VERSION

Displays version of each unit connected to the AV and NAVI control unit.

Scheme 93

Scheme 93: VERSION

Scheme 94

Scheme 95

Scheme 95: POWER SUPPLY AND GROUND CIRCUIT CHECK

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Scheme 97

Scheme 98

Scheme 99

CHECK FUSE Make sure the following fuses of the AV and NAVI control unit are not blown. OK or NG OK >> GO TO 2. NG >> If fuse is blown be sure to eliminate case of malfunction before installing new fuse. Refer to POWER DISTRIBUTION diagram in «SYSTEM WIRING DIAGRAMS»(ref-158468) .
POWER SUPPLY CIRCUIT CHECK Disconnect the AV and NAVI control unit connector. Check voltage between the following AV and NAVI control unit harness connector terminals and ground. OK or NG OK >> GO TO 3. NG >> Check harness for open or short between AV and NAVI control unit and fuse.
GROUND CIRCUIT CHECK Check continuity between the following AV and NAVI control unit and ground. OK or NG OK >> Inspection end. NG >> Repair or replace harness.

Scheme 100

Scheme 100: VEHICLE SPEED SIGNAL CHECK

Scheme 101

Scheme 102

HARNESS CHECK Turn ignition switch OFF. Disconnect AV and NAVI control unit connector and combination meter connector. Check continuity between AV and NAVI control unit harness connector B29 terminal 28 (OR/L) and combination meter harness connector M41 terminal 37 (OR/L). Continuity should exist. Check continuity between AV and NAVI control unit harness connector B29 terminal 28 (OR/L) and ground. Continuity should not exist. OK or NG OK >> GO TO 2. NG >> Repair harness.
VEHICLE SPEED SIGNAL CHECK 1 Connect AV and NAVI control unit connector and combination meter connector. Turn ignition switch ON. Check voltage between AV and NAVI control unit harness connector B29 terminal 28 (OR/L) and ground. Approx. 3.5V or more OK or NG OK >> GO TO 3. NG >> Replace AV and NAVI control unit
VEHICLE SPEED SIGNAL CHECK 2 Drive vehicle at a constant speed. Check the signal between AV and NAVI control unit harness connector B29 terminal 28 (OR/L) and ground with CONSULT-II or oscilloscope. 28 (OR/L) - Ground : Refer to " «TERMINALS AND REFERENCE VALUE FOR AV AND NAVI CONTROL UNIT»(ref-181255-S06085891462005080300000) " . OK or NG OK >> Replace AV and NAVI control unit. NG >> Check combination meter system, refer to "INSPECTION/VEHICLE SPEED SIGNAL ".

Scheme 103

Scheme 103: ILLUMINATION CONTROL SIGNAL CHECK

Scheme 104

ILLUMINATION CONTROL SIGNAL CHECK Turn ignition switch ON. Check voltage between AV and NAVI control unit and ground. OK or NG OK >> Replace AV and NAVI control unit. NG >> Check harness for open or short between AV and NAVI control unit and BCM.

Scheme 105

Scheme 105: IGNITION SIGNAL CHECK

IGNITION SIGNAL CHECK Disconnect the AV and NAVI control unit connector. Turn ignition switch ON. Check voltage between AV and NAVI control unit harness connector B29 terminal 26 (W/G) and ground. Battery voltage should exist. OK or NG OK >> Replace AV and NAVI control unit. NG >> Check harness for open or short between AV and NAVI control unit and fuse.

Scheme 106

Scheme 106: REVERSE SIGNAL CHECK

REVERSE LAMP CHECK Turn ignition switch ON. A/T shift selector lever into R-position. Does "R" in the shift position indicator come on? YES or NO YES >> GO TO 2. NO >> Check back-up lamp system. Refer to "BACK-UP LAMP ".
REVERSE SIGNAL CHECK With the selector lever in R-position, Check voltage between AV and NAVI control unit and ground.

Scheme 107

OK or NG

OK >> Replace AV and NAVI control unit.

NG >> Check harness for open or short between AV and NAVI control unit and back- up lamp relay.

Scheme 108

Scheme 108: RGB SCREEN IS NOT SHOWN

Scheme 109

Scheme 110

HARNESS CHECK Turn ignition switch OFF. Disconnect AV and NAVI control unit connector and Display connector. Check continuity between AV and NAVI control unit harness connector B30 terminal 12(B) and Display harness connector M82 terminal 8 (B). Continuity should exist. Check continuity between AV and NAVI control unit harness connector B30 terminal 13 (W) and Display harness connector M82 terminal 5 (W). Continuity should exist. Check continuity between AV and NAVI control unit harness connector B30 terminal 12 (B), 13 (W) and ground. Continuity should not exist. OK or NG OK >> GO TO 2. NG >> Repair harness.
HORIZONTAL SYNCHRONIZATION SIGNAL CHECK Connect AV and NAVI control unit connector and Display connector. Turn ignition switch ON. Check the signal between AV and NAVI control unit harness connector B30 terminals 13 (W) and 14 with CONSULT-II or oscilloscope. 13 (W) - 14 : Refer to " «TERMINALS AND REFERENCE VALUE FOR AV AND NAVI CONTROL UNIT»(ref-181255-S06085891462005080300000) " . OK or NG OK >> GO TO 3. NG >> Replace Display.
RGB AREA SIGNAL CHECK Press "INFO" switch. Check the signal between AV and NAVI control unit harness connector B30 terminals 12 (B) and 14 with CONSULT-II or oscilloscope. 12 (B) 14 : Refer to " «TERMINALS AND REFERENCE VALUE FOR AV AND NAVI CONTROL UNIT»(ref-181255-S06085891462005080300000) " . OK or NG OK >> Replace Display. NG >> Replace AV and NAVI control unit.

Scheme 111

Scheme 111: COLOR OF RGB IMAGE IS NOT PROPER

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Scheme 113

Scheme 114

Scheme 115

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Scheme 117

Scheme 118

Scheme 119

Scheme 120

COLOR BAR DIAGNOSIS CHECK Check color tone by "SCREEN ADJUSTMENT" of Confirmation/Adjustment Mode function. OK or NG OK >> Inspection end. NG >> GO TO 2.
HARNESS CHECK Turn ignition switch OFF. Disconnect AV and NAVI control unit connector and Display connector. Check continuity between AV and NAVI control unit and Display. Check continuity between AV and NAVI control unit and ground. When the screen looks bluish When the screen looks reddish When the screen looks yellowish OK or NG OK >> GO TO 3. NG >> Repair harness.
RGB SIGNAL CHECK Connect AV and NAVI control unit connector and Display connector. Turn ignition switch ON. Display "Color bar" by "Confirmation/Adjustment Mode" mode. Check the following with CONSULT-II or oscilloscope. When the screen looks bluish. Voltage signal between AV and NAVI control unit connector B30 terminal 18 (R/L) and 19. 18 (R/L) - 19 : Refer to " «TERMINALS AND REFERENCE VALUE FOR AV AND NAVI CONTROL UNIT»(ref-181255-S06085891462005080300000) " . When the screen looks reddish. Voltage signal between AV and NAVI control unit connector B30 terminal 21 (R/W) and 19. 21 (R/W) - 19 : Refer to " «TERMINALS AND REFERENCE VALUE FOR AV AND NAVI CONTROL UNIT»(ref-181255-S06085891462005080300000) " . When the screen looks yellowish. Voltage signal between AV and NAVI control unit connector B30 terminal 15 (B) and 19. 15 (B) - 19 : Refer to " «TERMINALS AND REFERENCE VALUE FOR AV AND NAVI CONTROL UNIT»(ref-181255-S06085891462005080300000) " . OK or NG OK >> Replace Display. NG >> Replace AV and NAVI control unit.

Scheme 121

Scheme 121: RGB SCREEN IS ROLLING

Scheme 122

Scheme 123

Scheme 124

HARNESS CHECK Turn ignition switch OFF. Disconnect AV and NAVI control unit connector and Display connector. Check continuity between AV and NAVI control unit and Display. Check continuity between AV and NAVI control unit and ground. OK or NG OK >> GO TO 2. NG >> Repair harness.
RGB SYNCHRONIZING SIGNAL CHECK Connect AV and NAVI control unit connector and Display connector. Turn ignition switch ON. Check the signal between AV and NAVI control unit harness connector B30 terminals 16(G) and 14 with CONSULT-II or oscilloscope. 16(G) - 14 : Refer to " «TERMINALS AND REFERENCE VALUE FOR AV AND NAVI CONTROL UNIT»(ref-181255-S06085891462005080300000) " . OK or NG OK >> Replace Display. NG >> Replace AV and NAVI control unit.

Scheme 125

Scheme 125: GUIDE SOUND IS NOT HEARD

Scheme 126

Scheme 127

Scheme 128

CHECK VOICE GUIDE SETTING While driving in the dark pink route, voice guide does not operate. Is volume setting not switched ON? NOTE: Voice guide is only available at intersections that satisfy certain conditions (indicated by on the map). Therefore, guidance may not be given even when the route on the map changes direction. YES or NO YES >> GO TO 2. NO >> Switch the setting ON and turn the volume up.
HARNESS CHECK Turn ignition switch OFF. Disconnect AV and NAVI control unit connector and Bose speaker amp. connector. Check continuity between AV and NAVI control unit and Bose speaker amp. Check continuity between AV and NAVI control unit and ground. OK or NG OK >> GO TO 3. NG >> Repair harness.
VOICE GUIDE CHECK Connect AV and NAVI control unit connector and Bose speaker amp. connector. Turn ignition switch ON. Check the signal between AV and NAVI control unit harness connector B30 terminal 7 (R) and 8 (L) with CONSULT-II or oscilloscope. 7 (R) - 8 (L) : Refer to " «TERMINALS AND REFERENCE VALUE FOR AV AND NAVI CONTROL UNIT»(ref-181255-S06085891462005080300000) " . OK or NG OK >> Replace Bose speaker amp. NG >> Replace AV and NAVI control unit.

Scheme 129

Scheme 129: NO A/C DISPLAY IS SHOWN

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Scheme 131

Scheme 132

Scheme 133

HARNESS CHECK Turn ignition switch OFF. Disconnect A/C auto amp. connector and AV and NAVI control unit connector. Check continuity between A/C auto amp. and AV and NAVI control unit. Check continuity between AV and NAVI control unit and ground. OK or NG OK >> GO TO 2. NG >> Repair harness.
A/C-AV, AC-CLK COMMUNICATION SIGNAL CHECK Connect A/C auto amp. connector. Turn ignition switch ON. Check voltage between AV and NAVI control unit harness connector B29 terminal 37 (L/W), 39 (L/R) and ground. Approx. 3.5 or more OK or NG OK >> GO TO 3. NG >> Replace A/C auto amp.
A/C-AV, AC-CLK COMMUNICATION SIGNAL CHECK Connect AV and NAVI control unit connector. Turn ignition switch ON. Check the signal between AV and NAVI control unit harness connector B29 terminal 37 (L/W), 39 (L/R) and ground with CONSULT-II or oscilloscope. 37(L/W), 39(L/R) - ground : Refer to " «TERMINALS AND REFERENCE VALUE FOR AV AND NAVI CONTROL UNIT»(ref-181255-S06085891462005080300000) " . OK or NG OK >> Replace A/C auto amp. NG >> Replace AV and NAVI control unit.

Scheme 134

Scheme 134: A/C OPERATION IS NOT POSSIBLE

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Scheme 136

Scheme 137

Scheme 138

HARNESS CHECK Turn ignition switch OFF. Disconnect A/C auto amp. connector and AV and NAVI control unit connector. Check continuity between A/C auto amp. and AV and NAVI control unit. Check continuity between AV and NAVI control unit and ground. OK or NG OK >> GO TO 2. NG >> Repair harness.
AV-A/C, AC-CLK COMMUNICATION SIGNAL CHECK Connect A/C auto amp. connector. Turn ignition switch ON. Check voltage between AV and NAVI control unit harness connector B29 terminal 38 (L) and ground. Approx. 3.5 or more OK or NG OK >> GO TO 3. NG >> Replace A/C auto amp.
AV-A/C, AC-CLK COMMUNICATION SIGNAL CHECK Connect AV and NAVI control unit connector. Turn ignition switch ON. Check the signal between AV and NAVI control unit harness connector B29 terminal 38 (L), 39 (L/R) and ground with CONSULT-II or oscilloscope. 38 (L), 39 (L/R) - ground : Refer to " «TERMINALS AND REFERENCE VALUE FOR AV AND NAVI CONTROL UNIT»(ref-181255-S06085891462005080300000) " . OK or NG OK >> Replace A/C auto amp. NG >> Replace AV and NAVI control unit.

Scheme 139

Scheme 139: NO FUEL INFORMATION IS DISPLAYED/NO WARNING MESSAGE IS DISPLAYED

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Scheme 141

Scheme 142

Scheme 143

HARNESS CHECK Turn ignition switch OFF. Disconnect connectors of combination meter, BCM, and AV and NAVI control unit. Check continuity between AV and NAVI control unit and combination meter. Check continuity between AV and NAVI control unit and ground. OK or NG OK >> GO TO 2. NG >> Repair harness.
COMMUNICATION SIGNAL (AV-ME) CHECK Connect connectors of combination meter, BCM, and AV and NAVI control unit. Turn ignition switch ON. Check the signal between AV and NAVI control unit harness connector B29 terminal 33 (LG) and ground with CONSULT-II or oscilloscope. 33 (LG) - ground : Refer to " «TERMINALS AND REFERENCE VALUE FOR AV AND NAVI CONTROL UNIT»(ref-181255-S06085891462005080300000) " . OK or NG OK >> GO TO 3. NG >> Replace AV and NAVI control unit.
COMMUNICATION SIGNAL (ME-AV) CHECK Turn ignition switch to ON and display "VEHICLE ELECTRONIC SYSTEMS" screen. Check the signal between AV and NAVI control unit harness connector B29 terminal 32 (PU) and ground with CONSULT-II or oscilloscope. 32(PU) - ground : Refer to " «TERMINALS AND REFERENCE VALUE FOR AV AND NAVI CONTROL UNIT»(ref-181255-S06085891462005080300000) " . OK or NG OK >> Replace AV and NAVI control unit. NG >> Replace combination meter.

Scheme 144

Scheme 144: VEHICLE CONDITION SETTING IS NOT POSSIBLE

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Scheme 148

HARNESS CHECK Turn ignition switch OFF. Disconnect connectors of combination meter, BCM, and AV and NAVI control unit. Check continuity AV and NAVI control unit and BCM. Check continuity between AV and NAVI control unit and ground. OK or NG OK >> GO TO 2. NG >> Check harness between AV and NAVI control unit and BCM for open or short circuit. Check connector housings for disconnected or loose terminals.
COMMUNICATION SIGNAL (AV-ME) CHECK Connect connectors of combination meter, BCM, and AV and NAVI control unit. Turn ignition switch ON. Check the signal between AV and NAVI control unit harness connector B29 terminal 33 (LG) and ground with CONSULT-II or oscilloscope. 33 (LG) - ground : Refer to " «TERMINALS AND REFERENCE VALUE FOR AV AND NAVI CONTROL UNIT»(ref-181255-S06085891462005080300000) " . OK or NG OK >> GO TO 3. NG >> Replace AV and NAVI control unit.
COMMUNICATION SIGNAL (ME-AV) CHECK Turn ignition switch to ON and display "VEHICLE ELECTRONIC SYSTEMS" screen. Check the signal between AV and NAVI control unit harness connector B29 terminal 32 (PU) and ground with CONSULT-II or oscilloscope. 32 (PU) - ground : Refer to " «TERMINALS AND REFERENCE VALUE FOR AV AND NAVI CONTROL UNIT»(ref-181255-S06085891462005080300000) " . OK or NG OK >> Replace AV and NAVI control unit. NG >> Replace BCM.

VERSION Infiniti M45 II