Page 2817 of 3189
5 RGB SIGNAL CHECK
1. Connect AV and NAVI control unit connector and Display connector.
SKIA1421E
2. Turn the ignition switch ON.
3. Display “Color bar” by “CONFIRMATION/ADJUSTMENT” mode.
4. Check voltage signal between AV and NAVI control unit terminals 18, 21, 24 and 17 with oscilloscope or CONSULT-ll.
When the screen looks bluish
MTBL1533
When the screen looks reddish
MTBL1534
When the screen looks yellowish
MTBL1535
OK or NG
OK Replace the display unit.
NG Replace AV and NAVI control unit.
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NAVIGATION SYSTEM
Color of RGB Image Is Not Proper (Cont’d)
EL-481
Page 2818 of 3189
RGB Screen Is RollingNJEL0614
1 COLOR BAR DIAGNOSIS CHECK
1. Turn the ignition switch OFF.
2. Disconnect AV and NAVI control unit connector and Display connector.
3. Check continuity between AV and NAVI control unit and Display.
SKIA1422E
MTBL1536
4. Check continuity between AV and NAVI control unit and ground.
MTBL1537
OK or NG
OK GO TO 2.
NG Check harness for open or short between AV and NAVI control unit and Display for
open or short circuit.
Check connector housings for disconnected or loose terminals.
NAVIGATION SYSTEM
RGB Screen Is Rolling
EL-482
Page 2819 of 3189
2 RGB SYNCHRONIZING SIGNAL CHECK
1. Connect AV and NAVI control unit connector and Display connector.
2. Turn the ignition switch ON.
3. Check voltage between AV and NAVI control unit terminals 15 and 17.
SKIA1423E
15 (G)-17: EL-450 , “Terminals and Reference Value for AV and NAVI Control Unit”
OK or NG
OK Replace the display unit.
NG Replace AV and NAVI control unit.
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NAVIGATION SYSTEM
RGB Screen Is Rolling (Cont’d)
EL-483
Page 2820 of 3189
Guide Sound Is Not Heard=NJEL0615
1 CHECK VOICE GUIDE SETTING
While driving in the dark pink route, voice guide does not operate. (note)
Is volume setting not switched ON?
NOTE:
Voice guide is only available at intersections that satisfy certain conditions (indicated by on the map). Therefore, guid-
ance may not be given even when the route on the map changes direction.
YesorNo
Ye s G O T O 2 .
No Switch the setting ON and turn the volume up.
2 HARNESS CHECK
1. Turn the ignition switch OFF.
2. Disconnect AV and NAVI control unit connector and Audio unit connector.
3. Check continuity between AV and NAVI control unit and Audio unit.
YEL844D
MTBL1538
4. Check continuity between AV and NAVI control unit and ground.
MTBL1539
OK or NG
OK GO TO 3.
NG Repair harness.
Check connector housings for disconnected or loose terminals.
NAVIGATION SYSTEM
Guide Sound Is Not Heard
EL-484
Page 2821 of 3189
3 VOICE GUIDE CHECK
1. Connect AV and NAVI control unit connector and Audio unit connector.
2. Turn the ignition switch ON.
3. Check voltage signal between AV and NAVI control unit terminals 8 and 7.
SKIA1425E
MTBL1540
OK or NG
OK Replace Audio unit.
NG Replace AV and NAVI control unit.
Multifunction Switch Controls Are Ineffective
(Rear Defogger Control Excluded)
NJEL0616
1 CHECK POWER AND GROUND SYSTEMS
Check voltage between multifunction switch and ground. EL-469, “Check Display Unit, Multifunction Switch Power, and
Ground Circuit”.
OK or NG
OK GO TO 2.
NG Malfunction of multifunction switch ACC power or ground harness
2 CHECK SYMPTOM
Turn ignition switch to ACC position. Is screen changed to audio control screen when CD is inserted?
Switches. GO TO 3.
Does not switch. GO TO 5.
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NAVIGATION SYSTEM
Guide Sound Is Not Heard (Cont’d)
EL-485
Page 2822 of 3189
3 HARNESS CHECK
1. Turn the ignition switch OFF.
2. Disconnect multifunction switch connector and Audio unit connector.
3. Check continuity between multifunction switch and Audio unit.
YEL845D
MTBL1541
4. Check continuity between multifunction switch harness connector M97 terminals 11 (L), 13 (P) and ground.
Continuity should not exist.
OK or NG
OK GO TO 4.
NG Replace harness.
Check connector housings for disconnected or loose terminals.
4 COMMUNICATION SIGNAL INSPECTION
1. Connect multifunction switch and Audio unit connectors.
SKIA1427E
2. Check voltage signal between multifunction switch harness connector M97 terminals 11 (L), 13 (P) and ground.
11 (L), 13 (P) - ground:
EL-456, “Terminals and Reference Value for Multifunction Switch”
OK or NG
OK Replace audio unit.
NG Replace multifunction switch.
NAVIGATION SYSTEM
Multifunction Switch Controls Are Ineffective (Rear Defogger Control Excluded) (Cont’d)
EL-486
Page 2823 of 3189
5 HARNESS CHECK
1. Turn the ignition switch OFF.
SKIA1428E
2. Disconnect AV and NAVI control unit connector and Audio unit connector.
3. Check continuity between AV and NAVI control unit and Audio unit.
MTBL1542
4. Check continuity between terminals 47, 48 and 46.
SKIA1429E
MTBL1543
OK or NG
OK GO TO 6.
NG Replace harness.
Check connector housings for disconnected or loose terminals.
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NAVIGATION SYSTEM
Multifunction Switch Controls Are Ineffective (Rear Defogger Control Excluded) (Cont’d)
EL-487
Page 2824 of 3189
6 COMMUNICATION SIGNAL INSPECTION
1. Connect audio unit to AV and NAVI control unit connector.
SKIA1430E
2. Check voltage signal between AV and NAVI control unit terminals 47 (R), 48 (G) and ground.
47 (R), 48 (G)-ground:
EL-450, “Terminals and Reference Value for AV and NAVI Control Unit”
OK or NG
OK Replace audio unit.
NG Replace AV and NAVI control unit.
NAVIGATION SYSTEM
Multifunction Switch Controls Are Ineffective (Rear Defogger Control Excluded) (Cont’d)
EL-488