2007 NISSAN 350Z check engine

AT-44
TROUBLE DIAGNOSIS
Revision: 2006 November2007 350Z
DIAGNOSTIC WORKSHEET
Information from Customer
KEY POINTS

WHAT..... Vehicle & A/T model

WHEN..... Date, Frequencies

WHERE..... Road conditions

HOW..... Operating conditions, Symptoms
Diagnostic Worksheet Chart
Customer name MR/MS Model & Year VIN
Trans. Model Engine Mileage
Incident Date Manuf. Date In Service Date
Frequency❏ Continuous❏ Intermittent ( times a day)
Symptoms❏ Vehicle does not move. (❏ Any position❏ Particular position)
❏ No up-shift (❏ 1st → 2nd❏ 2nd → 3rd❏ 3rd → 4th ❏ 4th → 5th)
❏ No down-shift (❏ 5th → 4th ❏ 4th → 3rd❏ 3rd → 2nd❏ 2nd → 1st)
❏ Lock-up malfunction
❏ Shift point too high or too low.
❏ Shift shock or slip (❏ N → D❏ Lock-up❏ Any drive position)
❏ Noise or vibration
❏ No kick down
❏ No pattern select
❏ Others
()
A/T CHECK indicator lamp❏ Continuously lit❏ Not lit
Malfunction indicator lamp (MIL)❏ Continuously lit❏ Not lit
1❏ Read the item on cautions concerning fail-safe and understand the customer's complaint.AT- 4 0
2❏ A/T fluid inspectionAT- 4 9❏ Leak (Repair leak location.)
❏ State
❏ Amount
3❏ Stall test and line pressure testAT- 4 9
,
AT- 5 0
❏ Stall test
❏ Torque converter one-way clutch
❏ Front brake
❏ High and low reverse clutch
❏ Low coast brake
❏ Forward brake
❏ Reverse brake
❏ Forward one-way clutch❏ 1st one-way clutch
❏ 3rd one-way clutch
❏ Engine
❏ Line pressure low
❏ Except for input clutch and direct
clutch, clutches and brakes OK
❏ Line pressure inspection - Suspected part:

TROUBLE DIAGNOSIS
AT-45
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Revision: 2006 November2007 350Z
4❏ Perform all road tests and enter checks in required inspection items.AT- 5 2
4-1.Check before engine is started AT- 5 3
❏ AT- 1 7 2 , "A/T Check Indicator Lamp Does Not Come On"
❏ Perform self-diagnostics. Enter checks for detected items. AT- 8 6 , AT- 9 2
❏ AT-94, "DTC U1000 CAN COMMUNICATION LINE"
❏ AT-97, "DTC P0615 START SIGNAL CIRCUIT"
❏ AT-101, "DTC P0700 TCM"
❏ AT-102, "DTC P0705 PARK/NEUTRAL POSITION SWITCH"
❏ AT-106, "DTC P0717 TURBINE REVOLUTION SENSOR"
❏ AT-108, "DTC P0720 VEHICLE SPEED SENSOR A/T (REVOLUTION SENSOR)"
❏ AT-113, "DTC P0725 ENGINE SPEED SIGNAL"
❏ AT-115, "DTC P0731 A/T 1ST GEAR FUNCTION"
❏ AT-117, "DTC P0732 A/T 2ND GEAR FUNCTION"
❏ AT-119, "DTC P0733 A/T 3RD GEAR FUNCTION"
❏ AT-121, "DTC P0734 A/T 4TH GEAR FUNCTION"
❏ AT-123, "DTC P0735 A/T 5TH GEAR FUNCTION"
❏ AT-125, "DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE"
❏ AT-127, "DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP)"
❏ AT-129, "DTC P0745 LINE PRESSURE SOLENOID VALVE"
❏ AT-131, "DTC P1705 THROTTLE POSITION SENSOR"
❏ AT-134, "DTC P1710 A/T FLUID TEMPERATURE SENSOR CIRCUIT"
❏ AT-139, "DTC P1721 VEHICLE SPEED SENSOR MTR"
❏ AT-141, "DTC P1730 A/T INTERLOCK"
❏ AT-143, "DTC P1731 A/T 1ST ENGINE BRAKING"
❏ AT-145, "DTC P1752 INPUT CLUTCH SOLENOID VALVE"
❏ AT-147, "DTC P1757 FRONT BRAKE SOLENOID VALVE"
❏ AT-149, "DTC P1762 DIRECT CLUTCH SOLENOID VALVE"
❏ AT-151, "DTC P1767 HIGH AND LOW REVERSE CLUTCH SOLENOID VALVE"
❏ AT-153, "DTC P1772 LOW COAST BRAKE SOLENOID VALVE"
❏ AT-155, "DTC P1774 LOW COAST BRAKE SOLENOID VALVE FUNCTION"
❏ AT-157, "DTC P1815 MANUAL MODE SWITCH"
4-2.Check at IdleAT- 5 3
❏ AT- 1 7 3 , "Engine Cannot Be Started in “P” or “N” Position"
❏ AT- 1 7 3 , "In “P” Position, Vehicle Moves When Pushed"
❏ AT- 1 7 4 , "In “N” Position, Vehicle Moves"
❏ AT- 1 7 5 , "Large Shock (“N” to “D” Position)"
❏ AT- 1 7 7 , "Vehicle Does Not Creep Backward in “R” Position"
❏ AT- 1 7 9 , "Vehicle Does Not Creep Forward in “D” Position"
4-3.Cruise testAT- 5 5
Part 1
❏ AT- 1 8 1 , "
Vehicle Cannot Be Started from D1"
❏ AT- 1 8 3 , "A/T Does Not Shift: D1 → D2"
❏ AT- 1 8 5 , "A/T Does Not Shift: D2 → D3"
❏ AT- 1 8 7 , "A/T Does Not Shift: D3 → D4"
❏ AT- 1 8 9 , "A/T Does Not Shift: D4 → D5"
❏ AT- 1 9 1 , "A/T Does Not Lock-up"
❏ AT- 1 9 3 , "A/T Does Not Hold Lock-up Condition"
❏ AT- 1 9 4 , "Lock-up Is Not Released"
❏ AT- 1 9 5 , "Engine Speed Does Not Return to Idle"

AT-46
TROUBLE DIAGNOSIS
Revision: 2006 November2007 350Z
44-3.Part 2AT- 5 7
❏ AT-181, "Vehicle Cannot Be Started from D1"
❏ AT-183, "A/T Does Not Shift: D1 → D2"
❏ AT-185, "A/T Does Not Shift: D2 → D3"
❏ AT-187, "A/T Does Not Shift: D3 → D4"
Part 3AT- 5 8
❏ AT-196, "Cannot Be Changed to Manual Mode"
❏ AT-196, "A/T Does Not Shift: 5th Gear → 4th Gear"
❏ AT-198, "A/T Does Not Shift: 4th Gear → 3rd Gear"
❏ AT-199, "A/T Does Not Shift: 3rd Gear → 2nd Gear"
❏ AT-201, "A/T Does Not Shift: 2nd Gear → 1st Gear"
❏ AT-202, "Vehicle Does Not Decelerate by Engine Brake"
❏ Perform self-diagnostics. Enter checks for detected items. AT- 8 6 , AT- 9 2
❏ AT- 9 4 , "DTC U1000 CAN COMMUNICATION LINE"
❏ AT- 9 7 , "DTC P0615 START SIGNAL CIRCUIT"
❏ AT-101, "DTC P0700 TCM"
❏ AT-102, "DTC P0705 PARK/NEUTRAL POSITION SWITCH"
❏ AT-106, "DTC P0717 TURBINE REVOLUTION SENSOR"
❏ AT-108, "DTC P0720 VEHICLE SPEED SENSOR A/T (REVOLUTION SENSOR)"
❏ AT- 11 3 , "DTC P0725 ENGINE SPEED SIGNAL"
❏ AT- 11 5 , "DTC P0731 A/T 1ST GEAR FUNCTION"
❏ AT- 11 7 , "DTC P0732 A/T 2ND GEAR FUNCTION"
❏ AT- 11 9 , "DTC P0733 A/T 3RD GEAR FUNCTION"
❏ AT-121, "DTC P0734 A/T 4TH GEAR FUNCTION"
❏ AT-123, "DTC P0735 A/T 5TH GEAR FUNCTION"
❏ AT-125, "DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE"
❏ AT-127, "DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP)"
❏ AT-129, "DTC P0745 LINE PRESSURE SOLENOID VALVE"
❏ AT-131, "DTC P1705 THROTTLE POSITION SENSOR"
❏ AT-134, "DTC P1710 A/T FLUID TEMPERATURE SENSOR CIRCUIT"
❏ AT-139, "DTC P1721 VEHICLE SPEED SENSOR MTR"
❏ AT-141, "DTC P1730 A/T INTERLOCK"
❏ AT-143, "DTC P1731 A/T 1ST ENGINE BRAKING"
❏ AT-145, "DTC P1752 INPUT CLUTCH SOLENOID VALVE"
❏ AT-147, "DTC P1757 FRONT BRAKE SOLENOID VALVE"
❏ AT-149, "DTC P1762 DIRECT CLUTCH SOLENOID VALVE"
❏ AT-151, "DTC P1767 HIGH AND LOW REVERSE CLUTCH SOLENOID VALVE"
❏ AT-153, "DTC P1772 LOW COAST BRAKE SOLENOID VALVE"
❏ AT-155, "DTC P1774 LOW COAST BRAKE SOLENOID VALVE FUNCTION"
❏ AT-157, "DTC P1815 MANUAL MODE SWITCH"
5❏ Inspect each system for items found to be NG in the self-diagnostics and repair or replace the malfunctioning parts.
6❏ Perform all road tests and enter the checks again for the required items.AT- 5 2
7❏ For any remaining NG items, perform the “diagnostics procedure” and repair or replace the malfunctioning
parts. See the chart for diagnostics by symptoms. (This chart also contains other symptoms and inspection pro-
cedures.)AT- 5 9
8❏ Erase the results of the self-diagnostics from TCM and ECM.AT- 9 3,
AT- 3 8

TROUBLE DIAGNOSIS
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Revision: 2006 November2007 350Z
Inspections Before Trouble DiagnosisNCS00024
A/T FLUID CHECK
A/T Fluid Leakage and A/T Fluid Level Check
Inspect for A/T fluid leakage and check the A/T fluid level. Refer to AT- 1 2 , "Checking A/T Fluid" .
A/T Fluid Condition Check
Inspect the A/T fluid condition.
STALL TEST
Stall Test Procedure
1. Inspect the amount of engine oil. Replenish the engine oil if necessary.
2. Drive for about 10 minutes to warm up the vehicle so that the A/
T fluid temperature is 50 to 80°C (122 to 176°F). Inspect the
amount of ATF. Replenish if necessary.
3. Securely engage the parking brake so that the tires do not turn.
4. Engine start, apply foot brake, and place selector lever in “D”
position.
5. While holding down the foot brake, gradually press down accel-
erator pedal.
6. Quickly read off the stall speed, then quickly remove your foot
from accelerator pedal.
CAUTION:
Do not hold down accelerator pedal for more than 5 sec-
onds during this test.
7. Move selector lever to “N” position.
Fluid condition Conceivable Cause Required Operation
Varnished (viscous
varnish state)Clutch, brake
scorchedReplace the ATF and check the A/
T main unit and the vehicle for
malfunctions (wire harnesses,
cooler pipes, etc.)
Milky white or cloudy Water in the fluidReplace the ATF and check for
places where water is getting in.
Large amount of metal
powder mixed inUnusual wear of
sliding parts within
A/TReplace the ATF and check for
improper operation of the A/T.
SAT638A
SAT647B
SAT513G
Stall speed: 2,700 – 3,000 rpm
SAT514G

AT-52
TROUBLE DIAGNOSIS
Revision: 2006 November2007 350Z
Judgment of Line Pressure Test
ROAD TEST
Description

The road test inspects overall performance of A/T and analyzes possible malfunction causes.

The road test is performed in the following three stages.
1. Check before engine is started. Refer to AT- 5 3 , "
Check Before Engine is Started" .
2. Check at idle. Refer to AT- 5 3 , "
Check at Idle" .
3. Cruise test
–Inspect all the items from Part 1 to Part 3. Refer to AT- 5 5 , "Cruise Test — Part 1" , AT- 5 7 , "Cruise Test —
Part 2" and AT- 5 8 , "Cruise Test — Part 3" .

Before beginning the road test, check the test procedure and inspection items.

Test all inspection items until the symptom is uncovered. Diagnose NG items when all road tests are com-
plete.
Judgment Possible cause
Idle speedLow for all positions
(“P”, “R”, “N”, “D”, “M”)Possible causes include malfunctions in the pressure supply system and low oil pump output.
For example

Oil pump wear

Pressure regulator valve or plug sticking or spring fatigue

Oil strainer
oil pump
pressure regulator valve passage oil leak

Engine idle speed too low
Only low for a specific
positionPossible causes include an oil pressure leak in a passage or device related to the position after
the pressure is distributed by the manual valve.
HighPossible causes include a sensor malfunction or malfunction in the line pressure adjustment
function.
For example

Accelerator pedal position signal malfunction

A/T fluid temperature sensor malfunction

Line pressure solenoid malfunction (sticking in OFF state, filter clog, cut line)

Pressure regulator valve or plug sticking
Stall speedLine pressure does
not rise higher than
the line pressure for
idle.Possible causes include a sensor malfunction or malfunction in the pressure adjustment func-
tion.
For example

Accelerator pedal position signal malfunction

TCM breakdown

Line pressure solenoid malfunction (shorting, sticking in ON state)

Pressure regulator valve or plug sticking

Pilot valve sticking or pilot filter clogged
The pressure rises,
but does not enter the
standard position.Possible causes include malfunctions in the pressure supply system and malfunction in the
pressure adjustment function.
For example

Accelerator pedal position signal malfunction

Line pressure solenoid malfunction (sticking, filter clog)

Pressure regulator valve or plug sticking

Pilot valve sticking or pilot filter clogged
Only low for a specific
positionPossible causes include an oil pressure leak in a passage or device related to the position after
the pressure is distributed by the manual valve.

TROUBLE DIAGNOSIS
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Revision: 2006 November2007 350Z
Check Before Engine is StartedNCS00025
1. CHECK A/T CHECK INDICATOR LAMP
1. Park vehicle on level surface.
2. Move selector lever to “P” position.
3. Turn ignition switch OFF and wait at least 10 seconds.
4. Turn ignition switch ON. (Do not start engine.)
Does A/T CHECK indicator lamp light up for about 2 seconds?
YES >> 1. Turn ignition switch OFF.
2. Perform self-diagnostics and record all NG items on the AT- 4 4 , "
DIAGNOSTIC WORKSHEET"
. Refer to AT- 8 6 , "SELF-DIAGNOSTIC RESULT MODE" , AT- 9 2 , "Diagnostic Procedure With-
out CONSULT-III" .
3. Go to AT- 5 3 , "
Check at Idle" .
NO >> Stop the road test and go to AT- 1 7 2 , "
A/T Check Indicator Lamp Does Not Come On" .
Check at IdleNCS00026
1. CHECK STARTING THE ENGINE
1. Park vehicle on level surface.
2. Move selector lever to “P” or “N” position.
3. Turn ignition switch OFF.
4. Start engine.
Does the engine start?
YES >> GO TO 2.
NO >> Stop the road test and go to AT- 1 7 3 , "
Engine Cannot Be Started in “P” or “N” Position" .
2. CHECK STARTING THE ENGINE
1. Turn ignition switch ON. (Do not start engine.)
2. Move selector lever in “D”, “M” or “R” position.
3. Start engine.
Does the engine start in each position?
YES >> Stop the road test and go to AT- 1 7 3 , "Engine Cannot Be Started in “P” or “N” Position" .
NO >> GO TO 3.
3. CHECK “P” POSITION FUNCTIONS
1. Move selector lever to “P” position.
2. Turn ignition switch OFF.
3. Release the parking brake.
4. Push the vehicle forward or backward.
5. Engage the parking brake.
When you push the vehicle with disengaging the parking brake, does it move?
YES >> Enter a check mark at AT- 1 7 3 , "In “P” Position, Vehicle Moves When Pushed" on the AT- 4 4 ,
"DIAGNOSTIC WORKSHEET" , then continue the road test.
NO >> GO TO 4.

AT-54
TROUBLE DIAGNOSIS
Revision: 2006 November2007 350Z
4. CHECK “N” POSITION FUNCTIONS
1. Start engine.
2. Move selector lever to “N” position.
3. Release the parking brake.
Does vehicle move forward or backward?
YES >> Enter a check mark at AT- 1 7 4 , "In “N” Position, Vehicle Moves" on the AT- 4 4 , "DIAGNOSTIC
WORKSHEET" , then continue the road test.
NO >> GO TO 5.
5. CHECK SHIFT SHOCK
1. Engage the brake.
2. Move selector lever to “D” position.
When the A/T is shifted from
“N” to “D”, is there an excessive shock?
YES >> Enter a check mark at AT- 1 7 5 , "Large Shock (“N” to “D” Position)" on the AT- 4 4 , "DIAGNOSTIC
WORKSHEET" , then continue the road test.
NO >> GO TO 6.
6. CHECK “R” POSITION FUNCTIONS
1. Engage the brake.
2. Move selector lever to “R” position.
3. Release the brake for 4 to 5 seconds.
Does the vehicle creep backward?
YES >> GO TO 7.
NO >> Enter a check mark at AT- 1 7 7 , "
Vehicle Does Not Creep Backward in “R” Position" on the AT- 4 4 ,
"DIAGNOSTIC WORKSHEET" , then continue the road test.
7. CHECK “D” POSITION FUNCTIONS
Inspect whether the vehicle creep forward when the A/T is put into the “D” position.
Does the vehicle creep forward in the
“D” position?
YES >> Go to AT- 5 5 , "Cruise Test — Part 1" , AT- 5 7 , "Cruise Test — Part 2" and AT- 5 8 , "Cruise Test —
Part 3" .
NO >> Enter a check mark at AT- 1 7 9 , "
Vehicle Does Not Creep Forward in “D” Position" on the AT- 4 4 ,
"DIAGNOSTIC WORKSHEET" , then continue the road test. Go to AT- 5 5 , "Cruise Test — Part 1"
, AT- 5 7 , "Cruise Test — Part 2" and AT- 5 8 , "Cruise Test — Part 3" .

TROUBLE DIAGNOSIS
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Revision: 2006 November2007 350Z
Cruise Test — Part 1NCS00027
1. CHECK STARTING OUT FROM D1
1. Drive the vehicle for about 10 minutes to warm up the engine oil and ATF.
Appropriate temperature for the ATF: 50 to 80°C (122 to 176°F)
2. Park the vehicle on a level surface.
3. Move selector lever to “P” position.
4. Start engine.
5. Move selector lever to “D” position.
6. Press the accelerator pedal about half-way down to accelerate the vehicle.
With CONSULT-III
Read the gear position. Refer to AT- 8 8 , "
DATA MONITOR MODE" .
Starts from D
1 ?
YES >> GO TO 2.
NO >> Enter a check mark at AT- 1 8 1 , "
Vehicle Cannot Be Started from D1" on the AT- 4 4 , "DIAGNOSTIC
WORKSHEET" , then continue the road test.
2. CHECK SHIFT-UP D1 → D2
Press down the accelerator pedal about half-way and inspect if the vehicle shifts up (D1 → D2 ) at the appro-
priate speed. Refer to AT- 5 8 , "
Vehicle Speed at When Gears Shifting Occurs" .
With CONSULT-III
Read the gear position, throttle position, and vehicle speed. Refer to AT- 8 8 , "
DATA MONITOR MODE" .
Does the A/T shift
-up D1 → D2 at the correct speed?
YES >> GO TO 3.
NO >> Enter a check mark at AT- 1 8 3 , "
A/T Does Not Shift: D1 → D2" on the AT- 4 4 , "DIAGNOSTIC
WORKSHEET" , then continue the road test.
3. CHECK SHIFT-UP D2 → D3
Press down the accelerator pedal about half-way and inspect if the vehicle shifts up (D2 → D3 ) at the appro-
priate speed. Refer to AT- 5 8 , "
Vehicle Speed at When Gears Shifting Occurs" .
With CONSULT-III
Read the gear position, throttle position, and vehicle speed. Refer to AT- 8 8 , "
DATA MONITOR MODE" .
Does the A/T shift-up D
2 → D3 at the correct speed?
YES >> GO TO 4.
NO >> Enter a check mark at AT- 1 8 5 , "
A/T Does Not Shift: D2 → D3" on the AT- 4 4 , "DIAGNOSTIC
WORKSHEET" , then continue the road test.
4. CHECK SHIFT-UP D3 → D4
Press down the accelerator pedal about half-way and inspect if the vehicle shifts up (D3 → D4 ) at the appro-
priate speed. Refer to AT- 5 8 , "
Vehicle Speed at When Gears Shifting Occurs" .
With CONSULT-III
Read the gear position, throttle position, and vehicle speed. Refer to AT- 8 8 , "
DATA MONITOR MODE" .
Does the A/T shift-up D
3 → D4 at the correct speed?
YES >> GO TO 5.
NO >> Enter a check mark at AT- 1 8 7 , "
A/T Does Not Shift: D3 → D4" on the AT- 4 4 , "DIAGNOSTIC
WORKSHEET" , then continue the road test.