2008 INFINITI FX35 sensor

AT-154
< SERVICE INFORMATION >
DTC P1774 LOW COAST BRAKE SOLENOID VALVE FUNCTION
With CONSULT-III
1. Start engine.
2. Select “SELECTION FROM MENU” in “DATA MONI TOR” mode for “TRANSMISSION” with CONSULT-III.
3. Drive vehicle in the manual mode (1st or 2nd gear), and confirm the ON/OFF actuation of the “ATF PRES
SW 2” and “ON OFF SOL”.
OK or NG
OK >> GO TO 4.
NG >> GO TO 2.
2.CHECK TCM POWER SUPPLY AND GROUND CIRCUIT
Check TCM power supply and ground circuit. Refer to AT-160
.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace damaged parts.
3.DETECT MALFUNCTIONING ITEM
Check A/T assembly harness connector pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> Replace the control valve with TCM. Refer to AT-215, "Control Valve with TCM and A/T Fluid Tem-
perature Sensor 2".
NG >> Repair or replace damaged parts.
4.CHECK DTC
Perform AT-153, "
DTC Confirmation Procedure".
OK or NG
OK >> INSPECTION END
NG >> GO TO 2.
Item name Condition Display value
ON OFF SOL Low coast brake engaged. Refer to
AT- 1 8
.ON
Low coast brake disengaged. Refer to AT- 1 8
.OFF
ATF PRES SW 2 Low coast brake engaged. Refer to
AT- 1 8
.ON
Low coast brake disengaged. Refer to AT- 1 8
.OFF
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

DTC P1815 MANUAL MODE SWITCHAT-159
< SERVICE INFORMATION >
DE
F
G H
I
J
K L
M A
B
AT
N
O P
5.CHECK TCM POWER SUPPLY AND GROUND CIRCUIT
Check TCM power supply and ground circuit. Refer to AT-160
.
OK or NG
OK >> GO TO 6.
NG >> Repair or replace damaged parts.
6.DETECT MALFUNCTIONING ITEM
Check A/T assembly harness connector pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> Replace the control valve with TCM. Refer to AT-215, "Control Valve with TCM and A/T Fluid Tem-
perature Sensor 2".
NG >> Repair or replace damaged parts.
Component InspectionINFOID:0000000001327326
MANUAL MODE SWITCH
Check continuity between terminals.
Item Position Connector Terminal Continuity
Manual mode
select switch Auto
M67 9 - 10
Ye s
Manual 6 - 9
Manual mode
position select
switch UP 8 - 9
DOWN 7 - 9
SCIA2112E
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AT-162
< SERVICE INFORMATION >
MAIN POWER SUPPLY AND GROUND CIRCUIT
NG >> Repair or replace damaged parts.
4.CHECK TCM GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect A/T assembly harness connector.
3. Check continuity between A/T assembly harness connector F44 terminals and ground.
If OK, check harness for short to ground and short to power.
OK or NG
OK >> GO TO 5.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
5.DETECT MALFUNCTIONING ITEM
Check A/T assembly harness connector pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> GO TO 6.
NG >> Repair or replace damaged parts.
6.PERFORM SELF-DIAGNOSIS
Perform self-diagnosis.
OK or NG
OK >> INSPECTION END
NG-1 >> Self-diagnosis does not activate: GO TO 7.
NG-2 >> DTC is displayed: Check the malfunctioning system. Refer to AT-84, "
CONSULT-III Function
(TRANSMISSION)".
7.CHECK TERMINAL CORD ASSEMBLY
1. Remove control valve with TCM. Refer to AT-215, "
Control Valve with TCM and A/T Fluid Temperature
Sensor 2".
2. Disconnect A/T assembly harness connector and TCM connector.
3. Check continuity between A/T assembly harness connector ter- minals and TCM connector terminals.Continuity should exist.
SCIA2106E
Item Connector Terminal Continuity
A/T assembly harness con-
nector F44 1
Ye s
TCM connector F502 9
A/T assembly harness con-
nector F44 2
Ye s
TCM connector F502 10
A/T assembly harness con-
nector F44 6
Ye s
TCM connector F502 4
SCIA5464E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

MAIN POWER SUPPLY AND GROUND CIRCUITAT-163
< SERVICE INFORMATION >
DE
F
G H
I
J
K L
M A
B
AT
N
O P
4. Check continuity between A/T assembly harness connector ter- minals and TCM connector terminals.
5. If OK, check harness for short to ground and short to power.
OK or NG
OK >> Replace the control valve with TCM. Refer to AT-215, "Control Valve with TCM and A/T Fluid Tem-
perature Sensor 2".
NG >> Replace open circuit or short to ground and short to power in harness or connectors.
Item Connector Terminal Continuity
A/T assembly harness con-
nector F44 5
Ye s
TCM connector F504 21
A/T assembly harness con-
nector F44 10
Ye s
TCM connector F504 22
SCIA5465E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

TROUBLE DIAGNOSIS FOR SYMPTOMSAT-171
< SERVICE INFORMATION >
DE
F
G H
I
J
K L
M A
B
AT
N
O P
Check the A/T position. Refer to AT-207, "Checking of A/T Position".
OK or NG
OK >> GO TO 3.
NG >> Adjust A/T position. Refer to AT-207, "
Adjustment of A/T
Position".
3.CHECK STARTING SYSTEM
Check starting system. Refer to SC-8
.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.
In "P" Position, Vehicle Moves When PushedINFOID:0000000001327363
SYMPTOM:
Even though the selector lever is set in the “P” position, the parking mechanism is not actuated,
allowing the vehicle to be moved when it is pushed.
DIAGNOSTIC PROCEDURE
1.CHECK A/T POSITION
Check the A/T position. Refer to AT-207, "
Checking of A/T Position".
OK or NG
OK >> GO TO 2.
NG >> Adjust A/T position. Refer to AT-207, "
Adjustment of A/T
Position".
2.CHECK PARKING COMPONENTS
Check parking components. Refer to AT-226, "
Parking Component (2WD Models Only)" (2WD models) or AT-
267, "Disassembly" (AWD models).
OK or NG
OK >> GO TO 3.
NG >> Repair or replace damaged parts.
3.CHECK A/T FLUID CONDITION
1. Remove oil pan. Refer to AT-215, "
Control Valve with TCM and A/T Fluid Temperature Sensor 2".
2. Check A/T fluid condition. Refer to AT-49, "
Inspections Before
Trouble Diagnosis".
OK or NG
OK >> INSPECTION END
NG >> Check the malfunction items. If any items are damaged, repair or replace damaged parts. Refer to AT-59, "
Symp-
tom Chart" (Symptom No.65).
SCIA2119E
SCIA2119E
SCIA5199E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
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AT-172
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS FOR SYMPTOMS
In "N" Position, Vehicle Moves
INFOID:0000000001327364
SYMPTOM:
Vehicle moves forward or backwar d when selecting “N” position.
DIAGNOSTIC PROCEDURE
1.CHECK PNP SWITCH CIRCUIT
With CONSULT-III
 Perform self-diagnosis.
Without CONSULT-III
 Perform self-diagnosis. Refer to AT-91, "
Diagnosis Procedure without CONSULT-III".
Do the self-diagnostic results indicate PNP switch?
YES >> Check the malfunctioning system. Refer to AT-102.
NO >> GO TO 2.
2.CHECK A/T POSITION
Check the A/T position. Refer to AT-207, "
Checking of A/T Position".
OK or NG
OK >> GO TO 3.
NG >> Adjust A/T position. Refer to AT-207, "
Adjustment of A/T
Position".
3.CHECK A/T FLUID LEVEL
Check A/T fluid level. Refer to AT- 11 , "
Checking A/T Fluid".
OK or NG
OK >> GO TO 4.
NG >> Refill ATF.
4.CHECK A/T FLUID CONDITION
1. Remove oil pan. Refer to AT-215, "
Control Valve with TCM and A/T Fluid Temperature Sensor 2".
2. Check A/T fluid condition. Refer to AT-49, "
Inspections Before
Trouble Diagnosis".
OK or NG
OK >> GO TO 5.
NG >> Check the malfunction items. If any items are damaged, repair or replace damaged parts. Refer to AT-59, "
Symp-
tom Chart" (Symptom No.67).
5.CHECK SYMPTOM
Check again. Refer to “CHECK AT IDLE”.
SCIA2119E
SAT638A
SCIA5199E
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AT-174
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS FOR SYMPTOMS
Check the A/T fluid level. Refer to AT- 11 , "Checking A/T Fluid".
OK or NG
OK >> GO TO 5.
NG >> Refill ATF.
5.CHECK LINE PRESSURE
Check line pressure at idle with selector lever in “D” position. Refer
to AT-49, "
Inspections Before Trouble Diagnosis".
OK or NG
OK >> GO TO 8.
NG-1 >> Line pressure high: GO TO 6.
NG-2 >> Line pressure low: GO TO 7.
6.DETECT MALFUNCTIONING ITEM
1. Check control valve with TCM. Refer to AT-215, "
Control Valve with TCM and A/T Fluid Temperature Sen-
sor 2".
2. Disassemble A/T. Refer to AT-267
.
3. Check the following.
- Oil pump assembly. Refer to AT-285, "
Oil Pump".
OK or NG
OK >> GO TO 8.
NG >> Repair or replace damaged parts.
7.DETECT MALFUNCTIONING ITEM
1. Check control valve with TCM. Refer to AT-215, "
Control Valve with TCM and A/T Fluid Temperature Sen-
sor 2".
2. Disassemble A/T. Refer to AT-267
.
3. Check the following.
- Oil pump assembly. Refer to AT-285, "
Oil Pump".
- Power train system. Refer to AT-267
.
- Transmission case. Refer to AT-267
.
OK or NG
OK >> GO TO 8.
NG >> Repair or replace damaged parts.
8.CHECK A/T FLUID CONDITION
1. Remove oil pan. Refer to AT-215, "
Control Valve with TCM and A/T Fluid Temperature Sensor 2".
SAT638A
SAT494G
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

TROUBLE DIAGNOSIS FOR SYMPTOMSAT-177
< SERVICE INFORMATION >
DE
F
G H
I
J
K L
M A
B
AT
N
O P
7.DETECT MALFUNCTIONING ITEM
1. Check control valve with TCM. Refer to AT-215, "
Control Valve with TCM and A/T Fluid Temperature Sen-
sor 2".
2. Disassemble A/T. Refer to AT-267
.
3. Check the following.
- Oil pump assembly. Refer to AT-285, "
Oil Pump".
OK or NG
OK >> GO TO 9.
NG >> Repair or replace damaged parts.
8.DETECT MALFUNCTIONING ITEM
1. Check control valve with TCM. Refer to AT-215, "
Control Valve with TCM and A/T Fluid Temperature Sen-
sor 2".
2. Disassemble A/T. Refer to AT-267
.
3. Check the following.
- Oil pump assembly. Refer to AT-285, "
Oil Pump".
- Power train system. Refer to AT-267
.
- Transmission case. Refer to AT-267
.
OK or NG
OK >> GO TO 9.
NG >> Repair or replace damaged parts.
9.CHECK A/T FLUID CONDITION
1. Remove oil pan. Refer to AT-215, "
Control Valve with TCM and A/T Fluid Temperature Sensor 2".
2. Check A/T fluid condition. Refer to AT-49, "
Inspections Before
Trouble Diagnosis".
OK or NG
OK >> GO TO 10.
NG >> GO TO 13.
10.DETECT MALFUNCTIONING ITEM
Check the malfunction items. If any items are dam aged, repair or replace damaged parts. Refer to AT-59,
"Symptom Chart" (Symptom No.43).
OK or NG
OK >> GO TO 11.
NG >> Repair or replace damaged parts.
11 .CHECK SYMPTOM
Check again. Refer to “CHECK AT IDLE”.
OK or NG
OK >> INSPECTION END
NG >> GO TO 12.
12.CHECK TCM
1. Check TCM input/output signals. Refer to AT-83, "
TCM Input/Output Signal Reference Value".
2. If NG, recheck A/T assembly harness connector terminals for damage or loose connection with harness
connector.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.
SCIA5199E
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3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C