INFINITI FX35 2005 Service Manual

AV-142
NAVIGATION SYSTEM
Revision: 2005 July 2005 FX
Power Supply and Ground Circuit Check for NAVI Control UnitAKS007J5
1. CHECK FUSE
Make sure the following fuses of the 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 PG-3,
"POWER SUPPLY ROUTING CIRCUIT" .
2. CHECK POWER SUPPLY CIRCUIT
Check voltage between connector terminals and ground as follows.
OK or NG
OK >> GO TO 3.
NG >> Check harness for open or short between NAVI control unit and fuse.
3. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect NAVI control unit connector.
3. Check continuity between the following NAVI control unit and ground.
OK or NG
OK >> INSPECTION END
NG >> Repair harness or connector.
Terminals Power source Fuse No.
Connector Terminal (Wire color)
B208 2 (Y), 3 (Y) Battery power 32
6 (LG) ACC power 6
Terminals Ignition switch position
(+) (–) OFF ACC ON
Connector Te r m i n a l
(Wire color)
B208 2 (Y), 3 (Y)
Ground Battery
voltage Battery
voltage Battery
voltage
6 (LG) 0 V Battery
voltage Battery
voltage
SKIA8932E
Terminals Ignition switch Continuity
Connector Terminal (Wire color) Ground OFF Yes
B208 1 (B), 4 (B)
SKIA4037E

NAVIGATION SYSTEM AV-143
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AV
Revision: 2005 July 2005 FX
Power Supply and Ground Circuit Check for Display Control UnitAKS007J6
1. CHECK FUSE
Make sure the following fuses of the display 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 PG-3,
"POWER SUPPLY ROUTING CIRCUIT" .
2. CHECK POWER SUPPLY CIRCUIT
Check voltage between connector terminals and ground as follows.
OK or NG
OK >> GO TO 3.
NG >> Check harness for open or short between display control unit and fuse.
3. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect display control unit connector.
3. Check continuity between the following display control unit and ground.
OK or NG
OK >> INSPECTION END
NG >> Repair harness or connector.
Terminals Power source Fuse No.
Connector Terminal (Wire color)
M75 1 (W/L) Battery power 32
10 (LG/R) ACC power 6
Terminals Ignition switch position
(+) (–) OFF ACC ON
Connector Terminal
(Wire color)
M75 1 (W/L)
Ground Battery
voltage Battery
voltage Battery
voltage
10 (LG/R) 0 V Battery
voltage Battery
voltage
SKIA8930E
Terminals Ignition switch Continuity
Cnnector Terminal (Wire color) Ground OFF Yes
M75 3 (B)
PKIA2855E

AV-144
NAVIGATION SYSTEM
Revision: 2005 July 2005 FX
Power Supply and Ground Circuit Check for DisplayAKS007J7
1. CHECK1: POWER SUPPLY CIRCUIT
1. Turn ignition switch ON.
2. Check voltage between display harness connector M63 termi- nals 2 (W/G), 3 (BR/W) and ground.
OK or NG
OK >> GO TO 3.
NG >> GO TO 2.
2. CHECK POWER SUPPLY CIRCUIT
Check voltage between display control unit harness connector M75
terminals 2 (W/G), 4 (BR/W) and ground.
1.
OK or NG
OK >> Repair harness or connector.
NG >> Replace display control unit.
3. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect display connector.
3. Check continuity between display and ground as follows.
OK or NG
OK >> INSPECTION END.
NG >> Repair harness or connector. Approx. 9 V
SKIA8934E
Approx. 9 V
SKIA8936E
Terminals Ignition switch Continuity
Cnnector Terminal (Wire color) Ground OFF Yes
M63 1 (B)
13 (P)
SKIB0318E

NAVIGATION SYSTEM AV-145
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AV
Revision: 2005 July 2005 FX
Power Supply and Ground Circuit Check for A/C and AV SwitchAKS007J8
1. CHECK FUSE
Make sure the following fuses of the A/C and AV switch 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 PG-3,
"POWER SUPPLY ROUTING CIRCUIT" .
2. CHECK POWER SUPPLY CIRCUIT
Check voltage between connector terminals and ground as follows.
OK or NG
OK >> GO TO 3.
NG >> Check harness for open or short between A/C and AV switch and fuse.
3. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect A/C and AV switch connector.
3. Check continuity between A/C and AV switch and ground as fol- lows.
OK or NG
OK >> INSPECTION END
NG >> Repair harness or connector.
Vehicle Speed Signal Check for NAVI Control UnitAKS007J9
1. VEHICLE SPEED OPERATION CHECK
Is speedmeter operated normally?
YES or NO
YES >> GO TO 2.
NO >> Check combination meter trouble diagnosis. Refer to DI-15, "
Trouble Diagnosis" .
Terminals
Power source Fuse No.
Connector Terminal (Wire color)
M64 1 (W/L) Battery power 32
2 (LG/R) ACC power 6
Terminals Ignition switch position
(+) (–) OFF ACC ON
Connector Te r m i n a l
(Wire color)
M64 1 (W/L)
Ground Battery
voltage Battery
voltage Battery
voltage
2 (LG/R) 0 V Battery
voltage Battery
voltage
SKIA8937E
Terminals Ignition switch Continuity
Connector Terminal (Wire color) Ground OFF Yes
M64 5 (B)
SKIA8938E

AV-146
NAVIGATION SYSTEM
Revision: 2005 July 2005 FX
2. CHECK HARNESS
1. Turn ignition switch OFF.
2. Disconnect NAVI control unit connector and unified meter and A/C amp. connector.
3. Check continuity between NAVI control unit harness connector B207 terminal 28 (GY) and unified meter and A/C amp. harness
connector M56 terminal 26 (R/G).
4. Check continuity between NAVI control unit harness connector B207 terminal 28 (GY) and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
3. CHECK VEHICLE SPEED SIGNAL
1. Connect NAVI control unit connector and unified meter and A/C amp. connector.
2. Start engine.
3. Drive vehicle at a constant speed.
4. Check signal between NAVI control unit harness connector B207 terminal 28 (GY) and ground with CONSULT-ll or oscillo-
scope.
OK or NG
OK >> Replace NAVI control unit.
NG >> Check combination meter system. Refer to DI-20, "
Vehicle Speed Signal Inspection" .
Vehicle Speed Signal Check for Display Control UnitAKS007JA
1. VEHICLE SPEED OPERATION CHECK
Is speedmeter operated normally?
YES or NO
YES >> GO TO 2.
NO >> Check combination meter trouble diagnosis. Refer to DI-15, "
Trouble Diagnosis" .
Continuity should exist.
Continuity should not exist.
PKIA2861E
28 (GY) - Ground : Refer to AV- 11 9 , "Terminals and
Reference Value for NAVI Control
Unit" .PKIB6610E

NAVIGATION SYSTEM AV-147
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AV
Revision: 2005 July 2005 FX
2. CHECK HARNESS
1. Turn ignition switch OFF.
2. Disconnect display control unit connector and unified meter and A/C amp. connector.
3. Check continuity between display control unit harness connector M75 terminal 16 (R/G) and unified meter and A/C amp. harness
connector M56 terminal 26 (R/G).
4. Check continuity between display control unit harness connector M75 terminal 16 (R/G) and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
3. CHECK VEHICLE SPEED SIGNAL
1. Connect display control unit connector and unified meter and A/ C amp. connector.
2. Start the engine.
3. Drive vehicle at a constant speed.
4. Check signal between display control unit harness connector M75 terminal 16 (R/G) and ground with CONSULT-ll or oscillo-
scope.
OK or NG
OK >> Replace display control unit.
NG >> Check unified meter and A/C amp. system. Refer to DI-20, "
Vehicle Speed Signal Inspection" .
Illumination Signal Check for NAVI Control UnitAKS00AUM
1. CHECK ILLUMINATION SIGNAL
Check voltage between NAVI control unit and ground.
OK or NG
OK >> Replace NAVI control unit.
NG >> Check harness for open or short between NAVI control unit and IPDM E/R. Continuity should exist.
Continuity should not exist.
PKIA2864E
16 (R/G) – Ground : Refer to AV- 1 2 1 , "Terminals and
Reference Value for Display Control
Unit" .PKIB6609E
Terminals
Condition Voltage
(+)
(–)
Connector Terminal
(Wire color)
B207 25 (R) Ground Lighting switch position
1st or 2nd position Approx. 12 V
Lighting switch OFF Approx. 0 V
SKIB0315E

AV-148
NAVIGATION SYSTEM
Revision: 2005 July 2005 FX
Illumination Signal Check for Display Control Unit AKS007JC
1. CHECK ILLUMINATION SIGNAL
Check voltage between display control unit and ground.
OK or NG
OK >> Replace display control unit.
NG >> Check harness for open or short between display control unit and IPDM E/R.
Ignition Signal Check for NAVI Control UnitAKS007JD
1. CHECK IGNITION SIGNAL
1. Turn ignition switch ON.
2. Check voltage between NAVI control unit harness connector B207 terminal 26 (G) and ground.
OK or NG
OK >> Replace NAVI control unit.
NG >> Check harness for open or short between NAVI control unit and fuse.
Ignition Signal Check for Display Control UnitAKS007JE
1. CHECK IGNITION SIGNAL
1. Turn ignition switch ON.
2. Check voltage between display control unit harness connector M75 terminal 12 (G/R) and ground.
OK or NG
OK >> Replace display control unit.
NG >> Check harness for open or short between display con-
trol unit and fuse.
Reverse Signal Check for NAVI Control UnitAKS007JF
1. CHECK REVERSE LAMP
1. Turn ignition switch ON.
2. Selector lever into R-position.
Does
“R” in the shift position indicator come on?
YES >> GO TO 2.
NO >> Check back-up lamp system. Refer to LT- 1 2 7 , "
BACK-UP LAMP" .
Terminals
Condition Voltage
(+)
(–)
Connector Te r m i n a l
(Wire color)
M75 14 (R/L) Ground Lighting switch position
1st or 2nd position Approx. 12 V
Lighting switch OFF Approx. 0 V
SKIB0316E
Battery voltage should exist.
SKIA8939E
Battery voltage should exist.
SKIA8940E

NAVIGATION SYSTEM AV-149
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AV
Revision: 2005 July 2005 FX
2. CHECK REVERSE SIGNAL
With the selector lever in R-position, check voltage between NAVI
control unit and ground.
OK or NG
OK >> Replace NAVI control unit.
NG >> Check harness for open or short between NAVI control unit and back-up lamp relay.
Reverse Signal Check for Display Control UnitAKS007JG
1. CHECK REVERSE LAMP
1. Turn ignition switch ON.
2. Selector lever into R-position.
Does
“R” in the shift position indicator come on?
YES >> GO TO 2.
NO >> Check back-up lamp system. Refer to LT- 1 2 7 , "
BACK-UP LAMP" .
2. CHECK REVERSE SIGNAL
With the selector lever in R-position, check voltage between display
control unit and ground.
OK or NG
OK >> Replace display control unit.
NG >> Check harness for open or short between display control unit and back-up lamp relay.
AV Communication Line Check (Between Display Control Unit and NAVI Control
Unit)
AKS007JH
1. CHECK POWER SUPPLY AND GROUND CIRCUIT
Check system of power supply and ground circuit NAVI control unit. Refer to AV- 1 4 2 , "
Power Supply and
Ground Circuit Check for NAVI Control Unit" .
OK or NG
OK >> GO TO 2.
NG >> Check the malfunctioning parts.
Terminals
Condition Voltage
(+)
(–)
Connector Terminal
(Wire color)
B207 27 (OR) Ground Select
lever R-position Approx. 12 V
Other than above Approx. 0 V
SKIA9498E
Terminals
Condition Voltage
(+)
(–)
Connector Te r m i n a l
(Wire color)
M75 6 (OR) Ground Select
lever R-position Approx. 12 V
Other than above Approx. 0 V
SKIA8942E

AV-150
NAVIGATION SYSTEM
Revision: 2005 July 2005 FX
2. CHECK HARNESS
1. Turn ignition switch OFF.
2. Disconnect NAVI control unit connector and display control unit connector.
3. Check continuity between NAVI control unit and display control unit.
4. Check continuity between NAVI control unit and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
3. SELF-DIAGNOSIS OF DCU
1. Replace same normal display control unit.
2. Connect NAVI control unit connector and display control unit connector.
3. Turn ignition switch ON.
4. Start self-diagnosis of DCU, and check the self-diagnosis result.
OK or NG
OK >> Replace display control unit.
NG >> Replace NAVI control unit.
Audio Communication Line Check (Between Display Control Unit and Audio
Unit)
AKS007JI
1. CHECK POWER SUPPLY AND GROUND CIRCUIT
Check power supply and ground circuit of audio unit. Refer to AV- 4 1 , "
Power Supply Circuit Inspection" .
OK or NG
OK >> GO TO 2.
NG >> Check the malfunctioning parts.
Terminals
Continuity
NAVI control unit Display control unit
Connector Terminal
(Wire color) ConnectorTe r m i n a l
(Wire color)
B207 44 (L)
M76 32 (BR)
Ye s
45 (P) 34 (Y)
Te r m i n a l s Continuity
NAVI control unit
Connector Terminal (Wire color) Terminal
B207 44 (L)
Ground No
45 (P)
PKIA2873E

NAVIGATION SYSTEM AV-151
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AV
Revision: 2005 July 2005 FX
2. CHECK HARNESS
1. Turn ignition switch OFF.
2. Disconnect audio unit connector and display control unit connector.
3. Check continuity between audio unit and display control unit.
4. Check continuity between display control unit and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
3. CHECK 1: AUDIO-TX COMMUNICATION SIGNAL
1. Connect display control unit connector.
2. Turn ignition switch ON.
3. Check voltage between display control unit harness connector M76 terminal 40 (LG) and ground.
OK or NG
OK >> GO TO 4.
NG >> Replace display control unit.
4. CHECK 2: AUDIO-RX COMMUNICATION SIGNAL
1. Turn ignition switch OFF.
2. Connect audio unit connector.
3. Turn ignition switch ON.
4. Check voltage between display control unit harness connector M76 terminal 42 (B/Y) and ground.
OK or NG
OK >> GO TO 5.
NG >> Replace audio unit.
Terminals
Continuity
Display control unit Audio unit
Connector Terminal
(Wire color) Connector Terminal
(Wire color)
M76 40 (LG)
M60 23 (LG)
Ye s
42 (B/Y) 21 (B/Y)
Te r m i n a l s Continuity
Display control unit
—
Connector Terminal (Wire color)
M76 40 (LG)
Ground No
42 (B/Y)
PKIA2875E
Approx. 3.5 V or more
PKIA2876E
Approx. 3.5 V or more
PKIA2877E