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 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-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 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
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-60, "Removal and Installation".
NO >> Replace audio unit. Refer to AV-58, "Removal and Installation".
Front tweeter
Diagnosis procedure
Regarding wiring diagram information, refer to av-25, "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-59, "removal and installation".
No >> replace audio unit. Refer to av-58, "removal and installation".
Rear speaker
Diagnosis procedure
Regarding wiring diagram information, refer to av-25, "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-61, "Removal and Installation".
NO >> Replace audio unit. Refer to AV-58, "Removal and Installation".
BluetoothВ® voice signal circuit
Diagnosis procedure
Regarding Wiring Diagram information, refer to AV-25, "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 m44 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-68, "removal and installation".
No >> replace audio unit. Refer to av-58, "removal and installation".
BluetoothВ® control signal circuit
Diagnosis Procedure
Regarding wiring diagram information, refer to av-25, "wiring diagram".
1.Check control signal circuit continuity
Is the inspection result normal? YES >> Replace BluetoothВ® control unit. Refer to AV-68, "Removal and Installation".
NO >> Repair or replace harness or connectors.
Microphone signal circuit
Diagnosis procedure
Regarding wiring diagram information, refer to av-25, "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-68, "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-68, "removal and installation".
No >> replace microphone. Refer to av-69, "removal and installation".
Steering switch
Diagnosis procedure
Regarding wiring diagram information, refer to av-25, "wiring diagram".
With bluetoothВ®
1.Check steering wheel audio control switch resistance
Is the inspection result normal? Yes >> go to 2.
No >> replace steering switches. Refer to av-62, "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-58, "removal and installation".
No >> repair or replace harness or connectors.
Without bluetoothВ®
1.Check steering wheel audio control switch resistance
Is the inspection result normal? Yes >> go to 2.
No >> replace steering switches. Refer to av-62, "removal and installation".
2.Check combination switch (spiral cable)
Check continuity between combination switch (spiral cable) connectors M79 and M80.
Is the inspection result normal? Yes >> go to 3.
No >> replace combination switch (spiral cable). Refer to sr-16, "removal and installation".
3.Check harness between combination switch (spiral cable) and audio unit
Is the inspection result normal? Yes >> replace audio unit. Refer to av-58, "removal and installation".
No >> repair or replace harness or connectors.
Operating tips
CAUTION
Do not use alcohol, benzine or thinner
to clean the camera. This will cause
discoloration. To clean the camera,
wipe with a cloth dampened with a diluted
mild cleaning agent and then wipe
with a dry cloth.
Do not damage the camera as the monitor
screen may be adversely affe ...
Diagnosis system (TCM)
DIAGNOSIS DESCRIPTION
DIAGNOSIS DESCRIPTION : 1 Trip Detection Diagnosis and 2 Trip Detection
Diagnosis
NOTE:
“Start the engine and turn OFF the ignition switch after warm-up.” This is
defined as 1 trip.
TRIP DETECTION DIAGNOSIS
When initial malfunction is detected, TCM mem ...
C1120, C1122, C1124, C1126 ABS In valve system
DTC Logic
Dtc detection logic
DTC
Display Item
Malfunction detected condition
Possible causes
C1120
FR LH IN ABS SOL
When a malfunction is detected in front LH ABS IN
valve.
Harness or connector
ABS actuator and electric unit
(control unit)
...