2008 INFINITI FX35 turn signal

IP-14
< SERVICE INFORMATION >
INSTRUMENT PANEL ASSEMBLY
2. Remove data link connector.
3. Pull to disengage clip and pawl by removing panel in horizontal direction.
4. Disconnect in-vehicle sensor and each electrical parts.
5. Remove the grommet, and remove hood lock cable.
(L) Steering Column Front Lower Cover
1. Remove screw with power tool.
2. Disengage the tab, then remove steering column front lower cover.
NOTE:
 Move the steering column telescopic to the rear most position
 Move the steering column tilt to the top position.
(M) Steering Column Lower Cover
1. Remove screws with power tool.
2. Disengage the tab, then remove steering column lower cover.
(N) Steering Column Upper Cover
Remove the steering column upper cover.
(O) Wiper and Washer Switch
Remove wiper and washer switch.
Refer to WW-28, "
Removal and Installation of Front Wiper and Washer Switch".
(P) Lighting and Turn Signal Switch
Remove lighting and turn signal switch. Refer to LT-96, "Removal and Installation".
(Q) Steering Lock Escutcheon
Pull back to your side, and remove steering lock escutcheon.
(R) Combination Meter Assembly
1. Remove bolts with power tool, and then remove connector
bracket.
PIIA4998E
PIIA5002E
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TROUBLE DIAGNOSISLAN-7
< SERVICE INFORMATION > [CAN FUNDAMENTAL]
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TROUBLE DIAGNOSIS
Condition of Error DetectionINFOID:0000000001451948
“U1000” or “U1001” is indicated on SELF-DIAG RESULTS on CONSULT-III if CAN communication signal is
not transmitted or received between units for 2 seconds or more.
CAN COMMUNICATION SYSTEM ERROR
 CAN communication line open (CAN-H, CAN-L, or both)
 CAN communication line short (ground, betw een CAN communication lines, other harnesses)
 Error of CAN communication control circuit of the unit connected to CAN communication line
WHEN “U1000” OR “U1001” IS INDICATED EV EN THOUGH CAN COMMUNICATION SYSTEM IS
NORMAL
 Removal/installation of parts: Error may be detec ted when removing and installing CAN communication unit
and related parts while turning the ignition switch ON. (A DTC except for CAN communication may be
detected.)
 Fuse blown out (removed): CAN communication of the unit may cease.
 Voltage drop: Error may be detected if voltage drops due to discharged battery when turning the ignition
switch ON (Depending on the control unit which carries out CAN communication).
 Error may be detected if the power supply circuit of the control unit, which carries out CAN communication,
malfunctions (Depending on the control unit which carries out CAN communication).
 Error may be detected if reprogramming is not completed normally.
NOTE:
CAN communication system is normal if “U1000” or “U 1001” is indicated on SELF-DIAG RESULTS of CON-
SULT-III under the above conditions. Erase the memory of the self-diagnosis of each unit.
Symptom When Error Occurs in CAN Communication SystemINFOID:0000000001451949
In CAN communication system, multiple units mutually transmit and receive signals. Each unit cannot transmit
and receive signals if any error occurs on CAN communicati on line. Under this condition, multiple control units
related to the root cause malfunction or go into fail-safe mode.
ERROR EXAMPLE
NOTE:
 Each vehicle differs in symptom of each unit under fail-safe mode and CAN communication line wiring.
 Refer to LAN-37, "
Abbreviation List" for the unit abbreviation.
Example: TCM branch line open circuit
SKIB8738E
Unit name Symptom
ECM Engine torque limiting is affected, and shift harshness increases.
BCM Reverse warning chime does not sound.
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LAN-8
< SERVICE INFORMATION >[CAN FUNDAMENTAL]
TROUBLE DIAGNOSIS
Example: Data link connector branch line open circuit
NOTE:
 When data link connector branch line is open, transmission and reception of CAN communication signals
are not affected. Therefore, no symptoms occur. Ho wever, be sure to repair malfunctioning circuit.
 When data link connector branch line is open, “ECU list” displayed on the CONSULT-III “CAN DIAG SUP-
PORT MNTR” may be the same as when the CAN communication line has short-circuit. However, symp-
toms differ depending on the case. See below chart for the differences.
EPS control unit No rmal operation.
Combination meter  Shift position indicator and OD OFF indicator turn OFF.
 Warning lamps turn ON.
ABS actuator and electric unit (control unit) Normal operation.
TCM No impact on operation.
IPDM E/R Normal operation. Unit name Symptom
SKIB8739E
Unit name Symptom
ECM
Normal operation.
BCM
EPS control unit
Combination meter
ABS actuator and electric unit (control unit)
TCM
IPDM E/R
“ECU list” on the “CAN DIAG SUPPORT MNTR”(CONSULT-III) Difference of symptom
Data link connector branch line open circuit All Diag on CAN units are not
indicated.Normal operation.
CAN-H, CAN-L harness short-circuit Most of the units which are connected to the CAN
communication system enter fail-safe mode or are
deactivated.
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LAN-10
< SERVICE INFORMATION >[CAN FUNDAMENTAL]
TROUBLE DIAGNOSIS
Self-Diagnosis
INFOID:0000000001451950
CAN Diagnostic Support MonitorINFOID:0000000001451951
CONSULT-III and CAN diagnostic support monitor (on-boar d diagnosis function) are used for detecting root
cause.
MONITOR ITEM (CONSULT-III)
Unit name Symptom
ECM  Engine torque limiting is affected, and shift harshness increases.
 Engine speed drops.
BCM  Reverse warning chime does not sound.
 The front wiper moves under continuous operation mode even though the front
wiper switch being in the intermittent position.
 The room lamp does not turn ON.
 The engine does not start (if an error or malfunction occurs while turning the igni- tion switch OFF.)
 The steering lock does not release (if an error or malfunction occurs while turning the ignition switch OFF.)
EPS control unit The steeri ng effort increases.
Combination meter  The tachometer and the speedometer do not move.
 Warning lamps turn ON.
 Indicator lamps do not turn ON.
ABS actuator and electric unit (control unit) Normal operation.
TCM No impact on operation.
IPDM E/R When the ignition switch is ON,
 The headlamps (Lo) turn ON.
 The cooling fan continues to rotate.
DTC
Self-diagnosis item
(CONSULT-III indication) DTC detection condition Inspection/Action
U1000 CAN COMM CIRCUIT When ECM is not transmitting or receiving CAN
communication signal of OBD (emission-related
diagnosis) for 2 seconds or more.
Refer to LAN-13
.
When a control unit (except for ECM) is not
transmitting or receiving CAN communication
signal for 2 seconds or more.
U1001 CAN COMM CIRCUIT When ECM is not transmitting or receiving CAN
communication signal other than OBD (emis-
sion-related diagnosis) for 2 seconds or more.
U1002 SYSTEM COMM When a control unit is not transmitting or receiv-
ing CAN communication signal for 2 seconds or
less. Start the inspection. Re-
fer to the applicable sec-
tion of the indicated
control unit.
U1010 CONTROL UNIT [CAN] When an error is detected during the initial diag-
nosis for CAN controller of each control unit. Replace the control unit
indicating “U1010”.
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TROUBLE DIAGNOSES WORK FLOWLAN-31
< SERVICE INFORMATION > [CAN FUNDAMENTAL]
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b. Reception item of “ABS”: Assume that the unit could not receive the signal from ECM. Draw a line
between ABS and ECM (line 3-b in the figure below).
4. Search for the possible cause using CAN communicati on signal chart using information from the interview
with the customer.
NOTE:
For the details of CAN communication signal, refer to LAN-44, "
CAN Communication Signal Chart".
a. ABS warning lamp turned ON and speedometer did not move: This means that “ABS warning lamp signal”
and “Vehicle speed signal” could not communicate between M&A and ABS (4-a in the figure below).
PKID1223E
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LAN-32
< SERVICE INFORMATION >[CAN FUNDAMENTAL]
TROUBLE DIAGNOSES WORK FLOW
b. The tachometer moved normally: This means t
hat “Engine speed signal” could communicate normally
between ECM and M&A (4-b in the figure below).
5. Fill out the diagnosis sheet based on information from step 4.
a. The ABS warning lamp turned ON and speedometer did not move: Assume that a possible cause is no communication between M&A and ABS. Draw a line between M&A and ABS. (Line 5-a in the figure
below).
SKIB8895E
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TROUBLE DIAGNOSISLAN-39
< SERVICE INFORMATION > [CAN]
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TROUBLE DIAGNOSIS
CAN Diagnostic Support MonitorINFOID:0000000001328634
Use “CAN DIAG SUPPORT MNTR” for detecting the root cause.
MONITOR ITEM LIST (CONSULT-III)
ECM
0: Error at present, 1 – 39: Error in the past (Number m eans the number of times the ignition switch is turned OFF →ON)
*: 39 or higher number is fixed at 39 until the self-diagnosis result is erased.
AWD Control Unit
NOTE:
Replace the unit when “NG” is indicated on the “INITIAL DIAG”.
ICC Unit
NOTE:
Replace the unit when “NG” is indicated on the “INITIAL DIAG”.
ITEM CAN DIAG SUP-
PORT MNTR Description Normal Error
PRSNT PAST PRSNT PAST
ECM TRANSMIT DIAG Signal transmission status
OKOK
or
1 – 39
*UNKWN 0
VDC/TCS/ABS
Signal receiving status from the ABS actu-
ator and electric unit (control unit)
METER/M&A Signal receiving status from the unified
meter and A/C amp.
BCM/SEC Signal receiving status from the BCM
ICC Signal receiving status from the ICC unit
HVAC Not used even though indicated
TCM Signal receiving status from the TCM OK OK
or
1 – 39
*UNKWN 0
EPS Not used even though indicated
IPDM E/R Signal receiving status from the IPDM E/R OK OK
or
1 – 39
*UNKWN 0
e4WD Not used even though indicated
AWD/4WD Signal receiving status from the AWD con-
trol unit OKOK
or
1 – 39
*UNKWN 0
ITEM CAN DIAG SUP-
PORT MNTR DescriptionNormal Error
PRSNT
4WD INITIAL DIAG Status of CAN controller
OKNG
TRANSMIT DIAG Signal transmission status
UNKWN
VDC/TCS/ABS Signal receiving status from th
e ABS actuator and electric unit
(control unit)
ECM Signal receiving status from the ECM
TCM Not used even though indicated
METER/M&A Signal receiving status from the unified meter and A/C amp. OK UNKWN
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TROUBLE DIAGNOSISLAN-41
< SERVICE INFORMATION > [CAN]
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0: Error at present, 1 – 39: Error in the past (Number m eans the number of times the ignition switch is turned OFF →ON)
*: 39 or higher number is fixed at 39 until the self-diagnosis result is erased.
LDW Camera Unit
0: Error at present, 1 – 39: Error in the past (Number m eans the number of times the ignition switch is turned OFF →ON)
*: 39 or higher number is fixed at 39 until the self-diagnosis result is erased.
Unified Meter and A/C Amp.
0: Error at present, 1 – 39: Error in the past (Number m eans the number of times the ignition switch is turned OFF →ON)
*: 39 or higher number is fixed at 39 until the self-diagnosis result is erased.
ABS Actuator and Electric Unit (Control Unit)
ITEM CAN DIAG SUP-
PORT MNTR Description Normal Error
PRSNT PAST PRSNT PAST
I-KEY TRANSMIT DIAG Signal transmission status
OKOK
or
1 – 39
*UNKWN 0
ECM Signal receiving status from the ECM
METER/M&A
Signal receiving status from the unified
meter and A/C amp.
BCM/SEC Signal receiving status from the BCM
ITEM CAN DIAG SUP-
PORT MNTR Description Normal Error
PRSNT PAST PRSNT PAST
LKS TRANSMIT DIAG Not used even though indicated
ECM Signal receiving status from the ECM
OKOK
or
1 – 39
*UNKWN 0
VDC/TCS/ABS
Signal receiving status from the ABS actu-
ator and electric unit (control unit)
BCM/SEC Signal receiving status from the BCM
TCM Signal receiving status from the TCM
ITEM CAN DIAG SUP-
PORT MNTR Description Normal Error
PRSNT PAST PRSNT PAST
M&A TRANSMIT DIAG Signal transmission status
OKOK
or
1 – 39
*UNKWN 0
ECM Signal receiving status from the ECM
TCM Signal receiving status from the TCM
BCM/SEC Signal receiving status from the BCM
VDC/TCS/ABS
Signal receiving status from the ABS actu-
ator and electric unit (control unit)
IPDM E/R Not used even though indicated
DISPLAY Signal receiving status from the display
control unit
OKOK
or
1 – 39
*UNKWN 0
I-KEY Signal receiving status from the Intelligent
Key unit
EPS Not used even though indicated
AWD/4WD Signal receiving status from the AWD con-
trol unit OKOK
or
1 – 39
*UNKWN 0
e4WD Not used even though indicated
ICC Signal receiving status from the ICC unit OK OK
or
1 – 39
*UNKWN 0
LANE KEEP Not used even though indicated
TIRE-P
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