check transmission fluid INFINITI FX35 2008 User Guide

DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE
AT-125
< SERVICE INFORMATION >
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2. Select “MAIN SIGNALS” in “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III.
3. Start engine.
4. Read out the value of “TCC SOLENOID” while driving.
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-124, "
DTC Confirmation Procedure".
OK or NG
OK >> INSPECTION END
NG >> GO TO 2.
Item name Condition Display value (Approx.)
TCC SOLENOID Slip lock-up is active 0.2 - 0.4 A
Lock-up is active 0.4 - 0.6 A
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DTC P1705 THROTTLE POSITION SENSORAT-131
< SERVICE INFORMATION >
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4. Select “SELF-DIAG RESULTS” mode for “T RANSMISSION” with CONSULT-III. Refer to AT-84, "CON-
SULT-III Function (TRANSMISSION)".
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
3.CHECK DTC WITH ECM
With CONSULT-III
1. Turn ignition switch ON.
2. Select “SELF-DIAG RESULTS” mode for “ENGINE” with CONSULT-III. Refer to EC-117, "
CONSULT-III
Function (ENGINE)" (for VQ35DE) or EC-695, "CONSULT-III Function (ENGINE)" (for VK45DE).
OK or NG
OK >> GO TO 4.
NG >> Check the DTC detected item. Refer to EC-117, "
CONSULT-III Function (ENGINE)" (for
VQ35DE) or EC-695, "
CONSULT-III Function (ENGINE)" (for VK45DE).
 If CAN communication line is detected, go to AT- 9 4
.
4.CHECK DTC
Perform AT-130, "
DTC Confirmation Procedure".
OK or NG
OK >> INSPECTION END
NG >> GO TO 5.
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.
Item name Condition Display value (Approx.)
ACCELE POSI Released accelerator pedal. 0.0/8
Fully depressed accelerator pedal. 8.0/8
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AT-132
< SERVICE INFORMATION >
DTC P1710 A/T FLUID TEMPERATURE SENSOR CIRCUIT
DTC P1710 A/T FLUID TEMPER ATURE SENSOR CIRCUIT
DescriptionINFOID:0000000001327233
The A/T fluid temperature sensor detects the A/ T fluid temperature and sends a signal to the TCM.
CONSULT-III Reference Value in Data Monitor ModeINFOID:0000000001327234
On Board Diagnosis LogicINFOID:0000000001327235
Diagnostic trouble code “P1710 (A/T), P0710 (ENGINE) ATF TEMP SEN/CIRC” with CONSULT-III or 10th
judgement flicker without CONSULT-III is detected w hen TCM receives an excessively low or high voltage
from the sensor.
Possible CauseINFOID:0000000001327236
 Harness or connectors (Sensor circuit is open or shorted.)
 A/T fluid temperature sensors 1 and/or 2
DTC Confirmation ProcedureINFOID:0000000001327237
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously performed, alw ays turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, perform the following proc edure to confirm the malfunction is eliminated.
WITH CONSULT-III
1. Turn ignition switch ON.
2. Select “SELECTION FROM MENU” in “DATA MONI TOR” mode for “TRANSMISSION” with CONSULT-III
and check monitor “VHCL/S SE-A/T”, “ACCELE POSI” and “SLCT LVR POSI”.
3. Touch “START”.
4. Start engine and maintain the following conditions for at least 10 minutes (Total). (It is not necessary to maintain continuously.)
VHCL/S SE-A/T: 10 km/h (6 MPH) or more
ACCELE POSI: More than 1.0/8
SLCT LVR POSI: “D” position
5. If DTC is detected, go to AT-133, "
Diagnosis Procedure".
WITH GST
Follow the procedure “WITH CONSULT-III”.
Item name Condition °C ( °F) Display value (Approx.)
ATF TEMP SE 1 0 (32) - 20 (68) - 80 (176) 3.3 - 2.7 - 0.9 V
ATF TEMP SE 2 3.3 - 2.5 - 0.7 V
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AT-134
< SERVICE INFORMATION >
DTC P1710 A/T FLUID TEMPERATURE SENSOR CIRCUIT
2. Select “ECU INPUT SIGNALS” in “DATA MONI TOR” mode for “TRANSMISSION” with CONSULT-III.
3. Read out the value of “ATF TEMP SE 1”.
OK or NG
OK >> GO TO 2.
NG >> GO TO 3.
2.CHECK A/T FLUID TEMPER ATURE SENSOR 2 SIGNAL
With CONSULT-III
1. Start engine.
2. Select “ECU INPUT SIGNALS” in “DATA MONI TOR” mode for “TRANSMISSION” with CONSULT-III.
3. Read out the value of “ATF TEMP SE 2”.
OK or NG
OK >> GO TO 8.
NG >> GO TO 5.
3.CHECK A/T FLUID TEMPERATURE SENSOR 1
Check A/T fluid temperature sensor 1. Refer to AT-135, "
Component Inspection".
OK or NG
OK >> GO TO 4.
NG >> Replace the control valve with TCM. Refer to AT-215, "
Control Valve with TCM and A/T Fluid Tem-
perature Sensor 2".
4.CHECK SUB-HARNESS
1. Disconnect park/neutral position switch connector and TCM connector.
2. Check continuity between park/neutral position switch connector terminals and TCM connector terminals.
3. If OK, check harness for short to ground and short to power.
OK or NG
OK >> GO TO 7.
NG >> Replace open circuit or short to ground and short to power in harness or connectors.
5.CHECK A/T FLUID TEMPERATURE SENSOR 2
Check A/T fluid temperature sensor 2. Refer to AT-135, "
Component Inspection".
OK or NG
OK >> GO TO 6.
NG >> Replace the A/T fluid temperature sensor 2. Refer to AT-215, "
Control Valve with TCM and A/T
Fluid Temperature Sensor 2".
6.CHECK TERMINAL CORD ASSEMBLY
1. Disconnect A/T fluid temperature sensor 2 connector and TCM connector.
Item name Condition °C ( °F) Display value (Approx.)
ATF TEMP SE 1 0 (32) - 20 (68) - 80 (176) 3.3 - 2.7 - 0.9 V
Item name Condition °C ( °F) Display value (Approx.)
ATF TEMP SE 2 0 (32) - 20 (68) - 80 (176) 3.3 - 2.5 - 0.7 V
Item Connector Terminal Continuity
Park/neutral position switch
connector F505 6
Ye s
TCM connector F503 19
Park/neutral position switch
connector F505 7
Ye s
TCM connector F503 18
SCIA5461E
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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
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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
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TROUBLE DIAGNOSIS FOR SYMPTOMSAT-173
< SERVICE INFORMATION >
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OK or NG
OK >> INSPECTION END
NG >> GO TO 6.
6.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.
Large Shock ("N" to "D" Position)INFOID:0000000001327365
SYMPTOM:
A noticeable shock occurs when the selector lever is shifted from “N” to “D” position.
DIAGNOSTIC PROCEDURE
1.CHECK SELF-DIAGNOSTIC RESULTS
With CONSULT-III
 Perform self-diagnosis.
Without CONSULT-III
 Perform self-diagnosis. Refer to AT-91, "
Diagnosis Procedure without CONSULT-III".
Is any malfunction detected by self-diagnostic results?
YES >> Check the malfuncti oning system. Refer to AT-84, "CONSULT-III Function (TRANSMISSION)",
AT-91, "
Diagnosis Procedure without CONSULT-III".
NO >> GO TO 2.
2.ENGINE IDLE SPEED
Check the engine idle speed. Refer to EC-84, "
Idle Speed and Ignition Timing Check" (for VQ35DE) or EC-
661, "Idle Speed and Ignition Timing Check" (for VK45DE).
OK or NG
OK >> GO TO 3.
NG >> Adjust engine idle speed. Refer to EC-84, "
Idle Speed and Ignition Timing Check" (for VQ35DE)
or EC-661, "
Idle Speed and Ignition Timing Check" (for VK45DE).
3.CHECK A/T POSITION
Check the A/T position. Refer to AT-207, "
Checking of A/T Position".
OK or NG
OK >> GO TO 4.
NG >> Adjust A/T position. Refer to AT-207, "
Adjustment of A/T
Position".
4.CHECK A/T FLUID LEVEL
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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
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TROUBLE DIAGNOSIS FOR SYMPTOMSAT-175
< SERVICE INFORMATION >
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2. Check A/T fluid condition. Refer to AT-49, "Inspections Before
Trouble Diagnosis".
OK or NG
OK >> GO TO 10.
NG >> GO TO 9.
9.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.1).
OK or NG
OK >> GO TO 10.
NG >> Repair or replace damaged parts.
10.CHECK SYMPTOM
Check again. Refer to “CHECK AT IDLE”.
OK or NG
OK >> INSPECTION END
NG >> GO TO 11.
11 .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.
Vehicle Does Not Creep Backward in "R" PositionINFOID:0000000001327366
SYMPTOM:
The vehicle does not creep in the “R” position. Or an extreme lack of acceleration is observed.
DIAGNOSTIC PROCEDURE
1.CHECK SELF-DIAGNOSTIC RESULTS
With CONSULT-III
 Perform self-diagnosis.
Without CONSULT-III
 Perform self-diagnosis. Refer to AT-91, "
Diagnosis Procedure without CONSULT-III".
Is any malfunction detected by self-diagnostic results?
YES >> Check the malfuncti oning system. Refer to AT-84, "CONSULT-III Function (TRANSMISSION)",
AT-91, "
Diagnosis Procedure without CONSULT-III".
NO >> GO TO 2.
2.CHECK A/T POSITION
SCIA5199E
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TROUBLE DIAGNOSIS FOR SYMPTOMSAT-177
< SERVICE INFORMATION >
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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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