Infiniti F50. Manual — part 328
VEHICLE INFORMATION AND INTEGRATED SWITCH SYSTEM /WITH NAVIGA-
TION SYSTEM
DI-155
C
D
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F
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A
B
DI
Multifunction Switch Self-Diagnosis Function
EKS006TV
It can check ON/OFF operation of each switch in the multifunction switch and diagnose the input signals to the
rear control switch (audio) and steering switch (audio).
STARTING THE SELF-DIAGNOSIS MODE
1.
Turn ignition switch from OFF to ACC.
2.
Within 10 seconds press and hold the function switches “1” and
“6 ”simultaneously for 5 seconds.
Then the self-diagnosis operates.
EXITING THE SELF-DIAGNOSIS MODE
●
Turn ignition switch OFF, or press and hold the function switches “1” and “6” simultaneously for 5 seconds.
Then the self-diagnosis ends.
DIAGNOSIS FUNCTION
●
It can illuminate all the indicators (LED) in the multifunction switch.
●
It can check for continuity of the switches by sounding the buzzer when the multifunction switch is
pressed.
●
It can check for continuity of harness between multifunction switch and rear control switch (audio), or
steering switch (audio).
NOTE:
When it check continuity of harness between multifunction switch and rear control switch (audio), rear
control cancel switch is OFF position.
Power Supply and Ground Circuit Check for AV and NAVI Control Unit
EKS006TY
Refer to
AV-92, "Power Supply and Ground Circuit Check"
SKIA0609E
DI-156
VEHICLE INFORMATION AND INTEGRATED SWITCH SYSTEM /WITH NAVIGA-
TION SYSTEM
Power Supply and Ground Circuit Inspection for Display
EKS006TZ
1.
CHECK FUSES
Check 15A fuse [No. 52, located in fuse, fusible link and relay block (J/B)] is blown.
OK or NG
OK
>> GO TO 2.
NG
>> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to
2.
CHECK POWER SUPPLY CIRCUIT
1.
Disconnect display connector.
2.
Check voltage between display harness connector M82 termi-
nals 19 (L/OR), 21 (SB), 23 (SB) and ground.
OK or NG
OK
>> GO TO 3.
NG
>> Check harness for open or short between display and fuse.
3.
CHECK GROUND CIRCUIT
Check continuity between display harness connector M82 terminal
22, 24 and ground.
OK or NG
OK
>> Inspection end.
NG
>> Repair harness or connector.
Terminals
Ignition switch position
(+)
(–)
OFF
ACC
ON
Connector
Terminal
(Wire color)
M82
19 (L/OR)
Ground
0V
Battery
voltage
Battery
voltage
21 (SB)
Ground
Battery
voltage
Battery
voltage
Battery
voltage
23 (SB)
Ground
Battery
voltage
Battery
voltage
Battery
voltage
SKIA0552E
Terminals
Continuity
(+)
(–)
Connector
Terminal
(Wire color)
M82
22 (B)
Ground
Yes
M82
24 (B)
Ground
Yes
SKIA0553E
VEHICLE INFORMATION AND INTEGRATED SWITCH SYSTEM /WITH NAVIGA-
TION SYSTEM
DI-157
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Power Supply and Ground Circuit Inspection for Multifunction Switch
EKS006U0
1.
CHECK POWER SUPPLY CIRCUIT
1.
Disconnect multifunction switch connector.
2.
Check voltage between multifunction switch harness connector
M83 terminal 1 (L/OR) and ground.
OK or NG
OK
>> GO TO 3.
NG
>> Check harness for open or short between multifunction switch and fuse.
2.
CHECK GROUND CIRCUIT
Check continuity between multifunction switch harness connector
M83 terminal 2 (B) and ground.
OK or NG
OK
>> Multifunction switch is OK.
NG
>> Repair harness or connector.
Terminals
Ignition switch position
(+)
(–)
OFF
ACC
ON
Connector
Terminal
(Wire color)
M83
1 (L/OR)
Ground
0V
Battery
voltage
Battery
voltage
SKIA0534E
Continuity should exist.
SKIA0535E
DI-158
VEHICLE INFORMATION AND INTEGRATED SWITCH SYSTEM /WITH NAVIGA-
TION SYSTEM
No Fuel Information Is Displayed/No Warning Message Is Displayed
EKS006U1
1.
CHECK HARNESS
1.
Turn the ignition switch OFF.
2.
Disconnect connectors of combination meter, BCM, and AV and NAVI control unit.
3.
Check continuity between AV and NAVI control unit and combination meter.
4.
Check continuity between AV and NAVI control unit and ground.
OK or NG
OK
>> GO TO 2.
NG
>> Repair harness.
2.
CHECK COMMUNICATION SIGNAL (AV–ME)
1.
Connect connectors of combination meter, BCM, and AV and NAVI control unit.
2.
Turn the ignition switch ON.
3.
Check the signal between AV and NAVI control unit harness
connector B29 terminal 33 (LG) and ground with CONSULT-ll or
oscilloscope.
OK or NG
OK
>> GO TO 3.
NG
>> Replace AV and NAVI control unit
3.
CHECK COMMUNICATION SIGNAL (ME–AV)
1.
Turn ignition switch to ON and display “VEHICLE ELECTRONIC SYSTEMS”screen.
2.
Check the signal between AV and NAVI control unit harness
connector B29 terminal 32(PU) and ground with CONSULT-ll or
oscilloscope.
OK or NG
OK
>> Replace AV and NAVI control unit.
NG
>> Replace combination meter,.
Terminals
Continuity
AV and NAVI control unit (+)
Combination meter (–)
Connector
Terminal
(Wire color)
Connector
Terminal
(Wire color)
B29
33 (LG)
M41
7 (LG)
YES
B29
32 (PU)
M41
6 (PU)
YES
Terminals
Continuity
AV and NAVI control unit (+)
(–)
Connector
Terminal
(Wire color)
B29
33 (LG)
Ground
NO
32 (PU)
SKIA3533E
33 (LG) – Ground
: Refer to
Reference Value for AV and NAVI
Control unit"
SKIA3534E
32 (PU) – Ground
: Refer to
Reference Value for AV and NAVI
Control unit"
SKIA3535E
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