Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Nissan Frontier 2006-2009 Approved Nissan Frontier 2006 AT
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C TRANSMISSION/TRANSAXLE
A
B
SECTION
AUTOMATIC TRANSMISSION AT
D
E
CONTENTS
INDEX FOR DTC ....................................................... 5 . A/T Electrical Parts Location ................................. 51 . F
Alphabetical Index ................................................... 5
. Schematic .............................................................. 52
.
DTC No. Index ........................................................ 6
. Inspections Before Trouble Diagnosis ................... 53 .
PRECAUTIONS ......................................................... 7 . Check Before Engine is Started ............................. 57 . G
Precautions for Supplemental Restraint System Check at Idle .......................................................... 57
.
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- Cruise Test - Part 1 ................................................ 58
.
SIONER" ................................................................. 7
. Cruise Test - Part 2 ................................................ 60
.
H
Precautions for On Board Diagnostic (OBD) System Cruise Test - Part 3 ................................................ 61
.
of A/T and Engine ................................................... 7. Vehicle Speed at Which Gear Shifting Occurs ...... 62 .
Precautions ............................................................. 8
. Vehicle Speed at Which Lock-up Occurs/Releases 63 ...
Service Notice or Precautions ................................. 9 . Symptom Chart ...................................................... 64
. I
PREPARATION ........................................................ 10 . TCM Input/Output Signal Reference Values .......... 86 .
Special Service Tools ............................................ 10 . CONSULT-II Function (A/T) ................................... 87 .
Commercial Service Tools ..................................... 12 . Diagnostic Procedure Without CONSULT-II ........ 101 . J
A/T FLUID ................................................................ 13
. DTC U1000 CAN COMMUNICATION LINE ........... 103 .
Checking the Automatic Transmission Fluid (ATF) 13 ... Description ........................................................... 103
.
Changing the Automatic Transmission Fluid (ATF) 14 ... On Board Diagnosis Logic ................................... 103 .
K
A/T Fluid Cooler Cleaning ..................................... 15 . Possible Cause .................................................... 103
.
A/T CONTROL SYSTEM ......................................... 19 . DTC Confirmation Procedure .............................. 103 .
Cross-Sectional View ............................................ 19 . Wiring Diagram -- AT -- CAN ............................. 104 .
Shift Mechanism .................................................... 21. Diagnostic Procedure .......................................... 105 . L
TCM Function ........................................................ 32
. DTC P0615 START SIGNAL CIRCUIT .................. 106 .
CAN Communication ............................................. 33 . Description ........................................................... 106
.
Input/Output Signal of TCM ................................... 33 . CONSULT-II Reference Value ............................. 106 . M
Line Pressure Control ........................................... 34 . On Board Diagnosis Logic ................................... 106 .
Shift Control .......................................................... 35
. Possible Cause .................................................... 106
.
Lock-up Control ..................................................... 36
. DTC Confirmation Procedure .............................. 106 .
Engine Brake Control ............................................ 37 . Wiring Diagram -- AT -- STSIG ......................... 107 .
Control Valve ......................................................... 38
. Diagnostic Procedure .......................................... 108 .
ON BOARD DIAGNOSTIC (OBD) SYSTEM ........... 40 . DTC P0700 TCM .................................................... 110 .
Introduction ........................................................... 40
. Description ........................................................... 110
.
OBD-II Function for A/T System ............................ 40 . On Board Diagnosis Logic ................................... 110 .
One or Two Trip Detection Logic of OBD-II ........... 40 . Possible Cause .................................................... 110
.
OBD-II Diagnostic Trouble Code (DTC) ................ 40 . DTC Confirmation Procedure .............................. 110 .
Malfunction Indicator Lamp (MIL) .......................... 43 . Diagnostic Procedure .......................................... 110 .
TROUBLE DIAGNOSIS ........................................... 44 . DTC P0705 PARK/NEUTRAL POSITION SWITCH..111
DTC Inspection Priority Chart ............................... 44 . Description ............................................................111
.
Fail-Safe ................................................................ 44
. CONSULT-II Reference Value ..............................111 .
How To Perform Trouble Diagnosis For Quick and On Board Diagnosis Logic ....................................111 .
Accurate Repair .................................................... 46. Possible Cause .....................................................111
.
Revision: September 2005 AT-1 2006 Frontier
DTC Confirmation Procedure ...............................111 . On Board Diagnosis Logic ................................... 133 .
Wiring Diagram -- AT -- PNP/SW ...................... 112 . Possible Cause .................................................... 133
.
Diagnostic Procedure .......................................... 113 . DTC Confirmation Procedure ............................... 133 .
DTC P0717 TURBINE REVOLUTION SENSOR ... 115 . Wiring Diagram -- AT -- FTS .............................. 134 .
Description ........................................................... 115
. Diagnostic Procedure ........................................... 135 .
CONSULT-II Reference Value ............................. 115 . Component Inspection ......................................... 137 .
On Board Diagnosis Logic ................................... 115 . DTC P1721 VEHICLE SPEED SENSOR MTR ...... 138 .
Possible Cause .................................................... 115. Description ........................................................... 138
.
DTC Confirmation Procedure .............................. 115 . CONSULT-II Reference Value .............................. 138 .
Diagnostic Procedure .......................................... 116 . On Board Diagnosis Logic ................................... 138 .
DTC P0720 VEHICLE SPEED SENSOR A/T (REV- Possible Cause .................................................... 138
.
OLUTION SENSOR) .............................................. 117 . DTC Confirmation Procedure ............................... 138 .
Description ........................................................... 117
. Diagnostic Procedure ........................................... 139 .
CONSULT-II Reference Value ............................. 117 . DTC P1730 A/T INTERLOCK ................................ 140 .
On Board Diagnosis Logic ................................... 117 . Description ........................................................... 140
.
Possible Cause .................................................... 117. On Board Diagnosis Logic ................................... 140 .
DTC Confirmation Procedure .............................. 117 . Possible Cause .................................................... 140
.
Wiring Diagram -- AT -- VSSA/T ........................ 119 . DTC Confirmation Procedure ............................... 140 .
Diagnostic Procedure .......................................... 120 . Judgement of A/T Interlock .................................. 141 .
DTC P0725 ENGINE SPEED SIGNAL .................. 122 . Diagnostic Procedure ........................................... 141 .
Description ........................................................... 122
. DTC P1731 A/T 1ST ENGINE BRAKING .............. 143 .
CONSULT-II Reference Value ............................. 122 . Description ........................................................... 143
.
On Board Diagnosis Logic ................................... 122 . CONSULT-II Reference Value .............................. 143 .
Possible Cause .................................................... 122. On Board Diagnosis Logic ................................... 143 .
DTC Confirmation Procedure .............................. 122 . Possible Cause .................................................... 143
.
Diagnostic Procedure .......................................... 123 . DTC Confirmation Procedure ............................... 143 .
DTC P0740 TORQUE CONVERTER CLUTCH Diagnostic Procedure ........................................... 144 .
SOLENOID VALVE ................................................ 124 . DTC P1752 INPUT CLUTCH SOLENOID VALVE . 145
Description ........................................................... 124
. Description ........................................................... 145
.
CONSULT-II Reference Value ............................. 124 . CONSULT-II Reference Value .............................. 145 .
On Board Diagnosis Logic ................................... 124 . On Board Diagnosis Logic ................................... 145 .
Possible Cause .................................................... 124. Possible Cause .................................................... 145
.
DTC Confirmation Procedure .............................. 124 . DTC Confirmation Procedure ............................... 145 .
Diagnostic Procedure .......................................... 125 . Diagnostic Procedure ........................................... 146 .
DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP). 126 DTC P1754 INPUT CLUTCH SOLENOID VALVE
Description ........................................................... 126
. FUNCTION ............................................................. 147
.
CONSULT-II Reference Value ............................. 126 . Description ........................................................... 147
.
On Board Diagnosis Logic ................................... 126 . CONSULT-II Reference Value .............................. 147 .
Possible Cause .................................................... 126. On Board Diagnosis Logic ................................... 147 .
DTC Confirmation Procedure .............................. 126 . Possible Cause .................................................... 147
.
Diagnostic Procedure .......................................... 127 . DTC Confirmation Procedure ............................... 147 .
DTC P0745 LINE PRESSURE SOLENOID VALVE. 128 Diagnostic Procedure ........................................... 148 .
Description ........................................................... 128
. DTC P1757 FRONT BRAKE SOLENOID VALVE .. 149 .
CONSULT-II Reference Value ............................. 128 . Description ........................................................... 149
.
On Board Diagnosis Logic ................................... 128 . CONSULT-II Reference Value .............................. 149 .
Possible Cause .................................................... 128. On Board Diagnosis Logic ................................... 149 .
DTC Confirmation Procedure .............................. 128 . Possible Cause .................................................... 149
.
Diagnostic Procedure .......................................... 129 . DTC Confirmation Procedure ............................... 149 .
DTC P1705 THROTTLE POSITION SENSOR ...... 130 . Diagnostic Procedure ........................................... 150 .
Description ........................................................... 130
. DTC P1759 FRONT BRAKE SOLENOID VALVE
CONSULT-II Reference Value ............................. 130 . FUNCTION ............................................................. 151
.
On Board Diagnosis Logic ................................... 130 . Description ........................................................... 151
.
Possible Cause .................................................... 130. CONSULT-II Reference Value .............................. 151 .
DTC Confirmation Procedure .............................. 130 . On Board Diagnosis Logic ................................... 151 .
Diagnostic Procedure .......................................... 131 . Possible Cause .................................................... 151
.
DTC P1710 A/T FLUID TEMPERATURE SENSOR DTC Confirmation Procedure ............................... 151 .
CIRCUIT ................................................................. 133
. Diagnostic Procedure ........................................... 152 .
Description ........................................................... 133
. DTC P1762 DIRECT CLUTCH SOLENOID VALVE.153
CONSULT-II Reference Value ............................. 133 . Description ........................................................... 153
.
Revision: September 2005 AT-2 2006 Frontier
CONSULT-II Reference Value ............................. 153 . DTC P1845 ATF PRESSURE SWITCH 5 .............. 169 .
On Board Diagnosis Logic .................................. 153 . Description ........................................................... 169
. A
Possible Cause ................................................... 153 . CONSULT-II Reference Value ............................. 169 .
DTC Confirmation Procedure .............................. 153 . On Board Diagnosis Logic ................................... 169 .
Diagnostic Procedure .......................................... 154 . Possible Cause .................................................... 169
. B
DTC P1764 DIRECT CLUTCH SOLENOID VALVE DTC Confirmation Procedure .............................. 169 .
FUNCTION ............................................................. 155
. Diagnostic Procedure .......................................... 170 .
Description .......................................................... 155
. DTC P1846 ATF PRESSURE SWITCH 6 .............. 171 .
CONSULT-II Reference Value ............................. 155 . Description ........................................................... 171
. AT
On Board Diagnosis Logic .................................. 155 . CONSULT-II Reference Value ............................. 171 .
Possible Cause ................................................... 155 . On Board Diagnosis Logic ................................... 171 .
DTC Confirmation Procedure .............................. 155 . Possible Cause .................................................... 171
. D
Diagnostic Procedure .......................................... 156 . DTC Confirmation Procedure .............................. 171 .
DTC P1767 HIGH AND LOW REVERSE CLUTCH Diagnostic Procedure .......................................... 172 .
SOLENOID VALVE ................................................ 157 . MAIN POWER SUPPLY AND GROUND CIRCUIT. 173 E
Description .......................................................... 157
. Wiring Diagram -- AT -- MAIN ........................... 173 .
CONSULT-II Reference Value ............................. 157 . Diagnostic Procedure .......................................... 174 .
On Board Diagnosis Logic .................................. 157 . CLOSED THROTTLE POSITION AND WIDE OPEN
Possible Cause ................................................... 157 . THROTTLE POSITION CIRCUIT ........................... 177 . F
DTC Confirmation Procedure .............................. 157 . CONSULT-II Reference Value ............................. 177 .
Diagnostic Procedure .......................................... 158 . Diagnostic Procedure .......................................... 177 .
DTC P1769 HIGH AND LOW REVERSE CLUTCH BRAKE SIGNAL CIRCUIT ..................................... 178 . G
SOLENOID VALVE FUNCTION ............................ 159 . CONSULT-II Reference Value ............................. 178 .
Description .......................................................... 159
. Diagnostic Procedure .......................................... 178 .
CONSULT-II Reference Value ............................. 159 . OVERDRIVE CONTROL SWITCH ........................ 179 . H
On Board Diagnosis Logic .................................. 159 . CONSULT-II Reference Value ............................. 179 .
Possible Cause ................................................... 159 . Diagnostic Procedure .......................................... 179 .
DTC Confirmation Procedure .............................. 159 . TROUBLE DIAGNOSIS FOR SYMPTOMS ........... 181 .
I
Diagnostic Procedure .......................................... 160 . Wiring Diagram -- AT -- NONDTC ..................... 181 .
DTC P1772 LOW COAST BRAKE SOLENOID O/D OFF Indicator Lamp Does Not Come On ..... 183 .
VALVE .................................................................... 161
. Engine Cannot Be Started In "P" or "N" Position . 184
Description .......................................................... 161
. In "P" Position, Vehicle Moves When Pushed ..... 185 . J
CONSULT-II Reference Value ............................. 161 . In "N" Position, Vehicle Moves ............................. 186 .
On Board Diagnosis Logic .................................. 161 . Large Shock ("N" to "D" Position) ........................ 187 .
Possible Cause ................................................... 161 . Vehicle Does Not Creep Backward In "R" Position 189 . K
DTC Confirmation Procedure .............................. 161 . Vehicle Does Not Creep Forward In "D" Position . 192
Diagnostic Procedure .......................................... 162 . Vehicle Cannot Be Started From D1 .................... 194 .
DTC P1774 LOW COAST BRAKE SOLENOID A/T Does Not Shift: D1 D2 ............................... 196 . L
VALVE FUNCTION ................................................ 163 . A/T Does Not Shift: D2 D3 ............................... 198 .
Description .......................................................... 163
. A/T Does Not Shift: D3 D4 ............................... 200 .
CONSULT-II Reference Value ............................. 163 . A/T Does Not Shift: D4 D5 ............................... 202 .
On Board Diagnosis Logic .................................. 163 . A/T Does Not Perform Lock-up ........................... 204 . M
Possible Cause ................................................... 163 . A/T Does Not Hold Lock-up Condition ................. 206 .
DTC Confirmation Procedure .............................. 163 . Lock-up Is Not Released ..................................... 208 .
Diagnostic Procedure .......................................... 164 . Engine Speed Does Not Return to Idle ............... 209 .
DTC P1841 ATF PRESSURE SWITCH 1 .............. 165 . A/T Does Not Shift: 5th gear 4th gear ............. 211 .
Description .......................................................... 165
. A/T Does Not Shift: 4th gear 3rd gear ............. 213 .
CONSULT-II Reference Value ............................. 165 . A/T Does Not Shift: 3rd gear 2nd gear ............ 215 .
On Board Diagnosis Logic .................................. 165 . A/T Does Not Shift: 2nd gear 1st gear ............ 217 .
Possible Cause ................................................... 165 . Vehicle Does Not Decelerate By Engine Brake ... 219 .
DTC Confirmation Procedure .............................. 165 . SHIFT CONTROL SYSTEM ................................... 221 .
Diagnostic Procedure .......................................... 166 . Control Device Removal and Installation ............. 221 .
DTC P1843 ATF PRESSURE SWITCH 3 .............. 167 . Adjustment of A/T Position .................................. 222 .
Description .......................................................... 167
. Checking of A/T Position ..................................... 222 .
CONSULT-II Reference Value ............................. 167 . A/T SHIFT LOCK SYSTEM ................................... 223 .
On Board Diagnosis Logic .................................. 167 . Description ........................................................... 223
.
Possible Cause ................................................... 167 . Shift Lock System Electrical Parts Location ........ 223 .
DTC Confirmation Procedure .............................. 167 . Wiring Diagram -- A/T -- SHIFT ......................... 224 .
Diagnostic Procedure .......................................... 168 . Diagnostic Procedure .......................................... 225 .
Revision: September 2005 AT-3 2006 Frontier
KEY INTERLOCK CABLE ..................................... 228 . REPAIR FOR COMPONENT PARTS ..................... 287 .
Components ........................................................ 228 . Oil Pump .............................................................. 287
.
Removal and Installation ..................................... 229 . Front Sun Gear, 3rd One-Way Clutch .................. 290 .
ON-VEHICLE SERVICE ......................................... 231 . Front Carrier, Input Clutch, Rear Internal Gear .... 292 .
Oil Pan ................................................................. 231
. Mid Sun Gear, Rear Sun Gear, High and Low
Control Valve With TCM and A/T Fluid Temperature Reverse Clutch Hub ............................................. 299 .
Sensor 2 .............................................................. 233
. High and Low Reverse Clutch ............................. 304 .
Rear Oil Seal ....................................................... 242
. Direct Clutch ........................................................ 307
.
AIR BREATHER HOSE .......................................... 243 . ASSEMBLY ............................................................ 309
.
Removal and Installation for QR25DE Engine ..... 243 . Assembly (1) ........................................................ 309
.
Removal and Installation for VQ40DE Engine ..... 244 . Adjustment ........................................................... 322
.
A/T FLUID COOLER .............................................. 246 . Assembly (2) ........................................................ 325
.
Removal and Installation ..................................... 246 . SERVICE DATA AND SPECIFICATIONS (SDS) ... 332 .
TRANSMISSION ASSEMBLY ............................... 247 . General Specifications ......................................... 332 .
Components ........................................................ 247 . Vehicle Speed at Which Gear Shifting Occurs ..... 332 .
Removal and Installation for QR25DE ................. 250 . Vehicle Speed at Which Lock-up Occurs/Releases.333
Removal and Installation for VQ40DE 2WD Models 252 . Stall Speed ........................................................... 333
.
Removal and Installation for VQ40DE 4WD Models 254 . Line Pressure ....................................................... 333
.
OVERHAUL ............................................................ 256. A/T Fluid Temperature Sensor ............................. 334 .
Components ........................................................ 256 . Turbine Revolution Sensor ................................... 334 .
Oil Channel .......................................................... 266
. Vehicle Speed Sensor A/T (Revolution Sensor) .. 334 .
Locations of Adjusting Shims, Needle Bearings, Reverse brake ...................................................... 334
.
Thrust Washers and Snap Rings ......................... 268 . Total End Play ...................................................... 334
.
DISASSEMBLY ...................................................... 270 .
Disassembly ........................................................ 270.
Revision: September 2005 AT-4 2006 Frontier
INDEX FOR DTC
INDEX FOR DTC PFP:00024
A
Alphabetical Index UCS0041A
NOTE:
If DTC U1000 is displayed with other DTC, first perform the trouble diagnosis for DTC U1000. Refer to B
AT-103, "DTC U1000 CAN COMMUNICATION LINE" .
DTC
Items AT
OBD- II Except OBD- II Reference page
(CONSULT- II screen terms)
CONSULT- II GST (*1) CONSULT- II only "A/T"
A/T 1ST E/BRAKING -- P1731 AT-143
D
ATF PRES SW 1/CIRC -- P1841 AT-165
ATF PRES SW 3/CIRC -- P1843 AT-167
ATF PRES SW 5/CIRC -- P1845 AT-169 E
ATF PRES SW 6/CIRC -- P1846 AT-171
A/T INTERLOCK P1730 P1730 AT-140
F
A/T TCC S/V FNCTN P0744 P0744 AT-126
ATF TEMP SEN/CIRC P0710 P1710 AT-133
CAN COMM CIRCUIT U1000 U1000 AT-103 G
D/C SOLENOID/CIRC P1762 P1762 AT-153
D/C SOLENOID FNCTN P1764 (*2 ) P1764 AT-155
ENGINE SPEED SIG -- P0725 AT-122
H
FR/B SOLENOID/CIRC P1757 P1757 AT-149
FR/B SOLENOID FNCT P1759 P1759 AT-151
I
HLR/C SOL/CIRC P1767 P1767 AT-157
HLR/C SOL FNCTN P1769 (*2) P1769 AT-159
I/C SOLENOID/CIRC P1752 P1752 AT-145 J
I/C SOLENOID FNCTN P1754 (*2) P1754 AT-147
L/PRESS SOL/CIRC P0745 P0745 AT-128
K
LC/B SOLENOID/CIRC P1772 P1772 AT-161
LC/B SOLENOID FNCT P1774 P1774 AT-163
PNP SW/CIRC P0705 P0705 AT-111 L
STARTER RELAY/CIRC -- P0615 AT-106
TCC SOLENOID/CIRC P0740 P0740 AT-124
M
TCM P0700 P0700 AT-110
TP SEN/CIRC A/T -- P1705 AT-130
TURBINE REV S/CIRC P0717 P0717 AT-115
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