Page 348 of 2395

SAT952A
j. Install needle bearing onto rear internal gear.
IApply petroleum jelly to needle bearing.
SAT953A
k. Install bearing race onto rear of front internal gear.
IApply petroleum jelly to bearing race.
ISecurely engage pawls of bearing race with holes in front
internal gear.
SAT954A
l. Install front internal gear on transmission case.
SAT546J
5. Install rear extension assembly on transmission case (2WD
model only).
a. Install revolution sensor on rear extension.
b. Install rear extension gasket on transmission case.
c. Install parking rod on transmission case.
d. Install parking gear and needle bearing.
IInsert rear extension assembly into place while holding
parking gear and needle bearing by hand.
SAT216B
6. Install output shaft and parking gear (4WD model only).
a. Insert output shaft from rear of transmission case while slightly
lifting front internal gear.
IDo not force output shaft against front of transmission
case.
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ASSEMBLY
Assembly (1) (Cont'd)
AT-343
Page 350 of 2395
SAT757I
b. Install O-ring on revolution sensor.
IApply ATF to O-ring.
c. Install revolution sensor on adapter case.
SAT963A
d. Install adapter case gasket on transmission case.
SAT964A
e. Install parking rod on transmission case.
SAT755I
f. Install adapter case on transmission case.
SAT974A
8. Install front side clutch and gear components.
a. Install rear sun gear on transmission case.
IPay attention to its direction.
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ASSEMBLY
Assembly (1) (Cont'd)
AT-345
Page 357 of 2395
SAT001B
7. Install turbine revolution sensor.
8. Adjust brake band.
a. Tighten anchor end bolt to specified torque.
Anchor end bolt:
:4-6N´m(0.4 - 0.6 kg-m, 35 - 52 in-lb)
b. Back off anchor end bolt two and a half turns.
SAT002B
c. While holding anchor end bolt, tighten lock nut.
Ancher end bolt nut:
: 41 - 50 N´m (4.1 - 5.2 kg-m, 30 - 37 ft-lb)
SAT115B
9. Install terminal cord assembly.
a. Install O-ring on terminal cord assembly.
IApply petroleum jelly to O-ring.
b. Compress terminal cord assembly stopper and install terminal
cord assembly on transmission case.
SAT004BA
10. Install control valve assembly.
a. Install accumulator piston return springs B, C and D.
Free length of return springs:
Refer to SDS, AT-357.
SAT005B
b. Install manual valve on control valve.
IApply ATF to manual valve.
ASSEMBLY
Assembly (2) (Cont'd)
AT-352
Page 366 of 2395

Reverse Clutch Drum End PlayNBAT0170
Reverse clutch drum end play ªT2º 0.55 - 0.90 mm (0.0217 - 0.0354 in)
Thickness of oil pump thrust washerThickness mm (in) Part number*
0.9 (0.035)
1.1 (0.043)
1.3 (0.051)
1.5 (0.059)
1.7 (0.067)
1.9 (0.075)31528-21X01
31528-21X02
31528-21X03
31528-21X04
31528-21X05
31528-21X06
Removal and InstallationNBAT0171
Manual control linkageNumber of returning revolutions for lock nut 2
Lock nut tightening torque4.4 - 5.9 N´m
(0.45 - 0.60 kg-m, 39.1 - 52.1 in-lb)
Distance between end of converter housing and torque converter 25.0 mm (0.984 in) or more
*: Always check with the Parts Department for the latest parts information.
Shift Solenoid ValvesNBAT0217
Gear position1234
Shift solenoid valve A ON (Closed) OFF (Open) OFF (Open) ON (Closed)
Shift solenoid valve B ON (Closed) ON (Closed) OFF (Open) OFF (Open)
Solenoid ValvesNBAT0218
Solenoid valves Resistance (Approx.)WTerminal No.
Shift solenoid valve A 20 - 40 3
Shift solenoid valve B 20 - 40 2
Overrun clutch solenoid valve 20 - 40 4
Line pressure solenoid valve 2.5 - 5 6
Torque converter clutch solenoid valve 10 - 20 7
A/T Fluid Temperature SensorNBAT0219Remarks: Specification data are reference values.
Monitor item Condition Specification
A/T fluid tem-
perature
sensorCold [20ÉC (68ÉF)]
"
Hot [80ÉC (176ÉF)]Approximately 1.5V
"
Approximately 0.5VApproximately 2.5 kW
"
Approximately 0.3 kW
Turbine Revolution SensorNBAT0232
Terminal No. Resistance
1 2 2.4 - 2.8 kW
2 3 No continuity
1 3 No continuity
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SERVICE DATA AND SPECIFICATIONS (SDS)
Reverse Clutch Drum End Play
AT-361
Page 367 of 2395
Revolution SensorNBAT0220
Terminal No. Resistance
1 2 500 - 650W
2 3 No continuity
1 3 No continuity
Dropping ResistorNBAT0221
Resistance11.2 - 12.8W
SERVICE DATA AND SPECIFICATIONS (SDS)
Revolution Sensor
AT-362
Page 545 of 2395

Items
(CONSULT-II screen terms)DTC*1 Reference page
INT/V TIM V/CIR-B1 P1111EC-451
INT/V TIM V/CIR-B2 P1136 EC-451
KNOCK SEN/CIRC-B1 P0325*2 EC-328
L/PRES SOL/CIRC P0745 AT-174
MAF SEN/CIRCUIT*3 P0100 EC-150
MULTI CYL MISFIRE P0300 EC-320
NATS MALFUNCTION P1610 - P1615*2 EL-328
NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.P0000 Ð
O/R CLTCH SOL/CIRC P1760 AT-223
P-N POS SW/CIRCUIT P1706 EC-604
PNP SW/CIRC P0705 AT-111
PURG VOLUME CONT/V P0443 EC-367
PURG VOLUME CONT/V P1444 EC-541
SFT SOL A/CIRC*3 P0750 AT-180
SFT SOL B/CIRC*3 P0755 AT-189
SWIRL CONT SOL/V P1130 EC-458
SWL CON VC SW/CIRC P1165 EC-493
TCC SOLENOID/CIRC P0740 AT-165
TP SEN/CIRC A/T*3 P1705 AT-218
TRTL POS SEN/CIRC*3 P0120 EC-174
TW CATALYST SYS-B1 P0420 EC-347
TW CATALYST SYS-B2 P0430 EC-347
VC CUT/V BYPASS/V P1491 EC-591
VC/V BYPASS/V P1490 EC-585
VEH SPEED SEN/CIRC*4 P0500 EC-417
VEH SPD SEN/CIR A/T*4 P0720 AT-124
VENT CONTROL VALVE P0446 EC-374
VENT CONTROL VALVE P1446 EC-553
VENT CONTROL VALVE P1448 EC-573
*1: 1st trip DTC No. is the same as DTC No.
*2: This DTC is displayed with CONSULT-II only.
*3: When the fail-safe operation occurs, the MIL illuminates.
*4: The MIL illuminates when both the ªRevolution sensor signalº and the ªVehicle speed sensor signalº meet the fail-safe condition at
the same time.
NOTE:
IRegarding R50 models, ª-B1º and ªBK1º indicate right bank and ª-B2º and ªBK2º indicate left bank.
IBank 1 (-B1 or BK1) includes No. 1 cylinder.
TROUBLE DIAGNOSIS Ð INDEX
Alphabetical & P No. Index for DTC (Cont'd)
EC-10
Page 548 of 2395

DTC*1Items
(CONSULT-II screen terms)Reference page
P0750 SFT SOL A/CIRC*3 AT-180
P0755 SFT SOL B/CIRC*3 AT-189
P1110 INT/V TIM CONT-B1 EC-446
P 1111INT/V TIM V/CIR-B1 EC-451
P1130 SWIRL CONT SOL/V EC-458
P1135 INT/V TIM CONT-B2 EC-446
P1136 INT/V TIM V/CIR-B2 EC-451
P1140 INTK TIM S/CIRC-B1 EC-482
P1145 INTK TIM S/CIRC-B2 EC-482
P1148 CLOSED LOOP-B1 EC-491
P1165 SWL CON VC SW/CIRC EC-493
P1168 CLOSED LOOP-B2 EC-491
P1217 ENG OVER TEMP LC-24
P1320 IGN SIGNAL-PRIMARY EC-499
P1335 CPS/CIRCUIT (REF) EC-510
P1336 CPS/CIRC (POS) COG EC-517
P1441 EVAP VERY SMALL LEAK EC-526
P1444 PURG VOLUME CONT/V EC-541
P1446 VENT CONTROL VALVE EC-553
P1447 EVAP PURG FLOW/MON EC-561
P1448 VENT CONTROL VALVE EC-573
P1464 FUEL LEVEL SEN/CIRC EC-582
P1490 VC/V BYPASS/V EC-585
P1491 VC CUT/V BYPASS/V EC-591
P1605 A/T DIAG COMM LINE EC-603
P1610 - P1615*2 NATS MALFUNCTION EL-328
P1705 TP SEN/CIRC A/T*3 AT-218
P1706 P-N POS SW/CIRCUIT EC-604
P1760 O/R CLTCH SOL/CIRC AT-223
*1: 1st trip DTC No. is the same as DTC No.
*2: This DTC is displayed with CONSULT-II only.
*3: When the fail-safe operation occurs, the MIL illuminates.
*4: The MIL illuminates when both the ªRevolution sensor signalº and the ªVehicle speed sensor signalº meet the fail-safe condition at
the same time.
NOTE:
IRegarding R50 models, ª-B1º and ªBK1º indicate right bank and ª-B2º and ªBK2º indicate left bank.
IBank 1 (-B1 or BK1) includes No. 1 cylinder.
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TROUBLE DIAGNOSIS Ð INDEX
Alphabetical & P No. Index for DTC (Cont'd)
EC-13
Page 622 of 2395
![INFINITI QX4 2001 Factory Service Manual DATA MONITOR MODE=NBEC0034S06
Monitored item [Unit]ECM
input
signalsMain
signalsDescription Remarks
ENG SPEED [rpm]qqIIndicates the engine speed computed
from the REF signal (120É signal) of the
cran INFINITI QX4 2001 Factory Service Manual DATA MONITOR MODE=NBEC0034S06
Monitored item [Unit]ECM
input
signalsMain
signalsDescription Remarks
ENG SPEED [rpm]qqIIndicates the engine speed computed
from the REF signal (120É signal) of the
cran](/manual-img/42/57027/w960_57027-621.png)
DATA MONITOR MODE=NBEC0034S06
Monitored item [Unit]ECM
input
signalsMain
signalsDescription Remarks
ENG SPEED [rpm]qqIIndicates the engine speed computed
from the REF signal (120É signal) of the
crankshaft position sensor (REF).
CKPS´RPM (POS)
[rpm]qIIndicates the engine speed computed
from the POS signal (1É signal) of the
crankshaft position sensor (POS).IAccuracy becomes poor if engine
speed drops below the idle rpm.
IIf the signal is interrupted while the
engine is running, an abnormal value
may be indicated.
POS COUNTqIIndicates the number of signal plate
(Flywheel/Drive Plate) cogs (tooth) dur-
ing one revolution of the engine.
MAS A/F SE-B1 [V]qqIThe signal voltage of the mass air flow
sensor is displayed.IWhen the engine is stopped, a certain
value is indicated.
COOLAN TEMP/S
[ÉC] or [ÉF]qqIThe engine coolant temperature (deter-
mined by the signal voltage of the
engine coolant temperature sensor) is
displayed.IWhen the engine coolant temperature
sensor is open or short-circuited, ECM
enters fail-safe mode. The engine cool-
ant temperature determined by the
ECM is displayed.
HO2S1 (B1) [V]qq
IThe signal voltage of the front heated
oxygen sensor is displayed.
HO2S1 (B2) [V]qq
HO2S2 (B1) [V]qq
IThe signal voltage of the rear heated
oxygen sensor is displayed.
HO2S2 (B2) [V]qq
HO2S1 MNTR (B1)
[RICH/LEAN]qIDisplay of front heated oxygen sensor
signal during air-fuel ratio feedback
control:
RICH ... means the mixture became
ªrichº, and control is being affected
toward a leaner mixture.
LEAN ... means the mixture became
ªleanº, and control is being affected
toward a rich mixture.IAfter turning ON the ignition switch,
ªRICHº is displayed until air-fuel mixture
ratio feedback control begins.
IWhen the air-fuel ratio feedback is
clamped, the value just before the
clamping is displayed continuously. HO2S1 MNTR (B2)
[RICH/LEAN]q
HO2S2 MNTR (B1)
[RICH/LEAN]qIDisplay of rear heated oxygen sensor
signal:
RICH ... means the amount of oxygen
after three way catalyst is relatively
small.
LEAN ... means the amount of oxygen
after three way catalyst is relatively
large.IWhen the engine is stopped, a certain
value is indicated.
HO2S2 MNTR (B2)
[RICH/LEAN]q
VHCL SPEED SE
[km/h] or [mph]qqIThe vehicle speed computed from the
vehicle speed sensor signal is dis-
played.
BATTERY VOLT [V]qqIThe power supply voltage of ECM is
displayed.
THRTL POS SEN [V]qqIThe throttle position sensor signal volt-
age is displayed.
FUEL T/TMP SE
[ÉC] or [ÉF]IThe fuel temperature judged from the
tank fuel temperature sensor signal
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ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
CONSULT-II (Cont'd)
EC-87