Power supply and ground circuit
Audio unit
AUDIO UNIT : Diagnosis Procedure
Regarding wiring diagram information, refer to av-88, "wiring diagram".
1.Check fuse
Check that the following fuses are not blown.
Are the fuses blown? Yes >> replace the blown fuse after repairing the affected circuit.
No >> go to 2.
2.Check power supply circuit
Is the inspection result normal? YES >> GO TO 3.
NO >> Repair or replace harness or connectors.
3.Check ground circuit
Is the inspection result normal? Yes >> inspection end.
No >> repair or replace harness or connectors.
BluetoothВ® control unit
BLUETOOTHВ® CONTROL UNIT : Diagnosis Procedure
Regarding Wiring Diagram information, refer to AV-88, "Wiring Diagram".
1.Check fuse
Check that the following fuses are not blown.
Are the fuses blown? Yes >> replace the blown fuse after repairing the affected circuit.
No >> go to 2.
2.Check power supply circuit
Is the inspection result normal? Yes >> go to 3.
No >> repair or replace harness or connectors.
3.Check ground circuit
Is the inspection result normal? YES >> Inspection End.
NO >> Repair or replace harness or connectors.
Front door speaker
Diagnosis procedure
Regarding Wiring Diagram information, refer to AV-88, "Wiring Diagram".
1.Connector check
Check the audio unit and speaker connectors for the following:
Is the inspection result normal? Yes >> go to 2
NO >> Repair the terminals or connectors.
2.Check front door speaker signal circuit continuity
Is the inspection result normal? YES >> GO TO 3
NO >> Repair or replace harness or connectors.
3.Check front door speaker signal
Is the inspection result normal? Yes >> replace front door speaker. Refer to av-124, "removal and installation".
No >> replace audio unit. Refer to av-122, "removal and installation".
Front tweeter
Diagnosis procedure
Regarding Wiring Diagram information, refer to AV-88, "Wiring Diagram".
1.Connector check
Check the audio unit and speaker connectors for the following:
Is the inspection result normal? YES >> GO TO 2
No >> repair the terminals or connectors.
2.Check front tweeter signal circuit continuity
Is the inspection result normal? Yes >> go to 3
No >> repair or replace harness or connectors.
3.Check front tweeter signal
Is the inspection result normal? Yes >> replace front tweeter. Refer to av-123, "removal and installation".
No >> replace audio unit. Refer to av-122, "removal and installation".
Rear speaker
Diagnosis procedure
Regarding Wiring Diagram information, refer to AV-88, "Wiring Diagram".
1.Connector check
Check the audio unit and speaker connectors for the following:
Is the inspection result normal? YES >> GO TO 2
No >> repair the terminals or connectors.
2.Check rear speaker signal circuit continuity
Is the inspection result normal? Yes >> go to 3
No >> repair or replace harness or connectors.
3.Check rear speaker signal
Is the inspection result normal? Yes >> replace rear speaker. Refer to av-125, "removal and installation".
No >> replace audio unit. Refer to av-122, "removal and installation".
BluetoothВ® voice signal circuit
Diagnosis procedure
Regarding wiring diagram information, refer to av-88, "wiring diagram".
1.Check bluetoothВ® voice signal circuit continuity
Is inspection result normal? Yes >> go to 2.
No >> repair or replace harness or connectors.
2.Check bluetoothВ® voice signal ground circuit continuity
Check continuity between audio unit connector m93 and bluetoothВ® control unit connector m45.
Is inspection result normal? Yes >> go to 3.
No >> repair or replace harness or connectors.
3.Check bluetoothВ® voice signal
Is the inspection result normal? Yes >> replace bluetoothВ® control unit. Refer to av-134, "removal and installation".
No >> replace audio unit. Refer to av-122, "removal and installation".
BluetoothВ® control signal circuit
Diagnosis procedure
Regarding wiring diagram information, refer to av-88, "wiring diagram".
1.Check control signal circuit continuity
Is the inspection result normal? YES >> Replace BluetoothВ® control unit. Refer to AV-134, "Removal and Installation".
NO >> Repair or replace harness or connectors.
Microphone signal circuit
Diagnosis Procedure
Regarding wiring diagram information, refer to av-88, "wiring diagram".
1.Check harness between bluetoothВ® control unit and microphone
Are continuity results as specified? Yes >> go to 2
NO >> Repair harness or connectors.
2.Check microphone power supply
Is the voltage reading as specified? Yes >> go to 3
No >> replace bluetoothВ® control unit. Refer to av-134, "removal and installation".
3.Check microphone signal
Check signal between terminals of BluetoothВ® control unit connector M45.
Were voltage readings as specified? Yes >> replace bluetoothВ® control unit. Refer to av-134, "removal and installation".
No >> replace microphone. Refer to av-135, "removal and installation".
Steering switch
Diagnosis procedure
Regarding wiring diagram information, refer to av-88, "wiring diagram".
1.Check steering wheel audio control switch resistance
Is the inspection result normal? YES >> GO TO 2.
NO >> Replace steering switches. Refer to AV-208, "Removal and Installation".
2.Check harness between bluetoothВ® control unit and combination switch (spiral cable)
Is the inspection result normal? Yes >> go to 3.
NO >> Repair or replace harness or connectors.
3.Check combination switch (spiral cable)
Check continuity between combination switch (spiral cable) connectors m79 and m80.
Is the inspection result normal? Yes >> go to 4.
No >> replace combination switch (spiral cable). Refer to sr-16, "removal and installation".
4.Check harness between bluetoothВ® control unit and audio unit
Is the inspection result normal? Yes >> replace audio unit. Refer to av-203, "removal and installation".
No >> repair or replace harness or connectors.
Usb connector
Diagnosis Procedure
Regarding Wiring Diagram information, refer to AV-88, "Wiring Diagram".
1.Check usb interface harness continuity
Is the inspection result normal? YES >> Replace the USB interface. Refer to AV-132, "Removal and Installation".
NO >> Repair or replace harness or connectors.
Dtc/circuit diagnosis
Power supply and ground circuit
Audio unit
Audio unit : diagnosis procedure
Regarding wiring diagram information, refer to av-25, "wiring diagram".
1.Check fuse
Check that the following fuses are not blown.
Are the fuses blown?
Yes >> replace the blown fuse after repairing t ...
How to erase permanent DTC
Description
OUTLINE
When a DTC is stored in ECM
When a DTC is stored in ECM and MIL is ON, a permanent DTC is erased with MIL
shutoff if the same malfunction
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in a raw.
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Dtc/circuit diagnosis
U1000 can comm circuit
Description
Refer to LAN-7, "CAN COMMUNICATION SYSTEM : System Description".
Dtc logic
DTC DETECTION LOGIC
NOTE:
U1000 can be set if a module harness was disconnected and reconnected,
perhaps during a repair. Confirm
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