engine INFINITI QX56 2006 Factory User Guide

ACS-28
[ICC]
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
Revision: November 20092006 QX56
SELF-DIAGNOSTIC RESULTS
For details, refer to ACS-36, "Diagnostic Trouble Code (DTC) Chart" .
DATA MONITOR
Operation Procedure
1. Touch “DATA MONITOR ” on "SELECT DIAG MODE" screen.
2. Touch “ECU INPUT SIGNALS ”, “MAIN SIGNALS “, or “SELEC-
TION FROM MENU ” on "SELECT MONITOR ITEM" screen.
Monitored Item
×: Applicable
BCIA0031E
WDIA0084E
Monitored Item [unit] MAIN SIGNALS ECU
INPUT
SIGNALS SELECTION
FROM MENU Description
VHCL SPEED SE
[km/h] or [mph] ××× Indicates vehicle speed calculated from
wheel speed sensor signal.
SET VHCL SPD
[km/h] or [mph] ×× Indicates set vehicle speed stored in ICC
unit.
THRTL OPENING
[%] ×××
Indicates throttle angle calculated from sig-
nal voltage of throttle position sensor.
ENGINE RPM
[rpm] ××Indicates engine speed read by ICC unit via
CAN communication (ECM transmits
engine speed via CAN communication).
DISTANCE ADJ
[SHOR/MID/LONG] ×××
Indicates set distance stored in ICC unit.
WIPER SW
[OFF/LOW/HIGH] ××Indicates wiper [OFF/LOW/HIGH] status.
MAIN SW
[ON/OFF] ××× Indicates [ON/OFF] status as judged from
control switch signal.
SET/COAST SW
[ON/OFF] ×××
Indicates [ON/OFF] status as judged from
control switch signal.
CANCEL SW
[ON/OFF] ××× Indicates [ON/OFF] status as judged from
control switch signal.
RESUME/ACC SW
[ON/OFF] ××× Indicates [ON/OFF] status as judged from
control switch signal.
CRUISE OPE
[ON/OFF] ××
Indicates whether vehicle speed is being
controlled or not (ON means “
controlling”).

TROUBLE DIAGNOSIS — GENERAL DESCRIPTIONACS-31
[ICC]
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ACS
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METER LAMP

Start engine.

Touch “ON” and “OFF” to check that ICC system displays operate as required.

The following ICC lamps will illuminate at the same time,
CRUISE (orange), CRUISE (green), SET and ICC digital dis-
play.
STOP LAMP

Touch “ON” and “OFF” to check that the stop lamps operate as
in the following chart.
BOOSTER SOL/V 3

Touch any of “MODE 1”, “MODE 2”, “MODE 3” to check that fol-
lowing operation condition is caused by operating monitor and
brake pedal.

“START ” is displayed 10 seconds after operation start. (Active
test is completed.)
Self-Diagnostic FunctionEKS00BLY
WITH CONSULT-II
1. Go to operation check after asking the customer for symptom information. Refer to ACS-9, "ACTION
TEST" .
2. Stop vehicle, turn ignition switch OFF, then connect CONSULT-II and CONSULT-II CONVERTER to data link connector.
METER LAMP ONOFF
All ICC system dis-
plays Full illumination
OFF
SKIA1231E
STOP LAMP ONOFF
Stop lamp Lamp ONLamp OFF
SKIA1232E
SKIA1233E
PKIA0363J

ACS-32
[ICC]
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
Revision: November 20092006 QX56
3. With engine started, touch “START”, “ICC ”, “SELF-DIAG RESULTS ” on CONSULT-II screen in this order.
CAUTION:
If “ICC” cannot be shown after several attempts, the ICC unit may be malfunctioning and should
be replaced. Refer to ACS-59, "
ICC Unit" .
4. Self-diagnostic result appears on screen. If “NO DTC ···” is shown, check ICC warning lamp. If any mal-
function is indicated, GO TO step 5.
5. Refer to ACS-36, "
Diagnostic Trouble Code (DTC) Chart" , perform appropriate check, and repair or
replace malfunctioning part as necessary.
6. Turn ignition switch OFF.
7. Start engine and touch “START ”, “ICC ”, “SELF-DIAG RESULTS ”, and “ERASE ” on CONSULT-II.
CAUTION:
DTC of an existing malfunction will not erase. If the memory does not erase, GO TO step 5.
8. Perform ICC system running test (drive vehicle with ICC system ON), and make sure that ICC warning lamp does not illuminate.
WITHOUT CONSULT-II
1. Go to operation check after asking the customer for symptom information. Refer to ACS-9, "ACTION
TEST" .
2. Stop the vehicle to start the self-diagnosis.
3. Turn ignition switch OFF.
4. Turn ignition switch ON, and wait 5 seconds. Press ACCEL/RES switch 5 times, and then press COAST/SET switch 5 times all
within 5 seconds to start self-diagnosis.
CAUTION:

Do not start the engine.

Do not press the ICC ON/OFF switch ON.

When operation above is not completed within the 5 to 10
second window, DTC will not be displayed.

If self-diagnosis mode cannot be started after several
attempts, the ICC unit may be malfunctioning and should be
replaced. Refer to ACS-33, "
SELF-DIAGNOSIS BY ICC SYS-
TEM DISPLAY WILL NOT RUN" .
5. When self-diagnosis mode is started, DTCs are shown on set vehicle speed indicator.
CAUTION:

DTC will disappear after 5 minutes.
WKIA1921E
WKIA1922E

ACS-56
[ICC]
TROUBLE DIAGNOSIS FOR SYMPTOMS
Revision: November 20092006 QX56
2. CAN COMMUNICATION INSPECTION
With CONSULT-II
1. With CONSULT-II self-diagnosis, check “CAN COMM CIRCUIT”.
OK or NG
OK >> Refer to ACS-38, "DTC 20 CAN COMM CIRCUIT" .
NG >> Replace combination meter. Refer to IP-13, "
COMBINATION METER" . Erase DTC and perform
ICC system running test. Refer to ACS-9, "
ICC System Running Test" . Then perform self-diagno-
sis of ICC system again.
Symptom 6: Driving Force Is HuntingEKS00BMP
1. CHECK ECM
1. Perform self-diagnosis of ECM.
OK or NG
OK >> Refer to ACS-56, "Symptom 7: The ICC System Frequently Cannot Detect the Vehicle Ahead/The
Detection Zone is Short" .
NG >> Repair as necessary. Erase DTC and perform ICC system running test. Refer to ACS-9, "
ICC
System Running Test" . Then perform self-diagnosis of ICC system again.
Symptom 7: The ICC System Frequently Cannot Detect the Vehicle Ahead/The
Detection Zone is Short
EKS00BMQ
The detection function may become disrupted in the following cases:

When the reflector of the vehicle ahead is small or not clean enough to reflect the laser.

When driving a road with extremely sharp corners.

When the laser cannot detect the reflector of the vehicle ahead as the vehicle ahead is passing a hill or
passing the peak.
1. VISUAL CHECK
1. Check ICC sensor body window for contamination and foreign materials.
OK or NG
OK >> If any contamination or foreign materials are found, remove them. Then perform ICC system run- ning test. Refer to ACS-9, "
ICC System Running Test" .
NG >> GO TO 2.
2. CHECK FUNCTION
1. After performing laser beam aiming adjustment, perform ICC system running test. Refer to ACS-9, "
ICC
System Running Test" . Check that preceding vehicle detection performance has been improved.
OK or NG
OK >> Inspection End.
NG >>

Replace ICC sensor and perform laser beam aiming adjustment. Refer to ACS-59, "ICC Sen-
sor" .

Perform ICC system running test. Refer to ACS-9, "ICC System Running Test" . Then perform
self-diagnosis of ICC system again.
Symptom 8: The System Does Not Detect the Vehicle Ahead at AllEKS00BMR
1. VISUAL CHECK
1. With ignition switch turned ON (engine not started), check that all indicator lamps in ICC system display are continuously lit. (Check for a missing segment in preceding vehicle detection display.)
OK or NG
OK >> GO TO 2.
NG >> Check combination meter. Refer to DI-17, "
How to Proceed With Trouble Diagnosis" .

AT-1
AUTOMATIC TRANSMISSION
C TRANSMISSION/TRANSAXLE
CONTENTS
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INDEX FOR DTC ...................................................
..... 5
Alphabetical Index ............................................... ..... 5
DTC No. Index .................................................... ..... 6
PRECAUTIONS ..................................................... ..... 7
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ............................................................. ..... 7
Precautions for On Board Diagnostic (OBD) System
of A/T and Engine .................................................... 7
Precautions ......................................................... ..... 8
Service Notice or Precautions ............................. ..... 9
PREPARATION ...................................................... ... 10
Special Service Tools .......................................... ... 10
Commercial Service Tools ................................... .... 11
A/T FLUID .............................................................. ... 12
Changing Automatic Transmission Fluid (ATF) ... ... 12
Checking Automatic Transmission Fluid (ATF) ... ... 12
A/T Fluid Cooler Cleaning ................................... ... 14
A/T CONTROL SYSTEM ....................................... ... 17
Cross-Sectional View (2WD models) .................. ... 17
Cross-Sectional View (4WD models) .................. ... 18
Shift Mechanism .................................................. ... 19
TCM Function ...................................................... ... 30
CAN Communication ........................................... ... 31
Input/Output Signal of TCM ................................. ... 31
Line Pressure Control ......................................... ... 32
Shift Control ........................................................ ... 33
Lock-up Control ................................................... ... 34
Engine Brake Control .......................................... ... 36
Control Valve ....................................................... ... 36
ON BOARD DIAGNOSTIC (OBD) SYSTEM ......... ... 38
Introduction ......................................................... ... 38
OBD-II Function for A/T System .......................... ... 38
One or Two Trip Detection Logic of OBD-II ......... ... 38
OBD-II Diagnostic Trouble Code (DTC) .............. ... 38
Malfunction Indicator Lamp (MIL) ........................ ... 41
TROUBLE DIAGNOSIS ......................................... ... 42
DTC Inspection Priority Chart ............................. ... 42
Fail-Safe .............................................................. ... 42
How To Perform Trouble Diagnosis For Quick and Accurate Repair ...................................................
... 44
A/T Electrical Parts Location ............................... ... 49
Circuit Diagram ....................................................... 50
Inspections Before Trouble Diagnosis ................. ... 51
Check Before Engine is Started ........................... ... 55
Check at Idle ........................................................... 55
Cruise Test - Part 1 .............................................. ... 56
Cruise Test - Part 2 .............................................. ... 58
Cruise Test - Part 3 .............................................. ... 59
Vehicle Speed When Shifting Gears ................... ... 60
Vehicle Speed When Performing and Releasing
Complete Lock-up .................................................. 60
Vehicle Speed When Performing and Releasing
Slip Lock-up ............................................................ 60
Symptom Chart ....................................................... 61
TCM Input/Output Signal Reference Values ........ ... 83
CONSULT-II Function (A/T) ................................. ... 84
DTC U1000 CAN COMMUNICATION LINE ........... ... 96
Description ........................................................... ... 96
On Board Diagnosis Logic ................................... ... 96
Possible Cause ....................................................... 96
DTC Confirmation Procedure .............................. ... 96
Wiring Diagram — AT — CAN ............................. ... 97
Diagnostic Procedure .......................................... ... 99
DTC P0615 START SIGNAL CIRCUIT .................. .100
Description ........................................................... .100
CONSULT-II Reference Value ............................. .100
On Board Diagnosis Logic ................................... .100
Possible Cause .................................................... .100
DTC Confirmation Procedure .............................. .100
Wiring Diagram — AT — STSIG ......................... .101
Diagnostic Procedure .......................................... .102
DTC P0700 TCM .................................................... .104
Description ........................................................... .104
On Board Diagnosis Logic ................................... .104
Possible Cause .................................................... .104
DTC Confirmation Procedure .............................. .104
Diagnostic Procedure .......................................... .104
DTC P0705 PARK/NEUTRAL POSITION SWITCH .105
Description ........................................................... .105

AT-2Revision: November 20092006 QX56
CONSULT-II Reference Value .............................
.105
On Board Diagnosis Logic ................................... .105
Possible Cause .................................................... .105
DTC Confirmation Procedure .............................. .105
Wiring Diagram — AT — PNP/SW ...................... .106
Diagnostic Procedure .......................................... .107
DTC P0717 TURBINE REVOLUTION SENSOR ... .109
Description ........................................................... .109
CONSULT-II Reference Value ............................. .109
On Board Diagnosis Logic ................................... .109
Possible Cause .................................................... .109
DTC Confirmation Procedure .............................. .109
Diagnostic Procedure .......................................... .110
DTC P0720 VEHICLE SPEED SENSOR A/T (REV-
OLUTION SENSOR) .............................................. . 111
Description ........................................................... ..111
CONSULT-II Reference Value ...............................111
On Board Diagnosis Logic ................................... ..111
Possible Cause ......................................................111
DTC Confirmation Procedure .............................. ..111
Wiring Diagram — AT — VSSA/T ........................ .113
Diagnostic Procedure .......................................... .114
DTC P0725 ENGINE SPEED SIGNAL .................. .116
Description ........................................................... .116
CONSULT-II Reference Value ............................. .116
On Board Diagnosis Logic ................................... .116
Possible Cause .................................................... .116
DTC Confirmation Procedure .............................. .116
Diagnostic Procedure .......................................... .116
DTC P0740 TORQUE CONVERTER CLUTCH
SOLENOID VALVE ................................................ .118
Description ........................................................... .118
CONSULT-II Reference Value ............................. .118
On Board Diagnosis Logic ................................... .118
Possible Cause .................................................... .118
DTC Confirmation Procedure .............................. .118
Diagnostic Procedure .......................................... .119
DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP) .120
Description ........................................................... .120
CONSULT-II Reference Value ............................. .120
On Board Diagnosis Logic ................................... .120
Possible Cause .................................................... .120
DTC Confirmation Procedure .............................. .120
Diagnostic Procedure .......................................... .121
DTC P0745 LINE PRESSURE SOLENOID VALVE .122
Description ........................................................... .122
CONSULT-II Reference Value ............................. .122
On Board Diagnosis Logic ................................... .122
Possible Cause .................................................... .122
DTC Confirmation Procedure .............................. .122
Diagnostic Procedure .......................................... .123
DTC P1705 THROTTLE POSITION SENSOR ...... .124
Description ........................................................... .124
CONSULT-II Reference Value ............................. .124
On Board Diagnosis Logic ................................... .124
Possible Cause .................................................... .124
DTC Confirmation Procedure .............................. .124
Diagnostic Procedure .......................................... .124
DTC P1710 A/T FLUID TEMPERATURE SENSOR CIRCUIT .................................................................
.127
Description ........................................................... .127
CONSULT-II Reference Value .............................. .127
On Board Diagnosis Logic ................................... .127
Possible Cause .................................................... .127
DTC Confirmation Procedure ............................... .127
Wiring Diagram — AT — FTS .............................. .128
Diagnostic Procedure ........................................... .129
Component Inspection ......................................... .130
DTC P1721 VEHICLE SPEED SENSOR MTR ...... .132
Description ........................................................... .132
CONSULT-II Reference Value .............................. .132
On Board Diagnosis Logic ................................... .132
Possible Cause .................................................... .132
DTC Confirmation Procedure ............................... .132
Diagnostic Procedure ........................................... .133
DTC P1730 A/T INTERLOCK ................................ .134
Description ........................................................... .134
On Board Diagnosis Logic ................................... .134
Possible Cause .................................................... .134
DTC Confirmation Procedure ............................... .134
Judgement of A/T Interlock .................................. .135
Diagnostic Procedure ........................................... .135
DTC P1731 A/T 1ST ENGINE BRAKING .............. .137
Description ........................................................... .137
CONSULT-II Reference Value .............................. .137
On Board Diagnosis Logic ................................... .137
Possible Cause .................................................... .137
DTC Confirmation Procedure ............................... .137
Diagnostic Procedure ........................................... .138
DTC P1752 INPUT CLUTCH SOLENOID VALVE . .139
Description ........................................................... .139
CONSULT-II Reference Value .............................. .139
On Board Diagnosis Logic ................................... .139
Possible Cause .................................................... .139
DTC Confirmation Procedure ............................... .139
Diagnostic Procedure ........................................... .140
DTC P1754 INPUT CLUTCH SOLENOID VALVE
FUNCTION ............................................................. .141
Description ........................................................... .141
CONSULT-II Reference Value .............................. .141
On Board Diagnosis Logic ................................... .141
Possible Cause .................................................... .141
DTC Confirmation Procedure ............................... .141
Diagnostic Procedure ........................................... .142
DTC P1757 FRONT BRAKE SOLENOID VALVE .. .143
Description ........................................................... .143
CONSULT-II Reference Value .............................. .143
On Board Diagnosis Logic ................................... .143
Possible Cause .................................................... .143
DTC Confirmation Procedure ............................... .143
Diagnostic Procedure ........................................... .144
DTC P1759 FRONT BRAKE SOLENOID VALVE
FUNCTION ............................................................. .145
Description ........................................................... .145
CONSULT-II Reference Value .............................. .145
On Board Diagnosis Logic ................................... .145
Possible Cause .................................................... .145

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DTC Confirmation Procedure ..............................
. 145
Diagnostic Procedure .......................................... . 146
DTC P1762 DIRECT CLUTCH SOLENOID VALVE . 147
Description .......................................................... . 147
CONSULT-II Reference Value ............................. . 147
On Board Diagnosis Logic .................................. . 147
Possible Cause ................................................... . 147
DTC Confirmation Procedure .............................. . 147
Diagnostic Procedure .......................................... . 148
DTC P1764 DIRECT CLUTCH SOLENOID VALVE
FUNCTION ............................................................. . 149
Description .......................................................... . 149
CONSULT-II Reference Value ............................. . 149
On Board Diagnosis Logic .................................. . 149
Possible Cause ................................................... . 149
DTC Confirmation Procedure .............................. . 149
Diagnostic Procedure .......................................... . 150
DTC P1767 HIGH AND LOW REVERSE CLUTCH
SOLENOID VALVE ................................................ . 151
Description .......................................................... . 151
CONSULT-II Reference Value ............................. . 151
On Board Diagnosis Logic .................................. . 151
Possible Cause ................................................... . 151
DTC Confirmation Procedure .............................. . 151
Diagnostic Procedure .......................................... . 152
DTC P1769 HIGH AND LOW REVERSE CLUTCH
SOLENOID VALVE FUNCTION ............................ . 153
Description .......................................................... . 153
CONSULT-II Reference Value ............................. . 153
On Board Diagnosis Logic .................................. . 153
Possible Cause ................................................... . 153
DTC Confirmation Procedure .............................. . 153
Diagnostic Procedure .......................................... . 154
DTC P1772 LOW COAST BRAKE SOLENOID
VALVE .................................................................... . 155
Description .......................................................... . 155
CONSULT-II Reference Value ............................. . 155
On Board Diagnosis Logic .................................. . 155
Possible Cause ................................................... . 155
DTC Confirmation Procedure .............................. . 155
Diagnostic Procedure .......................................... . 156
DTC P1774 LOW COAST BRAKE SOLENOID
VALVE FUNCTION ................................................ . 157
Description .......................................................... . 157
CONSULT-II Reference Value ............................. . 157
On Board Diagnosis Logic .................................. . 157
Possible Cause ................................................... . 157
DTC Confirmation Procedure .............................. . 157
Diagnostic Procedure .......................................... . 158
DTC P1841 ATF PRESSURE SWITCH 1 .............. . 159
Description .......................................................... . 159
CONSULT-II Reference Value ............................. . 159
On Board Diagnosis Logic .................................. . 159
Possible Cause ................................................... . 159
DTC Confirmation Procedure .............................. . 159
Diagnostic Procedure .......................................... . 160
DTC P1843 ATF PRESSURE SWITCH 3 .............. . 161
Description .......................................................... . 161
CONSULT-II Reference Value ............................. . 161On Board Diagnosis Logic ...................................
.161
Possible Cause .................................................... .161
DTC Confirmation Procedure .............................. .161
Diagnostic Procedure .......................................... .162
DTC P1845 ATF PRESSURE SWITCH 5 .............. .163
Description ........................................................... .163
CONSULT-II Reference Value ............................. .163
On Board Diagnosis Logic ................................... .163
Possible Cause .................................................... .163
DTC Confirmation Procedure .............................. .163
Diagnostic Procedure .......................................... .164
DTC P1846 ATF PRESSURE SWITCH 6 .............. .165
Description ........................................................... .165
CONSULT-II Reference Value ............................. .165
On Board Diagnosis Logic ................................... .165
Possible Cause .................................................... .165
DTC Confirmation Procedure .............................. .165
Diagnostic Procedure .......................................... .166
MAIN POWER SUPPLY AND GROUND CIRCUIT .167
Wiring Diagram — AT — MAIN ........................... .167
Diagnostic Procedure .......................................... .168
CLOSED THROTTLE POSITION AND WIDE OPEN
THROTTLE POSITION CIRCUIT ........................... .171
CONSULT-II Reference Value ............................. .171
Diagnostic Procedure .......................................... .171
BRAKE SIGNAL CIRCUIT ..................................... .172
CONSULT-II Reference Value ............................. .172
Diagnostic Procedure .......................................... .172
TOW MODE SWITCH ............................................ .173
Description ........................................................... .173
Wiring Diagram — AT — TMSW ......................... .174
Diagnostic Procedure .......................................... .175
TROUBLE DIAGNOSIS FOR SYMPTOMS ........... .176
Wiring Diagram — AT — NONDTC ..................... .176
A/T CHECK Indicator Lamp Does Not Come On . 179
Engine Cannot Be Started In “P” or “N” Position . .179
In “P” Position, Vehicle Moves When Pushed ..... .180
In “N” Position, Vehicle Moves ............................. .181
Large Shock (“N” to “D” Position) ........................ .182
Vehicle Does Not Creep Backward In “R” Position .186
Vehicle Does Not Creep Forward In “D” Position . 189
Vehicle Cannot Be Started From D
1 .................... .191
A/T Does Not Shift: D
1 → D2 ............................... .194
A/T Does Not Shift: D
2 → D3 ............................... .196
A/T Does Not Shift: D
3 → D4 ............................... .198
A/T Does Not Shift: D
4 → D5 ............................... .201
A/T Does Not Perform Lock-up ........................... .203
A/T Does Not Hold Lock-up Condition ................. .205
Lock-up Is Not Released ..................................... .207
Engine Speed Does Not Return to Idle ............... .208
A/T Does Not Shift: 5th gear → 4th gear ............. .209
A/T Does Not Shift: 4th gear → 3rd gear ............. .212
A/T Does Not Shift: 3rd gear → 2nd gear ............ .213
A/T Does Not Shift: 2nd gear → 1st gear .............215
Vehicle Does Not Decelerate By Engine Brake ... .218
A/T SHIFT LOCK SYSTEM ................................... .221
Description ........................................................... .221
Shift Lock System Electrical Parts Location ........ .221
Wiring Diagram — A/T — SHIFT ......................... .222

INDEX FOR DTCAT-5
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INDEX FOR DTCPFP:00024
Alphabetical Index ECS00CDH
NOTE:
If DTC U1000 is displayed with other DTC, first perform the trouble diagnosis for DTC U1000. Refer to
AT- 9 6 , "
DTC U1000 CAN COMMUNICATION LINE" .
*1: These numbers are prescribed by SAE J2012.
*2: These malfunctions cannot be displayed MIL if another malfunction is assigned to MIL.Items
(CONSULT- II screen terms) DTC
Reference page
OBD- II Except OBD- II
CONSULT- II GST (*1) CONSULT- II only “ A/T”
A/T 1ST E/BRAKING —P1731AT- 1 3 7
ATF PRES SW 1/CIRC —P1841AT- 1 5 9
ATF PRES SW 3/CIRC —P1843AT- 1 6 1
ATF PRES SW 5/CIRC —P1845AT- 1 6 3
ATF PRES SW 6/CIRC —P1846AT- 1 6 5
A/T INTERLOCK P1730P1730AT- 1 3 4
A/T TCC S/V FNCTN P0744 P0744 AT- 1 2 0
ATF TEMP SEN/CIRC P0710P1710AT- 1 2 7
CAN COMM CIRCUIT U1000U1000AT- 9 6
D/C SOLENOID/CIRC P1762P1762AT- 1 4 7
D/C SOLENOID FNCTN P1764 (*2 )P1764 AT- 1 4 9
ENGINE SPEED SIG —P0725AT- 11 6
FR/B SOLENOID/CIRC P1757P1757AT- 1 4 3
FR/B SOLENOID FNCT P1759 P1759 AT- 1 4 5
HLR/C SOL/CIRC P1767P1767AT- 1 5 1
HLR/C SOL FNCTN P1769 (*2 ) P1769 AT- 1 5 3
I/C SOLENOID/CIRC P1752P1752AT- 1 3 9
I/C SOLENOID FNCTN P1754 (*2 ) P1754 AT- 1 4 1
L/PRESS SOL/CIRC P0745P0745AT- 1 2 2
LC/B SOLENOID/CIRC P1772P1772AT- 1 5 5
LC/B SOLENOID FNCT P1774 P1774 AT- 1 5 7
PNP SW/CIRC P0705P0705AT- 1 0 5
STARTER RELAY/CIRC —P0615AT- 1 0 0
TCC SOLENOID/CIRC P0740P0740AT- 11 8
TCM P0700P0700AT- 1 0 4
TP SEN/CIRC A/T —P1705AT- 1 2 4
TURBINE REV S/CIRC P0717P0717AT- 1 0 9
VEH SPD SE/CIR·MTR —P1721AT- 1 3 2
VEH SPD SEN/CIR AT P0720P0720AT- 111

AT-6
INDEX FOR DTC
Revision: November 20092006 QX56
DTC No. Index ECS00CDI
NOTE:
If DTC U1000 is displayed with other DTC, first perform the trouble diagnosis for DTC U1000. Refer to
AT- 9 6 , "
DTC U1000 CAN COMMUNICATION LINE" .
*1: These numbers are prescribed by SAE J2012.
*2: These malfunctions cannot be displayed MIL if another malfunction is assigned to MIL.DTC
Items
(CONSULT- II screen terms) Reference page
OBD- II
Except OBD- II
CONSULT- II GST (*1) C O N S U LT- I I
only “A/T ”
— P0615 STARTER RELAY/CIRC AT- 1 0 0
P0700P0700 TCM AT- 1 0 4
P0705P0705 PNP SW/CIRC AT- 1 0 5
P0710P1710 ATF TEMP SEN/CIRC AT- 1 2 7
P0717P0717 TURBINE REV S/CIRC AT- 1 0 9
P0720P0720 VEH SPD SEN/CIR AT AT- 111
—P0725 ENGINE SPEED SIG AT- 11 6
P0740P0740 TCC SOLENOID/CIRC AT- 11 8
P0744 P0744 A/T TCC S/V FNCTN AT- 1 2 0
P0745P0745 L/PRESS SOL/CIRC AT- 1 2 2
—P1705 TP SEN/CIRC A/T AT- 1 2 4
—P1721 VEH SPD SE/CIR· MTR AT- 1 3 2
P1730P1730 A/T INTERLOCK AT- 1 3 4
— P1731 A/T 1ST E/BRAKING AT- 1 3 7
P1752P1752 I/C SOLENOID/CIRC AT- 1 3 9
P1754 (*2 ) P1754 I/C SOLENOID FNCTN AT- 1 4 1
P1757P1757 FR/B SOLENOID/CIRC AT- 1 4 3
P1759 (*2 ) P1759 FR/B SOLENOID FNCT AT- 1 4 5
P1762P1762 D/C SOLENOID/CIRC AT- 1 4 7
P1764 (*2 )P1764 D/C SOLENOID FNCTN AT- 1 4 9
P1767P1767 HLR/C SOL/CIRC AT- 1 5 1
P1769 P1769 HLR/C SOL FNCTN AT- 1 5 3
P1772P1772 LC/B SOLENOID/CIRC AT- 1 5 5
P1774 P1774 LC/B SOLENOID FNCT AT- 1 5 7
—P1841 ATF PRES SW 1/CIRC AT- 1 5 9
—P1843 ATF PRES SW 3/CIRC AT- 1 6 1
—P1845 ATF PRES SW 5/CIRC AT- 1 6 3
—P1846 ATF PRES SW 6/CIRC AT- 1 6 5
U1000U1000 CAN COMM CIRCUIT AT- 9 6

PRECAUTIONSAT-7
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Revision: November 2009 2006 QX56
PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
ECS00CDJ
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER ”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING:

To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer.

Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.

Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.
Precautions for On Board Diagnostic (OBD) System of A/T and EngineECS00CDK
The ECM has an on board diagnostic system. It will light up the malfunction indicator lamp (MIL) to warn the
driver of a malfunction causing emission deterioration.
CAUTION:

Be sure to turn the ignition switch “OFF” and disconnect the negative battery cable before any
repair or inspection work. The open/short circuit of related switches, sensors, solenoid valves,
etc. Will cause the MIL to light up.

Be sure to connect and lock the connectors securely after work. A loose (unlocked) connector will
cause the MIL to light up due to an open circuit. (Be sure the connector is free from water, grease,
dirt, bent terminals, etc.)

Be sure to route and secure the harnesses properly after work. Interference of the harness with a
bracket, etc. May cause the MIL to light up due to a short circuit.

Be sure to connect rubber tubes properly after work. A misconnected or disconnected rubber tube
may cause the MIL to light up due to a malfunction of the EGR system or fuel injection system, etc.

Be sure to erase the unnecessary malfunction information (repairs completed) from the TCM and
ECM before returning the vehicle to the customer.