.