brake sensor INFINITI FX35 2004 Workshop Manual

TROUBLE DIAGNOSIS
AT-81
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Revision: 2004 November 2004 FX35/FX45
40
Slips/Will
Not
EngageWhile accelerating in
4th, engine races or
slippage occurs.ON vehicle1. Fluid level and stateAT- 5 1
2. Line pressure testAT- 5 2
3. Accelerator pedal position sensorAT-136
4. CAN communication lineAT-105
5. ATF pressure switch 3 and input clutch solenoid valveAT-180,
AT-152
6. Control valve with TCMAT-242
OFF vehicle7. Torque converterAT-286
8. Oil pump assemblyAT-303
9. Input clutchAT-308
10. Gear systemAT-274
11. High and low reverse clutchAT-320
12. Direct clutchAT-323
41 While accelerating in
5th, engine races or
slippage occurs.ON vehicle1. Fluid level and stateAT- 5 1
2. Line pressure testAT- 5 2
3. Accelerator pedal position sensorAT-136
4. CAN communication lineAT-105
5. ATF pressure switch 1 and front brake solenoid valveAT-178,
AT-156
6. Control valve with TCMAT-242
OFF vehicle7. Torque converterAT-286
8. Oil pump assembly AT-303
9. Front brake (brake band)AT-286
10. Input clutchAT-308
11. Gear systemAT-274
12. High and low reverse clutchAT-320
42 Slips at lock-up.ON vehicle1. Fluid level and stateAT- 5 1
2. Line pressure testAT- 5 2
3. Engine speed signalAT-121
4. Turbine revolution sensorAT-143
5. Torque converter clutch solenoid valveAT-123
6. CAN communication lineAT-105
7. Control valve with TCMAT-242
OFF vehicle8. Torque converterAT-2869. Oil pump assemblyAT-303
No. Items Symptom Condition Diagnostic ItemReference
page

AT-82
TROUBLE DIAGNOSIS
Revision: 2004 November 2004 FX35/FX45
43
Slips/Will
Not
EngageNo creep at all.
Refer to AT-198,
"Vehicle Does Not
Creep Backward In
“R” Position" , AT-201,
"Vehicle Does Not
Creep Forward In “D”
Position"
ON vehicle1. Fluid level and stateAT- 5 1
2. Line pressure testAT- 5 2
3. Accelerator pedal position sensorAT- 1 3 6
4. ATF pressure switch 5 and direct clutch solenoid valveAT- 1 8 2,
AT- 1 6 0
5. PNP switchAT- 11 2
6. CAN communication lineAT- 1 0 5
7. Control linkage adjustmentAT- 2 3 4
8. Control valve with TCMAT- 2 4 2
OFF vehicle9. Torque converterAT- 2 8 6
10. Oil pump assemblyAT- 3 0 3
11. 1st one-way clutchAT- 3 1 4
12. Gear systemAT- 2 7 4
13. Reverse brakeAT- 2 8 6
14. Direct clutchAT- 3 2 3
15. Forward one-way clutch (Parts behind drum support is
impossible to perform inspection by disassembly. Refer to
AT-17, "
Cross-Sectional View (2WD Models)" or AT-18,
"Cross-Sectional View (AWD Models)" )AT- 2 8 6
16. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to AT-17,
"Cross-Sectional View (2WD Models)" or AT- 1 8 , "Cross-
Sectional View (AWD Models)" )AT- 2 8 6
44Vehicle cannot run in
all positions.ON vehicle1. Fluid level and stateAT- 5 1
2. Line pressure testAT- 5 2
3. PNP switchAT- 11 2
4. Control linkage adjustmentAT- 2 3 4
5. Control valve with TCMAT- 2 4 2
OFF vehicle6. Oil pump assemblyAT- 3 0 37. Gear systemAT- 2 7 4
8. Output shaftAT- 2 8 6
No. Items Symptom Condition Diagnostic ItemReference
page

AT-84
TROUBLE DIAGNOSIS
Revision: 2004 November 2004 FX35/FX45
48
Does Not
ChangeDoes not change M4
→ M
3 .ON vehicle1. PNP switchAT- 11 2
2. Fluid level and stateAT- 5 1
3. Control linkage adjustmentAT- 2 3 4
4. Manual mode switchAT- 1 7 2
5. ATF pressure switch 1 and ATF pressure switch 3AT- 1 7 8,
AT- 1 8 0
6. CAN communication lineAT- 1 0 5
7. Control valve with TCMAT- 2 4 2
OFF vehicle8. Front brake (brake band)AT- 2 8 69. Input clutchAT- 3 0 8
49Does not change M3
→ M
2 .ON vehicle1. PNP switchAT- 11 2
2. Fluid level and stateAT- 5 1
3. Control linkage adjustmentAT- 2 3 4
4. Manual mode switchAT- 1 7 2
5. ATF pressure switch 6AT- 1 8 4
6. CAN communication lineAT- 1 0 5
7. Control valve with TCMAT- 2 4 2
OFF vehicle8. Front brake (brake band)AT- 2 8 69. Input clutchAT- 3 0 8
10. High and low reverse clutchAT- 3 2 0
50Does not change M2
→ M
1 .ON vehicle1. PNP switchAT- 11 2
2. Fluid level and stateAT- 5 1
3. Control linkage adjustmentAT- 2 3 4
4. Manual mode switchAT- 1 7 2
5. ATF pressure switch 5AT- 1 8 2
6. CAN communication lineAT- 1 0 5
7. Control valve with TCMAT- 2 4 2
OFF vehicle8. Input clutchAT- 3 0 89. High and low reverse clutchAT- 3 2 0
10. Direct clutchAT- 3 2 3
51Can not be changed
to manual mode.
Refer to AT-222,
"Cannot Be Changed
to Manual Mode" .ON vehicle1. Manual mode switchAT- 1 7 2
2. Turbine revolution sensorAT- 1 4 3
3. CAN communication lineAT- 1 0 5
52 OthersShift point is high in D
position.ON vehicle1. Vehicle speed sensor A/T and vehicle speed sensor MTRAT- 11 6
,
AT- 1 4 5
2. Accelerator pedal position sensorAT- 1 3 6
3. CAN communication lineAT- 1 0 5
4. ATF temperature sensorAT- 1 3 9
5. Control valve with TCMAT- 2 4 2
No. Items Symptom Condition Diagnostic ItemReference
page

TROUBLE DIAGNOSIS
AT-85
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Revision: 2004 November 2004 FX35/FX45
53
OthersShift point is low in D
position.ON vehicle1. Vehicle speed sensor A/T and vehicle speed sensor MTRAT- 11 6
,
AT-145
2. Accelerator pedal position sensorAT-136
3. CAN communication lineAT-105
4. Control valve with TCMAT-242
54Judder occurs during
lock-up.ON vehicle1. Fluid level and stateAT- 5 1
2. Engine speed signalAT-121
3. Turbine revolution sensorAT-143
4. Vehicle speed sensor A/T and vehicle speed sensor MTRAT- 11 6,
AT-145
5. Accelerator pedal position sensorAT-136
6. CAN communication lineAT-105
7. Torque converter clutch solenoid valveAT-123
8. Control valve with TCMAT-242
OFF vehicle 9. Torque converterAT-286
55Strange noise in R
position.ON vehicle1. Fluid level and stateAT- 5 1
2. Engine speed signalAT-121
3. CAN communication lineAT-105
4. Control valve with TCMAT-242
OFF vehicle5. Torque converterAT-286
6. Oil pump assemblyAT-303
7. Gear systemAT-274
8. High and low reverse clutchAT-320
9. Reverse brakeAT-286
56Strange noise in N
position.ON vehicle1. Fluid level and stateAT- 5 1
2. Engine speed signalAT-121
3. CAN communication lineAT-105
4. Control valve with TCMAT-242
OFF vehicle5. Torque converterAT-2866. Oil pump assemblyAT-303
7. Gear systemAT-274
No. Items Symptom Condition Diagnostic ItemReference
page

TROUBLE DIAGNOSIS
AT-87
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Revision: 2004 November 2004 FX35/FX4561
OthersEngine brake does
not work M3 → M2 .ON vehicle1. PNP switchAT- 11 2
2. Fluid level and stateAT- 5 1
3. Control linkage adjustmentAT-234
4. Manual mode switchAT-172
5. ATF pressure switch 6AT-184
6. CAN communication lineAT-105
7. Control valve with TCMAT-242
OFF vehicle8. Front brake (brake band)AT-2869. Input clutchAT-308
10. High and low reverse clutchAT-320
62Engine brake does
not work M2 → M1 .ON vehicle1. PNP switchAT- 11 2
2. Fluid level and stateAT- 5 1
3. Control linkage adjustmentAT-234
4. Manual mode switchAT-172
5. ATF pressure switch 5AT-182
6. CAN communication lineAT-105
7. Control valve with TCMAT-242
OFF vehicle8. Input clutchAT-3089. High and low reverse clutchAT-320
10. Direct clutchAT-323
63 Maximum speed low.ON vehicle1. Fluid level and stateAT- 5 1
2. Line pressure testAT- 5 2
3. Accelerator pedal position sensorAT-136
4. CAN communication lineAT-105
5. Direct clutch solenoid valveAT-160
6. Control valve with TCMAT-242
OFF vehicle7. Torque converter AT-286
8. Oil pump assemblyAT-303
9. Input clutchAT-308
10. Gear systemAT-274
11. High and low reverse clutchAT-320
12. Direct clutchAT-323
13. Forward one-way clutch (Parts behind drum support is
impossible to perform inspection by disassembly. Refer to
AT- 1 7 , "
Cross-Sectional View (2WD Models)" or AT- 1 8 ,
"Cross-Sectional View (AWD Models)" )AT-286
14. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to AT-17,
"Cross-Sectional View (2WD Models)" or AT-18, "Cross-
Sectional View (AWD Models)" )AT-286
No. Items Symptom Condition Diagnostic ItemReference
page

TROUBLE DIAGNOSIS
AT-89
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Revision: 2004 November 2004 FX35/FX45
68
OthersEngine does not start
in N or P position.
Refer to AT-193, "Engine Cannot Be
Started In “P” or “N”
Position" .ON vehicle1. Ignition switch and starterPG-3
, SC-
10
2. Control linkage adjustmentAT-234
3. PNP switchAT- 11 2
69Engine starts in posi-
tions other than N or
P.ON vehicle1. Ignition switch and starterPG-3
, SC-
10
2. Control linkage adjustmentAT-234
3. PNP switchAT- 11 2
70 Engine stall.ON vehicle1. Fluid level and stateAT- 5 1
2. Engine speed signalAT-121
3. Turbine revolution sensorAT-143
4. Torque converter clutch solenoid valveAT-123
5. CAN communication lineAT-105
6. Control valve with TCMAT-242
OFF vehicle 7. Torque converterAT-286
71Engine stalls when
select lever shifted N
→ D, R.ON vehicle1. Fluid level and stateAT- 5 1
2. Engine speed signalAT-121
3. Turbine revolution sensorAT-143
4. Torque converter clutch solenoid valveAT-123
5. CAN communication lineAT-105
6. Control valve with TCMAT-242
OFF vehicle 7. Torque converterAT-286
72Engine speed does
not return to idle.
Refer to AT-221,
"Engine Speed Does
Not Return To Idle" .ON vehicle1. Fluid level and stateAT- 5 1
2. ATF pressure switch 5 and direct clutch solenoid valveAT-182,
AT-160

3. ATF pressure switch 1 and front brake solenoid valveAT-178
,
AT-156
4. Accelerator pedal position sensorAT-136
5. Vehicle speed sensor A/T and vehicle speed sensor MTRAT- 11 6,
AT-145
6. CAN communication lineAT-105
7. Control valve with TCMAT-242
OFF vehicle8. Front brake (brake band)AT-2869. Direct clutchAT-323
No. Items Symptom Condition Diagnostic ItemReference
page

TROUBLE DIAGNOSIS
AT-91
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Revision: 2004 November 2004 FX35/FX45
CONSULT-IIACS007AI
After performing AT- 1 0 3 , "Diagnostic Procedure Without CONSULT-II" , place check marks for results on the
AT- 4 6 , "
DIAGNOSTIC WORKSHEET" . Reference pages are provided following the items.
NOTICE:
1. The CONSULT-II electrically displays shift timing and lock-up timing (that is operation timing of each sole-
noid).
Check for time difference between actual shift timing and the CONSULT-II display. If the difference is
noticeable, mechanical parts (except solenoids, sensors, etc.) may be malfunctioning. Check mechanical
parts using applicable diagnostic procedures.
2. Shift schedule (which implies gear position) displayed on CONSULT-II and that indicated in Service Man-
ual may differ slightly. This occurs because of the following reasons:
–Actual shift schedule has more or less tolerance or allowance,
–Shift schedule indicated in Service Manual refers to the point where shifts start, and
–Gear position displayed on CONSULT-II indicates the point where shifts are completed.
3. Display of solenoid valves on CONSULT-II changes at the start of shifting, while gear position is displayed
upon completion of shifting (which is computed by TCM).
4. Additional CONSULT-II information can be found in the Operation Manual supplied with the CONSULT-II
unit.
FUNCTION
CONSULT-II REFERENCE VALUE
Diagnostic test mode Function Reference page
Self-diagnostic results Self-diagnostic results can be read and erased quickly.AT- 9 4
Data monitor Input/Output data in the ECU can be read.AT- 9 7
CAN diagnostic support
monitorThe results of transmit/receive diagnosis of CAN communication can be read. —
Function testConducted by CONSULT-II instead of a technician to determine whether each system
is “OK” or “NG”.—
DTC work support Select the operating condition to confirm Diagnosis Trouble Codes.AT-100
ECU part number ECU part number can be read. —
Item name Condition Display value (Approx.)
ATF TEMP SE 1
0°C (32° F) - 20°C (68°F) - 80°C (176°F)2.2 - 1.8 - 0.6 V
ATF TEMP SE 22.2 - 1.7 - 0.45 V
TCC SOLENOIDWhen perform slip lock-up 0.2 - 0.4 A
When perform lock-up 0.4 - 0.6 A
SLCT LVR POSISelector lever in “N”,“P” position. N/P
Selector lever in “R” position. R
Selector lever in “D” position. D
VHCL/S SE·A/T During drivingApproximately matches the speedome-
ter reading.
ENGINE SPEED Engine runningClosely matches the tachometer read-
ing.
LINE PRES SOL During driving 0.2 - 0.6 A
TURBINE REV During driving (lock-up ON)Approximately matches the engine
speed.
VHCL/S SE·MTR During drivingApproximately matches the speedome-
ter reading.
ATF PRES SW 1Front brake engaged. Refer to AT- 2 0
.ON
Front brake disengaged. Refer to AT- 2 0
.OFF

TROUBLE DIAGNOSIS
AT-97
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Revision: 2004 November 2004 FX35/FX45
How to Erase Self-diagnostic Results
1. Perform “CONSULT-II SETTING PROCEDURE” Refer to AT- 9 3 ,
"CONSULT-II SETTING PROCEDURE" .
2. Touch “SELF-DIAG RESULTS”.
3. Touch ”ERASE”. (The self-diagnostic results will be erased.)
DATA MONITOR MODE
Operation Procedure
1. Perform “CONSULT-II SETTING PROCEDURE” Refer to AT- 9 3 ,
"CONSULT-II SETTING PROCEDURE" .
2. Touch “DATA MONITOR”.
NOTE:
When malfunction is detected, CONSULT-II performs
“REAL-TIME DIAGNOSIS”. Also, any malfunction detected
while in this mode will be displayed at real time.
Display Items List
X: Standard, —: Not applicable
SCIA5304E
PCIA0061E
SCIA5304E
Monitored item (Unit)Monitor Item Selection
Remarks ECU
INPUT
SIGNALSMAIN SIG-
NALSSELEC-
TION
FROM
MENU
VHCL/S SE·A/T (km/h) X X X Revolution sensor
VHCL/S SE·MTR (km/h) X — X
ACCELE POSI (0.0/8) X — X Accelerator pedal position signal
THROTTLE POSI (0.0/8) X X XDegree of opening for accelerator recognized by
the TCM
For fail-safe operation, the specific value used
for control is displayed.
CLSD THL POS (ON-OFF display) X — X
Signal input with CAN communications
W/O THL POS (ON-OFF display) X — X
BRAKE SW (ON-OFF display) X — X Stop lamp switch

DTC P1730 A/T INTERLOCK
AT-147
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Revision: 2004 November 2004 FX35/FX45
DTC P1730 A/T INTERLOCKPFP:00000
DescriptionACS007DB

Fail-safe function to detect interlock conditions.
On Board Diagnosis LogicACS007DC

This is an OBD-II self-diagnostic item.

Diagnostic trouble code “A/T INTERLOCK” with CONSULT-II or P1730 without CONSULT-II is detected
when TCM does not receive the proper voltage signal from the sensor and switch.

TCM monitors and compares gear position and conditions of each ATF pressure switch when gear is
steady.
Possible CauseACS007DD

Harness or connectors
(Solenoid and switch circuit is open or shorted.)

Low coast brake solenoid valve

ATF pressure switch 2
DTC Confirmation ProcedureACS007DE
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch “OFF”
and wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch “ON”. (Do not start engine.)
2. Select “DATA MONITOR” mode for “A/T” with CONSULT-II.
3. Start engine.
4. Drive vehicle and maintain the following conditions for at least 2
consecutive seconds.
Selector lever: “D” position
5. If DTC is detected, go to AT- 1 4 8 , "
Diagnostic Procedure" .
WITH GST
Follow the procedure “With CONSULT-II”.
Judgement of A/T InterlockACS007DF
When A/T Interlock is judged to be malfunctioning, the vehicle should be fixed in 2nd gear, and should be set
in a condition in which it can travel.
When one of the following fastening patterns is detected, the fail-safe function in correspondence with the indi-
vidual pattern should be performed.
SAT014K

AT-150
DTC P1731 A/T 1ST ENGINE BRAKING
Revision: 2004 November 2004 FX35/FX45
DTC P1731 A/T 1ST ENGINE BRAKINGPFP:00000
DescriptionACS007DH
Fail-safe function to prevent sudden decrease in speed by engine brake other than at M1 position.
CONSULT-II Reference ValueACS007DI
On Board Diagnosis LogicACS007DJ

This is not an OBD-II self-diagnostic item.

Diagnostic trouble code “A/T 1ST E/BRAKING” with CONSULT-II or 13th judgement flicker without CON-
SULT-II is detected under the following conditions.
–When TCM does not receive the proper voltage signal from the sensor.
–When TCM monitors each ATF pressure switch and solenoid monitor value, and detects as error when
engine brake of 1st gear acts other than at M1 position.
Possible CauseACS007DK

Harness or connectors
(Sensor circuit is open or shorted.)

Low coast brake solenoid valve

ATF pressure switch 2
DTC Confirmation ProcedureACS007DL
NOTE:
If “DTC Confirmation Procedure” has been previously preformed, always turn ignition switch “OFF”
and wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch “ON”. (Do not start engine.)
2. Select “DATA MONITOR” mode for “A/T” with CONSULT-II.
3. Start engine.
4. Drive vehicle and maintain the following conditions for at least 2
consecutive seconds.
ENGINE SPEED: 1,200 rpm
Selector lever: “M” position
Gear position: 1st gear
5. If DTC is detected, go to AT- 1 5 1 , "
Diagnostic Procedure" .
Item name Condition Display value
ON OFF SOLLow coast brake engaged. Refer to AT- 2 0
.ON
Low coast brake disengaged. Refer to AT- 2 0
.OFF
ATF PRES SW 2Low coast brake engaged. Refer to AT- 2 0
.ON
Low coast brake disengaged. Refer to AT- 2 0
.OFF
SAT014K