brake fluid INFINITI QX4 2001 Factory User Guide
[x] Cancel search | Manufacturer: INFINITI, Model Year: 2001, Model line: QX4, Model: INFINITI QX4 2001Pages: 2395, PDF Size: 43.2 MB
Page 87 of 2395
Items Symptom Condition Diagnostic Item Reference Page
Shift ShockToo sharp a
shock in change
from D
1to D2.ON vehicle1. Throttle position sensor (Adjustment) EC-174
2. Line pressure test AT-62
3. Accumulator servo release AT-273
4. Control valve assembly AT-273
5. A/T fluid temperature sensor AT-105
OFF vehicle 6. Brake band AT-333
Too sharp a
shock in change
from D
2to D3.ON vehicle1. Throttle position sensor (Adjustment) EC-174
2. Line pressure test AT-62
3. Control valve assembly AT-273
OFF vehicle4. High clutch AT-317
5. Brake band AT-333
Too sharp a
shock in change
from D
3to D4.ON vehicle1. Throttle position sensor (Adjustment) EC-174
2. Line pressure test AT-62
3. Control valve assembly AT-273
OFF vehicle4. Brake band AT-333
5. Overrun clutch AT-320
Gear change
shock felt during
deceleration by
releasing accel-
erator pedal.ON vehicle1. Throttle position sensor (Adjustment) EC-174
2. Line pressure test AT-62
3. Overrun clutch solenoid valve AT-185
4. Control valve assembly AT-273
Large shock
changing from 1
2to 11in 1 position.ON vehicle 1. Control valve assembly AT-273
ON vehicle 2. Low & reverse brake AT-324
Improper Shift
TimingToo high a gear
change point from
D
1to D2, from D2to D3, from D3to
D
4.
AT-236, 239, 242ON vehicle1. Throttle position sensor (Adjustment) EC-174
2. Vehicle speed sensor´A/T (Revolution
sensor) and vehicle speed sensor´MTRAT- 111 , 1 9 7
3. Shift solenoid valve A AT-168
4. Shift solenoid valve B AT-172
Gear change
directly from D
1to
D
3occurs.ON vehicle1. Fluid level AT-59
2. Accumulator servo release AT-273
OFF vehicle 3. Brake band AT-333
Too high a
change point from
D
4to D3, from D3to D2, from D2to
D
1.ON vehicle1. Throttle position sensor (Adjustment) EC-174
2. Vehicle speed sensor´A/T (Revolution
sensor) and vehicle speed sensor´MTRAT- 111 , 1 9 7
Kickdown does
not operate when
depressing pedal
in D
4within kick-
down vehicle
speed.ON vehicle1. Throttle position sensor (Adjustment) EC-174
2. Vehicle speed sensor´A/T (Revolution
sensor) and vehicle speed sensor´MTRAT- 111 , 1 9 7
3. Shift solenoid valve A AT-168
4. Shift solenoid valve B AT-172
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTION
Symptom Chart (Cont'd)
AT-82
Page 88 of 2395
Items Symptom Condition Diagnostic Item Reference Page
Improper Shift
TimingKickdown oper-
ates or engine
overruns when
depressing pedal
in D
4beyond kick-
down vehicle
speed limit.ON vehicle1. Vehicle speed sensor´A/T (Revolution
sensor) and vehicle speed sensor´MTRAT- 111 , 1 9 7
2. Throttle position sensor (Adjustment) EC-174
3. Shift solenoid valve A AT-168
4. Shift solenoid valve B AT-172
Gear change from
2
2to 23in 2 posi-
tion.ON vehicle1. Park/neutral position (PNP) switch
adjustmentAT-276
Gear change from
1
1to 12in 1 posi-
tion.ON vehicle1. Park/neutral position (PNP) switch
adjustmentAT-276
2. Manual control linkage adjustment AT-276
No Down ShiftFailure to change
gear from D
4to
D
3.ON vehicle1. Fluid level AT-59
2. Throttle position sensor (Adjustment) EC-174
3. Overrun clutch solenoid valve AT-185
4. Shift solenoid valve A AT-168
5. Line pressure solenoid valve AT-162
6. Control valve assembly AT-273
OFF vehicle7. Low & reverse brake AT-324
8. Overrun clutch AT-320
Failure to change
gear from D
3to
D
2or from D4to
D
2.ON vehicle1. Fluid level AT-59
2. Throttle position sensor (Adjustment) EC-174
3. Shift solenoid valve A AT-168
4. Shift solenoid valve B AT-172
5. Control valve assembly AT-273
OFF vehicle6. High clutch AT-317
7. Brake band AT-333
Failure to change
gear from D
2to
D
1or from D3to
D
1.ON vehicle1. Fluid level AT-59
2. Throttle position sensor (Adjustment) EC-174
3. Shift solenoid valve A AT-168
4. Shift solenoid valve B AT-172
5. Control valve assembly AT-273
OFF vehicle6. Low one-way clutch AT-328
7. High clutch AT-317
8. Brake band AT-333
GI
MA
EM
LC
EC
FE
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTION
Symptom Chart (Cont'd)
AT-83
Page 90 of 2395
Items Symptom Condition Diagnostic Item Reference Page
No Up ShiftFailure to change
gear from D
3to
D
4.ON vehicle1. Park/neutral position (PNP) switch
adjustmentAT-276
2. Manual control linkage adjustment AT-276
3. Shift solenoid valve A AT-168
4. Vehicle speed sensor´A/T (Revolution
sensor) and vehicle speed sensor´MTRAT- 111 , 1 9 7
5. A/T fluid temperature sensor AT-105
OFF vehicle 6. Brake band AT-333
A/T does not shift
to D
4when driv-
ing with overdrive
control switch ON.ON vehicle1. Throttle position sensor (Adjustment) EC-174
2. Park/neutral position (PNP) switch
adjustmentAT-276
3. Vehicle speed sensor´A/T (Revolution
sensor) and vehicle speed sensor´MTRAT- 111 , 1 9 7
4. Shift solenoid valve A AT-168
5. Overrun clutch solenoid valve AT-185
6. Control valve assembly AT-273
7. A/T fluid temperature sensor AT-105
8. Line pressure solenoid valve AT-162
OFF vehicle9. Brake band AT-333
10. Overrun clutch AT-320
Slips/Will Not
EngageVehicle will not
run in R position
(but runs in D, 2
and 1 positions).
Clutch slips.
Very poor accel-
eration.
AT-227ON vehicle1. Manual control linkage adjustment AT-276
2. Line pressure test AT-62
3. Line pressure solenoid valve AT-162
4. Control valve assembly AT-273
OFF vehicle5. Reverse clutch AT-314
6. High clutch AT-317
7. Forward clutch AT-320
8. Overrun clutch AT-320
9. Low & reverse brake AT-324
Vehicle will not
run in D and 2
positions (but
runs in 1 and R
positions).ON vehicle 1. Manual control linkage adjustment AT-276
OFF vehicle 2. Low one-way clutch AT-328
GI
MA
EM
LC
EC
FE
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTION
Symptom Chart (Cont'd)
AT-85
Page 91 of 2395
Items Symptom Condition Diagnostic Item Reference Page
Slips/Will Not
EngageVehicle will not
run in D, 1, 2
positions (but
runs in R posi-
tion). Clutch slips.
Very poor accel-
eration.
AT-230ON vehicle1. Fluid level AT-59
2. Line pressure test AT-62
3. Line pressure solenoid valve AT-162
4. Control valve assembly AT-273
5. Accumulator N-D AT-273
OFF vehicle6. Reverse clutch AT-314
7. High clutch AT-317
8. Forward clutch AT-320
9. Forward one-way clutch AT-330
10. Low one-way clutch AT-328
Clutches or
brakes slip some-
what in starting.ON vehicle1. Fluid level AT-59
2. Manual control linkage adjustment AT-276
3. Throttle position sensor (Adjustment) EC-174
4. Line pressure test AT-62
5. Line pressure solenoid valve AT-162
6. Control valve assembly AT-273
7. Accumulator N-D AT-273
OFF vehicle8. Forward clutch AT-320
9. Reverse clutch AT-314
10. Low & reverse brake AT-324
11. Oil pump AT-297
12. Torque converter AT-286
No creep at all.
AT-227, 230ON vehicle1. Fluid level AT-59
2. Line pressure test AT-62
3. Control valve assembly AT-273
OFF vehicle4. Forward clutch AT-320
5. Oil pump AT-297
6. Torque converter AT-286
Almost no shock
or clutches slip-
ping in change
from D
1to D2.ON vehicle1. Fluid level AT-59
2. Throttle position sensor (Adjustment) EC-174
3. Line pressure test AT-62
4. Accumulator servo release AT-273
5. Control valve assembly AT-273
OFF vehicle 6. Brake band AT-333
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTION
Symptom Chart (Cont'd)
AT-86
Page 92 of 2395
Items Symptom Condition Diagnostic Item Reference Page
Slips/Will Not
EngageAlmost no shock
or slipping in
change from D
2to
D
3.ON vehicle1. Fluid level AT-59
2. Throttle position sensor (Adjustment) EC-174
3. Line pressure test AT-62
4. Control valve assembly AT-273
OFF vehicle5. High clutch AT-317
6. Forward clutch AT-320
Almost no shock
or slipping in
change from D
3to
D
4.ON vehicle1. Fluid level AT-59
2. Throttle position sensor (Adjustment) EC-174
3. Line pressure test AT-62
4. Control valve assembly AT-273
OFF vehicle5. High clutch AT-317
6. Brake band AT-333
Races extremely
fast or slips in
changing from D
4to D3when
depressing pedal.ON vehicle1. Fluid level AT-59
2. Throttle position sensor (Adjustment) EC-174
3. Line pressure test AT-62
4. Line pressure solenoid valve AT-162
5. Control valve assembly AT-273
OFF vehicle6. High clutch AT-317
7. Forward clutch AT-320
Races extremely
fast or slips in
changing from D
4to D2when
depressing pedal.ON vehicle1. Fluid level AT-59
2. Throttle position sensor (Adjustment) EC-174
3. Line pressure test AT-62
4. Line pressure solenoid valve AT-162
5. Shift solenoid valve A AT-168
6. Control valve assembly AT-273
OFF vehicle7. Brake band AT-333
8. Forward clutch AT-320
Races extremely
fast or slips in
changing from D
3to D2when
depressing pedal.ON vehicle1. Fluid level AT-59
2. Throttle position sensor (Adjustment) EC-174
3. Line pressure test AT-62
4. Line pressure solenoid valve AT-162
5. Control valve assembly AT-273
6. A/T fluid temperature sensor AT-105
OFF vehicle7. Brake band AT-333
8. Forward clutch AT-320
9. High clutch AT-317
GI
MA
EM
LC
EC
FE
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTION
Symptom Chart (Cont'd)
AT-87
Page 93 of 2395
Items Symptom Condition Diagnostic Item Reference Page
Slips/Will Not
EngageRaces extremely
fast or slips in
changing from D
4or D3to D1when
depressing pedal.ON vehicle1. Fluid level AT-59
2. Throttle position sensor (Adjustment) EC-174
3. Line pressure test AT-62
4. Line pressure solenoid valve AT-162
5. Control valve assembly AT-273
OFF vehicle6. Forward clutch AT-320
7. Forward one-way clutch AT-330
8. Low one-way clutch AT-328
Vehicle will not
run in any posi-
tion.ON vehicle1. Fluid level AT-59
2. Manual control linkage adjustment AT-276
3. Line pressure test AT-62
4. Line pressure solenoid valve AT-162
OFF vehicle5. Oil pump AT-297
6. High clutch AT-317
7. Brake band AT-333
8. Low & reverse brake AT-324
9. Torque converter AT-286
10. Parking pawl components AT-337
NOT USEDEngine cannot be
started in P and N
positions.
AT-221ON vehicle1. Ignition switch and starter EL-9, and SC-10
2. Manual control linkage adjustment AT-276
3. Park/neutral position (PNP) switch
adjustmentAT-276
Engine starts in
positions other
than P and N.
AT-221ON vehicle1. Manual control linkage adjustment AT-276
2. Park/neutral position (PNP) switch
adjustmentAT-276
Transmission
noise in P and N
positions.ON vehicle1. Fluid level AT-59
2. Line pressure test AT-62
3. Throttle position sensor (Adjustment) EC-174
4. Vehicle speed sensor´A/T (Revolution
sensor) and vehicle speed sensor´MTRAT- 111 , 1 9 7
5. Engine speed signal AT-116
OFF vehicle6. Oil pump AT-297
7. Torque converter AT-286
Vehicle moves
when changing
into P position or
parking gear does
not disengage
when shifted out
of P position.
AT-222ON vehicle 1. Manual control linkage adjustment AT-276
OFF vehicle 2. Parking pawl components AT-337
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTION
Symptom Chart (Cont'd)
AT-88
Page 94 of 2395
Items Symptom Condition Diagnostic Item Reference Page
NOT USEDVehicle runs in N
position.
AT-223ON vehicle 1. Manual control linkage adjustment AT-276
OFF vehicle2. Forward clutch AT-320
3. Reverse clutch AT-314
4. Overrun clutch AT-320
Vehicle braked
when shifting into
R position.ON vehicle1. Fluid level AT-59
2. Manual control linkage adjustment AT-276
3. Line pressure test AT-62
4. Line pressure solenoid valve AT-162
5. Control valve assembly AT-273
OFF vehicle6. High clutch AT-317
7. Brake band AT-333
8. Forward clutch AT-320
9. Overrun clutch AT-320
Excessive creep. ON vehicle 1. Engine idling rpm EC-431
Engine stops
when shifting
lever into R, D, 2
and 1.ON vehicle1. Engine idling rpm EC-431
2. Torque converter clutch solenoid valve AT-148
3. Control valve assembly AT-273
OFF vehicle 4. Torque converter AT-286
Vehicle braked by
gear change from
D
1to D2.ON vehicle 1. Fluid level AT-59
OFF vehicle2. Reverse clutch AT-314
3. Low & reverse brake AT-324
4. High clutch AT-317
5. Low one-way clutch AT-328
Vehicle braked by
gear change from
D
2to D3.ON vehicle 1. Fluid level AT-59
OFF vehicle 2. Brake band AT-333
Vehicle braked by
gear change from
D
3to D4.ON vehicle 1. Fluid level AT-59
OFF vehicle2. Overrun clutch AT-320
3. Forward one-way clutch AT-330
4. Reverse clutch AT-314
GI
MA
EM
LC
EC
FE
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTION
Symptom Chart (Cont'd)
AT-89
Page 95 of 2395
Items Symptom Condition Diagnostic Item Reference Page
NOT USEDMaximum speed
not attained.
Acceleration poor.ON vehicle1. Fluid level AT-59
2. Park/neutral position (PNP) switch
adjustmentAT-276
3. Shift solenoid valve A AT-168
4. Shift solenoid valve B AT-172
5. Control valve assembly AT-273
OFF vehicle6. Reverse clutch AT-314
7. High clutch AT-317
8. Brake band AT-333
9. Low & reverse brake AT-324
10. Oil pump AT-297
11. Torque converter AT-286
Transmission
noise in D, 2, 1
and R positions.ON vehicle 1. Fluid level AT-59
ON vehicle 2. Torque converter AT-286
Engine brake
does not operate
in ª1º position.
AT-252ON vehicle1. Park/neutral position (PNP) switch
adjustmentAT-276
2. Manual control linkage adjustment AT-276
3. Throttle position sensor (Adjustment) EC-174
4. Vehicle speed sensor´A/T (Revolution
sensor) and vehicle speed sensor´MTRAT- 111 , 1 9 7
5. Shift solenoid valve A AT-168
6. Control valve assembly AT-273
7. Overrun clutch solenoid valve AT-185
OFF vehicle8. Overrun clutch AT-320
9. Low & reverse brake AT-324
Transmission
overheats.ON vehicle1. Fluid level AT-59
2. Engine idling rpm EC-431
3. Throttle position sensor (Adjustment) EC-174
4. Line pressure test AT-62
5. Line pressure solenoid valve AT-162
6. Control valve assembly AT-273
OFF vehicle7. Oil pump AT-297
8. Reverse clutch AT-314
9. High clutch AT-317
10. Brake band AT-333
11. Forward clutch AT-320
12. Overrun clutch AT-320
13. Low & reverse brake AT-324
14. Torque converter AT-286
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTION
Symptom Chart (Cont'd)
AT-90
Page 96 of 2395
Items Symptom Condition Diagnostic Item Reference Page
NOT USEDATF shoots out
during operation.
White smoke
emitted from
exhaust pipe dur-
ing operation.ON vehicle 1. Fluid level AT-59
OFF vehicle2. Reverse clutch AT-314
3. High clutch AT-317
4. Brake band AT-333
5. Forward clutch AT-320
6. Overrun clutch AT-320
7. Low & reverse brake AT-324
Offensive smell at
fluid charging
pipe.ON vehicle 1. Fluid level AT-59
OFF vehicle2. Torque converter AT-286
3. Oil pump AT-297
4. Reverse clutch AT-314
5. High clutch AT-317
6. Brake band AT-333
7. Forward clutch AT-320
8. Overrun clutch AT-320
9. Low & reverse brake AT-324
Engine is stopped
at R, D, 2 and 1
positions.ON vehicle1. Fluid level AT-59
2. Torque converter clutch solenoid valve AT-148
3. Shift solenoid valve B AT-172
4. Shift solenoid valve A AT-168
5. Control valve assembly AT-273
GI
MA
EM
LC
EC
FE
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTION
Symptom Chart (Cont'd)
AT-91
Page 100 of 2395
Terminal
No.Wire color Item ConditionJudgement
standard
(Approx.)
39 W/BEngine speed
signal
Refer to EC-127, ªECM INSPECTION
TABLEº.Ð
40 W/LVehicle speed
sensor
When moving vehicle at 2 to 3 km/h (1 to 2
MPH) for1m(3ft)ormore.Voltage varies
between less
than 1.0V and
more than
4.5V.
41 PThrottle position
sensor
When depressing accelerator pedal slowly
after warming up engine.
(Voltage rises gradually in response to throttle
position.)Fully-closed
throttle:
0.5V - 0.7V
Fully-open
throttle:
4V
42 BThrottle position
sensor
(Ground)Ð0V
45 G/Y Stop lamp switchWhen depressing brake pedalBattery volt-
age
When releasing brake pedal 0V
46 WTransfer control
unitÐÐ
47 RA/T fluid tempera-
ture sensorWhen ATF temperature is 20ÉC (68ÉF). 1.5V
When ATF temperature is 80ÉC (176ÉF). 0.5V
48 B Ground
Ð0V
*1: These terminals are connected to the ECM.
*2: These terminals are connected to the Data link connector for CONSULT-II.
GI
MA
EM
LC
EC
FE
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTION
TCM Terminals and Reference Value (Cont'd)
AT-95