2007 INFINITI M35 ECO mode

AT-176
DTC P1845 ATF PRESSURE SWITCH 5
Revision: 2007 April2007 M35/M45
DTC P1845 ATF PRESSURE SWITCH 5PFP:25240
DescriptionNCS001PD
Fail-safe function to detect direct clutch solenoid valve condition.
CONSULT-II Reference ValueNCS001PE
On Board Diagnosis LogicNCS001PF

This is not an OBD-II self-diagnostic item.

Diagnostic trouble code “P1845 ATF PRES SW 5/CIRC” with CONSULT-II is detected when TCM detects
that actual gear ratio is normal, and relation between gear position and condition of ATF pressure switch 5
is irregular during depressing accelerator pedal. (Other than during shift change.)
Possible CauseNCS001PG

ATF pressure switch 5

Harness or connectors
(Switch circuit is open or shorted.)
DTC Confirmation ProcedureNCS001PH
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Start engine.
2. Accelerate vehicle to maintain the following conditions.
ACCELE POSI: 1.5/8 - 2.0/8
SLCT LVR POSI: “D” position
GEAR: “1”
“2” (D/C ON/OFF)
Driving location: Driving the vehicle uphill (increased
engine load) will help maintain the driving conditions
required for this test.
3. Perform step 2 again.
4. Turn ignition switch OFF, then perform step 1 to 3 again.
5. Check “SELF-DIAG RESULTS” mode for “A/T” with CONSULT-
II.
If DTC (P1845) is detected, go to AT- 1 7 7 , "
Diagnostic Procedure" .
If DTC (P1762) is detected, go to AT- 1 5 6 , "
Diagnostic Procedure" .
Item name Condition Display value
ATF PRES SW 5Direct clutch engaged. Refer to AT- 2 1
.ON
Direct clutch disengaged. Refer to AT- 2 1
.OFF
BCIA0030E

AT-178
DTC P1846 ATF PRESSURE SWITCH 6
Revision: 2007 April2007 M35/M45
DTC P1846 ATF PRESSURE SWITCH 6PFP:25240
DescriptionNCS001PJ
Fail-safe function to detect high and low reverse clutch solenoid valve condition.
CONSULT-II Reference ValueNCS001PK
On Board Diagnosis LogicNCS001PL

This is not an OBD-II self-diagnostic item.

Diagnostic trouble code “P1846 ATF PRES SW 6/CIRC” with CONSULT-II is detected when TCM detects
that actual gear ratio is normal, and relation between gear position and condition of ATF pressure switch 6
is irregular during depressing accelerator pedal. (Other than during shift change.)
Possible CauseNCS001PM

ATF pressure switch 6

Harness or connectors
(Switch circuit is open or shorted.)
DTC Confirmation ProcedureNCS001PN
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Start engine.
2. Accelerate vehicle to maintain the following conditions.
ACCELE POSI: 1.5/8 - 2.0/8
SLCT LVR POSI: “D” position
GEAR: “2”
“3” (HLR/C ON/OFF)
Driving location: Driving the vehicle uphill (increased
engine load) will help maintain the driving conditions
required for this test.
3. Perform step 2 again.
4. Turn ignition switch OFF, then perform step 1 to 3 again.
5. Check “SELF-DIAG RESULTS” mode for “A/T” with CONSULT-
II.
If DTC (P1846) is detected, go to AT- 1 7 9 , "
Diagnostic Procedure" .
If DTC (P1767) is detected, go to AT- 1 6 0 , "
Diagnostic Procedure" .
Item name Condition Display value
ATF PRES SW 6High and low reverse clutch engaged. Refer to AT- 2 1
.ON
High and low reverse clutch disengaged Refer to AT- 2 1
.OFF
BCIA0030E

AT-190
TROUBLE DIAGNOSIS FOR SYMPTOMS
Revision: 2007 April2007 M35/M45
TCM terminals and data are reference value. Measured between each terminal and ground.
A/T CHECK Indicator Lamp Does Not Come OnNCS001PZ
SYMPTOM:
A/T CHECK indicator lamp does not come on for about 2 seconds when turning ignition switch to ON.
DIAGNOSTIC PROCEDURE
1. CHECK CAN COMMUNICATION LINE
Perform self-diagnosis. Refer to AT- 9 2 , "
SELF-DIAGNOSTIC RESULT MODE" , AT- 1 0 3 , "TCM SELF-DIAG-
NOSTIC PROCEDURE (NO TOOLS)" .
Is a malfunction in the CAN communication indicated in the results?
YES >> Check CAN communication line. Refer to AT- 1 0 5 , "DTC U1000 CAN COMMUNICATION LINE" .
NO >> GO TO 2.
2. CHECK A/T CHECK INDICATOR LAMP CIRCUIT
Check combination meters. Refer to DI-5, "
COMBINATION METERS" .
OK or NG
OK >> GO TO 3
NG >> Repair or replace damaged parts.
3. CHECK TCM POWER SUPPLY AND GROUND CIRCUIT
Check TCM power supply and ground circuit. Refer to AT- 1 8 0 , "
MAIN POWER SUPPLY AND GROUND CIR-
CUIT" .
OK or NG
OK >>INSPECTION END
NG >> Repair or replace damaged parts.
Engine Cannot Be Started in “P” or “N” PositionNCS001Q0
SYMPTOM:

Engine cannot be started with selector lever in “P” or “N” position.

Engine can be started with selector lever in “D”or “R” position.
DIAGNOSTIC PROCEDURE
1. CHECK PNP SWITCH CIRCUIT
Perform self-diagnosis. Refer to AT- 9 2 , "
SELF-DIAGNOSTIC RESULT MODE" , AT- 1 0 3 , "TCM SELF-DIAG-
NOSTIC PROCEDURE (NO TOOLS)" .
Do the self-diagnostic results indicate PNP switch?
YES >> Check malfunctioning system. Refer to AT- 11 3 , "DTC P0705 PARK/NEUTRAL POSITION
SWITCH" .
NO >> GO TO 2.
Terminal Item Condition Data (Approx.)
3CAN-H – –
4K-line (CONSULT-II
signal)The terminal is connected to the data link connector for CONSULT-II. –
7 Back-up lamp relaySelector lever in “R” position. 0 V
Selector lever in other positions. Battery voltage
8CAN-L – –

AT-210
TROUBLE DIAGNOSIS FOR SYMPTOMS
Revision: 2007 April2007 M35/M45
6. CHECK A/T FLUID CONDITION
1. Remove oil pan. Refer to AT- 2 3 6 , "
Control Valve With TCM and A/T Fluid Temperature Sensor 2" .
2. Check A/T fluid condition. Refer to AT- 5 3 , "
A/T Fluid Condition Check" .
OK or NG
OK >> GO TO 7.
NG >> GO TO 10.
7. DETECT MALFUNCTIONING ITEM
Check malfunction items. If any items are damaged, repair or replace damaged parts. Refer to AT- 6 4 , "
Symp-
tom Chart" (Symptom No.24).
OK or NG
OK >> GO TO 8.
NG >> Repair or replace damaged parts.
8. CHECK SYMPTOM
Check again. Refer to AT- 5 9 , "
Cruise Test - Part 1" .
OK or NG
OK >>INSPECTION END
NG >> GO TO 9.
9. CHECK TCM
1. Check TCM input/output signals. Refer to AT- 8 9 , "
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.
10. DETECT MALFUNCTIONING ITEM
Check malfunction items. If any items are damaged, repair or replace damaged parts. Refer to AT- 6 4 , "
Symp-
tom Chart" (Symptom No.24).
OK or NG
OK >> GO TO 8.
NG >> Repair or replace damaged parts.
A/T Does Not Hold Lock-up ConditionNCS001QC
SYMPTOM:
The lock-up condition cannot be maintained for more than 30 seconds.
DIAGNOSTIC PROCEDURE
1. CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis. Refer to AT- 9 2 , "
SELF-DIAGNOSTIC RESULT MODE" , AT- 1 0 3 , "TCM SELF-DIAG-
NOSTIC PROCEDURE (NO TOOLS)" .
Is any malfunction detected by self-diagnostic results?
YES >> Check malfunctioning system. Refer to AT- 9 2 , "SELF-DIAGNOSTIC RESULT MODE" , AT- 1 0 4 ,
"Judgement Self-diagnosis Code" .
NO >> GO TO 2.

AT-250
ON-VEHICLE SERVICE
Revision: 2007 April2007 M35/M45
Parking Components (2WD Models Only)NCS001QU
REMOVAL AND INSTALLATION (VQ35DE MODELS)
Components
Removal
1. Drain ATF through drain plug.
2. Remove exhaust front tube and center muffler with power tool. Refer to EX-5, "
Removal and Installation" .
3. Remove rear propeller shaft. Refer to PR-8, "
Removal and Installation" .
4. Remove control rod. Refer to AT- 2 2 6 , "
Control Rod Removal and Installation" .
5. Support A/T assembly with a transmission jack.
CAUTION:
When setting transmission jack, be careful not to allow it to collide against the drain plug.
6. Remove rear engine mounting member with power tool. Refer to AT- 2 7 4 , "
Removal and Installation (2WD
Models)" .
7. Remove engine mounting insulator (rear). Refer to AT- 2 7 4 , "
Removal and Installation (2WD Models)" .
1. Rear oil seal 2. Rear extension 3. Parking actuator support
4. Return spring 5. Parking pawl 6. Pawl shaft
7. Self-sealing bolt 8. Seal ring 9. Parking gear
10. Output shaft 11. Bearing race 12. Needle bearing
Refer to GI section to make sure icons (symbol marks) in the figure. Refer to GI-11, "
Components" .
However, refer to the following symbols for others.
*:Apply Genuine Anaerobic Liquid Gasket or equivalent. Refer to GI-47, "Recommended Chemical Products and Sealants"
.
SCIA7030E

AT-256
ON-VEHICLE SERVICE
Revision: 2007 April2007 M35/M45
10. Apply recommended sealant (Genuine Anaerobic Liquid Gasket
or equivalent. Refer to GI-47, "
Recommended Chemical Prod-
ucts and Sealants" .) to rear extension assembly as shown in
the figure.
CAUTION:
Completely remove all moisture, oil and old sealant, etc.
from the transmission case and rear extension assembly
mounting surfaces.
11. Install rear extension assembly to transmission case. (With nee-
dle bearing.)
CAUTION:
Insert the tip of parking rod between the parking pawl and
the parking actuator support when assembling the rear
extension assembly.
12. Tighten rear extension assembly bolts to the specified torque.
Refer to AT- 2 5 0 , "
Components" .
CAUTION:
Do not reuse self-sealing bolts.
13. Install engine mounting insulator (rear). Refer to AT- 2 7 4 , "
Removal and Installation (2WD Models)" .
14. Install rear engine mounting member. Refer to AT- 2 7 4 , "
Removal and Installation (2WD Models)" .
15. Install control rod. Refer to AT- 2 2 6 , "
Control Rod Removal and Installation" .
16. Install rear propeller shaft. Refer to PR-8, "
Removal and Installation" .
17. Install exhaust front tube and center muffler. Refer to EX-5, "
Removal and Installation" .
18. Install drain plug to oil pan. Tighten a necessary drain plug with specified torque. Refer to AT- 2 3 6 , "
Control
Valve With TCM and A/T Fluid Temperature Sensor 2" .
CAUTION:
Do not reuse drain plug gasket.
19. Pour ATF into A/T assembly. Refer to AT- 1 2 , "
Changing A/T Fluid" .
SCIA5212E
SCIA3431E
SCIA6941E

ON-VEHICLE SERVICE
AT-257
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: 2007 April2007 M35/M45
REMOVAL AND INSTALLATION (VK45DE MODELS)
Components
Removal
1. Drain ATF through drain plug.
2. Remove exhaust front tube and center muffler with a power tool. Refer to EX-7, "
Removal and installation"
.
3. Remove rear propeller shaft. Refer to PR-8, "
Removal and Installation" .
4. Remove control rod. Refer to AT- 2 2 6 , "
Control Rod Removal and Installation" .
5. Support A/T assembly with a transmission jack.
CAUTION:
When setting transmission jack, be careful not to allow it to collide against the drain plug.
6. Remove rear engine mounting member with a power tool. Refer to AT- 2 7 4 , "
Removal and Installation
(2WD Models)" .
7. Remove engine mounting insulator (rear). Refer to AT- 2 7 4 , "
Removal and Installation (2WD Models)" .
1. Output shaft & companion flange complement 2. Parking actuator support 3. Return spring
4. Parking pawl 5. Pawl shaft 6. Self-sealing bolt
Refer to GI section to make sure icons (symbol marks) in the figure. Refer to GI-11, "
Components" .
However, refer to the following symbols for others.
*:Apply Genuine Anaerobic Liquid Gasket or equivalent. Refer to GI-47, "Recommended Chemical Products and Sealants"
.
SCIA7029E

ON-VEHICLE SERVICE
AT-263
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: 2007 April2007 M35/M45
Revolution Sensor Components (2WD Models Only)NCS001QW
REMOVAL AND INSTALLATION
Components
VQ35DE models
SCIA8043E
1. Rear extension 2. A/T 3. Oil pan gasket
4. Clip 5. Oil pan mounting bolt 6. Oil pan
7. Drain plug 8. Drain plug gasket 9. Revolution sensor
10. Self-sealing bolt
Refer to GI section to make sure icons (symbol marks) in the figure. Refer to GI-11, "
Components" .
However, refer to the following symbols for others.
*:Apply Genuine Anaerobic Liquid Gasket or equivalent. Refer to GI-47, "Recommended Chemical Products and Sealants"
.