2005 NISSAN NAVARA check engine

AT-194
TROUBLE DIAGNOSIS FOR SYMPTOMS
A/T Does Not Shift: D
4®D5ECS00G2M
SYMPTOM:
lThe vehicle does not shift-up from D4to D5gear at the specified speed.
lThe vehicle does not shift-up from D4to D5gear unless A/T is warmed up.
DIAGNOSTIC PROCEDURE
1.CONFIRM THE SYMPTOM
Check if vehicle creeps forward in “D” position and vehicle can be started from D
1.
OK or NG
OK >> GO TO 2.
NG >> Refer toAT- 1 8 4 , "
Vehicle Does Not Creep Forward in“D”Position",AT- 1 8 6 , "Vehicle Cannot Be
Start ed fro m D1".
2.CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis. Refer toAT-80, "
SELF-DIAGNOSTIC RESULT MODE",AT-89, "Diagnostic Procedure
Without CONSULT-II".
Is any malfunction detected by self-diagnostic results?
YES >> Check malfunctioning system. Refer toAT-80, "SELF-DIAGNOSTIC RESULT MODE",AT- 9 0 ,
"Judgement Self-diagnosis Code".
NO >> GO TO 3.
3.CHECK OVERDRIVE CONTROL SWITCH CIRCUIT
Check overdrive control switch circuit. Refer toAT- 1 7 2 , "
OVERDRIVE CONTROL SWITCH".
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts.
4.CHECK A/T FLUID LEVEL
Check A/T fluid level. Refer toAT-12, "
Checking A/T Fluid".
OK or NG
OK >> GO TO 5.
NG >> Refill ATF.
5.CHECK LINE PRESSURE
Check line pressure at the engine stall point. Refer toAT-44, "
LINE PRESSURE TEST".
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 toAT- 2 1 8 , "
Control Valve With TCM and A/T Fluid Temperature Sen-
sor 2".
2. Disassemble A/T. Refer toAT- 2 6 3 , "
DISASSEMBLY".
3. Check the following.
–Oil pump assembly. Refer toAT- 2 8 1 , "Oil Pump".
OK or NG
OK >> GO TO 8.
NG >> Repair or replace damaged parts.

AT-196
TROUBLE DIAGNOSIS FOR SYMPTOMS
A/T Does Not Perform Lock-up
ECS00G2N
SYMPTOM:
A/T does not perform lock-up at the specified speed.
DIAGNOSTIC PROCEDURE
1.CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis. Refer toAT-80, "
SELF-DIAGNOSTIC RESULT MODE",AT-89, "Diagnostic Procedure
Without CONSULT-II".
Is any malfunction detected by self-diagnostic results?
YES >> Check malfunctioning system. Refer toAT-80, "SELF-DIAGNOSTIC RESULT MODE",AT- 9 0 ,
"Judgement Self-diagnosis Code".
NO >> GO TO 2.
2.CHECK A/T FLUID LEVEL
Check A/T fluid level. Refer toAT-12, "
Checking A/T Fluid".
OK or NG
OK >> GO TO 3.
NG >> Refill ATF.
3.CHECK LINE PRESSURE
Check line pressure at the engine stall point. Refer toAT-44, "
LINE PRESSURE TEST".
OK or NG
OK >> GO TO 6.
NG - 1 >> Line pressure high. GO TO 4.
NG - 2 >> Line pressure low. GO TO 5.
4.DETECT MALFUNCTIONING ITEM
1. Check control valve with TCM. Refer toAT- 2 1 8 , "
Control Valve With TCM and A/T Fluid Temperature Sen-
sor 2".
2. Disassemble A/T. Refer toAT- 2 6 3 , "
DISASSEMBLY".
3. Check the following.
–Oil pump assembly. Refer toAT- 2 8 1 , "Oil Pump".
OK or NG
OK >> GO TO 6.
NG >> Repair or replace damaged parts.
5.DETECT MALFUNCTIONING ITEM
1. Check control valve with TCM. Refer toAT- 2 1 8 , "
Control Valve With TCM and A/T Fluid Temperature Sen-
sor 2".
2. Disassemble A/T. Refer toAT- 2 6 3 , "
DISASSEMBLY".
3. Check the following.
–Oil pump assembly. Refer toAT- 2 8 1 , "Oil Pump".
–Power train system. Refer toAT- 2 6 3 , "DISASSEMBLY".
–Transmission case. Refer toAT- 2 6 3 , "DISASSEMBLY".
OK or NG
OK >> GO TO 6.
NG >> Repair or replace damaged parts.

TROUBLE DIAGNOSIS FOR SYMPTOMS
AT-199
D
E
F
G
H
I
J
K
L
MA
B
AT
Lock-up Is Not ReleasedECS00G2P
SYMPTOM:
The lock-up condition cannot be cancelled even after releasing accelerator pedal.
DIAGNOSTIC PROCEDURE
1.CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis. Refer toAT-80, "
SELF-DIAGNOSTIC RESULT MODE",AT-89, "Diagnostic Procedure
Without CONSULT-II".
Is any malfunction detected by self-diagnostic results?
YES >> Check malfunctioning system. Refer toAT-80, "SELF-DIAGNOSTIC RESULT MODE",AT- 9 0 ,
"Judgement Self-diagnosis Code".
NO >> GO TO 2.
2.CHECK SYMPTOM
Check again. Refer toAT-48, "
Cruise Test - Part 1".
OK or NG
OK >>INSPECTION END
NG >> GO TO 3.
3.CHECK TCM
1. Check TCM input/output signals. Refer toAT-76, "
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.
Engine Speed Does Not Return to IdleECS00G2Q
SYMPTOM:
When a shift-down is performed, the engine speed does not smoothly return to the idling speed.
DIAGNOSTIC PROCEDURE
1.CHECK A/T FLUID LEVEL
Check A/T fluid level. Refer toAT-12, "
Checking A/T Fluid".
OK or NG
OK >> GO TO 2.
NG >> Refill ATF.
2.CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis. Refer toAT-80, "
SELF-DIAGNOSTIC RESULT MODE",AT-89, "Diagnostic Procedure
Without CONSULT-II".
Is any malfunction detected by self-diagnostic results?
YES >> Check malfunctioning system. Refer toAT-80, "SELF-DIAGNOSTIC RESULT MODE",AT- 9 0 ,
"Judgement Self-diagnosis Code".
NO >> GO TO 3.

AT-206
TROUBLE DIAGNOSIS FOR SYMPTOMS
Vehicle Does Not Decelerate by Engine Brake
ECS00G82
SYMPTOM:
No engine brake is applied when the gear is shifted from the 22to 11gear.
DIAGNOSTIC PROCEDURE
1.CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis. Refer toAT-80, "
SELF-DIAGNOSTIC RESULT MODE",AT-89, "Diagnostic Procedure
Without CONSULT-II"
Is any malfunction detected by self-diagnostic results?
YES >> Check malfunctioning system. Refer toAT-80, "SELF-DIAGNOSTIC RESULT MODE",AT- 9 0 ,
"Judgement Self-diagnosis Code".
NO >> GO TO 2.
2.CHECK 1ST POSITION SWITCH CIRCUIT
Check 1st position switch circuit. Refer toAT- 1 7 0 , "
1ST POSITION SWITCH".
OK or NG
OK >> GO TO 3.
NG >> Repair or replace damaged parts.
3.CHECK A/T FLUID LEVEL
Check A/T fluid level. Refer toAT-12, "
Checking A/T Fluid".
OK or NG
OK >> GO TO 4.
NG >> Refill ATF.
4.CHECK CONTROL CABLE
Check control cable. Refer toAT- 2 11 , "
Checking of A/T Position".
OK or NG
OK >> GO TO 5.
NG >> Adjust control cable. Refer toAT- 2 11 , "
Adjustment of A/T Position".
5.CHECK A/T FLUID CONDITION
1. Remove oil pan. Refer toAT- 2 1 8 , "
Control Valve With TCM and A/T Fluid Temperature Sensor 2".
2. Check A/T fluid condition. Refer toAT-43, "
A/T Fluid Condition Check".
OK or NG
OK >> GO TO 6.
NG >> GO TO 9.
6.DETECT MALFUNCTIONING ITEM
Check malfunction items. If any items are damaged, repair or replace damaged parts. Refer toAT-53, "
Symp-
tom Chart"(Symptom No.53).
OK or NG
OK >> GO TO 7.
NG >> Repair or replace damaged parts.
7.CHECK SYMPTOM
Check again. Refer toAT-51, "
Cruise Test - Part 3".
OK or NG
OK >>INSPECTION END
NG >> GO TO 8.

SHIFT CONTROL SYSTEM
AT-211
D
E
F
G
H
I
J
K
L
MA
B
AT
Adjustment of A/T PositionECS00G2X
1. Loosen nut of control cable.
2. Place manual lever and selector lever in “P” position.
3. Push control cable in the direction shown with a force of 9.8 N
(1kg, 2.2 lb), release it. This is in the natural state, tighten nut to
the specified torque. Refer toAT- 2 1 0 , "
COMPONENTS".
Checking of A/T PositionECS00G2Y
1. Place selector lever in “P” position, and turn ignition switch ON (Do not start engine).
2. Check selector lever can be shifted to other than “P” position when brake pedal is depressed. Also check
selector lever can be shifted from “P” position only when brake pedal is depressed.
3. Move selector lever and check for excessive effort, sticking, noise or rattle.
4. Check selector lever stops at each position with the feel of engagement when it is moved through all the
positions. Check whether or not the actual position selector lever is in matches the position shown by the
shift position indicator and the A/T body.
5. The method of operating the selector lever to individual posi-
tions correctly should be as shown in the figure.
6. When selector button is pressed in “P”, “R”, or “N” position with-
out applying forward/backward force to selector lever, check but-
ton operation for sticking.
7. Check back-up lamps illuminate only when selector lever is
placed in the “R” position. Check back-up lamps does not illumi-
nate when selector lever is pushed against “R” position in the
“P” or “N” position.
8. Check engine can only be started with selector lever in the “P”
and “N” positions.
9. Check A/T is locked completely in “P” position.
SCIA6789E
SCIA7316E

AT-214
A/T SHIFT LOCK SYSTEM
Diagnostic Procedure
ECS00G32
SYMPTOM 1:
lSelector lever cannot be moved from “P” position with key in ON position and brake pedal
applied.
lSelector lever can be moved from “P” position with key in ON position and brake pedal released.
lSelector lever can be moved from “P” position when key is removed from key cylinder.
SYMPTOM 2:
lIgnition key cannot be removed when selector lever is set to “P” position.
lIgnition key can be removed when selector lever is set to any position except “P” position.
1.CHECK KEY INTERLOCK CABLE
Check key interlock cable for damage.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace key interlock cable. Refer toAT- 2 1 6 , "
Removal and Installation".
2.CHECK SELECTOR LEVER POSITION
Check selector lever position for damage. Refer toAT- 2 11 , "
Checking of A/T Position"
OK or NG
OK >> GO TO 3.
NG >> Adjust control cable. Refer toAT- 2 11 , "
Adjustment of A/T Position".
3.CHECK SHIFT LOCK SOLENOID AND PARK POSITION SWITCH
1. Connect A/T device harness connector.
2. Turn ignition switch ON. (Do not start engine.)
3. Selector lever is set in “P” position.
4. Check operation.
OK or NG
OK >>INSPECTION END
NG >> GO TO 4.
4.CHECK POWER SOURCE
1. Turn ignition switch ON. (Do not start engine.)
2. Check voltage between A/T device harness connector M79 ter-
minal 1 and ground.
OK or NG
OK >> GO TO 7.
NG >> GO TO 5.
Condition Brake pedal Operation
When ignition switch is turned to ON and selector lever is
set in “P” position.Depressed Yes
Released No
Condition Brake pedal Data (Approx.)
When ignition switch is turned to ON.Depressed Battery voltage
Released 0V
SCIA2122E

AT-250
TRANSMISSION ASSEMBLY
INSPECTION
Installation and Inspection of Torque Converter
lAfter inserting a torque converter to a A/T, be sure to check dis-
tance “A” to ensure it is within the reference value limit.
INSTALLATION
Install the removed parts in the reverse order of the removal, while paying attention to the following work.
lWhen installing A/T assembly to engine assembly, tighten bolts
to the specified torque using sequence shown.
*: Tightening the bolt with air breather tube bracket.
lAlign the positions of tightening bolts for drive plate with those of
the torque converter, and temporarily tighten the bolts. Then,
tighten the bolts with the specified torque. Refer toAT-247,
"COMPONENTS".
CAUTION:
lWhen turning crankshaft, turn it clockwise as viewed from
the front of engine.
lWhen tightening the tightening bolts for the torque con-
verter after fixing the crankshaft pulley bolts, be sure to
confirm the tightening torque of the crankshaft pulley
mounting bolts. Refer toEM-85, "
INSTALLATION".
lAfter converter is installed to drive plate, rotate crankshaft
several turns and check to be sure that A/T rotates freely without binding.
lInstall crankshaft position sensor (POS). Refer toEM-36, "Removal and Installation".
lAfter completing installation, check A/T fluid leakage, A/T fluid level, and A/T positions of A/T. Refer toAT-
12, "Checking A/T Fluid",AT- 2 11 , "Checking of A/T Position". Distance “A”: 25.0 mm (0.98 in) or more
SCIA5694E
Bolt No. 1 2*
Number of bolts 9 1
Tightening torque
N·m (kg-m, ft-lb)44 (4.5, 32)
SCIA7217E
SCIA6828E

ATC-2
DATA MONITOR .................................................. 34
How to Perform Trouble Diagnosis for Quick and
Accurate Repair ...................................................... 35
WORK FLOW ...................................................... 35
SYMPTOM TABLE .............................................. 35
Component Parts and Harness Connector Location... 36
ENGINE COMPARTMENT .................................. 36
FRONT PASSENGER COMPARTMENT ............ 37
Schematic —LHD MODELS— ............................... 38
Wiring Diagram —A/C— —LHD MODELS— ......... 39
Schematic —RHD MODELS— ............................... 46
Wiring Diadram —A/C— —RHD MODELS— ......... 47
Front Air Control Terminals and Reference Value... 53
PIN CONNECTOR TERMINAL LAYOUT ............ 53
TERMINALS AND REFERENCE VALUE FOR
FRONT AIR CONTROL ....................................... 53
A/C System Self-diagnosis Function ...................... 55
DESCRIPTION .................................................... 55
Operational Check .................................................. 57
CHECKING MEMORY FUNCTION ..................... 57
CHECKING BLOWER ......................................... 57
CHECKING DISCHARGE AIR ............................ 58
CHECKING RECIRCULATION ............................ 58
CHECKING TEMPERATURE DECREASE ......... 58
CHECKING TEMPERATURE INCREASE .......... 59
CHECK A/C SWITCH .......................................... 59
CHECKING AUTO MODE ................................... 59
Power Supply and Ground Circuit for Front Air Con-
trol ........................................................................... 60
INSPECTION FLOW ........................................... 60
COMPONENT DESCRIPTION ............................ 61
DIAGNOSTIC PROCEDURE FOR A/C SYSTEM... 61
Mode Door Motor Circuit ........................................ 63
INSPECTION FLOW ........................................... 63
SYSTEM DESCRIPTION .................................... 64
COMPONENT DESCRIPTION ............................ 65
DIAGNOSTIC PROCEDURE FOR MODE
DOOR MOTOR ................................................... 65
Air Mix Door Motor Circuit ...................................... 68
INSPECTION FLOW ........................................... 68
SYSTEM DESCRIPTION .................................... 69
COMPONENT DESCRIPTION ............................ 70
DIAGNOSTIC PROCEDURE FOR AIR MIX
DOOR MOTOR (DRIVER) ................................... 71
DIAGNOSTIC PROCEDURE FOR AIR MIX
DOOR MOTOR (PASSENGER) .......................... 73
Intake Door Motor Circuit ........................................ 77
INSPECTION FLOW ........................................... 77
SYSTEM DESCRIPTION .................................... 78
COMPONENT DESCRIPTION ............................ 79
DIAGNOSTIC PROCEDURE FOR INTAKE
DOOR MOTOR ................................................... 79
Blower Motor Circuit ............................................... 80
INSPECTION FLOW ........................................... 80
SYSTEM DESCRIPTION .................................... 81
COMPONENT DESCRIPTION ............................ 82
DIAGNOSTIC PROCEDURE FOR BLOWER
MOTOR ............................................................... 82
COMPONENT INSPECTION .............................. 86Magnet Clutch Circuit .............................................. 87
INSPECTION FLOW ............................................ 87
SYSTEM DESCRIPTION ..................................... 88
DIAGNOSTIC PROCEDURE FOR MAGNET
CLUTCH .............................................................. 88
COMPONENT INSPECTION ............................... 92
Insufficient Cooling .................................................. 93
INSPECTION FLOW ............................................ 93
PERFORMANCE TEST DIAGNOSES ................ 94
PERFORMANCE CHART .................................... 96
TROUBLE DIAGNOSES FOR UNUSUAL PRES-
SURE ................................................................... 97
Insufficient Heating ...............................................100
INSPECTION FLOW ..........................................100
Noise .....................................................................101
INSPECTION FLOW ..........................................101
Self-diagnosis .......................................................103
INSPECTION FLOW ..........................................103
Memory Function ..................................................104
INSPECTION FLOW ..........................................104
Ambient Sensor Circuit .........................................105
COMPONENT DESCRIPTION ..........................105
AMBIENT TEMPERATURE INPUT PROCESS.105
DIAGNOSTIC PROCEDURE FOR AMBIENT
SENSOR ............................................................105
COMPONENT INSPECTION .............................107
In-vehicle Sensor Circuit .......................................108
COMPONENT DESCRIPTION ..........................108
DIAGNOSTIC PROCEDURE FOR IN-VEHICLE
SENSOR ............................................................109
COMPONENT INSPECTION ............................. 111
Optical Sensor Circuit ...........................................112
COMPONENT DESCRIPTION ..........................112
OPTICAL INPUT PROCESS .............................112
DIAGNOSTIC PROCEDURE FOR SUNLOAD
SENSOR ............................................................112
Intake Sensor Circuit .............................................114
COMPONENT DESCRIPTION ..........................114
DIAGNOSTIC PROCEDURE FOR INTAKE SEN-
SOR ...................................................................114
COMPONENT INSPECTION .............................115
CONTROL UNIT ......................................................116
Removal and Installation .......................................116
REMOVAL ..........................................................116
INSTALLATION ..................................................116
AMBIENT SENSOR ................................................117
Removal and Installation .......................................117
REMOVAL ..........................................................117
INSTALLATION ..................................................117
IN-VEHICLE SENSOR ............................................118
Removal and Installation .......................................118
REMOVAL ..........................................................118
INSTALLATION ..................................................118
OPTICAL SENSOR .................................................119
Removal and Installation .......................................119
INTAKE SENSOR ....................................................120
Removal and Installation .......................................120
REMOVAL ..........................................................120
INSTALLATION ..................................................120