turn signal INFINITI FX35 2005 Repair Manual

TROUBLE DIAGNOSIS ATC-71
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SYSTEM DESCRIPTION
Component Parts
Mode door control system components are:

Unified meter and A/C amp.

Mode door motor (LCU)

A/C LAN system (PBR built-in mode door motor, air mix door motor and intake door motor)

In-vehicle sensor

Ambient sensor

Sunload sensor

Intake sensor
System Operation
The unified meter and A/C amp. receives data from each of the sensors. The unified meter and A/C amp.
sends air mix door, mode door and intake door opening angle data to the air mix door motor LCU, mode door
motor LCU and intake door motor LCU.
The air mix door motor, mode door motor and intake door motor read their respective signals according to the
address signal. Opening angle indication signals received from the unified meter and A/C amp. and each of
the motor position sensors are compared by the LCUs in each door motor with the existing decision and open-
ing angles. Subsequently, HOT/COLD, DEF/VENT and FRESH/RECIRCULATION operation is selected. The
new selection data are returned to the unified meter and A/C amp.
RJIA1777E

ATC-74
TROUBLE DIAGNOSIS
Revision: 2005 July 2005 FX
SYSTEM DESCRIPTION
Component Parts
Air mix door control system components are:

Unified meter and A/C amp.

Air mix door motor (LCU)

A/C LAN system (PBR built-in mode door motor, air mix door motor and intake door motor)

In-vehicle sensor

Ambient sensor

Sunload sensor

Intake sensor
System Operation
The unified meter and A/C amp. receives data from each of the sensors. The unified meter and A/C amp.
sends air mix door, mode door and intake door motor opening angle data to the air mix door motor LCU, mode
door motor LCU and intake door motor LCU.
The air mix door motor, mode door motor and intake door motor read their respective signals according to the
address signal. Opening angle indication signals received from the unified meter and A/C amp. and each of
the motor position sensors are compared by the LCUs in each door motor with the existing decision and open-
ing angles. Subsequently, HOT/COLD, DEF/VENT and FRESH/RECIRCULATION operation is selected. The
new selection data are returned to the unified meter and A/C amp.
Air Mix Door Control Specification
RJIA1781E
RJIA1782E

TROUBLE DIAGNOSIS ATC-83
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Revision: 2005 July 2005 FX
4. CHECK UNIFIED METER AND A/C AMP. OUTPUT SIGNAL
1. Reconnect blower motor connector and unified meter and A/C amp. connector.
2. Turn ignition switch ON.
3. Change the fan speed from Lo to Hi, and check the duty ratios between blower motor harness connector M78 terminal 2 (G) and ground using an oscilloscope. Normal terminal 2 (G) drive signal duty ratios are
shown in the table below.
OK or NG
OK >> Replace blower motor after confirming the fan air flow does not change.
NG >> Replace unified meter and A/C amp.
COMPONENT INSPECTION
Blower Motor
Confirm smooth rotation of the blower motor.

Ensure that there are no foreign particles inside the blower unit.
RJIA2000E
RJIA2001E
RJIA0905E

TROUBLE DIAGNOSIS ATC-85
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SYSTEM DESCRIPTION
Unified meter and A/C amp. controls compressor operation by ambient temperature, intake air temperature
and signal from ECM.
Low Temperature Protection Control
Unified meter and A/C amp. will turn the compressor ON or OFF as determined by a signal detected by ambi-
ent sensor and intake sensor.
When ambient temperature is higher than −2 °C (28 °F), the compres-
sor turns ON. The compressor turns OFF when ambient temperature
is lower than −5 °C (23 °F).
When intake air temperature is higher than 1 °C (34 °F), the compres-
sor turns ON. The compressor turns OFF when intake air tempera-
ture is lower than −5°C (23 °F).
DIAGNOSIS PROCEDURE FOR MAGNET CLUTCH
SYMPTOM: Magnet clutch does not engage when A/C switch is ON.
RHA094GB
SJIA0267E
RJIA2003E

TROUBLE DIAGNOSIS ATC-87
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Revision: 2005 July 2005 FX
5. CHECK BCM INPUT (COMPRESSOR ON) SIGNAL
Check compressor ON/OFF signal. Refer to AT C - 4 0 , "
CONSULT-II
Function (BCM)" .
OK or NG
OK >> GO TO 8.
NG >> GO TO 6.
6. CHECK CIRCUIT CONTINUITY BETWEEN BCM AND UNIFIED METER AND A/C AMP.
1. Turn ignition switch OFF.
2. Disconnect BCM connector and unified meter and A/C amp. connector.
3. Check continuity between BCM harness connector M3 terminal 27 (R/Y) and unified meter and A/C amp. harness connector
M57 terminal 42 (R/Y).
OK or NG
OK >> GO TO 7.
NG >> Repair harness or connector.
7. CHECK VOLTAGE FOR UNIFIED METER AND A/C AMP. (COMPRESSOR ON SIGNAL)
1. Reconnect BCM connector and unified meter and A/C amp. connector.
2. Turn ignition switch ON.
3. Check voltage between unified meter and A/C amp. harness connector M57 terminal 42 (R/Y) and ground.
OK or NG
OK >> GO TO 8.
NG-1 >> If the voltage is approx. 5 V when A/C switch is ON: Replace unified meter and A/C amp.
NG-2 >> If the voltage is approx. 0 V when A/C switch is OFF: Replace BCM. A/C SW ON : AIR COND SW ON
A/C SW OFF : AIR COND SW OFF
R J I A 1111 E
27 – 42 : Continuity should exist.
RJIA2006E
Te r m i n a l s
Condition Voltage
(+)
( − )
Unified meter
and A/C amp.
connector Terminal
No.
(wire color)
M57 42 (R/Y) Ground A/C switch: ON
(Blower motor operates.) Approx. 0 V
OFF switch: ON
(A/C system: OFF) Approx. 5 V
RJIA2007E

ATC-88
TROUBLE DIAGNOSIS
Revision: 2005 July 2005 FX
8. CHECK REFRIGERANT PRESSURE SENSOR
WITH CONSULT-II
1. Start the engine.
2. Check voltage of refrigerant pressure sensor. Refer to EC-147, "
CONSULT-II Reference Value in Data
Monitor" (VQ35DE) or EC-838, "CONSULT-II Reference Value in Data Monitor" (VK45DE).
WITHOUT CONSULT-II
1. Start the engine.
2. Check voltage between ECM harness connector F101 terminal 70 (L/R) and ground.
OK or NG
OK >>
WITH CONSULT-II
GO TO 9.

WITHOUT CONSULT-II
GO TO 10.
NG >> Refer to EC-674, "
REFRIGERANT PRESSURE SENSOR" (VQ35DE) or EC-1364, "REFRIGER-
ANT PRESSURE SENSOR" (VK45DE).
9. CHECK BCM INPUT (FAN ON) SIGNAL
Check FAN ON/OFF signal. Refer to AT C - 4 0 , "
CONSULT-II Function
(BCM)" .
OK or NG
OK >> GO TO 12.
NG >> GO TO 10.
10. CHECK CIRCUIT CONTINUITY BETWEEN BCM AND UNIFIED METER AND A/C AMP.
1. Turn ignition switch OFF.
2. Disconnect BCM connector and unified meter and A/C amp. connector.
3. Check continuity between BCM harness connector M3 terminal 28 (BR/Y) and unified meter and A/C amp. harness connector
M57 terminal 57 (BR/Y).
OK or NG
OK >> GO TO 11.
NG >> Repair harness or connector.
Te r m i n a l s
Condition Voltage
(+)
( − )
ECM
connector Terminal No.
(wire color)
F101 70 (L/R) Ground A/C switch: ON
(Blower motor operates.) Approx. 1 - 4 V
PBIB1188E
FAN SW ON : FAN ON SIG ON
FAN SW OFF : FAN ON SIG OFF
R J I A 1111 E
28 – 57 : Continuity should exist.
RJIA2009E

TROUBLE DIAGNOSIS ATC-89
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11 . CHECK VOLTAGE FOR UNIFIED METER AND A/C AMP. (FAN ON SIGNAL)
1. Reconnect BCM connector and unified meter and A/C amp. connector.
2. Turn ignition switch ON.
3. Check voltage between unified meter and A/C amp. harness connector M57 terminal 57 (BR/Y) and ground.
OK or NG
OK >> GO TO 12.
NG-1 >> If the voltage is approx. 5 V when blower motor is ON: Replace unified meter and A/C amp.
NG-2 >> If the voltage is approx. 0 V when blower motor is OFF: Replace BCM. Refer to BCS-16,
"Removal and Installation of BCM" .
12. CHECK CAN COMMUNICATION
Check CAN communication. Refer to BCS-15, "
CAN Communication Inspection Using CONSULT-II (Self-
Diagnosis)" .

BCM – ECM

ECM – IPDM E/R

ECM – Unified meter and A/C amp.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace malfunctioning part(s).
Te r m i n a l s
Condition Voltage
(+)
(-)
Unified meter
and A/C amp. connector Terminal No.
(wire color)
M57 57 (BR/Y) Ground A/C switch: ON
(Blower motor operates.) Approx. 0 V
OFF switch: ON
(A/C system: OFF) Approx. 5 V
RJIA2010E

TROUBLE DIAGNOSIS ATC-99
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2. CHECK ECV CONTROL SIGNAL
1. Turn ignition switch OFF.
2. Reconnect compressor (ECV) connector.
3. Perform self-diagnosis. Refer to AT C - 5 3 , "
Self-diagnosis Func-
tion" .
4. Set in self-diagnosis STEP-4 (Code No. 45). Refer to AT C - 5 4 ,
"FUNCTION CONFIRMATION PROCEDURE" .
5. Confirm ECV control signal between unified meter and A/C amp. harness connector M57 terminal 45 (PU/W) and ground using
an oscilloscope.
OK or NG
OK >> Replace compressor.
NG >> GO TO 3.
3. CHECK CIRCUIT CONTINUITY BETWEEN ECV AND UNIFIED METER AND A/C AMP.
1. Turn ignition switch OFF.
2. Disconnect compressor (ECV) and unified meter and A/C amp. connector.
3. Check continuity between compressor (ECV) harness connector F6 terminal 3 (PU) and unified meter and A/C amp. harness
connector M57 terminal 45 (PU/W).
OK or NG
OK >> GO TO 4.
NG >> Repair harness or connector.
4. CHECK ECV
Check continuity between compressor (ECV) connector F6 terminals
2 and 3.
OK or NG
OK >> Replace unified meter and A/C amp.
NG >> Replace compressor.
RJIA2295E
RJIA1475E
3 – 45 : Continuity should exist.
RJIA2296E
2 – 3 : Continuity should exist.
RJIA2297E

AV-3
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Revision: 2005 July 2005 FX
HISTORY OF ERRORS ...................................
. 136
DIAGNOSIS BY HISTORY OF ERRORS ........ . 137
NAVIGATION ................................................... . 138
CAN Diag Support Monitor .................................. . 140
OPERATION PROCEDURE ............................ . 140
A/C and AV Switch Self-Diagnosis Function ....... . 141
DESCRIPTION ................................................. . 141
Power Supply and Ground Circuit Check for NAVI
Control Unit ......................................................... . 142
Power Supply and Ground Circuit Check for Display
Control Unit ......................................................... . 143
Power Supply and Ground Circuit Check for Display . 144
Power Supply and Ground Circuit Check for A/C and
AV Switch ............................................................ . 145
Vehicle Speed Signal Check for NAVI Control Unit . 145
Vehicle Speed Signal Check for Display Control Unit . 146
Illumination Signal Check for NAVI Control Unit .. . 147
Illumination Signal Check for Display Control Unit . 148
Ignition Signal Check for NAVI Control Unit ........ . 148
Ignition Signal Check for Display Control Unit .... . 148
Reverse Signal Check for NAVI Control Unit ...... . 148
Reverse Signal Check for Display Control Unit ... . 149
AV Communication Line Check (Between Display
Control Unit and NAVI Control Unit) .................... . 149
Audio Communication Line Check (Between Dis-
play Control Unit and Audio Unit) ........................ . 150
Display Communication Line Check (Between Dis-
play Control Unit and Display) ............................. . 152
AV Communication Line Check (Between Display
Control Unit and A/C and AV Switch) .................. . 154
CAN Communication Line Check ........................ . 155
If NAVI Control Unit Detects That DVD-ROM Map
Is Not Inserted ..................................................... . 155
If NAVI Control Unit Detects That Inserted DVD-
ROM Map Malfunctioning Or If It Is Impossible to
Load Data from DVD-ROM Map ......................... . 155
If Connection Between NAVI Control Unit and GPS
AntennaIs Malfunctioning .................................... . 156
RGB Screen Is Not Shown .................................. . 156
Color of RGB Image Is Not Proper (NAVI Screen
Looks Bluish) ....................................................... . 157
Color of RGB Image Is Not Proper (NAVI Screen
Looks Reddish) ................................................... . 158
Color of RGB Image Is Not Proper (NAVI Screen
Looks Yellowish) .................................................. . 159
Color of RGB Image Is Not Proper (All Screens
Looks Bluish) ....................................................... . 160
Color of RGB ImageIs Not Proper (All Screens
Looks Reddish) ................................................... . 161
Color of RGB Image Is Not Proper (All Screens
Looks Yellowish) .................................................. . 162
RGB Screen Is Rolling (NAVI Screen) ................ . 163
RGB Screen Is Rolling (Excepting NAVI Screen) . 164
Guide Sound Is Not Heard .................................. . 165
Screen Is Not Shown .......................................... . 166
Audio Screen Is Not Shown (NAVI Screen Is Shown) . 166
A/C Screen Is Not Shown (NAVI Screen Is Shown) . 166
TRIP, FUEL ECON and MAINTENANCE Screens
Are Not Shown .................................................... . 166 Average Fuel Economy Displayed Is Not Shown . 167
Driving Distance or Average Speed Displayed Is Not
Shown .................................................................. .167
WARNING DOOR OPEN Screen Is Not Shown .. .168
Tire Pressure Is Not Displayed ............................ .168
Unable to Operate All of A/C and AV Switch (Unable
to Start Self-Diagnosis) ........................................ .168
Navigation System Does Not Activate ................. .169
Position of Current-Location Mark Is Not Correct . 169
Driving Test .......................................................... .170
Example of Symptoms Judged Not Malfunction .. .171
BASIC OPERATION ......................................... .171
VEHICLE MARK ............................................... .171
DESTINATION, PASSING POINTS, AND MENU
ITEMS CANNOT BE SELECTED/SET ............. .172
VOICE GUIDE .................................................. .172
ROUTE SEARCH ............................................. .172
EXAMPLES OF CURRENT-LOCATION MARK
DISPLACEMENT ............................................. .174
CURRENT LOCATION MARK SHOWS A POSI-
TION WHICH IS COMPLETELY WRONG ....... .177
CURRENT-LOCATION MARK JUMPS ............ .177
CURRENT LOCATION MARK IS IN A RIVER OR
SEA .................................................................. .178
WHEN DRIVING ON SAME ROAD, SOME-
TIMES CURRENT-LOCATION MARK IS IN
RIGHT PLACE AND SOMETIMES IT IS WRONG
PLACE .............................................................. .178
LOCATION CORRECTION BY MAP-MATCH-
ING IS SLOW ................................................... .178
ALTHOUGH GPS RECEIVING DISPLAY IS
GREEN, VEHICLE MARK DOES NOT RETURN
TO CORRECT LOCATION ............................... .178
NAME OF CURRENT PLACE IS NOT DIS-
PLAYED ............................................................ .178
CONTENTS OF DISPLAY DIFFER FOR BIRD-
VIEW™ AND THE (FLAT) MAP SCREEN ....... .178
Program Loading of NAVI Control Unit ................ .179
Removal and Installation of NAVI Control Unit .... .180
REMOVAL ........................................................ .180
INSTALLATION ................................................ .180
Removal and Installation of GPS Antenna .......... .180
REMOVAL ........................................................ .180
INSTALLATION ................................................ .180
Removal and Installation of A/C and AV Switch .. .181
Removal and Installation of Display Unit ............. .181
Removal and Installation of Display Control Unit . 181 REMOVAL ........................................................ .181
INSTALLATION ................................................ .181
INFINITI MOBILE ENTERTAINMENT SYSTEM .... .182
System Description .............................................. .182
Component Parts and Harness Connector Location .183
Wiring Diagram – MES – ..................................... .184
Terminals and Reference Value for DVD Player .. .186
Terminals and Reference Value for DVD Display . 187
DVD Player Does Not Work ................................ .189
Screen Is Not Shown (While Sounds Come Out of
an Audio Speaker, Did Not Do of a Head Phone) .191
Screen Is not Shown (Sounds Come Out of Both

AV-36
AUDIO
Revision: 2005 July 2005 FX
Terminals and Reference Value for A/C and AV SwitchAKS00A2B
Terminal No.
(Wire color) Item Signal
input/
output Condition
Voltage Example of
symptom
+– Ignition
switch Operation
1 (W/L) Ground Battery power
supply Input OFF — Battery voltage System does not
work properly.
2 (LG/R) Ground ACC power
supply Input ACC — Battery voltage System does not
work properly.
3 (R/L) Ground Illumination
signal Input OFF Lighting switch is
ON (position 1). Approx. 12 V
A/C and AV
switch illumina-
tion does not
come on when
lighting switch is
ON (position 1).
Turn lighting switch
OFF. Approx. 0 V
4 (R/Y) Ground Illumination
control signal Output ON Illumination control
switch is operated
by lighting switch in 1st or 2nd position. Changes between approx.0 V
and approx.12 V Audio unit illumi-
nation can not be
controlled.
5 (B) Ground Ground — ON — Approx. 0 V —
6 (B/R) Ground Communica-
tion signal (+) Input/
Output ON — System does not
work properly.
7 — Shield — — — — —
8 (W/R) Ground Communica-
tion signal (–) Input/
Output ON —
System does not
work properly.
12 (R/G) Ground Steering SW
A Input ON Press MODE switch. Approx. 0 V
Steering wheel
audio controls do
not function
Press SEEK UP
switch. Approx. 1.7 V
Press VOL UP
switch. Approx. 3.3 V
Except for above Approx. 5 V
13 (G/W) Ground Steering SW
B Input ON Press POWER
switch. Approx. 0 V
Steering wheel
audio controls do
not function
Press SEEK DOWN
switch. Approx. 1.7 V
Press VOL DOWN
switch. Approx. 3.3 V
Except for above Approx. 5 V
14 (B/Y) — Steering SW
ground —— — — Steering wheel
audio controls do
not function.
SKIA0175E
SKIA0176E