2006 INFINITI QX56 turn signal

RSU-24
TROUBLE DIAGNOSES FOR SYMPTOMS
Revision: November 20092006 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 AND FUSIBLE LINK
Check that the following fuses and fusible link are not blown.
OK or NG
OK >> GO TO 3.
NG >> If fuse or fusible link is blown, be sure to eliminate cause of malfunction before installing new fuse or fusible link. 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 and ground and between suspension control unit con-
nector B3 terminal 7 and ground.
3. Turn the ignition switch OFF.
4. Check continuity between suspension control unit connector B3 terminal 16 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair harness or connector.
Unit Terminals Signal nameFuse and fusible link No.
Suspension control unit 6
Ignition switch ON or START 12 (10A)
7 Battery power 29 (10A)
Compressor motor relay 5 g (30A)
Combination meter 24
Ignition switch ON or START 14 (10A)
8 Battery power 19 (10A)
Voltage: Approx. 12V
WEIA0069E
16 - Ground Continuity should exist.
WEIA0070E

TROUBLE DIAGNOSES FOR SYMPTOMSRSU-25
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Revision: November 2009 2006 QX56
4. CHECK GENERATOR SIGNAL INPUT
1. Start the engine.
2. Check voltage between suspension control unit connector B3 terminal 15 and ground.
OK or NG
OK >> Replace the suspension control unit. Refer to RSU-47,
"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-31, "
WARNING LAMPS" .
Voltage : Approx. 12V
WEIA0071E

SE-34
AUTOMATIC DRIVE POSITIONER
Revision: November 20092006 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 carries 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.
4. Touch “START (NISSAN BASED VHCL) ”.
40 - Ground
: Continuity should exist.
48 - Ground : Continuity should exist.
PIIA4544E
AUTO DRIVE POS.
diagnostic mode Description
WORK SUPPORT Supports 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
BCIA0029E

SE-40
AUTOMATIC DRIVE POSITIONER
Revision: November 20092006 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.
The Entry/Exiting does not operate when door is opened
and closed.
(The Entry/Exiting operates with key switch) 1. Front door switch circuit inspection
SE-79
2. If all the above systems are normal, replace the BCM.BCS-20
Door mirror system does not operate (only manual oper-
ation).1.Door mirror remote control switch ground circuit inspec-
tion
SE-72
Door mirror system does not operate (only automatic
operation).1. Door mirror sensor power supply and ground circuit
inspection
SE-75
Seat system does not operate (only manual operation). 1. Power seat switch ground circuit inspection
SE-66
SymptomDiagnoses / service procedure Refer to
page
Test item Description
SEAT SLIDE The sliding motor is activated by receiving the drive signal.
PIIA0265E
35 - 6 : Continuity should exist.
42 - 4 : Continuity should exist.
35 - Ground : Continuity should not exist.
42 - Ground : Continuity should not exist.
LIIA0696E

SE-42
AUTOMATIC DRIVE POSITIONER
Revision: November 20092006 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 - 4
: Continuity should exist.
44 - 3 : Continuity should exist.
36 - Ground : Continuity should not exist.
44 - Ground : Continuity should not exist.
LIIA0697E
ConnectorTerminals
ConditionVoltage (V)
(Approx.)
(+) (-)
P3 36
Ground Reclining switch ON
(FORWARD operation)
Battery voltage
Other than above 0
44 Reclining switch ON
(BACKWARD operation)
Battery voltage
Other than above 0
PIIA4802E

AUTOMATIC DRIVE POSITIONERSE-43
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Revision: November 2009 2006 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). Refer to SE-91, "FRONT SEAT" .
NG >> Replace driver seat control unit. Refer to SE-91, "
FRONT SEAT" .
Test itemDescription
SEAT LIFTER FR The lifting motor (front) is activated by receiving the drive
signal.
PIIA0271E
37 - 6
: Continuity should exist.
45 - 4 : Continuity should exist.
37 - Ground : Continuity should not exist.
45 - Ground : Continuity should not exist.
LIIA0698E
ConnectorTe r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (-)
P3 37
Ground Lifting switch (front) ON
(DOWN operation)
Battery voltage
Other than above 0
45 Llifting switch (front) ON
(UP operation)
Battery voltage
Other than above 0
PIIA4805E

SE-44
AUTOMATIC DRIVE POSITIONER
Revision: November 20092006 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 RR The lifting motor (rear) is activated by receiving the drive
signal.
PIIA0274E
38 - 6
: Continuity should exist.
39 - 4 : Continuity should exist.
38 - Ground : Continuity should not exist.
39 - Ground : Continuity should not exist.
LIIA0699E

SE-46
AUTOMATIC DRIVE POSITIONER
Revision: November 20092006 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 con-
nector 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 - 1
: Continuity should exist.
45 - 2 : Continuity should exist.
37 - Ground : Continuity should not exist.
45 - Ground : Continuity should not exist.
LIIA1755E
ConnectorTe r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (-)
M34 37
Ground Pedal adjusting switch
ON
(FORWARD operation)
Battery voltage
Other than above 0
45 Pedal adjusting switch
ON
(BACKWARD opera-
tion)
Battery voltage
Other than above 0
PIIA4806E