Speaker Circuit [09/2019 -]: Procedure
- CHECK MODEL
Result:
B
See step 10
Result:
A
See step 2
- CHECK SPEAKER (OPERATION CHECK)
- Enter the "System Check Mode" screen. Refer to Check Speaker in Operation Check.
Refer to OPERATION CHECK [09/2019 - 10/2020] , or refer to OPERATION CHECK [10/2020 - ]
- 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 4
Result:
C
See step 8
Result:
A
See step 3
- 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 K4 radio and display receiver assembly connector.
- Disconnect the N1 and O1 front No. 1 speaker assembly connectors.
- Disconnect the K7 and K8 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 K4-1 (FR+) - K7-4 (TWR+) Always Below 1 Ω K4-6 (FR-) - K7-2 (TWR-) Always Below 1 Ω K4-2 (FL+) - K8-4 (TWL+) Always Below 1 Ω K4-7 (FL-) - K8-2 (TWL-) Always Below 1 Ω N1-2 - K7-3 (+) Always Below 1 Ω N1-1 - K7-1 (-) Always Below 1 Ω O1-2 - K8-3 (+) Always Below 1 Ω O1-1 - K8-1 (-) Always Below 1 Ω K4-1 (FR+) or K7-4 (TWR+) - Body ground Always 10 kΩ or higher K4-6 (FR-) or K7-2 (TWR-) - Body ground Always 10 kΩ or higher K4-2 (FL+) or K8-4 (TWL+) - Body ground Always 10 kΩ or higher K4-7 (FL-) or K8-2 (TWL-) - Body ground Always 10 kΩ or higher N1-2 or K7-3 (+) - Body ground Always 10 kΩ or higher N1-1 or K7-1 (-) - Body ground Always 10 kΩ or higher O1-2 or K8-3 (+) - Body ground Always 10 kΩ or higher O1-1 or K8-1 (-) - Body ground Always 10 kΩ or higher Result
Proceed to OK NG
Result:
OK
See step 6
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
- CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - DCM (TELEMATICS TRANSCEIVER) - FRONT NO. 1 SPEAKER ASSEMBLY - FRONT NO. 2 SPEAKER ASSEMBLY)
- Disconnect the K4 radio and display receiver assembly connector.
- Disconnect the N1 and O1 front No. 1 speaker assembly connectors.
- Disconnect the K7 and K8 front No. 2 speaker assembly connectors.
- Disconnect the K139 DCM (telematics transceiver) connector.
- Measure the resistance according to the value (s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition K4-1 (FR+) - K139-1 (SPI+) Always Below 1 Ω K4-6 (FR-) - K139-2 (SPI-) Always Below 1 Ω K139-3 (SPO+) - K7-4 (TWR+) Always Below 1 Ω K139-4 (SPO-) - K7-2 (TWR-) Always Below 1 Ω K4-2 (FL+) - K8-4 (TWL+) Always Below 1 Ω K4-7 (FL-) - K8-2 (TWL-) Always Below 1 Ω N1-2 - K7-3 (+) Always Below 1 Ω N1-1 - K7-1 (-) Always Below 1 Ω O1-2 - K8-3 (+) Always Below 1 Ω O1-1 - K8-1 (-) Always Below 1 Ω K4-1 (FR+) or K139-1 (SPI+) - Body ground Always 10 kΩ or higher K4-6 (FR-) or K139-2 (SPI-) - Body ground Always 10 kΩ or higher K4-2 (FL+) or K8-4 (TWL+) - Body ground Always 10 kΩ or higher K4-7 (FL-) or K8-2 (TWL-) - Body ground Always 10 kΩ or higher K139-3 (SPO+) or K7-4 (TWR+) - Body ground Always 10 kΩ or higher K139-4 (SPO-) or K7-2 (TWR-) - Body ground Always 10 kΩ or higher N1-2 or K7-3 (+) - Body ground Always 10 kΩ or higher N1-1 or K7-1 (-) - Body ground Always 10 kΩ or higher O1-2 or K8-3 (+) - Body ground Always 10 kΩ or higher O1-1 or K8-1 (-) - Body ground Always 10 kΩ or higher Result
Proceed to OK NG
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
Result:
OK
See step 5
- INSPECT DCM (TELEMATICS TRANSCEIVER)
- Remove the DCM (telematics transceiver).
Refer to REMOVAL [09/2019 - 10/2020] , or refer to REMOVAL [10/2020 - ]
- 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 1 (SPI+) - 3 (SPO+) Always Below 1 Ω 2 (SPI-) - 4 (SPO-) Always Below 1 Ω 1 (SPI+) - 2 (SPI-) Always 10 kΩ or higher 3 (SPO+) - 4 (SPO-) Always 10 kΩ or higher 1 (SPI+) or 3 (SPO+) - Body ground Always 10 kΩ or higher 2 (SPI-) or 4 (SPO-) - Body ground Always 10 kΩ or higher Result
Proceed to OK NG
Result:
NG
REPLACE DCM (TELEMATICS TRANSCEIVER). Refer to REMOVAL [09/2019 - 10/2020] , or refer to REMOVAL [10/2020 - ]
Result:
OK
See step 6
- Remove the DCM (telematics transceiver).
- INSPECT FRONT NO. 1 SPEAKER ASSEMBLY
- Remove the front No. 1 speaker assembly.
Refer to REMOVAL [09/2019 - ]
- Inspect the front No. 1 speaker assembly.
Refer to INSPECTION [06/2017 - ]
Result
Proceed to OK NG
Result:
NG
REPLACE FRONT NO. 1 SPEAKER ASSEMBLY. Refer to REMOVAL [09/2019 - ]
Result:
OK
See step 7
- Remove the front No. 1 speaker assembly.
- REPLACE FRONT NO. 2 SPEAKER ASSEMBLY
- Remove the front No. 2 speaker assembly.
Refer to REMOVAL [03/2017 - ]
- Inspect the front No. 2 speaker assembly.
Refer to INSPECTION [06/2017 - ]
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 [09/2019 - 10/2020] , or refer to PROBLEM SYMPTOMS TABLE [10/2020 - ]
- Remove the front No. 2 speaker assembly.
- CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - REAR SPEAKER ASSEMBLY)
- Disconnect the K4 radio and display receiver assembly connector.
- Disconnect the Q7 and P7 rear speaker assembly connectors.
- Measure the resistance according to the value (s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition K4-4 (RR+) - P7-2 Always Below 1 Ω K4-9 (RR-) - P7-1 Always Below 1 Ω K4-3 (RL+) - Q7-2 Always Below 1 Ω K4-8 (RL-) - Q7-1 Always Below 1 Ω K4-4 (RR+) or P7-2 - Body ground Always 10 kΩ or higher K4-9 (RR-) or P7-1 - Body ground Always 10 kΩ or higher K4-3 (RL+) or Q7-2 - Body ground Always 10 kΩ or higher K4-8 (RL-) or Q7-1 - Body ground Always 10 kΩ or higher Result
Proceed to OK NG
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
Result:
OK
See step 9
- INSPECT REAR SPEAKER ASSEMBLY
- Remove the rear speaker assembly.
Refer to REMOVAL [03/2017 - ]
- Inspect the rear speaker assembly.
Refer to INSPECTION [09/2019 - ]
Result
Proceed to OK NG
Result:
OK
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to PROBLEM SYMPTOMS TABLE [09/2019 - 10/2020] , or refer to PROBLEM SYMPTOMS TABLE [10/2020 - ]
Result:
NG
REPLACE REAR SPEAKER ASSEMBLY. Refer to REMOVAL [03/2017 - ]
- Remove the rear speaker assembly.
- CHECK SPEAKER (OPERATION CHECK)
- Enter the "System Check Mode" screen. Refer to Check Speaker in Operation Check.
Refer to OPERATION CHECK [09/2019 - 10/2020] , or refer to OPERATION CHECK [10/2020 - ]
- 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. 3 speaker assembly A Front No. 2 speaker assembly
(w/ Manual (SOS) Switch)B Front No. 2 speaker assembly
(w/o Manual (SOS) Switch)C Rear speaker assembly D Rear stereo component speaker assembly E HINT:
If sound cannot be heard from any speaker, inspect all of them.
Result:
B
See step 14
Result:
C
See step 17
Result:
D
See step 19
Result:
E
See step 21
Result:
A
See step 11
- Enter the "System Check Mode" screen. Refer to Check Speaker in Operation Check.
- CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - FRONT NO. 1 SPEAKER ASSEMBLY - FRONT NO. 3 SPEAKER ASSEMBLY)
- Disconnect the K14 stereo component amplifier assembly connector.
- Disconnect the N1 and O1 front No. 1 speaker assembly connectors.
- Disconnect the K109 and K110 front No. 3 speaker assembly connectors.
- Measure the resistance according to the value (s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition K14-15 (FR+) - K109-4 (+TW) Always Below 1 Ω K14-30 (FR-) - K109-2 (-TW) Always Below 1 Ω K14-13 (FL+) - K110-4 (+TW) Always Below 1 Ω K14-28 (FL-) - K110-2 (-TW) Always Below 1 Ω N1-2 - K109-3 (+) Always Below 1 Ω N1-1 - K109-1 (-) Always Below 1 Ω O1-2 - K110-3 (+) Always Below 1 Ω O1-1 - K110-1 (-) Always Below 1 Ω K14-15 (FR+) or K109-4 (+TW) - Body ground Always 10 kΩ or higher K14-30 (FR-) or K109-2 (-TW) - Body ground Always 10 kΩ or higher K14-13 (FL+) or K110-4 (+TW) - Body ground Always 10 kΩ or higher K14-28 (FL-) or K110-2 (-TW) - Body ground Always 10 kΩ or higher N1-2 or K109-3 (+) - Body ground Always 10 kΩ or higher N1-1 or K109-1 (-) - Body ground Always 10 kΩ or higher O1-2 or K110-3 (+) - Body ground Always 10 kΩ or higher O1-1 or K110-1 (-) - Body ground Always 10 kΩ or higher Result
Proceed to OK NG
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
Result:
OK
See step 12
- INSPECT FRONT NO. 1 SPEAKER ASSEMBLY
- Remove the front No. 1 speaker assembly.
Refer to REMOVAL [09/2019 - ]
- Inspect the front No. 1 speaker assembly.
Refer to INSPECTION [06/2017 - ]
Result
Proceed to OK NG
Result:
NG
REPLACE FRONT NO. 1 SPEAKER ASSEMBLY. Refer to REMOVAL [09/2019 - ]
Result:
OK
See step 13
- Remove the front No. 1 speaker assembly.
- REPLACE FRONT NO. 3 SPEAKER ASSEMBLY
- Remove the front No. 3 speaker assembly.
Refer to REMOVAL [06/2017 - ]
- Inspect the front No. 3 speaker assembly.
Refer to INSPECTION [06/2017 - ]
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 [09/2019 - 10/2020] , or refer to PROBLEM SYMPTOMS TABLE [10/2020 - ]
- Remove the front No. 3 speaker assembly.
- CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - DCM (TELEMATICS TRANSCEIVER) - FRONT NO. 2 SPEAKER ASSEMBLY)
- Disconnect the K14 stereo component amplifier assembly connector.
- Disconnect the K94 and K95 front No. 2 speaker assembly connectors.
- Disconnect the K139 DCM (telematics transceiver) connector.
- Measure the resistance according to the value (s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition K14-14 (TWR+) - K139-1 (SPI+) Always Below 1 Ω K14-29 (TWR-) - K139-2 (SPI-) Always Below 1 Ω K139-3 (SPO+) - K94-2 (TWR+) Always Below 1 Ω K139-4 (SPO-) - K94-1 (TWR-) Always Below 1 Ω K14-12 (TWL+) - K95-2 (TWL+) Always Below 1 Ω K14-27 (TWL-) - K95-1 (TWL-) Always Below 1 Ω K14-14 (TWR+) or K139-1 (SPI+) - Body ground Always 10 kΩ or higher K14-29 (TWR-) or K139-2 (SPI-) - Body ground Always 10 kΩ or higher K14-12 (TWL+) or K95-2 (TWL+) - Body ground Always 10 kΩ or higher K14-27 (TWL-) or K95-1 (TWL-) - Body ground Always 10 kΩ or higher K139-3 (SPO+) or K94-2 (TWR+) - Body ground Always 10 kΩ or higher K139-4 (SPO-) or K94-1 (TWR-) - Body ground Always 10 kΩ or higher Result
Proceed to OK NG
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
Result:
OK
See step 15
- INSPECT FRONT NO. 2 SPEAKER ASSEMBLY
- Remove the front No. 2 speaker assembly.
Refer to REMOVAL [03/2017 - ]
- Inspect the front No. 2 speaker assembly.
Refer to INSPECTION [06/2017 - ]
Result
Proceed to OK NG
Result:
NG
REPLACE FRONT NO. 2 SPEAKER ASSEMBLY. Refer to REMOVAL [03/2017 - ]
Result:
OK
See step 16
- Remove the front No. 2 speaker assembly.
- INSPECT DCM (TELEMATICS TRANSCEIVER)
- Remove the DCM (telematics transceiver).
Refer to REMOVAL [09/2019 - 10/2020] , or refer to REMOVAL [10/2020 - ]
- 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 1 (SPI+) - 3 (SPO+) Always Below 1 Ω 2 (SPI-) - 4 (SPO-) Always Below 1 Ω 1 (SPI+) - 2 (SPI-) Always 10 kΩ or higher 3 (SPO+) - 4 (SPO-) Always 10 kΩ or higher 1 (SPI+) or 3 (SPO+) - Body ground Always 10 kΩ or higher 2 (SPI-) or 4 (SPO-) - Body ground Always 10 kΩ or higher Result
Proceed to OK NG
Result:
OK
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to PROBLEM SYMPTOMS TABLE [09/2019 - 10/2020] , or refer to PROBLEM SYMPTOMS TABLE [10/2020 - ]
Result:
NG
REPLACE DCM (TELEMATICS TRANSCEIVER). Refer to REMOVAL [09/2019 - 10/2020] , or refer to REMOVAL [10/2020 - ]
- Remove the DCM (telematics transceiver).
- CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - FRONT NO. 2 SPEAKER ASSEMBLY)
- Disconnect the K14 stereo component amplifier assembly connector.
- Disconnect the K94 and K95 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 K14-14 (TWR+) - K94-2 (TWR+) Always Below 1 Ω K14-29 (TWR-) - K94-1 (TWR-) Always Below 1 Ω K14-12 (TWL+) - K95-2 (TWL+) Always Below 1 Ω K14-27 (TWL-) - K95-1 (TWL-) Always Below 1 Ω K14-14 (TWR+) or K94-2 (TWR+) - Body ground Always 10 kΩ or higher K14-29 (TWR-) or K94-1 (TWR-) - Body ground Always 10 kΩ or higher K14-12 (TWL+) or K95-2 (TWL+) - Body ground Always 10 kΩ or higher K14-27 (TWL-) or K95-1 (TWL-) - Body ground Always 10 kΩ or higher Result
Proceed to OK NG
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
Result:
OK
See step 18
- INSPECT FRONT NO. 2 SPEAKER ASSEMBLY
- Remove the front No. 2 speaker assembly.
Refer to REMOVAL [03/2017 - ]
- Inspect the front No. 2 speaker assembly.
Refer to INSPECTION [06/2017 - ]
Result
Proceed to OK NG
Result:
OK
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to PROBLEM SYMPTOMS TABLE [09/2019 - 10/2020] , or refer to PROBLEM SYMPTOMS TABLE [10/2020 - ]
Result:
NG
REPLACE FRONT NO. 2 SPEAKER ASSEMBLY. Refer to REMOVAL [03/2017 - ]
- Remove the front No. 2 speaker assembly.
- CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - REAR SPEAKER ASSEMBLY)
- Disconnect the K14 stereo component amplifier assembly connector.
- Disconnect the P7 and Q7 rear speaker assembly connectors.
- Measure the resistance according to the value (s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition K14-11 (RR+) - P7-2 Always Below 1 Ω K14-26 (RR-) - P7-1 Always Below 1 Ω K14-9 (RL+) - Q7-2 Always Below 1 Ω K14-24 (RL-) - Q7-1 Always Below 1 Ω K14-11 (RR+) or P7-2 - Body ground Always 10 kΩ or higher K14-26 (RR-) or P7-1 - Body ground Always 10 kΩ or higher K14-9 (RL+) or Q7-2 - Body ground Always 10 kΩ or higher K14-24 (RL-) or Q7-1 - Body ground Always 10 kΩ or higher Result
Proceed to OK NG
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
Result:
OK
See step 20
- INSPECT REAR SPEAKER ASSEMBLY
- Remove the rear speaker assembly.
Refer to REMOVAL [03/2017 - ]
- Inspect the rear speaker assembly.
Refer to INSPECTION [09/2019 - ]
Result
Proceed to OK NG
Result:
OK
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to PROBLEM SYMPTOMS TABLE [09/2019 - 10/2020] , or refer to PROBLEM SYMPTOMS TABLE [10/2020 - ]
Result:
NG
REPLACE REAR SPEAKER ASSEMBLY. Refer to REMOVAL [03/2017 - ]
- Remove the rear speaker assembly.
- CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - REAR STEREO COMPONENT SPEAKER ASSEMBLY)
- Disconnect the K14 stereo component amplifier assembly connector.
- Disconnect the R1 rear stereo component speaker assembly connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition K14-10 (WF1+) - R1-4 (WF1+) Always Below 1 Ω K14-25 (WF1-) - R1-3 (WF1-) Always Below 1 Ω K14-8 (WF2+) - R1-2 (WF2+) Always Below 1 Ω K14-23 (WF2-) - R1-1 (WF2-) Always Below 1 Ω K14-10 (WF1+) or R1-4 (WF1+) - Body ground Always 10 kΩ or higher K14-25 (WF1-) or R1-3 (WF1-) - Body ground Always 10 kΩ or higher K14-8 (WF2+) or R1-2 (WF2+) - Body ground Always 10 kΩ or higher K14-23 (WF2-) or R1-1 (WF2-) - Body ground Always 10 kΩ or higher Result
Proceed to OK NG
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
Result:
OK
See step 22
- INSPECT REAR STEREO COMPONENT SPEAKER ASSEMBLY
- Remove the rear stereo component speaker assembly.
Refer to REMOVAL [06/2017 - 10/2020] , or refer to REMOVAL [10/2020 - ]
- Inspect the rear stereo component speaker assembly.
Refer to INSPECTION [06/2017 - ]
Result
Proceed to OK NG
Result:
OK
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to PROBLEM SYMPTOMS TABLE [09/2019 - 10/2020] , or refer to PROBLEM SYMPTOMS TABLE [10/2020 - ]
Result:
NG
REPLACE REAR STEREO COMPONENT SPEAKER ASSEMBLY. Refer to REMOVAL [06/2017 - 10/2020] , or refer to REMOVAL [10/2020 - ]
- Remove the rear stereo component speaker assembly.