POWER SUPPLY AND GROUND CIRCUIT
AUDIO UNIT
AUDIO UNIT : Diagnosis Procedure
Regarding Wiring Diagram information, refer to AV-27, "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 TWEETER
Diagnosis Procedure
Regarding Wiring Diagram information, refer to AV-27, "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-66, "Removal and Installation".
NO >> Replace audio unit. Refer to AV-64, "Removal and Installation".
FRONT DOOR SPEAKER
Diagnosis Procedure
Regarding Wiring Diagram information, refer to AV-27, "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-67, "Removal and Installation".
NO >> Replace audio unit. Refer to AV-64, "Removal and Installation".
REAR DOOR SPEAKER
Diagnosis Procedure
Regarding Wiring Diagram information, refer to AV-27, "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 DOOR SPEAKER SIGNAL CIRCUIT CONTINUITY
Is the inspection result normal? YES >> GO TO 3.
NO >> Repair or replace harness or connectors.
3.CHECK REAR DOOR SPEAKER SIGNAL
Is the inspection result normal? YES >> Replace rear door speaker. Refer to AV-68, "Removal and Installation".
NO >> Replace audio unit. Refer to AV-64, "Removal and Installation".
REAR VIEW CAMERA IMAGE SIGNAL CIRCUIT
Diagnosis Procedure
Regarding Wiring Diagram information, refer to AV-27, "Wiring Diagram".
1.CHECK REVERSE INPUT SIGNAL
Is inspection result normal? YES >> GO TO 2.
NO >> Repair or replace harness or connectors.
2.CHECK CAMERA POWER SUPPLY CIRCUIT CONTINUITY
Is inspection result normal? YES >> GO TO 3.
NO >> Repair or replace harness or connectors.
3.CHECK CAMERA POWER SUPPLY VOLTAGE
Is inspection result normal? YES >> GO TO 4.
NO >> Replace audio unit. Refer to AV-64, "Removal and Installation".
4.CHECK CAMERA IMAGE SIGNAL CIRCUIT CONTINUITY
Is inspection result normal? YES >> GO TO 5.
NO >> Repair or replace harness or connectors.
5.CHECK CAMERA GROUND CIRCUIT CONTINUITY
Check continuity between audio unit connector M87 and rear view camera connector D504.
Is inspection result normal? YES >> GO TO 6.
NO >> Repair or replace harness or connectors.
6.CHECK CAMERA IMAGE SIGNAL
Is inspection result normal? YES >> Replace audio unit. Refer to AV-64, "Removal and Installation".
NO >> Replace rear view camera. Refer to AV-71, "Removal and Installation".
MICROPHONE SIGNAL CIRCUIT
Diagnosis Procedure
Regarding Wiring Diagram information, refer to AV-27, "Wiring Diagram".
1.CHECK HARNESS BETWEEN AUDIO UNIT AND MICROPHONE
Is the inspection result normal? YES >> GO TO 2.
NO >> Repair harness or connectors.
2.CHECK MICROPHONE POWER SUPPLY
Is the inspection result normal? YES >> GO TO 3.
NO >> Replace audio unit. Refer to AV-64, "Removal and Installation".
3.CHECK MICROPHONE SIGNAL
Check signal between terminals of audio unit connector M87.
Is the inspection result normal? YES >> Replace audio unit. Refer to AV-64, "Removal and Installation".
NO >> Replace microphone. Refer to AV-70, "Removal and Installation".
STEERING SWITCH
Diagnosis Procedure
Regarding Wiring Diagram information, refer to AV-27, "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-65, "Removal and Installation".
2.CHECK HARNESS BETWEEN COMBINATION METER AND COMBINATION SWITCH
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace harness or connectors.
3.CHECK COMBINATION SWITCH
Check continuity between combination switch connectors M90 and M30.
Is the inspection result normal? YES >> GO TO 4.
NO >> Replace spiral cable. Refer to SR-15, "Removal and Installation".
4.CHECK HARNESS BETWEEN COMBINATION METER AND AUDIO UNIT
Is the inspection result normal? YES >> Replace audio unit. Refer to AV-64, "Removal and Installation".
NO >> Repair or replace harness or connectors.
USB CONNECTOR
Diagnosis Procedure
Regarding Wiring Diagram information, refer to AV-27, "Wiring Diagram".
1.CHECK USB INTERFACE HARNESS CONTINUITY
Is the inspection result normal? YES >> Replace the USB interface. Refer to AV-69, "Removal and Installation".
NO >> Repair or replace harness or connectors.
AUXILIARY INPUT JACK
Diagnosis Procedure
Regarding Wiring Diagram information, refer to AV-27, "Wiring Diagram".
1.CHECK AUX JACK HARNESS CONTINUITY
Is the inspection result normal? YES >> Replace the AUX in jack. Refer to AV-69, "Removal and Installation".
NO >> Repair or replace harness or connectors.
O/D off indicator lamp
Component Function Check
1.CHECK O/D OFF INDICATOR LAMP FUNCTION
Check O/D OFF indicator lamp turns ON for approx. 2 seconds when ignition
switch turns ON.
Is the inspection results normal?
YES >> INSPECTION END
NO >> Go to TM-181, "Diagnosis Procedure".
Diagnosis Pro ...
DTC/circuit diagnosis
SPORT MODE SWITCH
Component Function Check
1. CHECK SPORT MODE SWITCH OPERATION
Turn ignition switch ON.
Check SPORT mode indicator lamp turns ON/OFF on combination meter
when turn SPORT mode switch
ON/OFF.
Is the inspection result normal?
YES >> INSPECTION END
NO ...
Possible commands - BMW Intelligent Personal
Assistant
Possible commands
General information
Most contents on the Control Display can be
spoken as commands, e.g. menu items or list entries.
Say list entries as shown.
Instructions can be issued or questions can be
asked where the Personal Assistant provides
support.
Function examples
Vehicle status and ...