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AV-72
< COMPONENT DIAGNOSIS >[AUDIO WITH NAVIGATION]
U1212 NAVI CONTROL UNIT
U1212 NAVI CONTROL UNIT
DescriptionINFOID:0000000001728701
DTC LogicINFOID:0000000001728702
Diagnosis ProcedureINFOID:0000000001728703
1.PERFORM THE SELF-DIAGNOSIS
1. Delete the self-diagnosis results. Turn ignition switch OFF.
2. Turn ignition switch ON. Replace map DVD-ROM with a normal one.
3. Perform the self-diagnosis again.
4. Check that the DTC is detected again.
Is any DTC detected?
YES >> Replace NAVI control unit.
NO >> Replace Map disc.
Part name Description
NAVI CONTORL UNIT Map data can be read from the map DVD-ROM by installing map DVD-ROM.
 It is the master unit of the MULTI AV system, and it is connected to each control
unit by means of communication. It operates each system according to com-
munication signals from the NAVI control unit.
 The NAVI control unit includes the audio, hands-free phone, navigation, and
vehicle information functions.
 It is connected to ECM and combination meter via CAN communication to ob-
tain necessary information for the vehicle information function.
 It inputs the illumination signals that are required for the display dimming con-
trol.
 It inputs the signals for driving status recognition (vehicle speed, reverse and
parking brake).
MAP DVD-ROM A collection of map data
DTCDisplay contents of
CONSULT-IIIDTC Detection Condition Probable malfunction location
U1212DVD-ROM DATA FOR-
WARD [U1212] Malfunction is detected on DVD-ROM drive pickup lens
in NAVI control unit.
 There is dirt and damage on the map disc.Map disc
NAVI control unit

AV
U1213 NAVI CONTROL UNIT
AV-73
< COMPONENT DIAGNOSIS >[AUDIO WITH NAVIGATION]
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U1213 NAVI CONTROL UNIT
DescriptionINFOID:0000000001728704
DTC LogicINFOID:0000000001728705
Diagnosis ProcedureINFOID:0000000001728706
1.PERFORM THE SELF-DIAGNOSIS
1. Delete the self-diagnosis results. Turn ignition switch OFF.
2. Turn ignition switch ON. Replace map DVD-ROM with a normal one.
3. Perform the self-diagnosis again.
4. Check that the DTC is detected again.
Is any DTC detected?
YES >> Replace NAVI control unit.
NO >> Replace Map disc.
Part name Description
NAVI CONTORL UNIT Map data can be read from the map DVD-ROM by installing map DVD-ROM.
 It is the master unit of the MULTI AV system, and it is connected to each control
unit by means of communication. It operates each system according to com-
munication signals from the NAVI control unit.
 The NAVI control unit includes the audio, hands-free phone, navigation, and
vehicle information functions.
 It is connected to ECM and combination meter via CAN communication to ob-
tain necessary information for the vehicle information function.
 It inputs the illumination signals that are required for the display dimming con-
trol.
 It inputs the signals for driving status recognition (vehicle speed, reverse and
parking brake).
MAP DVD-ROM A collection of map data
DTCDisplay contents of
CONSULT-IIIDTC Detection Condition Probable malfunction location
U1213DVD-ROM DATA
[U1213] Malfunction is detected on DVD-ROM drive pickup lens
in NAVI control unit.
 There is dirt and damage on the map disc. Map disc
 NAVI control unit

AV-74
< COMPONENT DIAGNOSIS >[AUDIO WITH NAVIGATION]
U1214 NAVI CONTROL UNIT
U1214 NAVI CONTROL UNIT
DescriptionINFOID:0000000001728707
DTC LogicINFOID:0000000001728708
Diagnosis ProcedureINFOID:0000000001728709
1.PERFORM THE SELF-DIAGNOSIS
1. Delete the self-diagnosis results. Turn ignition switch OFF.
2. Turn ignition switch ON. Replace map DVD-ROM with a normal one.
3. Perform the self-diagnosis again.
4. Check that the DTC is detected again.
Is any DTC detected?
YES >> Replace NAVI control unit.
NO >> Replace Map disc.
Part name Description
NAVI CONTORL UNIT Map data can be read from the map DVD-ROM by installing map DVD-ROM.
 It is the master unit of the MULTI AV system, and it is connected to each control
unit by means of communication. It operates each system according to com-
munication signals from the NAVI control unit.
 The NAVI control unit includes the audio, hands-free phone, navigation, and
vehicle information functions.
 It is connected to ECM and combination meter via CAN communication to ob-
tain necessary information for the vehicle information function.
 It inputs the illumination signals that are required for the display dimming con-
trol.
 It inputs the signals for driving status recognition (vehicle speed, reverse and
parking brake).
MAP DVD-ROM A collection of map data
DTCDisplay contents of
CONSULT-IIIDTC Detection Condition Probable malfunction location
U1214DVD-ROM TIMEOUT
[U1214] Malfunction is detected on DVD-ROM drive pickup lens
in NAVI control unit.
 There is dirt and damage on the map disc.Map disc
NAVI control unit

AV
U1215 NAVI CONTROL UNIT
AV-75
< COMPONENT DIAGNOSIS >[AUDIO WITH NAVIGATION]
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U1215 NAVI CONTROL UNIT
DescriptionINFOID:0000000001728710
DTC LogicINFOID:0000000001728711
Diagnosis ProcedureINFOID:0000000001728712
1.PERFORM THE SELF-DIAGNOSIS
1. Delete the self-diagnosis results. Turn ignition switch OFF.
2. Turn ignition switch ON. Replace map DVD-ROM with a normal one.
3. Perform the self-diagnosis again.
4. Check that the DTC is detected again.
Is any DTC detected?
YES >> Replace NAVI control unit.
NO >> Replace Map disc.
Part name Description
NAVI CONTORL UNIT Map data can be read from the map DVD-ROM by installing map DVD-ROM.
 It is the master unit of the MULTI AV system, and it is connected to each control
unit by means of communication. It operates each system according to com-
munication signals from the NAVI control unit.
 The NAVI control unit includes the audio, hands-free phone, navigation, and
vehicle information functions.
 It is connected to ECM and combination meter via CAN communication to ob-
tain necessary information for the vehicle information function.
 It inputs the illumination signals that are required for the display dimming con-
trol.
 It inputs the signals for driving status recognition (vehicle speed, reverse and
parking brake).
MAP DVD-ROM A collection of map data
DTCDisplay contents of
CONSULT-IIIDTC Detection Condition Probable malfunction location
U1215DVD-ROM LOAD
[U1215] Malfunction is detected on DVD-ROM drive pickup lens
in NAVI control unit.
 There is dirt and damage on the map disc. Map disc
 NAVI control unit

AV-76
< COMPONENT DIAGNOSIS >[AUDIO WITH NAVIGATION]
U1243 DISPLAY UNIT
U1243 DISPLAY UNIT
DescriptionINFOID:0000000001728713
DTC LogicINFOID:0000000001728714
Diagnosis ProcedureINFOID:0000000001728715
1.CHECK DISPLAY UNIT POWER SUPPLY AND GROUND CIRCUIT
Check display unit power supply and ground circuit. Refer to AV-81, "
DISPLAY UNIT : Diagnosis Procedure".
Is inspection result OK?
YES >> GO TO 2
NO >> Repair malfunctioning parts.
2.CHECK CONTINUITY COMMUNICATION CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect display unit connector and NAVI control unit connector.
3. Check continuity between display unit harness connector terminals 17, 19 and NAVI control unit harness
connector terminals 54, 53.
4. Check continuity between display unit harness connector terminals 17, 19 and ground.
Is inspection result OK?
YES >> GO TO 3
NO >> Repair harness or connector.
3.CHECK COMMUNICATION SIGNAL
1. Connect display unit connector and NAVI control unit connector.
2. Turn ignition switch ON.
3. Check signal between display unit harness connector terminal 17 and ground.
Part name Description
DISPLAY UNIT Display image is controlled by the serial communication from NAVI control unit.
 RGB image signal is input from NAVI control unit (RGB, RGB area and RGB
synchronizing). Camera image signal is input from camera control unit.
 Synchronize signal (HP, VP) is output to NAVI control unit.
DTCDisplay contents of
CONSULT-IIIDTC Detection Condition Possible causes
U1243FRONT DISP CONN
[U1243] Display unit power supply and ground circuit malfunc-
tion is detected.
 Malfunction is detected on communication circuit be-
tween display unit and NAVI control unit.
 Malfunction is detected on communication signal be-
tween display unit and NAVI control unit. Display unit power supply and
ground circuit
 Communication circuit between
display unit and NAVI control unit
17 - 54 : Continuity should exist.
19 - 53 : Continuity should exist.
17, 19 - Ground : Continuity should not exist.

AV
U1243 DISPLAY UNIT
AV-77
< COMPONENT DIAGNOSIS >[AUDIO WITH NAVIGATION]
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Is inspection result OK?
YES >> GO TO 4
NO >> Replace NAVI control unit.
4.CHECK COMMUNICATION SIGNAL
Check signal between display unit harness connector terminal 19 and ground.
Is inspection result OK?
YES >> INSPECTION END.
NO >> Replace display unit.
17 - Ground
PKIB5039J
19 - Ground
PKIB5039J

AV-78
< COMPONENT DIAGNOSIS >[AUDIO WITH NAVIGATION]
U1244 GPS ANTENNA
U1244 GPS ANTENNA
DescriptionINFOID:0000000001728716
DTC LogicINFOID:0000000001728717
Diagnosis ProcedureINFOID:0000000001728718
1.CHECK GPS ANTENNA
Visually check GPS antenna and antenna feeder.
Is inspection result OK?
YES >> GO TO 2.
NO >> Repair malfunctioning parts.
2.CHECK NAVI CONTROL UNIT VOLTAGE
1. Disconnect GPS antenna connector.
2. Turn ignition switch ON.
3. Check voltage between NAVI control unit terminal 73 and ground.
Is inspection result OK?
YES >> INSPECTION END
NO >> Replace NAVI control unit.
Part name Description
GPS ANTENNA GPS signal is received and sent to NAVI control unit.
DTCDisplay contents of
CONSULT-IIIDTC Detection Condition Possible causes
U1244GPS ANTENNA CONN
[U1244]GPS antenna connection malfunction is detected. GPS antenna disconnection
73 - Ground : Approx. 5 V

AV
U1300 AV COMM CIRCUIT
AV-79
< COMPONENT DIAGNOSIS >[AUDIO WITH NAVIGATION]
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U1300 AV COMM CIRCUIT
DescriptionINFOID:0000000001728722
U1300 is indicated when malfunction occurs in communication signal of multi AV system. It is indicated simul-
taneously, without fail, with the malfunction of control units connected to NAVI control unit with communication
line. It determines the possible malfunction cause from the table below.
SELF-DIAGNOSIS RESULTS DISPLAY ITEM
DTCDisplay contents of
CONSULT-IIIDescriptionPossible malfunction factor/Action to
take
U1300
U1240
U1249
U124E
U124F AV COMM CIRCUIT
[U1300]
 SWITCH CONN
[U1240]
 AUDIO H/U CONN
[U1249]
 AMP CONN [U124E]
 RDS CONN [U124F] Audio unit power supply and ground circuit malfunction
is detected.
 Malfunction occurs in AV communication circuit be-
tween NAVI control unit and audio unit.
 Malfunction is detected in AV communication signal be-
tween NAVI control unit and audio unit. Audio unit power supply and
ground circuits
Refer to AV- 8 0 , "
AV CONTROL
UNIT : Diagnosis Procedure".
 AV communication circuit between
NAVI control unit and audio unit

AV-80
< COMPONENT DIAGNOSIS >[AUDIO WITH NAVIGATION]
POWER SUPPLY AND GROUND CIRCUIT
POWER SUPPLY AND GROUND CIRCUIT
AV CONTROL UNIT
AV CONTROL UNIT : Diagnosis ProcedureINFOID:0000000001728724
1.CHECK FUSE
Check for blown fuses.
Is inspection result OK?
YES >> GO TO 2
NO >> Be sure to eliminate cause of malfunction before installing new fuse.
2.CHECK POWER SUPPLY CIRCUIT
Check voltage between AV control unit harness connectors and ground.
Is inspection result OK?
YES >> GO TO 3
NO >> Check harness between AV control unit and fuse.
3.CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect AV control unit connectors.
3. Check continuity between AV control unit harness connector and ground.
Is inspection result OK?
YES >> INSPECTION END.
NO >> Repair harness or connector.
NAVI CONTROL UNIT
NAVI CONTROL UNIT : Diagnosis ProcedureINFOID:0000000001728723
1.CHECK FUSE
Check for blown fuses.
Is inspection result OK?
YES >> GO TO 2
NO >> Be sure to eliminate cause of malfunction before installing new fuse.
2.CHECK POWER SUPPLY CIRCUIT
Check voltage between NAVI control unit harness connectors and ground.
Power source Fuse No.
Battery 27
Ignition switch ACC or ON 6
Signal name Connector No. Terminal No. Ignition switch position Value (Approx.)
Battery power supply M44 19 OFF 12V
ACC power supply M44 7 ACC 12V
Signal name Connector No. Terminal No. Ignition switch position Continuity
Ground M44 21 OFF Continuity should exist.
Power source Fuse No.
Battery 27
Ignition switch ACC or ON 6
Ignition switch ON or START 2

AV
POWER SUPPLY AND GROUND CIRCUIT
AV-81
< COMPONENT DIAGNOSIS >[AUDIO WITH NAVIGATION]
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Is inspection result OK?
YES >> GO TO 3
NO >> Check harness between NAVI control unit and fuse.
3.CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect NAVI control unit connectors.
3. Check continuity between NAVI control unit harness connector and ground.
Is inspection result OK?
YES >> INSPECTION END.
NO >> Repair harness or connector.
DISPLAY UNIT
DISPLAY UNIT : Diagnosis ProcedureINFOID:0000000001728725
1.CHECK FUSE
Check for blown fuses.
Is inspection result OK?
YES >> GO TO 2
NO >> Be sure to eliminate cause of malfunction before installing new fuse.
2.CHECK POWER SUPPLY CIRCUIT
Check voltage between display unit harness connectors and ground.
Is inspection result OK?
YES >> GO TO 3
NO >> Check harness between display unit and fuse.
3.CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect display unit connector.
3. Check continuity between display unit harness connector and ground.
Is inspection result OK?
YES >> INSPECTION END.
NO >> Repair harness or connector.
Signal name Connector No. Terminal No. Ignition switch position Value (Approx.)
Battery power supply B69 2 OFF 12V
ACC power supply B69 5 ACC 12V
Ignition signal B68 63 ON 12V
Signal name Connector No. Terminal No. Ignition switch position Continuity
Ground B69 1 OFF Continuity should exist.
Power source Fuse No.
Battery 27
Ignition switch ACC or ON 6
Signal name Connector No. Terminal No. Ignition switch position Value (Approx.)
Battery power supply M100 21 OFF 12V
ACC power supply M100 20 ACC 12V
Signal name Connector No. Terminal No. Ignition switch position Continuity
Ground M100 23 OFF Continuity should exist.