2004 INFINITI FX35 Service Manual

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Page 265 of 4449

INFINITI FX35 2004 Service Manual AT-188
TROUBLE DIAGNOSIS FOR SYMPTOMS
Revision: 2004 November 2004 FX35/FX45
TROUBLE DIAGNOSIS FOR SYMPTOMSPFP:00007
Wiring Diagram — AT — NONDTCACS007GC
TCWM0254E

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INFINITI FX35 2004 Service Manual TROUBLE DIAGNOSIS FOR SYMPTOMS
AT-189
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Revision: 2004 November 2004 FX35/FX45
TCWM0255E

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INFINITI FX35 2004 Service Manual AT-190
TROUBLE DIAGNOSIS FOR SYMPTOMS
Revision: 2004 November 2004 FX35/FX45
TCWM0256E

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INFINITI FX35 2004 Service Manual TROUBLE DIAGNOSIS FOR SYMPTOMS
AT-191
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Revision: 2004 November 2004 FX35/FX45
TCM terminals and data are reference value. Measured between each terminal and ground.
A/T CHECK

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INFINITI FX35 2004 Service Manual AT-192
TROUBLE DIAGNOSIS FOR SYMPTOMS
Revision: 2004 November 2004 FX35/FX45
3. DETECT MALFUNCTIONING ITEM
Check the following items:
Harness for short or open between battery and A/T assembly harnes

Page 270 of 4449

INFINITI FX35 2004 Service Manual TROUBLE DIAGNOSIS FOR SYMPTOMS
AT-193
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Revision: 2004 November 2004 FX35/FX45
Engine Cannot Be Started In “P” or “N” PositionACS007GE
SYMPTOM:
Engine cannot be starte

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INFINITI FX35 2004 Service Manual AT-194
TROUBLE DIAGNOSIS FOR SYMPTOMS
Revision: 2004 November 2004 FX35/FX45
3. CHECK PARKING COMPONENTS
Check parking components. Refer to AT- 2 5 3 , "
Parking Components (2WD Models Only)" (2WD m

Page 272 of 4449

INFINITI FX35 2004 Service Manual TROUBLE DIAGNOSIS FOR SYMPTOMS
AT-195
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Revision: 2004 November 2004 FX35/FX45
4. CHECK A/T FLUID CONDITION
1. Remove oil pan. Refer to AT- 2 4 2 , "
Control Valve with TCM an

TROUBLE DIAGNOSIS FOR SYMPTOMS
AT-195
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Revision: 2004 November 2004 FX35/FX45
4. CHECK A/T FLUID CONDITION
1. Remove oil pan. Refer to AT- 2 4 2 , "
Control Valve with TCM and A/T Fluid Temperature Sensor 2" .
2. Check A/T fluid condition. Refer to AT- 5 1 , "
Fluid Condition
Check" .
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- 6 5 , "
Symp-
tom Chart" (Symptom No.67).
5. CHECK SYMPTOM
Check again. Refer to AT- 5 5 , "
Check at Idle" .
OK or NG
OK >>INSPECTION END
NG >> GO TO 6.
6. CHECK TCM
1. Check TCM input/output signals. Refer to AT- 9 0 , "
TCM Input/Output Signal Reference Values" .
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)ACS007GH
SYMPTOM:
A noticeable shock occurs when the selector lever is shifted from the “N” to “D” position.
DIAGNOSTIC PROCEDURE
1. CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis. Refer to AT- 9 4 , "
SELF-DIAGNOSTIC RESULT MODE" .
Do the self-diagnostic results indicate A/T fluid temperature sensor, engine speed signal, accelerator pedal
position sensor, ATF pressure switch 1, front brake solenoid valve, CAN communication line?
YES >> Check the malfunctioning system. Refer to AT- 1 3 9 , "DTC P1710 A/T FLUID TEMPERATURE
SENSOR CIRCUIT" , AT- 1 2 1 , "DTC P0725 ENGINE SPEED SIGNAL" , EC-555, "DTC P2122,
P2123 APP SENSOR" (for VQ35DE) or EC-1225, "DTC P2122, P2123 APP SENSOR" (for
VK45DE), EC-562, "
DTC P2127, P2128 APP SENSOR" (for VQ35DE) or EC-1232, "DTC P2127,
P2128 APP SENSOR" (for VK45DE), EC-576, "DTC P2138 APP SENSOR" (for VQ35DE) or
EC-1246, "
DTC P2138 APP SENSOR" (for VK45DE), AT- 1 3 6 , "DTC P1705 THROTTLE POSI-
TION SENSOR" , AT- 1 7 8 , "DTC P1841 ATF PRESSURE SWITCH 1" , AT- 1 5 6 , "DTC P1757
FRONT BRAKE SOLENOID VALVE" , AT- 1 0 5 , "DTC U1000 CAN COMMUNICATION LINE" .
NO >> GO TO 2.
2. ENGINE IDLE SPEED
Check the engine idle speed. Refer to EC-37, "
Idle Speed and Ignition Timing Check" (for VQ35DE) or EC-
685, "Idle Speed and Ignition Timing Check" (for VK45DE).
OK or NG
OK >> GO TO 3.
NG >> Repair.
SCIA5199E

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