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C TRANSMISSION/TRANSAXLE

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AUTOMATIC TRANSMISSION

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CONTENTSINDEX FOR DTC ....................................................... 5 . Alphabetical Index ................................................... 5 . DTC No. Index ........................................................ 6 . PRECAUTIONS ......................................................... 7 . Precautions for Supplemental Restraint System (SRS) AIR BAG and SEAT BELT PRE-TENSIONER ................................................................. 7 . Precautions for On Board Diagnostic (OBD) System of A/T and Engine ................................................... 7 . Precautions ............................................................. 8 . Service Notice or Precautions ................................. 9 . PREPARATION ........................................................ 10 . Special Service Tools ............................................ 10 . Commercial Service Tools ......................................11 . A/T FLUID ................................................................ 12 . Checking the A/T Fluid (ATF) ................................ 12 . Changing the A/T Fluid (ATF) ............................... 14 . A/T Fluid Cooler Cleaning ..................................... 15 . A/T CONTROL SYSTEM ......................................... 18 . Cross-Sectional View ............................................ 18 . Shift Mechanism .................................................... 20 . TCM Function ........................................................ 31 . CAN Communication ............................................. 32 . Input/Output Signal of TCM ................................... 32 . Line Pressure Control ........................................... 33 . Shift Control .......................................................... 34 . Lock-up Control ..................................................... 35 . Engine Brake Control ............................................ 36 . Control Valve ......................................................... 37 . ON BOARD DIAGNOSTIC (OBD) SYSTEM ........... 39 . Introduction ........................................................... 39 . OBD-II Function for A/T System ............................ 39 . One or Two Trip Detection Logic of OBD-II ........... 39 . OBD-II Diagnostic Trouble Code (DTC) ................ 39 . Malfunction Indicator Lamp (MIL) .......................... 42 . TROUBLE DIAGNOSIS ........................................... 43 . DTC Inspection Priority Chart ............................... 43 . Fail-Safe ................................................................ 43 . How To Perform Trouble Diagnosis For Quick and Accurate Repair .................................................... 45 . A/T Electrical Parts Location ................................. 50 . Schematic .............................................................. 51 . Inspections Before Trouble Diagnosis ................... 52 . Check Before Engine is Started ............................. 56 . Check at Idle .......................................................... 56 . Cruise Test - Part 1 ................................................ 57 . Cruise Test - Part 2 ................................................ 59 . Cruise Test - Part 3 ................................................ 60 . Vehicle Speed at Which Gear Shifting Occurs ...... 62 . Vehicle Speed at Which Lock-up Occurs/Releases 62 ... Symptom Chart ...................................................... 63 . TCM Input/Output Signal Reference Values .......... 85 . CONSULT-II Function (A/T) ................................... 86 . Diagnostic Procedure Without CONSULT-II .......... 95 . DTC U1000 CAN COMMUNICATION LINE ............. 97 . Description ............................................................. 97 . On Board Diagnosis Logic ..................................... 97 . Possible Cause ...................................................... 97 . DTC Confirmation Procedure ................................ 97 . Wiring Diagram AT CAN ............................... 98 . Diagnostic Procedure ............................................ 99 . DTC P0615 START SIGNAL CIRCUIT .................. 100 . Description ........................................................... 100 . CONSULT-II Reference Value ............................. 100 . On Board Diagnosis Logic ................................... 100 . Possible Cause .................................................... 100 . DTC Confirmation Procedure .............................. 100 . Wiring Diagram AT STSIG ......................... 101 . Diagnostic Procedure .......................................... 102 . DTC P0700 TCM .................................................... 104 . Description ........................................................... 104 . On Board Diagnosis Logic ................................... 104 . Possible Cause .................................................... 104 . DTC Confirmation Procedure .............................. 104 . Diagnostic Procedure .......................................... 104 . DTC P0705 PARK/NEUTRAL POSITION SWITCH. 105 Description ........................................................... 105 . CONSULT-II Reference Value ............................. 105 . On Board Diagnosis Logic ................................... 105 . Possible Cause .................................................... 105 .

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Revision: September 2006

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2007 Pathfinder

DTC Confirmation Procedure .............................. 105 . Wiring Diagram AT PNP/SW ...................... 106 . Diagnostic Procedure .......................................... 107 . DTC P0717 TURBINE REVOLUTION SENSOR ... 109 . Description ........................................................... 109 . CONSULT-II Reference Value ............................. 109 . On Board Diagnosis Logic ................................... 109 . Possible Cause .................................................... 109 . DTC Confirmation Procedure .............................. 109 . Diagnostic Procedure .......................................... 110 . DTC P0720 VEHICLE SPEED SENSOR A/T (REVOLUTION SENSOR) .............................................. 111 . Description ............................................................111 . CONSULT-II Reference Value ..............................111 . On Board Diagnosis Logic ....................................111 . Possible Cause .....................................................111 . DTC Confirmation Procedure ...............................111 . Wiring Diagram AT VSSA/T ........................ 113 . Diagnostic Procedure .......................................... 114 . DTC P0725 ENGINE SPEED SIGNAL .................. 116 . Description ........................................................... 116 . CONSULT-II Reference Value ............................. 116 . On Board Diagnosis Logic ................................... 116 . Possible Cause .................................................... 116 . DTC Confirmation Procedure .............................. 116 . Diagnostic Procedure .......................................... 117 . DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE ................................................ 118 . Description ........................................................... 118 . CONSULT-II Reference Value ............................. 118 . On Board Diagnosis Logic ................................... 118 . Possible Cause .................................................... 118 . DTC Confirmation Procedure .............................. 118 . Diagnostic Procedure .......................................... 119 . DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP). 120 Description ........................................................... 120 . CONSULT-II Reference Value ............................. 120 . On Board Diagnosis Logic ................................... 120 . Possible Cause .................................................... 120 . DTC Confirmation Procedure .............................. 120 . Diagnostic Procedure .......................................... 121 . DTC P0745 LINE PRESSURE SOLENOID VALVE. 122 Description ........................................................... 122 . CONSULT-II Reference Value ............................. 122 . On Board Diagnosis Logic ................................... 122 . Possible Cause .................................................... 122 . DTC Confirmation Procedure .............................. 122 . Diagnostic Procedure .......................................... 123 . DTC P1705 THROTTLE POSITION SENSOR ...... 124 . Description ........................................................... 124 . CONSULT-II Reference Value ............................. 124 . On Board Diagnosis Logic ................................... 124 . Possible Cause .................................................... 124 . DTC Confirmation Procedure .............................. 124 . Diagnostic Procedure .......................................... 125 . DTC P1710 A/T FLUID TEMPERATURE SENSOR CIRCUIT ................................................................. 127 . Description ........................................................... 127 . CONSULT-II Reference Value ............................. 127 . Revision: September 2006

On Board Diagnosis Logic ................................... 127 . Possible Cause .................................................... 127 . DTC Confirmation Procedure ............................... 127 . Wiring Diagram AT FTS .............................. 128 . Diagnostic Procedure ........................................... 129 . Component Inspection ....