Infiniti G35 (V35). Manual — part 139
NAVIGATION SYSTEM
AV-71
C
D
E
F
G
H
I
J
L
M
A
B
AV
2.
CHECK REVERSE SIGNAL
1.
Shift the selector lever to R-position.
2.
Check voltage between NAVI control unit harness connector
and ground.
OK or NG
OK
>> Replace NAVI control unit.
NG
>> Harness for open or short between NAVI control unit and back-up lamp switch.
Navigation System Is Not Operated by NAVI Switch
NKS002G9
1.
CHECK POWER SUPPLY AND GROUND CIRCUIT (DISPLAY UNIT AND NAVI SWITCH)
Check power supply and ground circuit. Refer to
AV-67, "Power Supply and Ground Circuit Inspection for Dis-
.
OK or NG
OK
>> GO TO 2.
NG
>> Repair malfunctioning parts.
2.
CHECK HARNESS (BETWEEN NAVI SWITCH AND DISPLAY UNIT)
1.
Turn ignition switch OFF.
2.
Disconnect display unit connector and NAVI switch connector.
3.
Check continuity between display unit harness connector M35
terminals 16, 20 and NAVI switch harness connector M37 termi-
nals 5, 4.
4.
Check continuity between display unit harness connector M35
terminals 16, 20 and ground.
OK or NG
OK
>> GO TO 3.
NG
>> Repair harness or connector.
Terminals
Selector lever
position
Voltage (V)
(+)
(–)
Connector
Terminal
M58
65
Ground
R-position
Battery voltage
Other than
R-position
Approx. 0 V
SKIB7265E
16 – 5
: Continuity should exist.
20 – 4
: Continuity should exist.
16 – Ground
: Continuity should exist.
20 – Ground
: Continuity should exist.
PKIB3847E
AV-72
NAVIGATION SYSTEM
3.
CHECK HARNESS (BETWEEN DISPLAY UNIT AND NAVI CONTROL UNIT)
1.
Disconnect NAVI control unit connector and display unit connector.
2.
Check continuity between NAVI control unit harness connector
(A) M58 terminals 69, 70 and display unit harness connector (B)
M35 terminals 14, 13.
3.
Check continuity between NAVI control unit harness connector
(A) M58 terminals 69, 70 and ground.
OK or NG
OK
>> GO TO 4.
NG
>> Repair harness or connector.
4.
CHECK NAVI SWITCH
Replace with normal NAVI switch and recheck the symptom.
Is the function normal?
YES
>> Replace with normal NAVI switch.
NO
>> GO TO 5.
5.
CHECK DISPLAY UNIT
Replace with normal display unit and recheck the symptom.
Is the function normal?
YES
>> Replace with normal display unit.
NO
>> Replace NAVI control unit.
Screen Is Not Shown
NKS002GA
1.
CHECK DISPLAY UNIT
Check if brightness of screen changes when “
” switch on NAVI switch is turned on after turning on ignition
switch.
Does brightness of screen change?
YES
>> GO TO 3.
NO
>> GO TO 2.
2.
CHECK DISPLAY UNIT POWER SUPPLY AND GROUND CIRCUIT
Check display unit power supply and ground circuit. Refer to
AV-67, "Power Supply and Ground Circuit
Inspection for Display Unit and NAVI Switch"
OK or NG
OK
>> Replace display unit.
NG
>> Repair malfunctioning parts.
69 – 14
: Continuity should exist.
70 – 13
: Continuity should exist.
69 – Ground
: Continuity should exist.
70 – Ground
: Continuity should exist.
Continuity should not exist.
SKIB7267E
NAVIGATION SYSTEM
AV-73
C
D
E
F
G
H
I
J
L
M
A
B
AV
3.
CHECK NAVI CONTROL UNIT POWER SUPPLY AND GROUND CIRCUIT
Check NAVI control unit power supply and ground circuit. Refer to
AV-67, "Power Supply and Ground Circuit
Inspection for Display Unit and NAVI Switch"
OK or NG
OK
>> GO TO 4.
NG
>> Repair malfunctioning parts.
4.
CHECK RGB (YS) SIGNAL
1.
Turn ignition switch OFF.
2.
Disconnect NAVI control unit connector and display unit connector.
3.
Check continuity between NAVI control unit harness connector
(A) M58 terminal 50 and display unit harness connector (B) M35
terminal 8.
4.
Check continuity between NAVI control unit harness connector
(A) M58 terminal 50 and ground.
OK or NG
OK
>> GO TO 5.
NG
>> Repair harness or connector.
5.
CHECK RGB AREA SIGNAL
1.
Connect NAVI control unit connector and display unit connector.
2.
Turn ignition switch ON.
3.
Check signal between NAVI control unit harness connector M58
terminals 50 and 49 with CONSULT-II or oscilloscope.
OK or NG
OK
>> GO TO 6.
NG
>> Replace NAVI control unit.
6.
CHECK LIMIT SWITCH SIGNAL
1.
Turn ignition switch OFF.
2.
Disconnect NAVI control unit connector and up and down unit (Display unit).
3.
Check continuity between NAVI control unit harness connector
M57 terminal 22 and ground.
OK or NG
OK
>> GO TO 7.
NG
>> Repair harness or connector.
50 – 8
: Continuity should exist.
50 – Ground
: Continuity should not exist.
SKIB7268E
50 – Ground
: Approx. 5 V
SKIB7269E
22 – Ground
: Continuity should not exist.
SKIB7270E
AV-74
NAVIGATION SYSTEM
7.
CHECK NAVI CONTROL UNIT INPUT SIGNAL
1.
Connect NAVI control unit connector.
2.
Turn ignition switch ON.
3.
Check voltage between up-and-down unit (display unit) harness
connector M95 terminal 5 and ground.
OK or NG
OK
>> Replace display unit.
NG
>> Replace NAVI control unit.
Color of RGB Image Is Not Proper (Bluish)
NKS002GB
1.
CHECK RGB HARNESS
1.
Turn ignition switch OFF.
2.
Disconnect NAVI control unit connector and display unit connector.
3.
Check continuity between NAVI control unit harness connector
(A) M58 and display unit harness connector (B) M35.
4.
Check continuity between NAVI control unit harness connector
(A) M58 and ground.
–
When the screen looks bluish
OK or NG
OK
>> GO TO 2.
NG
>> Repair harness or connector.
5 – Ground
: Approx. 5 V
PKIB5160E
Terminals
Continuity
NAVI control unit
Display unit
Connector
Terminal
Connector
Terminal
M58
44
M35
1
Yes
47
4
Terminals
Continuity
NAVI control unit
Ground
Connector
Terminal
M58
44
No
47
SKIB7271E
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