check engine INFINITI M35 2006 Factory User Guide

TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
ACS-53
[ICC]
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ACS
Revision: 2006 January2006 M35/M45
15. CHECK HARNESS BETWEEN ICC BRAKE HOLD RELAY AND ECM
1. Turn ignition switch OFF.
2. Disconnect ECM connector.
3. Check continuity between ICC brake hold relay harness connec-
tor (A) and ECM harness connector (B).
4. Check continuity between ICC brake hold relay harness connec-
tor (A) and ground.
OK or NG
OK >> GO TO 16.
NG >> 1. Repair harness between ICC brake hold relay and ECM.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
16. CHECK ICC BRAKE HOLD RELAY
With CONSULT-II
1. Connect ECM connector and ICC brake hold relay.
2. Disconnect stop lamp switch connector.
3. Perform “ACTIVE TEST” (“STOP LAMP”) with CONSULT-II, and make sure that stop lamp is illuminated.
OK or NG
OK >> GO TO 17.
NG >> 1. Replace ICC brake hold relay.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
17. CHECK STOP LAMP SWITCH WITH ABS DATA MONITOR
With CONSULT-II
With “ABS” “DATA MONITOR”, check if “STOP LAMP SW” are operates normally.
OK or NG
OK >> GO TO 18.
NG >> GO TO 20.
18. PERFORM ECM SELF-DIAGNOSIS
With CONSULT-II
1. Perform “ENGINE”self-diagnosis. Refer to EC-133, "
CONSULT-II Function (ENGINE)" (for VQ35DE) or
EC-846, "
CONSULT-II Function (ENGINE)" (for VK45DE).
2. Check if malfunction is indicated.
Is malfunction indicated?
YES >> 1. Repair or replace applicable item.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
NO >> GO TO 19.
AB
Continuity
Connector Terminal Connector Terminal
E80 5 M71 101 Yes
A
GroundContinuity
Connector Terminal
E80 5 No
PKIB9344E

TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
ACS-55
[ICC]
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23. CHECK HARNESS BETWEEN STOP LAMP SWITCH AND ABS ACTUATOR AND ELECTRIC UNIT
(CONTROL UNIT)
1. Turn ignition switch OFF.
2. Disconnect ABS actuator and electric unit (control unit) connector.
3. Check continuity between stop lamp switch harness connector
(A) and ABS actuator and electric unit (control unit) harness
connector (B).
4. Check continuity between stop lamp switch harness connector
(A) and ground.
OK or NG
OK >> 1. Perform “ABS” self-diagnosis. Refer to BRC-22, "CONSULT-II Functions (ABS)" .
2. After repairing or replacing applicable item, erase DTC and perform ICC system running test.
Then perform self-diagnosis of ICC system again.
NG >> 1. Repair or replace harness between stop lamp switch and ABS actuator and electric unit (control
unit).
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
DTC 14 ECM CIRCUITNKS004D8
1. PERFORM ICC SENSOR INTEGRATED UNIT SELF-DIAGNOSIS
1. Perform self-diagnosis.
2. Check if “CAN COMM CIRCUIT [U1000]” (DTC 100) other than “ECM CIRCUIT [C1A14]” (DTC 14) is indi-
cated in self-diagnosis item in the display.
Is it indicated?
YES >> 1. CAN communication inspection. Refer to ACS-60, "DTC 100 CAN COMM CIRCUIT" .
2. After repairing or replacing applicable item, erase DTC and perform ICC system running test.
Then perform self-diagnosis of ICC system again.
NO >> GO TO 2.
2. PERFORM ECM SELF-DIAGNOSIS
With CONSULT-II
1. Perform “ENGINE” self-diagnosis. Refer to EC-133, "
CONSULT-II Function (ENGINE)" (for VQ35DE) or
EC-846, "
CONSULT-II Function (ENGINE)" (for VK45DE).
2. Check if malfunction is indicated.
Is malfunction indicated?
YES >> 1. Repair or replace applicable item.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
NO >> 1. Replace ICC sensor integrated unit, and adjust laser beam aiming.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
AB
Continuity
Connector Terminal Connector Terminal
E124 4 E30 30 Yes
A
GroundContinuity
Connector Terminal
E124 4 No
PKIC0834E

ACS-66
[ICC]
TROUBLE DIAGNOSIS FOR SYMPTOMS
Revision: 2006 January2006 M35/M45
4. CHECK CHIME OPERATION
With CONSULT-II
1. Select “BUZZER” on “BCM”.
2. With “BUZZER” “ACTIVE TEST”, check if “IGN KEY WARN ALM” and “LIGHT WARN ALM” operate nor-
mally.
Does chime sound?
YES >> 1. Replace ICC sensor integrated unit, and adjust laser beam aiming.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
NO >> 1. Replace combination meter.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
Symptom 6: Driving Force Is HuntingNKS004DP
1. PERFORM ECM SELF-DIAGNOSIS
With CONSULT-II
Perform “ENGINE” self-diagnosis. Refer to EC-133, "
CONSULT-II Function (ENGINE)" (for VQ35DE) or EC-
846, "CONSULT-II Function (ENGINE)" (for VK45DE).
Is malfunction indicated?
YES >> 1. Repair or replace applicable item.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
NO >> Refer to ACS-66, "
Symptom 7: ICC System Frequently Cannot Detect the Vehicle Ahead/ Detec-
tion Zone Is Short" .
Symptom 7: ICC System Frequently Cannot Detect the Vehicle Ahead/ Detection
Zone Is Short
NKS004DQ
The detection function may become unstable in the following cases.
When the reflector of the vehicle ahead is deficient/ not clean enough to reflect the radar.
When driving a road with extremely sharp corners.
When the sensor cannot detect the reflector of the vehicle ahead as the vehicle ahead is passing a hill or
passing the peak.
1. VISUAL CHECK 1
Check ICC sensor integrated unit body window for contamination and foreign materials.
Is it found?
YES >> 1. If any, remove them.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
NO >> GO TO 2.
2. VISUAL CHECK 2
Check ICC sensor integrated unit body window for cracks and scratches.
Is it found?
YES >> 1. Replace ICC sensor integrated unit, and adjust laser beam aiming.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
NO >> GO TO 3.

AT-1
AUTOMATIC TRANSMISSION
C TRANSMISSION/TRANSAXLE
CONTENTS
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SECTION AT
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AUTOMATIC TRANSMISSION
INDEX FOR DTC ........................................................ 5
Alphabetical Index .................................................... 5
DTC No. Index ......................................................... 6
PRECAUTIONS .......................................................... 7
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 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
Changing A/T Fluid .............................................
... 12
Checking A/T Fluid ................................................. 13
A/T Fluid Cooler Cleaning ...................................... 14
A/T CONTROL SYSTEM .......................................... 17
Cross-Sectional View (VQ35DE Models for 2WD) ... 17
Cross-Sectional View (VK45DE Models for 2WD) ... 18
Cross-Sectional View (AWD Models) ..................... 19
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 ...................................................... 37
Engine Brake Control ............................................. 38
Control Valve .......................................................... 38
ON BOARD DIAGNOSTIC (OBD) SYSTEM ............ 40
Introduction ............................................................ 40
OBD-II Function for A/T System ............................. 40
One or Two Trip Detection Logic of OBD-II ............ 40
OBD-II Diagnostic Trouble Code (DTC) ................. 40
Malfunction Indicator Lamp (MIL) ........................... 43
TROUBLE DIAGNOSIS ............................................ 44
DTC Inspection Priority Chart ................................ 44
Fail-safe ................................................................. 44How to Perform Trouble Diagnosis for Quick and
Accurate Repair ...................................................... 46
A/T Electrical Parts Location .................................. 51
Circuit Diagram ....................................................... 52
Inspections before Trouble Diagnosis .................... 53
Check before Engine Is Started .............................. 57
Check at Idle ........................................................... 57
Cruise Test - Part 1 ................................................. 59
Cruise Test - Part 2 ................................................. 61
Cruise Test - Part 3 ................................................. 62
Vehicle Speed at Which Gear Shifting Occurs ....... 63
Vehicle Speed at Which Lock-Up Occurs/Releases ... 63
Symptom Chart ....................................................... 64
TCM Input/Output Signal Reference Values ........... 89
CONSULT-II Function (A/T) .................................... 90
Diagnostic Procedure without CONSULT-II ..........103
DTC U1000 CAN COMMUNICATION LINE ............105
Description ............................................................105
On Board Diagnosis Logic ....................................105
Possible Cause .....................................................105
DTC Confirmation Procedure ...............................105
Wiring Diagram — AT — CAN ..............................106
Diagnostic Procedure ...........................................107
DTC P0615 START SIGNAL CIRCUIT ...................108
Description ............................................................108
CONSULT-II Reference Value ..............................108
On Board Diagnosis Logic ....................................108
Possible Cause .....................................................108
DTC Confirmation Procedure ...............................108
Wiring Diagram — AT — STSIG ..........................109
Diagnostic Procedure ...........................................110
DTC P0700 TCM .....................................................112
Description ............................................................112
On Board Diagnosis Logic ....................................112
Possible Cause .....................................................112
DTC Confirmation Procedure ...............................112
Diagnostic Procedure ...........................................112
DTC P0705 PARK/NEUTRAL POSITION SWITCH .113
Description ............................................................113
CONSULT-II Reference Value ..............................113

AT-3
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Revision: 2006 January2006 M35/M45 DTC P1762 DIRECT CLUTCH SOLENOID VALVE .155
Description ...........................................................155
CONSULT-II Reference Value ..............................155
On Board Diagnosis Logic ...................................155
Possible Cause ....................................................155
DTC Confirmation Procedure ...............................155
Diagnostic Procedure ...........................................156
DTC P1764 DIRECT CLUTCH SOLENOID VALVE
FUNCTION ..............................................................157
Description ...........................................................157
CONSULT-II Reference Value ..............................157
On Board Diagnosis Logic ...................................157
Possible Cause ....................................................157
DTC Confirmation Procedure ...............................157
Diagnostic Procedure ...........................................158
DTC P1767 HIGH AND LOW REVERSE CLUTCH
SOLENOID VALVE .................................................159
Description ...........................................................159
CONSULT-II Reference Value ..............................159
On Board Diagnosis Logic ...................................159
Possible Cause ....................................................159
DTC Confirmation Procedure ...............................159
Diagnostic Procedure ...........................................160
DTC P1769 HIGH AND LOW REVERSE CLUTCH
SOLENOID VALVE FUNCTION .............................161
Description ...........................................................161
CONSULT-II Reference Value ..............................161
On Board Diagnosis Logic ...................................161
Possible Cause ....................................................161
DTC Confirmation Procedure ...............................161
Diagnostic Procedure ...........................................162
DTC P1772 LOW COAST BRAKE SOLENOID
VALVE .....................................................................163
Description ...........................................................163
CONSULT-II Reference Value ..............................163
On Board Diagnosis Logic ...................................163
Possible Cause ....................................................163
DTC Confirmation Procedure ...............................163
Diagnostic Procedure ...........................................164
DTC P1774 LOW COAST BRAKE SOLENOID
VALVE FUNCTION .................................................165
Description ...........................................................165
CONSULT-II Reference Value ..............................165
On Board Diagnosis Logic ...................................165
Possible Cause ....................................................165
DTC Confirmation Procedure ...............................165
Diagnostic Procedure ..........................................
.166
DTC P1815 MANUAL MODE SWITCH ..................167
Description ...........................................................167
CONSULT-II Reference Value ..............................167
On Board Diagnosis Logic ...................................167
Possible Cause ....................................................167
DTC Confirmation Procedure ...............................167
Wiring Diagram — AT — MMSW .........................168
Diagnostic Procedure ...........................................170
Component Inspection .........................................171
DTC P1841 ATF PRESSURE SWITCH 1 ...............172
Description ...........................................................172
CONSULT-II Reference Value ..............................172On Board Diagnosis Logic ....................................172
Possible Cause .....................................................172
DTC Confirmation Procedure ...............................172
Diagnostic Procedure ...........................................173
DTC P1843 ATF PRESSURE SWITCH 3 ...............174
Description ............................................................174
CONSULT-II Reference Value ..............................174
On Board Diagnosis Logic ....................................174
Possible Cause .....................................................174
DTC Confirmation Procedure ...............................174
Diagnostic Procedure ...........................................175
DTC P1845 ATF PRESSURE SWITCH 5 ...............176
Description ............................................................176
CONSULT-II Reference Value ..............................176
On Board Diagnosis Logic ....................................176
Possible Cause .....................................................176
DTC Confirmation Procedure ...............................176
Diagnostic Procedure ...........................................177
DTC P1846 ATF PRESSURE SWITCH 6 ...............178
Description ............................................................178
CONSULT-II Reference Value ..............................178
On Board Diagnosis Logic ....................................178
Possible Cause .....................................................178
DTC Confirmation Procedure ...............................178
Diagnostic Procedure ...........................................179
MAIN POWER SUPPLY AND GROUND CIRCUIT .180
Wiring Diagram — AT — MAIN ............................180
Diagnostic Procedure ...........................................181
CLOSED THROTTLE POSITION AND WIDE OPEN
THROTTLE POSITION CIRCUIT ............................184
CONSULT-II Reference Value ..............................184
Diagnostic Procedure ...........................................184
BRAKE SIGNAL CIRCUIT ......................................185
CONSULT-II Reference Value ..............................185
Diagnostic Procedure ...........................................185
A/T INDICATOR CIRCUIT .......................................186
Description ............................................................186
CONSULT-II Reference Value ..............................186
Diagnostic Procedure ...........................................186
TROUBLE DIAGNOSIS FOR SYMPTOMS ............187
Wiring Diagram — AT — NONDTC ......................187
A/T CHECK Indicator Lamp Does Not Come On . 190
Engine Cannot Be Started in “P” or “N” Position ..190
In “P” Position, Vehicle Moves When Pushed ......191
In “N” Position, Vehicle Moves ..............................192
Large Shock (“N” to “D” Position) .........................193
Vehicle Does Not Creep Backward in “R” Position .195
Vehicle Does Not Creep Forward in “D” Position . 197
Vehicle Cannot Be Started from D
1 ......................199
A/T Does Not Shift: D
1 D2 ................................201
A/T Does Not Shift: D
2 D3 ................................203
A/T Does Not Shift: D
3 D4 ................................205
A/T Does Not Shift: D
4 D5 ................................207
A/T Does Not Lock-Up ..........................................209
A/T Does Not Hold Lock-Up Condition .................210
Lock-Up Is Not Released ......................................212
Engine Speed Does Not Return to Idle ................212
Cannot Be Changed to Manual Mode ..................213
A/T Does Not Shift: 5th Gear
4th Gear ............214

AT-4Revision: 2006 January2006 M35/M45 A/T Does Not Shift: 4th Gear
3rd Gear ............215
A/T Does Not Shift: 3rd Gear
2nd Gear ...........217
A/T Does Not Shift: 2nd Gear
1st Gear ............218
Vehicle Does Not Decelerate by Engine Brake ....220
SHIFT CONTROL SYSTEM ....................................222
Control Device Removal and Installation ..............222
Control Rod Removal and Installation ..................226
Adjustment of A/T Position ...................................227
Checking of A/T Position ......................................228
A/T SHIFT LOCK SYSTEM .....................................229
Description ............................................................229
Shift Lock System Electrical Parts Location .........229
Wiring Diagram — AT — SHIFT ...........................230
Diagnostic Procedure ...........................................232
ON-VEHICLE SERVICE ..........................................236
C o n t r o l V a l v e W i t h T C M a n d A / T F l u i d Te m p e r a t u r e
Sensor 2 ...............................................................236
Parking Components (2WD Models Only) ............248
Rear Oil Seal (VQ35DE Models Only) ..................260
Revolution Sensor Components (2WD Models
Only) .....................................................................261
AIR BREATHER HOSE ...........................................269
Removal and Installation ......................................269
TRANSMISSION ASSEMBLY ................................271
Removal and Installation (2WD Models) ..............271
Removal and Installation (AWD Models) ..............275
OVERHAUL .............................................................278
Components .........................................................278Oil Channel ...........................................................292
Locations of Adjusting Shims, Needle Bearings,
Thrust Washers and Snap Rings ..........................295
DISASSEMBLY .......................................................298
Disassembly ..........................................................298
REPAIR FOR COMPONENT PARTS ......................318
Oil Pump ...............................................................318
Front Sun Gear, 3rd One-Way Clutch ...................321
Front Carrier, Input Clutch, Rear Internal Gear .....323
Mid Sun Gear, Rear Sun Gear, High and Low
Reverse Clutch Hub ..............................................329
High and Low Reverse Clutch ..............................335
Direct Clutch .........................................................337
ASSEMBLY .............................................................340
Assembly (1) .........................................................340
Adjustment ............................................................356
Assembly (2) .........................................................358
SERVICE DATA AND SPECIFICATIONS (SDS) ....365
General Specifications ......................................... .365
Vehicle Speed at Which Gear Shifting Occurs ......365
Vehicle Speed at Which Lock-Up Occurs/Releases .366
Stall Speed ............................................................366
Line Pressure ........................................................366
A/T Fluid Temperature Sensor ..............................366
Turbine Revolution Sensor ....................................367
Vehicle Speed Sensor A/T (Revolution Sensor) ...367
Reverse Brake ......................................................367
Total End Play .......................................................367

PRECAUTIONS
AT-9
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Clean or replace ATF cooler if excessive foreign material is found in oil pan or clogging strainer. Refer to
AT- 9 , "
ATF COOLER SERVICE" .
After overhaul, refill the transmission with new ATF.
When the A/T drain plug is removed, only some of the ATF is drained. Old ATF will remain in torque con-
verter and ATF cooling system.
Always follow the procedures under “Changing A/T Fluid” in the AT section when changing A/T fluid. Refer
to AT- 1 2 , "
Changing A/T Fluid" , AT- 1 3 , "Checking A/T Fluid" .
Service Notice or PrecautionsNCS001JF
ATF COOLER SERVICE
If ATF contains frictional material (clutches, bands, etc.), or if an A/T is repaired, overhauled, or replaced,
inspect and clean the A/T fluid cooler mounted in the radiator or replace the radiator. Flush cooler lines using
cleaning solvent and compressed air after repair. For A/T fluid cooler cleaning procedure, refer to AT- 1 4 , "
A/T
Fluid Cooler Cleaning" . For radiator replacement, refer to CO-14, "RADIATOR" (for VQ35DE engine), CO-43,
"RADIATOR" (for VK45DE engine).
OBD-II SELF-DIAGNOSIS
A/T self-diagnosis is performed by the TCM in combination with the ECM. The results can be read through
the blinking pattern of the A/T CHECK indicator or the malfunction indicator lamp (MIL). Refer to the table
on AT- 9 2 , "
SELF-DIAGNOSTIC RESULT MODE" for the indicator used to display each self-diagnostic
result.
The self-diagnostic results indicated by the MIL are automatically stored in both the ECM and TCM mem-
ories.
Always perform the procedure on AT- 4 1 , "
HOW TO ERASE DTC" to complete the repair and avoid
unnecessary blinking of the MIL.
For details of OBD-II, refer to EC-54, "
ON BOARD DIAGNOSTIC (OBD) SYSTEM" (for VQ35DE engine), EC-
764, "ON BOARD DIAGNOSTIC (OBD) SYSTEM" (for VK45DE engine).
Certain systems and components, especially those related to OBD, may use the new style slide-
locking type harness connector. For description and how to disconnect, refer to PG-102, "
HAR-
NESS CONNECTOR" .

AT-12
A/T FLUID
Revision: 2006 January2006 M35/M45
A/T FLUIDPFP:KLE40
Changing A/T FluidNCS001JI
1. Warm up ATF.
2. Stop engine.
3. Loosen the level gauge bolt.
4. Drain ATF from drain plug and refill with new ATF. Always refill
same volume with drained ATF.
To replace the ATF, pour in new ATF at the A/T fluid charging
pipe with the engine idling and at the same time drain the old
ATF from the radiator cooler hose return side.
When the color of the ATF coming out is about the same as
the color of the new ATF, the replacement is complete. The
amount of new ATF to use should be 30 to 50% increase of
the stipulated amount.
CAUTION:
Use only Genuine NISSAN Matic J ATF. Do not mix with other ATF.
Using ATF other than Genuine NISSAN Matic J ATF will cause deterioration in driveability and A/
T durability, and may damage the A/T, which is not covered by the warranty.
When filling ATF, take care not to scatter heat generating parts such as exhaust.
Do not reuse drain plug gasket.
5. Run engine at idle speed for 5 minutes.
6. Check A/T fluid level and condition. Refer to AT- 1 3 , "
Checking A/T Fluid" . If ATF is still dirty, repeat step 2.
through 5.
7. Install the removed A/T fluid level gauge into A/T fluid charging pipe.
8. Tighten the level gauge bolt.ATF: Genuine NISSAN Matic J ATF
Fluid capacity:
10.3 (10-7/8 US qt, 9-1/8 lmp qt)
Drain plug
: 34 Nꞏm (3.5 kg-m, 25 ft-lb)
Level gauge bolt
: 5.1 Nꞏm (0.52 kg-m, 45 in-lb)
SCIA4896E

A/T FLUID
AT-13
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Checking A/T FluidNCS001JJ
1. Warm up engine.
2. Check for A/T fluid leakage.
3. Loosen the level gauge bolt.
4. Before driving, A/T fluid level can be checked at A/T fluid tem-
peratures of 30 to 50
C (86 to 122F) using “COLD” range on A/
T fluid level gauge as follows.
a. Park vehicle on level surface and set parking brake.
b. Start engine and move selector lever through each gear posi-
tion. Leave selector lever in “P” position.
c. Check A/T fluid level with engine idling.
d. Remove A/T fluid level gauge and wipe clean with lint-free
paper.
CAUTION:
When wiping away the A/T fluid level gauge, always use
lint-free paper, not a cloth one.
e. Re-insert A/T fluid level gauge into A/T fluid charging pipe as far as it will go.
CAUTION:
To check A/T fluid level, insert the A/T fluid level gauge until the cap contacts the end of the A/T
fluid charging pipe, with the A/T fluid level gauge reversed from the normal attachment conditions.
f. Remove A/T fluid level gauge and note reading. If reading is at low side of range, add ATF to the A/T fluid
charging pipe.
CAUTION:
Do not overfill.
5. Drive vehicle for approximately 5 minutes in urban areas.
6. Make the A/T fluid temperature approximately 65
C (149F).
NOTE:
A/T fluid level will be greatly affected by temperature as shown in figure. Therefore, be certain to
perform operation while checking data with CONSULT-II.
a. Connect CONSULT-II to data link connector. Refer to AT- 9 2 , "
CONSULT-II SETTING PROCEDURE" .
b. Select “MAIN SIGNALS” in “DATA MONITOR” mode for “A/T” with CONSULT-II.
c. Read out the value of “ATF TEMP 1”.
7. Re-check A/T fluid level at A/T fluid temperatures of approximately 65
C (149F) using “HOT” range on A/
T fluid level gauge.
SCIA7120E
SLIA0016E

AT-14
A/T FLUID
Revision: 2006 January2006 M35/M45
CAUTION:
When wiping away the A/T fluid level gauge, always use lint-free paper, not a cloth one.
To check A/T fluid level, insert the A/T fluid level gauge
until the cap contacts the end of the A/T fluid charging
pipe, with the A/T fluid level gauge reversed from the nor-
mal attachment conditions as shown.
8. Check A/T fluid condition.
If ATF is very dark or smells burned, check operation of A/T.
Flush cooling system after repair of A/T.
If A/T fluid contains frictional material (clutches, bands, etc.),
replace radiator and flush cooler line using cleaning solvent
and compressed air after repair of A/T. Refer to CO-14,
"RADIATOR" (for VQ35DE engine), CO-43, "RADIATOR"
(for VK45DE engine) and AT- 1 4 , "A/T Fluid Cooler Cleaning" .
9. Install the removed A/T fluid level gauge in the A/T fluid charging
pipe.
10. Tighten level gauge bolt.
A/T Fluid Cooler CleaningNCS001JK
Whenever an A/T is replaced, the A/T fluid cooler mounted in the radiator must be inspected and cleaned.
Metal debris and friction material, if present, can become trapped in the A/T fluid cooler. This debris can con-
taminate the newly serviced A/T or, in severe cases, can block or restrict the flow of ATF. In either case, mal-
function of the newly serviced A/T may result.
Debris, if present, may build up as ATF enters the cooler inlet. It will be necessary to back flush the cooler
through the cooler outlet in order to flush out any built up debris.
A/T FLUID COOLER CLEANING PROCEDURE
1. Position an oil pan under the A/T inlet and outlet cooler hoses.
2. Identify the inlet and outlet fluid cooler hoses.
3. Disconnect the A/T fluid cooler inlet and outlet rubber hoses
from the steel cooler tubes or bypass valve.
NOTE:
Replace the cooler hoses if rubber material from the hose
remains on the tube fitting.
4. Allow any ATF that remains in the cooler hoses to drain into the
oil pan.Level gauge bolt
: 5.1 Nꞏm (0.52 kg-m, 45 in-lb)
SCIA2899E
SCIA4896E
SCIA3830E