matic j INFINITI QX56 2004 Factory Service Manual

AUTOMATIC DRIVE POSITIONER
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Revision: August 20072004 QX56
2. CHECK ADP STEERING WHEEL TILT SWITCH HARNESS CONTINUITY
1. Disconnect automatic drive positioner control unit connector and ADP steering wheel tilt switch.
2. Check continuity between automatic drive positioner control unit
connector M33 terminals 1, 17 and ADP steering wheel tilt
switch connector M16 terminals 2, 3.
3. Check continuity between automatic drive positioner control unit
connector M33 terminals 1, 17 and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
3. CHECK ADP STEERING WHEEL TILT SWITCH
Check continuity between ADP steering wheel tilt switch as follows.
OK or NG
OK >> GO TO 4.
NG >> Replace ADP steering wheel tilt switch.
4. CHECK ADP STEERING WHEEL TILT SWITCH GROUND CIRCUIT
Check continuity between ADP steering wheel tilt switch connector
M16 terminal 1 and ground.
OK or NG
OK >> Check the condition of the harness and connector.
NG >> Replace or replace harness.1 (W/G) - 2 (W/G) : Continuity should exist.
17 (G/B) - 3 (G/B) : Continuity should exist.
1 (W/G) - Ground : Continuity should not exist.
17 (G/B) - Ground : Continuity should not exist.
LIIA1434E
Te r m i n a l s
Condition Continuity
(+) (–)
2
1Tilt switch ON (UP operation) Yes
Other than above No
3Tilt switch ON (DOWN operation) Yes
Other than above No
LIIA1435E
1 (B) - Ground : Continuity should exist.
LIIA0490E

SE-84
AUTOMATIC DRIVE POSITIONER
Revision: August 20072004 QX56
Front Door Switch LH Circuit InspectionEIS0 02 ZA
1. CHECK FUNCTION
With CONSULT-II
Touch "BCM" with “DOOR SW DR” on the DATA MONITOR, check
ON/OFF operation when the front door is open and closed.
*:Refer to SE-40, "DATA MONITOR" .
Without CONSULT-II
GO TO 2.
OK or NG
OK >> Front door switch LH circuit is OK.
NG >> GO TO 2.
2. CHECK FRONT DOOR SWITCH LH
1. Turn ignition switch OFF.
2. Disconnect front door switch.
3. Check continuity between front door switch LH terminal 2 and ground.
OK or NG
OK >> GO TO 3.
NG >> Replace front door switch LH.
3. CHECK HARNESS CONTINUITY
1. Disconnect BCM.
2. Check continuity between BCM connector M19 terminal 47 and
front door switch LH connector B8 terminal 2.
3. Check continuity between BCM connector M19 terminal 47 and
ground.
OK or NG
OK >> Front door switch LH circuit is OK.
NG >> Repair or replace harness.
Monitor item [OPERA-
TION or UNIT]Contents
DOOR SW
DR*“ON/
OFF”Door open (ON)/door closed (OFF) status judged from
the front door switch is displayed.
PIIA0291E
Terminals
Condition Continuity
(+) (–)
2GroundWith the front door switch LH pressed No
With the front door switch LH released Yes
LIIA1493E
47 (SB) - 2 (SB) : Continuity should exist.
47 (SB) - Ground : Continuity should not exist.
LIIA1027E

AUTOMATIC DRIVE POSITIONER
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UART Communication Line Circuit InspectionEIS002ZB
1. CHECK UART LINE INPUT/OUTPUT SIGNAL 1
1. Turn ignition switch OFF.
2. Check signal between driver seat control unit connector and
ground, with oscilloscope.
OK or NG
OK >> GO TO 2.
NG >> Check the following.

When voltage wave form does not appear with a constant voltage (approx. 5V), replace driver
seat control unit.

When voltage wave form does not appear with a constant voltage (approx. 0V), replace auto-
matic driver seat control unit.
2. CHECK UART LINE INPUT/OUTPUT SIGNAL 2
Check signal between automatic drive positioner control unit con-
nector ground, with oscilloscope.
OK or NG
OK >> GO TO 3.
NG >> Check the following.

When voltage wave form does not appear with a constant voltage (approx. 5V), replace auto-
matic drive positioner control unit.

When voltage wave form does not appear with a constant voltage (approx. 0V), replace driver
seat control unit.
ConnectorTe r m i n a l s
(Wire color)
Condition Signal
(+) (–)
P2 17 (W) GroundPedal
adjusting
switch ON
(FOR-
WARD or
BACK-
WARD
operation)
PIIA4599E
PIIA4814E
ConnectorTe r m i n a l s
(Wire color)
Condition Signal
(+) (–)
M33 10 (L) GroundPedal
adjusting
switch ON
(FOR-
WARD or
BACK-
WARD
operation)
PIIA4816E
PIIA4813E

SE-86
AUTOMATIC DRIVE POSITIONER
Revision: August 20072004 QX56
3. CHECK UART LINE HARNESS
1. Disconnect driver seat control unit and automatic drive posi-
tioner control unit.
2. Check continuity between driver seat control unit connector P2
terminals 1, 17, and automatic drive positioner connector M33
terminals 10, 26.
3. Check continuity between driver seat control unit connector P2
terminals 1, 17 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness.
4. CHECK DRIVER SEAT CONTROL UNIT
Does the automatic drive positioner operate when the driver seat control unit is exchanged?
OK or NG
OK >> Replace driver seat control unit.
NG >> Replace automatic drive positioner control unit.1 (L) - 10 (L) : Continuity should exist.
17 (W) - 26 (W) : Continuity should exist.
1 (L) - Ground : Continuity should not exist.
17 (W) - Ground : Continuity should not exist.
PIIA4598E

AUTOMATIC DRIVE POSITIONER
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Removal and InstallationEIS0 02 Z C
Refer to ACC-2, "ACCELERATOR CONTROL SYSTEM" and BR-6, "BRAKE PEDAL" .

SE-90
HEATED SEAT
Revision: August 20072004 QX56
SchematicEIS002ZG
WIWA1107E

SRS-1
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
H RESTRAINTS
CONTENTS
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SECTION SRS
A
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SRS
Revision: August 20072004 QX56 PRECAUTIONS .......................................................... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 3
Precautions for SRS “AIR BAG” and “SEAT BELT
PRE-TENSIONER” Service ..................................... 3
Occupant Classification System Precaution ............ 3
Trouble Diagnosis Precaution .................................. 3
PREPARATION ........................................................... 4
Special Service Tools ............................................... 4
Commercial Service Tools ........................................ 4
SUPPLEMENTAL RESTRAINT SYSTEM (SRS) ....... 5
SRS Configuration ................................................... 5
Front Seat Belt Pre-tensioner with Load Limiter ...... 6
Front Side Air Bag .................................................... 6
Side Curtain Air Bag ................................................. 6
Occupant Classification System ............................... 6
Direct-connect SRS Component Connectors ........... 7
TROUBLE DIAGNOSIS .............................................. 8
Trouble Diagnosis Introduction ................................. 8
DIAGNOSIS FUNCTION ....................................... 8
HOW TO PERFORM TROUBLE DIAGNOSES
FOR QUICK AND ACCURATE REPAIR ............... 8
WORK FLOW ........................................................ 9
SRS Components Parts Location ........................... 10
Schematic ...............................................................11
Wiring Diagram — SRS — ..................................... 12
CONSULT-II Function (AIR BAG) ........................... 18
CONSULT-II Function ............................................ 18
HOW TO CHANGE SELF-DIAGNOSIS MODE
WITH CONSULT-II .............................................. 18
HOW TO ERASE SELF-DIAGNOSIS RESULTS ... 19
Self-Diagnosis Function (Without CONSULT-II) ..... 19
HOW TO CHANGE SELF-DIAGNOSIS MODE ... 19
HOW TO ERASE SELF-DIAGNOSIS RESULTS ... 20
SRS Operation Check ............................................ 20
DIAGNOSTIC PROCEDURE 1 ........................... 20
Trouble Diagnosis With CONSULT-II ..................... 22
DIAGNOSTIC PROCEDURE 2 ........................... 22
DIAGNOSTIC PROCEDURE 3 ........................... 28DIAGNOSTIC PROCEDURE 4 (CONTINUED
FROM DIAGNOSTIC PROCEDURE 2) .............. 30
DIAGNOSTIC PROCEDURE 5 ........................... 30
Trouble Diagnosis Without CONSULT-II ................. 37
DIAGNOSTIC PROCEDURE 6 ........................... 37
WARNING LAMP FLASH CODE CHART ........... 38
Trouble Diagnosis: “AIR BAG” Warning Lamp Does
Not Turn Off ............................................................ 43
DIAGNOSTIC PROCEDURE 6 ........................... 43
Trouble Diagnosis: “AIR BAG” Warning Lamp Does
Not Turn On ............................................................ 44
DIAGNOSTIC PROCEDURE 7 ........................... 44
DRIVER AIR BAG MODULE .................................... 45
Removal and Installation ........................................ 45
REMOVAL ........................................................... 45
INSTALLATION ................................................... 46
SPIRAL CABLE ........................................................ 47
Removal and Installation ........................................ 47
REMOVAL ........................................................... 47
INSTALLATION ................................................... 48
FRONT PASSENGER AIR BAG MODULE .............. 50
Removal and Installation ........................................ 50
REMOVAL ........................................................... 50
INSTALLATION ................................................... 50
WIRING HARNESS MODIFICATION .................. 51
SIDE CURTAIN AIR BAG MODULE ........................ 53
Removal and Installation ........................................ 53
REMOVAL ........................................................... 53
INSTALLATION ................................................... 53
CRASH ZONE SENSOR ........................................... 55
Removal and Installation ........................................ 55
REMOVAL ........................................................... 55
INSTALLATION ................................................... 55
SIDE AIR BAG (SATELLITE) SENSOR ................... 56
Removal and Installation ........................................ 56
REMOVAL ........................................................... 56
INSTALLATION ................................................... 56
FRONT SEAT BELT PRE-TENSIONER ................... 57
Removal and Installation ........................................ 57

TROUBLE DIAGNOSIS
SRS-11
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SRS
Revision: August 20072004 QX56
SchematicEHS000WC
WHWA0178E

SRS-18
TROUBLE DIAGNOSIS
Revision: August 20072004 QX56
CONSULT-II Function (AIR BAG)EHS001BB
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
CONSULT-II FunctionEHS000WE
HOW TO CHANGE SELF-DIAGNOSIS MODE WITH CONSULT-II
From User Mode to Diagnosis Mode
After selecting “AIR BAG” on the “SELECT SYSTEM” screen, User mode automatically changes to Diagnosis
mode.
From Diagnosis Mode to User Mode
To return to User mode from Diagnosis mode, touch “BACK” key of CONSULT-II until “SELECT SYSTEM”
appears, Diagnosis mode automatically changes to User mode.
AIR BAG diagnostic mode Description
SELF-DIAG [CURRENT]A current Self-diagnosis result (also indicated by the number of warning lamp flashes in the Diagnosis
mode) is displayed on the CONSULT-II screen in real time. This refers to a malfunctioning part requir-
ing repairs.
SELF-DIAG [PAST]Diagnosis results previously stored in the memory are displayed on the CONSULT-II screen. The
stored results will remain until memory erasing is executed.
TROUBLE DIAG RECORDWith TROUBLE DIAG RECORD, diagnosis results previously erased by a reset operation can be dis-
played on the CONSULT-II screen.
ECU DISCRIMINATED NO.The air bag diagnosis sensor unit for each vehicle
model is assigned with its own, individual classifi-
cation number. This number will be displayed on
the CONSULT-II screen, as shown. When replac-
ing the air bag diagnosis sensor unit, refer to the
part number for the compatibility. After installation,
replacement with a correct unit can be checked by
confirming this classification number on the CON-
SULT-II screen.
For INFINITI MODEL JA60, the air bag diagno-
sis sensor unit discriminated number assigned
is F615.
ARS3 66
SRS8 03
SRS8 04

ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
TF-41
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Revision: August 20072004 QX56
WORK SUPPORT
Purpose
When there is no problem with transfer and 4WD system, the following symptom in “AUTO” mode may be
claimed by a customer.

Vibration when accelerating on snow-covered or icy roads. (Note)
AUTO indicator lamp
(AUTO IND)OFFEngine at rest during 2WD-mode operation or system out
of order
ON 4WD shift switch in “4LO” or “4H” or “AUTO” position
LOCK indicator lamp
(LOCK IND)OFFEngine at rest and 4WD shift switch in “AUTO” position
during 2WD-mode operation or system out of order
ON 4WD shift switch in “4H” or “4LO” position
4LO indicator lamp
(4L IND)OFFEngine at rest and 4WD shift switch in “AUTO” position
during 2WD-mode operation or system out of order
ON 4WD shift switch in “4LO” position
Clutch force release limit
(CL/F RLS LIM)0.2, 0.3, 1.2 kgmIndicates the clutch force release setting applied using the
scan tool. 0.3 kgm is the default setting.
VDC operation switch
(VDC OPER SW)OFF VDC is not operating.
ON VDC is operating.
TCS operation switch
(TCS OPER SW)OFF TCS is not operating.
ON TCS is operating.
ATP indicator lamp
(ATP IND)OFF Normal operation.
ONDriver is attempting to shift into or out of 4L while the AT is
not in neutral.
Transfer case F speed
(T/F F SPEED)0.0 km/h (0.0 MPH) —
Automatic transmission R speed
(AT R SPEED)0.0 km/h (0.0 MPH) —
Automatic transmission gear position
(AT GEAR POSI)1,2,3,4 Displays actual AT gear position. Indicated items
(Screen terms for CONSULT-II, “DATA
MONITOR” mode)Display Conditions