Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Nissan Frontier 2003-2005 Approved Nissan Frontier 2005 AT
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C TRANSMISSION/TRANSAXLE
A
AUTOMATIC TRANSMISSION
SECTION AT B
AT
D
E
CONTENTS
INDEX FOR DTC ....................................................... 5 . Accurate Repair ..................................................... 43
. F
Alphabetical Index ................................................... 5
. A/T Electrical Parts Location ................................. 48 .
DTC No. Index ........................................................ 6
. Circuit Diagram ...................................................... 49
.
PRECAUTIONS ......................................................... 7 . Inspections Before Trouble Diagnosis ................... 50 . G
Precautions for Supplemental Restraint System Check Before Engine is Started ............................. 54 .
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- Check at Idle .......................................................... 54
.
SIONER" ................................................................. 7
. Cruise Test - Part 1 ................................................ 55
.
H
Precautions for On Board Diagnostic (OBD) System Cruise Test - Part 2 ................................................ 57
.
of A/T and Engine ................................................... 7. Cruise Test - Part 3 ................................................ 58
.
Precautions ............................................................. 8
. Vehicle Speed at Which Gear Shifting Occurs ...... 59 .
Service Notice or Precautions ................................. 9 . Vehicle Speed at Which Lock-up Occurs/Releases 60 ... I
Wiring Diagrams and Trouble Diagnosis ................. 9 . Symptom Chart ...................................................... 61
.
PREPARATION ........................................................ 10 . TCM Input/Output Signal Reference Values .......... 83 .
Special Service Tools ............................................ 10 . CONSULT-II Function (A/T) ................................... 84 . J
Commercial Service Tools ..................................... 12 . Diagnostic Procedure Without CONSULT-II .......... 98 .
A/T FLUID ................................................................ 13
. DTC U1000 CAN COMMUNICATION LINE ........... 100 .
Changing A/T Fluid ............................................... 13 . Description ........................................................... 100
.
K
Checking A/T Fluid ................................................ 13 . On Board Diagnosis Logic ................................... 100 .
A/T Fluid Cooler Cleaning ..................................... 13 . Possible Cause .................................................... 100
.
A/T CONTROL SYSTEM ......................................... 16 . DTC Confirmation Procedure .............................. 100 .
Cross-Sectional View ............................................ 16 . Wiring Diagram -- AT -- CAN ............................. 101 . L
Shift Mechanism .................................................... 18. Diagnostic Procedure .......................................... 102 .
TCM Function ........................................................ 29
. DTC P0615 START SIGNAL CIRCUIT .................. 103 .
CAN Communication ............................................. 30 . Description ........................................................... 103
. M
Input/Output Signal of TCM ................................... 30 . CONSULT-II Reference Value ............................. 103 .
Line Pressure Control ........................................... 31 . On Board Diagnosis Logic ................................... 103 .
Shift Control .......................................................... 32
. Possible Cause .................................................... 103
.
Lock-up Control ..................................................... 33
. DTC Confirmation Procedure .............................. 103 .
Engine Brake Control ............................................ 34 . Wiring Diagram -- AT -- STSIG ......................... 104 .
Control Valve ......................................................... 35
. Diagnostic Procedure .......................................... 105 .
ON BOARD DIAGNOSTIC (OBD) SYSTEM ........... 37 . DTC P0700 TCM .................................................... 107 .
Introduction ........................................................... 37
. Description ........................................................... 107
.
OBD-II Function for A/T System ............................ 37 . On Board Diagnosis Logic ................................... 107 .
One or Two Trip Detection Logic of OBD-II ........... 37 . Possible Cause .................................................... 107
.
OBD-II Diagnostic Trouble Code (DTC) ................ 37 . DTC Confirmation Procedure .............................. 107 .
Malfunction Indicator Lamp (MIL) .......................... 40 . Diagnostic Procedure .......................................... 107 .
TROUBLE DIAGNOSIS ........................................... 41 . DTC P0705 PARK/NEUTRAL POSITION SWITCH. 108
DTC Inspection Priority Chart ............................... 41 . Description ........................................................... 108
.
Fail-Safe ................................................................ 41
. CONSULT-II Reference Value ............................. 108 .
How To Perform Trouble Diagnosis For Quick and On Board Diagnosis Logic ................................... 108 .
Revision: November 2005 AT-1 2005 Frontier
Possible Cause .................................................... 108. DTC P1716 TURBINE REVOLUTION SENSOR ... 133 .
DTC Confirmation Procedure .............................. 108 . Description ........................................................... 133
.
Wiring Diagram -- AT -- PNP/SW ...................... 109 . CONSULT-II Reference Value .............................. 133 .
Diagnostic Procedure .......................................... 110 . On Board Diagnosis Logic ................................... 133 .
DTC P0720 VEHICLE SPEED SENSOR A/T (REV- Possible Cause .................................................... 133
.
OLUTION SENSOR) .............................................. 112 . DTC Confirmation Procedure ............................... 133 .
Description ........................................................... 112
. Diagnostic Procedure ........................................... 134 .
CONSULT-II Reference Value ............................. 112 . DTC P1721 VEHICLE SPEED SENSOR MTR ...... 135 .
On Board Diagnosis Logic ................................... 112 . Description ........................................................... 135
.
Possible Cause .................................................... 112. CONSULT-II Reference Value .............................. 135 .
DTC Confirmation Procedure .............................. 112 . On Board Diagnosis Logic ................................... 135 .
Wiring Diagram -- AT -- VSSA/T ........................ 114 . Possible Cause .................................................... 135
.
Diagnostic Procedure .......................................... 115 . DTC Confirmation Procedure ............................... 135 .
DTC P0725 ENGINE SPEED SIGNAL .................. 117 . Diagnostic Procedure ........................................... 136 .
Description ........................................................... 117
. DTC P1730 A/T INTERLOCK ................................ 137 .
CONSULT-II Reference Value ............................. 117 . Description ........................................................... 137
.
On Board Diagnosis Logic ................................... 117 . On Board Diagnosis Logic ................................... 137 .
Possible Cause .................................................... 117. Possible Cause .................................................... 137
.
DTC Confirmation Procedure .............................. 117 . DTC Confirmation Procedure ............................... 137 .
Diagnostic Procedure .......................................... 118 . Judgement of A/T Interlock .................................. 138 .
DTC P0740 TORQUE CONVERTER CLUTCH Diagnostic Procedure ........................................... 138 .
SOLENOID VALVE ................................................ 119 . DTC P1731 A/T 1ST ENGINE BRAKING .............. 140 .
Description ........................................................... 119
. Description ........................................................... 140
.
CONSULT-II Reference Value ............................. 119 . CONSULT-II Reference Value .............................. 140 .
On Board Diagnosis Logic ................................... 119 . On Board Diagnosis Logic ................................... 140 .
Possible Cause .................................................... 119. Possible Cause .................................................... 140
.
DTC Confirmation Procedure .............................. 119 . DTC Confirmation Procedure ............................... 140 .
Diagnostic Procedure .......................................... 120 . Diagnostic Procedure ........................................... 141 .
DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP). 121 DTC P1752 INPUT CLUTCH SOLENOID VALVE . 142
Description ........................................................... 121
. Description ........................................................... 142
.
CONSULT-II Reference Value ............................. 121 . CONSULT-II Reference Value .............................. 142 .
On Board Diagnosis Logic ................................... 121 . On Board Diagnosis Logic ................................... 142 .
Possible Cause .................................................... 121. Possible Cause .................................................... 142
.
DTC Confirmation Procedure .............................. 121 . DTC Confirmation Procedure ............................... 142 .
Diagnostic Procedure .......................................... 122 . Diagnostic Procedure ........................................... 143 .
DTC P0745 LINE PRESSURE SOLENOID VALVE. 123 DTC P1754 INPUT CLUTCH SOLENOID VALVE
Description ........................................................... 123
. FUNCTION ............................................................. 144
.
CONSULT-II Reference Value ............................. 123 . Description ........................................................... 144
.
On Board Diagnosis Logic ................................... 123 . CONSULT-II Reference Value .............................. 144 .
Possible Cause .................................................... 123. On Board Diagnosis Logic ................................... 144 .
DTC Confirmation Procedure .............................. 123 . Possible Cause .................................................... 144
.
Diagnostic Procedure .......................................... 124 . DTC Confirmation Procedure ............................... 144 .
DTC P1705 THROTTLE POSITION SENSOR ...... 125 . Diagnostic Procedure ........................................... 145 .
Description ........................................................... 125
. DTC P1757 FRONT BRAKE SOLENOID VALVE .. 146 .
CONSULT-II Reference Value ............................. 125 . Description ........................................................... 146
.
On Board Diagnosis Logic ................................... 125 . CONSULT-II Reference Value .............................. 146 .
Possible Cause .................................................... 125. On Board Diagnosis Logic ................................... 146 .
DTC Confirmation Procedure .............................. 125 . Possible Cause .................................................... 146
.
Diagnostic Procedure .......................................... 126 . DTC Confirmation Procedure ............................... 146 .
DTC P1710 A/T FLUID TEMPERATURE SENSOR Diagnostic Procedure ........................................... 147 .
CIRCUIT ................................................................. 128
. DTC P1759 FRONT BRAKE SOLENOID VALVE
Description ........................................................... 128
. FUNCTION ............................................................. 148
.
CONSULT-II Reference Value ............................. 128 . Description ........................................................... 148
.
On Board Diagnosis Logic ................................... 128 . CONSULT-II Reference Value .............................. 148 .
Possible Cause .................................................... 128. On Board Diagnosis Logic ................................... 148 .
DTC Confirmation Procedure .............................. 128 . Possible Cause .................................................... 148
.
Wiring Diagram -- AT -- FTS .............................. 129 . DTC Confirmation Procedure ............................... 148 .
Diagnostic Procedure .......................................... 130 . Diagnostic Procedure ........................................... 149 .
Component Inspection ......................................... 132 . DTC P1762 DIRECT CLUTCH SOLENOID VALVE.150
Revision: November 2005 AT-2 2005 Frontier
Description .......................................................... 150
. DTC Confirmation Procedure .............................. 164 .
CONSULT-II Reference Value ............................. 150 . Diagnostic Procedure .......................................... 165 . A
On Board Diagnosis Logic .................................. 150 . DTC P1845 ATF PRESSURE SWITCH 5 .............. 166 .
Possible Cause ................................................... 150 . Description ........................................................... 166
.
DTC Confirmation Procedure .............................. 150 . CONSULT-II Reference Value ............................. 166 . B
Diagnostic Procedure .......................................... 151 . On Board Diagnosis Logic ................................... 166 .
DTC P1764 DIRECT CLUTCH SOLENOID VALVE Possible Cause .................................................... 166
.
FUNCTION ............................................................. 152
. DTC Confirmation Procedure .............................. 166 .
Description .......................................................... 152
. Diagnostic Procedure .......................................... 167 . AT
CONSULT-II Reference Value ............................. 152 . DTC P1846 ATF PRESSURE SWITCH 6 .............. 168 .
On Board Diagnosis Logic .................................. 152 . Description ........................................................... 168
.
Possible Cause ................................................... 152 . CONSULT-II Reference Value ............................. 168 . D
DTC Confirmation Procedure .............................. 152 . On Board Diagnosis Logic ................................... 168 .
Diagnostic Procedure .......................................... 153 . Possible Cause .................................................... 168
.
DTC P1767 HIGH AND LOW REVERSE CLUTCH DTC Confirmation Procedure .............................. 168 . E
SOLENOID VALVE ................................................ 154 . Diagnostic Procedure .......................................... 169 .
Description .......................................................... 154
. MAIN POWER SUPPLY AND GROUND CIRCUIT. 170
CONSULT-II Reference Value ............................. 154 . Wiring Diagram -- AT -- MAIN ........................... 170 .
On Board Diagnosis Logic .................................. 154 . Diagnostic Procedure .......................................... 171 . F
Possible Cause ................................................... 154 . CLOSED THROTTLE POSITION AND WIDE OPEN
DTC Confirmation Procedure .............................. 154 . THROTTLE POSITION CIRCUIT ........................... 174 .
Diagnostic Procedure .......................................... 155 . CONSULT-II Reference Value ............................. 174 . G
DTC P1769 HIGH AND LOW REVERSE CLUTCH Diagnostic Procedure .......................................... 174 .
SOLENOID VALVE FUNCTION ............................ 156 . BRAKE SIGNAL CIRCUIT ..................................... 175 .
Description .......................................................... 156
. CONSULT-II Reference Value ............................. 175 . H
CONSULT-II Reference Value ............................. 156 . Diagnostic Procedure .......................................... 175 .
On Board Diagnosis Logic .................................. 156 . OVERDRIVE CONTROL SWITCH ........................ 176 .
Possible Cause ................................................... 156 . CONSULT-II Reference Value ............................. 176 .
I
DTC Confirmation Procedure .............................. 156 . Diagnostic Procedure .......................................... 176 .
Diagnostic Procedure .......................................... 157 . TROUBLE DIAGNOSIS FOR SYMPTOMS ........... 178 .
DTC P1772 LOW COAST BRAKE SOLENOID Wiring Diagram -- AT -- NONDTC ..................... 178 .
VALVE .................................................................... 158
. O/D OFF Indicator Lamp Does Not Come On ..... 180 . J
Description .......................................................... 158
. Engine Cannot Be Started In "P" or "N" Position . 181
CONSULT-II Reference Value ............................. 158 . In "P" Position, Vehicle Moves When Pushed ..... 182 .
On Board Diagnosis Logic .................................. 158 . In "N" Position, Vehicle Moves ............................. 183 . K
Possible Cause ................................................... 158 . Large Shock ("N" to "D" Position) ........................ 184 .
DTC Confirmation Procedure .............................. 158 . Vehicle Does Not Creep Backward In "R" Position 186 .
Diagnostic Procedure .......................................... 159 . Vehicle Does Not Creep Forward In "D" Position . 189
L
DTC P1774 LOW COAST BRAKE SOLENOID Vehicle Cannot Be Started From D1 .................... 191 .
VALVE FUNCTION ................................................ 160 . A/T Does Not Shift: D1 D 2 ............................... 193 .
Description .......................................................... 160
. A/T Does Not Shift: D2 D 3 ............................... 195 .
CONSULT-II Reference Value ............................. 160 . A/T Does Not Shift: D3 D 4 ............................... 197 . M
On Board Diagnosis Logic .................................. 160 . A/T Does Not Shift: D4 D 5 ............................... 199 .
Possible Cause ................................................... 160 . A/T Does Not Perform Lock-up ........................... 201 .
DTC Confirmation Procedure .............................. 160 . A/T Does Not Hold Lock-up Condition ................. 203 .
Diagnostic Procedure .......................................... 161 . Lock-up Is Not Released ..................................... 205 .
DTC P1841 ATF PRESSURE SWITCH 1 .............. 162 . Engine Speed Does Not Return to Idle ............... 206 .
Description .......................................................... 162
. A/T Does Not Shift: 5th gear 4th gear ............. 208 .
CONSULT-II Reference Value ............................. 162 . A/T Does Not Shift: 4th gear 3rd gear ............. 210 .
On Board Diagnosis Logic .................................. 162 . A/T Does Not Shift: 3rd gear 2nd gear ............ 212 .
Possible Cause ................................................... 162 . A/T Does Not Shift: 2nd gear 1st gear ............ 214 .
DTC Confirmation Procedure .............................. 162 . Vehicle Does Not Decelerate By Engine Brake ... 216 .
Diagnostic Procedure .......................................... 163 . SHIFT CONTROL SYSTEM ................................... 218 .
DTC P1843 ATF PRESSURE SWITCH 3 .............. 164 . Control Device Removal and Installation ............. 218 .
Description .......................................................... 164
. Adjustment of A/T Position .................................. 219 .
CONSULT-II Reference Value ............................. 164 . Checking of A/T Position ..................................... 219 .
On Board Diagnosis Logic .................................. 164 . A/T SHIFT LOCK SYSTEM ................................... 220 .
Possible Cause ................................................... 164 . Description ........................................................... 220
.
Shift Lock System Electrical Parts Location ........ 220 .
Revision: November 2005 AT-3 2005 Frontier
Wiring Diagram -- A/T -- SHIFT ......................... 221 . REPAIR FOR COMPONENT PARTS ..................... 281 .
Diagnostic Procedure .......................................... 222 . Oil Pump .............................................................. 281
.
KEY INTERLOCK CABLE ..................................... 225 . Front Sun Gear, 3rd One-Way Clutch .................. 284 .
Components ........................................................ 225 . Front Carrier, Input Clutch, Rear Internal Gear .... 286 .
Removal and Installation ..................................... 226 . Mid Sun Gear, Rear Sun Gear, High and Low
ON-VEHICLE SERVICE ......................................... 228 . Reverse Clutch Hub ............................................. 292 .
Oil Pan ................................................................. 228
. High and Low Reverse Clutch ............................. 297 .
Control Valve With TCM and A/T Fluid Temperature Direct Clutch ........................................................ 300
.
Sensor 2 .............................................................. 230
. ASSEMBLY ............................................................ 302
.
Rear Oil Seal ....................................................... 239
. Assembly (1) ........................................................ 302
.
AIR BREATHER HOSE .......................................... 240 . Adjustment ........................................................... 316
.
Removal and Installation for QR25DE Engine ..... 240 . Assembly (2) ........................................................ 318
.
Removal and Installation for VQ40DE Engine ..... 241 . SERVICE DATA AND SPECIFICATIONS (SDS) ... 325 .
TRANSMISSION ASSEMBLY ............................... 243 . General Specifications ......................................... 325 .
Components ........................................................ 243 . Vehicle Speed at Which Gear Shifting Occurs ..... 325 .
Removal and Installation for QR25DE ................. 246 . Vehicle Speed at Which Lock-up Occurs/Releases.326
Removal and Installation for VQ40DE 2WD Models 248 . Stall Speed ........................................................... 326
.
Removal and Installation for VQ40DE 4WD Models 250 . Line Pressure ....................................................... 326
.
OVERHAUL ............................................................ 252. A/T Fluid Temperature Sensor ............................. 327 .
Components ........................................................ 252 . Turbine Revolution Sensor ................................... 327 .
Oil Channel .......................................................... 260
. Vehicle Speed Sensor A/T (Revolution Sensor) .. 327 .
Locations of Adjusting Shims, Needle Bearings, Reverse brake ...................................................... 327
.
Thrust Washers and Snap Rings ......................... 262 . Total End Play ...................................................... 327
.
DISASSEMBLY ...................................................... 264 .
Disassembly ........................................................ 264.
Revision: November 2005 AT-4 2005 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-100, "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-140
D
ATF PRES SW 1/CIRC -- P1841 AT-162
ATF PRES SW 3/CIRC -- P1843 AT-164
ATF PRES SW 5/CIRC -- P1845 AT-166 E
ATF PRES SW 6/CIRC -- P1846 AT-168
A/T INTERLOCK P1730 P1730 AT-137
F
A/T TCC S/V FNCTN P0744 P0744 AT-121
ATF TEMP SEN/CIRC P0710 P1710 AT-128
CAN COMM CIRCUIT U1000 U1000 AT-100 G
D/C SOLENOID/CIRC P1762 P1762 AT-150
D/C SOLENOID FNCTN P1764 (*2 ) P1764 AT-152
ENGINE SPEED SIG -- P0725 AT-117
H
FR/B SOLENOID/CIRC P1757 P1757 AT-146
FR/B SOLENOID FNCT P1759 P1759 AT-148
I
HLR/C SOL/CIRC P1767 P1767 AT-154
HLR/C SOL FNCTN P1769 (*2) P1769 AT-156
I/C SOLENOID/CIRC P1752 P1752 AT-142 J
I/C SOLENOID FNCTN P1754 (*2) P1754 AT-144
L/PRESS SOL/CIRC P0745 P0745 AT-123
K
LC/B SOLENOID/CIRC P1772 P1772 AT-158
LC/B SOLENOID FNCT P1774 P1774 AT-160
PNP SW/CIRC P0705 P0705 AT-108 L
STARTER RELAY/CIRC -- P0615 AT-103
TCC SOLENOID/CIRC P0740 P0740 AT-119
M
TCM P0700 P0700 AT-107
TP SEN/CIRC A/T -- P1705 AT-125
TURBINE REV S/CIRC P1716 P1716 AT-133
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