turn signal INFINITI QX4 2005 Factory Service Manual

RSU-16
TROUBLE DIAGNOSIS
Revision: October 20052005 QX56
Display Item List
X: Applicable
–: Not applicable
ACTIVE TEST
CAUTION:

Do not perform active test while driving.
Operation Procedure
1. Connect the CONSULT-II and CONSULT-II CONVERTER to the data link connector and start the engine.
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carries out CAN communication.
2. Touch "START (NISSAN BASED VHCL)" on the display screen.
3. Touch "AIR LEVELIZER".
If "AIR LEVELIZER" is not indicated, go to GI-39, "
CONSULT-II Data Link Connector (DLC) Circuit" .
4. Touch "ACTIVE TEST".
5. The "SELECT TEST ITEM" screen is displayed.
6. Touch necessary test item.
7. With the "MAIN SIGNALS" display highlighted, touch "START".
8. The active test screen will be displayed.
Display Item List
CAUTION:
The "COMPRESSOR" active test will remain ON until it is turned off using CONSULT-II. Allowing the
compressor to run for an extended period of time may cause damage to air suspension system com-
ponents due to excessive pressure in the air suspension system.
NOTE:

"TEST IS STOPPED" is displayed approximately 10 seconds after operation starts for all active test items
except "COMPRESSOR".

After "TEST IS STOPPED" is displayed, to perform test again, repeat Step 6.
Te s t I t e mData monitor item selection
ALL
SIGNALSSELECTION
FROM MENU
HEIGT SENXX
HEIGT CALCXX
SEN FIX TIMEXX
HEIGT INI VALXX
COMPRESSOR X X
EXH SOLENOID X X
ACG LXX
Test Item Description
COMPRESSOROFF/ON
EXHAUST SOLENOIDOFF/ON
WARNING LAMPOFF/ON

RSU-18
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
Revision: October 20052005 QX56
4. CHECK HEIGHT SENSOR POWER AND GROUND
1. Reconnect the suspension control unit connector.
2. Turn the ignition switch ON.
3. Check voltage between height sensor connector C8 terminal 1
(R) and ground.
4. Turn ignition switch OFF.
5. Check resistance between height sensor connector C8 terminal
3 (L) and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair the circuit.
5. CHECK HEIGHT SENSOR SIGNAL CIRCUIT
1. Disconnect the suspension control unit.
2. Check resistance between height sensor connector C8 terminal
2 (W) and suspension control unit connector B3 terminal 3 (W).
3. Check resistance between height sensor connector C8 terminal
2 (W) and ground.
OK or NG
OK >> Replace the height sensor. Refer to RSU-44, "HEIGHT
SENSOR" .
NG >> Repair the circuit.Voltage : Approx. 5V
WEIA0084E
Continuity should exist.
WEIA0085E
Continuity should exist.
WEIA0086E
Continuity should not exist.
WEIA0087E

TROUBLE DIAGNOSES FOR SYMPTOMS
RSU-23
C
D
F
G
H
I
J
K
L
MA
B
RSU
Revision: October 20052005 QX56
TROUBLE DIAGNOSES FOR SYMPTOMSPFP:99999
Load Leveling Rear Air Suspension System Does Not OperateEES001HD
1. CHECK WARNING LAMP ACTIVATION
Make sure warning lamp remains off while driving.
OK or NG
OK >> GO TO 2.
NG >> Carry out self-diagnosis. Refer to RSU-14, "
SELF-DIAGNOSIS" .
2. CHECK FUSES
Check that the following fuses are not blown.
OK or NG
OK >> GO TO 3.
NG >> If fuse is blown, be sure to eliminate cause of blown fuse before installing new fuse. Refer to PG-
4, "POWER SUPPLY ROUTING CIRCUIT" .
3. CHECK SUSPENSION CONTROL UNIT POWER AND GROUND
1. Turn the ignition switch ON.
2. Check voltage between suspension control unit connector B3
terminal 6 (G/R) and ground and between suspension control
unit connector B3 terminal 7 (W/L) and ground.
3. Check resistance between suspension control unit connector B3
terminal 16 (B) and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair the circuit.
Unit Terminals Signal name Fuse or Fusible Link
Suspension control unit6 Ignition switch ON or START 12 (10A)
7
Battery power29 (10A)
Compressor motor relay 5 g (30A)
Combination meter24 Ignition switch ON or START 14 (10A)
8 Battery power 19 (10A)
Voltage : Approx. 12V
WEIA0069E
Continuity should exist.
WEIA0070E

RSU-24
TROUBLE DIAGNOSES FOR SYMPTOMS
Revision: October 20052005 QX56
4. CHECK GENERATOR SIGNAL INPUT
1. Start the engine.
2. Check voltage between suspension control unit connector B3
terminal 15 (BR/W) and ground.
OK or NG
OK >> Replace the suspension control unit. Refer to RSU-46,
"CONTROL UNIT" .
NG >> Repair the circuit.
CK SUSP Indicator Lamp Stays On When Ignition Switch Is Turned OnEES001HE
1. CARRY OUT SELF-DIAGNOSIS
Carry out self-diagnosis. Refer to RSU-14, "
SELF-DIAGNOSIS" .
Are malfunctions detected in self-diagnosis?
YES >> Refer to RSU-16, "Display Item List" .
NO >> Refer to DI-30, "
WARNING LAMPS" . Voltage : Approx. 12V
WEIA0071E

SE-38
AUTOMATIC DRIVE POSITIONER
Revision: October 20052005 QX56
8. CHECK AUTOMATIC DRIVE POSITIONER CONTROL UNIT GROUND CIRCUIT
Check continuity between the automatic drive positioner control unit connector M34 terminals 40, 48 and
ground.
OK or NG
OK >> Automatic drive positioner control unit circuit is OK.
NG >> Repair or replace harness.
CONSULT-II Function (AUTO DRIVE POS.) EIS004XO
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
CONSULT-II INSPECTION PROCEDURE
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carry out CAN communication.
1. Turn ignition switch OFF.
2. Connect CONSULT-II and CONSULT-II CONVERTER to the
data link connector.
3. Turn ignition switch ON.40 (B/W) – Ground : Continuity should exist.
48 (B) – Ground : Continuity should exist.
PIIA4544E
AUTO DRIVE POS.
diagnostic modeDescription
WORK SUPPORTSupports inspections and adjustments. Commands are transmitted to the driver seat
control unit for setting the status suitable for required operation, input/output signals
are received from the driver seat control unit and received data is displayed.
SELF-DIAG RESULTS Displays driver seat control unit self-diagnosis results.
DATA MONITOR Displays driver seat control unit input/output data in real time.
CAN DIAG SUPPORT MNTR The result of transmit/receive diagnosis of CAN communication can be read.
ACTIVE TEST Operation of electrical loads can be checked by sending drive signal to them.
ECU PART NUMBER Driver seat control unit part number can be read.
BBIA0369E

SE-44
AUTOMATIC DRIVE POSITIONER
Revision: October 20052005 QX56
Sliding Motor Circuit InspectionEIS004XR
1. CHECK SEAT SLIDING MECHANISM
Check the following.

Operation malfunction caused by sliding rail deformation, pinched harness or other foreign materials

Operation malfunction caused by foreign materials adhered to the sliding motor LH or sliding rail connec-
tor rod

Operation malfunction and interference with other parts by poor installation
OK or NG
OK >> GO TO 2.
NG >> Repair or replace the malfunctioning part and check again.
2. CHECK FUNCTION
With CONSULT-II
Check operation with “SEAT SLIDE” in ACTIVE TEST.
Without CONSULT-II
GO TO 3.
OK or NG
OK >> Sliding motor circuit is OK.
NG >> GO TO 3.
3. CHECK SLIDING MOTOR CIRCUIT HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect driver seat control unit and sliding motor LH.
3. Check continuity between driver seat control unit connector P3
terminals 35, 42 and sliding motor connector P4 terminals 4, 6.
4. Check continuity between driver seat control unit connector P3
terminals 35, 42 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness.
Only door mirror system does not operate (only auto-
matic operation).1. Door mirror sensor power supply and ground circuit
inspectionSE-81
Only seat system does not operate (only manual opera-
tion).1. Power seat switch ground circuit inspectionSE-71
SymptomDiagnoses / service procedure Refer to
page
Test item Description
SEAT SLIDE The sliding motor is activated by receiving the drive signal.
PIIA0265E
35 (V/W) - 6 (V/W) : Continuity should exist.
42 (O/B) - 4 (O/B) : Continuity should exist.
35 (V/W) - Ground : Continuity should not exist.
42 (O/B) - Ground : Continuity should not exist.
LIIA0696E

SE-46
AUTOMATIC DRIVE POSITIONER
Revision: October 20052005 QX56
3. CHECK RECLINING MOTOR CIRCUIT HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect driver seat control unit and reclining motor LH.
3. Check continuity between driver seat control unit connector P3 terminals 36, 44 and reclining motor LH
connector P5 terminals 3, 4.
4. Check continuity between driver seat control unit connector P3
terminals 36, 44 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness.
4. CHECK DRIVER SEAT CONTROL UNIT OUTPUT SIGNAL
1. Connect the driver seat control unit and reclining motor LH.
2. Check voltage between driver seat control unit connector and
ground.
OK or NG
OK >> Replace reclining motor LH.
NG >> Replace driver seat control unit.
Lifting Motor (Front) Circuit InspectionEIS004XT
1. CHECK FRONT END SEAT LIFTING MECHANISM
Check the following.

Operation malfunction caused by lifter mechanism deformation, pinched harness or other foreign materi-
als

Operation malfunction caused by foreign materials adhered to the lifting motor (front) or lead screws

Operation malfunction and interference with other parts by installation
OK or NG
OK >> GO TO 2.
NG >> Repair or replace the malfunctioning part and check again.36 (Y/G) - 4 (Y/G) : Continuity should exist.
44 (Y/R) - 3 (Y/R) : Continuity should exist.
36 (Y/G) - Ground : Continuity should not exist.
44 (Y/R) - Ground : Continuity should not exist.
LIIA0697E
ConnectorTerminals
(Wire color)
ConditionVoltage (V)
(Approx.)
(+) (–)
P336 (Y/G)
GroundReclining switch ON
(FORWARD operation)Battery voltage
Other than above 0
44 (Y/R)Reclining switch ON
(BACKWARD operation)Battery voltage
Other than above 0
PIIA4802E

AUTOMATIC DRIVE POSITIONER
SE-47
C
D
E
F
G
H
J
K
L
MA
B
SE
Revision: October 20052005 QX56
2. CHECK FUNCTION
With CONSULT-II
Check operation with “SEAT LIFTER FR” in ACTIVE TEST.
Without CONSULT-II
GO TO 3.
OK or NG
OK >> Lifting motor (front) circuit is OK.
NG >> GO TO 3.
3. CHECK LIFTING MOTOR (FRONT) CIRCUIT HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect driver seat control unit and lifting motor (front).
3. Check continuity between driver seat control unit connector P3 terminals 37, 45 and lifting motor (front)
connector P6 terminals 4, 6.
4. Check continuity between driver seat control unit connector P3
terminals 37, 45 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness.
4. CHECK DRIVER SEAT CONTROL UNIT OUTPUT SIGNAL
1. Connect the driver seat control unit and lifting motor (front).
2. Check voltage between driver seat control unit connector and
ground.
OK or NG
OK >> Replace lifting motor (front).
NG >> Replace driver seat control unit.
Test item Description
SEAT
LIFTER FRThe lifting motor (front) is activated by receiving the drive signal.
PIIA0271E
37 (BR) - 6 (BR) : Continuity should exist.
45 (GR) - 4 (GR) : Continuity should exist.
37 (BR) - Ground : Continuity should not exist.
45 (GR) - Ground : Continuity should not exist.
LIIA0698E
ConnectorTe r m i n a l s
(Wire color)
ConditionVoltage (V)
(Approx.)
(+) (–)
P337 (BR)
GroundLifting switch (front) ON
(DOWN operation)Battery voltage
Other than above 0
45 (GR)Llifting switch (front) ON
(UP operation)Battery voltage
Other than above 0
PIIA4805E

SE-48
AUTOMATIC DRIVE POSITIONER
Revision: October 20052005 QX56
Lifting Motor (Rear) Circuit InspectionEIS004XU
1. CHECK REAR SEAT LIFTING MECHANISM
Check the following.

Operation malfunction caused by lifter mechanism deformation or pinched harness or other foreign mate-
rials

Operation malfunction caused by foreign materials adhered to the lifting motor (rear) or lead screws

Operation malfunction and interference with other parts by poor installation
OK or NG
OK >> GO TO 2.
NG >> Repair or replace the malfunctioning part and check again.
2. CHECK FUNCTION
With CONSULT-II
Check operation with “SEAT LIFTER RR” in ACTIVE TEST.
Without CONSULT-II
GO TO 3.
OK or NG
OK >> Lifting motor (rear) circuit is OK.
NG >> GO TO 3.
3. CHECK LIFTING MOTOR (REAR) CIRCUIT HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect driver seat control unit and lifting motor (rear).
3. Check continuity between driver seat control unit connector P3 terminals 38, 39 and lifting motor (rear)
connector P7 terminals 4, 6.
4. Check continuity between driver seat control unit P3 terminals
38, 39 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness.
Test item Description
SEAT LIFTER
RRThe lifting motor (rear) is activated by receiving the drive signal.
PIIA0274E
38 (B/W) - 6 (B/W) : Continuity should exist.
39 (Y) - 4 (Y) : Continuity should exist.
38 (B/W) - Ground : Continuity should not exist.
39 (Y) - Ground : Continuity should not exist.
LIIA0699E

SE-50
AUTOMATIC DRIVE POSITIONER
Revision: October 20052005 QX56
3. CHECK PEDAL ADJUSTING MOTOR CIRCUIT HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect automatic drive positioner control unit and pedal adjusting motor.
3. Check continuity between automatic drive positioner control unit connector M34 terminals 37, 45 and
pedal adjusting motor connector E109 terminals 1, 2.
4. Check continuity between automatic drive positioner control unit
connector M34 terminals 37, 45 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness.
4. CHECK AUTOMATIC DRIVE POSITIONER CONTROL UNIT OUTPUT SIGNAL
1. Connect the automatic drive positioner control unit and pedal adjusting motor.
2. Check voltage between automatic drive positioner control unit
connector and ground.
OK or NG
OK >> Replace pedal adjusting motor.
NG >> Replace automatic drive positioner control unit.
Mirror Motor LH Circuit CheckEIS004XW
1. CHECK DOOR MIRROR LH MECHANISM
Check the following items.
Operation malfunction caused by a foreign object caught in door mirror face edge.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace the malfunctioning parts, and check the symptom again.37 (G) - 1 (G) : Continuity should exist.
45 (R) - 2 (R) : Continuity should exist.
37 (G) - Ground : Continuity should not exist.
45 (R) - Ground : Continuity should not exist.
LIIA1755E
ConnectorTerminals
(Wire color)
ConditionVoltage (V)
(Approx.)
(+) (–)
M3437 (G)
GroundPedal adjusting switch
ON
(FORWARD operation)Battery voltage
Other than above 0
45 (R)Pedal adjusting switch
ON
(BACKWARD opera-
tion)Battery voltage
Other than above 0
PIIA4806E