check engine NISSAN LATIO 2009 Service Service Manual

AT-200< SERVICE INFORMATION >
TROUBLE DIAGNOSIS FOR SYMPTOMS
1. Turn ignition switch ON. (Do not start engine.)
2. Check voltage between TCM connector terminals and ground while moving selector lever through each position. Refer to AT-92, " Wiring Diagram - AT - PNP/SW " .
B: Battery voltage
0: 0V
OK or NG OK >>
INSPECTION END
NG >> Check PNP switch. Refer to AT-176, " Component Inspection " .
A/T Does Not Shift: 2 2→ 11, When Selector Lever "2" → "1" Position INFOID:0000000004305489
SYMPTOM:
A/T does not shift from 2 2 to 1 1 when changing selector lever from “2” to “1” position on “Cruise Test
— Part 3”.
DIAGNOSTIC PROCEDURE 1.
CHECK PNP SWITCH CIRCUIT
With CONSULT-III
1. Turn ignition switch ON. (Do not start engine.)
2. Select “TCM INPUT SIGNALS” in “DATA MONITO R” mode for “TRANSMISSION” with CONSULT-III.
3. Read out “P·N”, “R”, “D”, “2” and “1” position switches moving selector lever to each position.
OK or NG Selector lever position
Terminal
36 35 34 27 26
“P”, “N” B 0 0 0 0 “R” 0 B 0 0 0
“D” 0 0 B 0 0 “2” 0 0 0 B 0
“1” 0 0 0 0 B SCIA7162E
Monitor item Condition Display value
PN POSI SW When setting selector le
ver to “N” or “P” posi-
tion. ON
When setting selector lever to other positions. OFF
R POSITION SW When setting selector lever to “R” position. ON
When setting selector lever to other positions. OFF
D POSITION SW When setting selector lever to “D” positions. ON
When setting selector lever to other positions. OFF
2 POSITION SW When setting selector lever to “2” position. ON
When setting selector lever to other positions. OFF
1 POSITION SW When setting selector lever to “1” position. ON
When setting selector lever to other positions. OFF

TROUBLE DIAGNOSIS FOR SYMPTOMS
AT-201
< SERVICE INFORMATION >
D
E
F
G H
I
J
K L
M A
B AT
N
O P
OK >> GO TO 3
NG >> Check PNP switch. Refer to AT-176, " Component Inspection " .
2.
CHECK PNP SWITCH CIRCUIT
Without CONSULT-III
1. Turn ignition switch ON. (Do not start engine.)
2. Check voltage between TCM connector terminals and ground
while moving selector lever through each position. Refer to AT-92, " Wiring Diagram - AT - PNP/SW " .
B: Battery voltage
0: 0V
OK or NG OK >> GO TO 3
NG >> Check PNP switch. Refer to AT-176, " Component Inspection " .
3.
CHECK A/T POSITION
Check A/T position. Refer to AT-216, " Checking of A/T Position " .
OK or NG OK >> GO TO 4.
NG >> Adjust A/T position. Refer to AT-216, " Adjustment of A/T Position " .
4.
CHECK VEHICLE SPEED SENS OR·A/T AND VEHICLE SPEED SENSOR·MTR CIRCUIT
Check vehicle speed sensor·A/T (re volution sensor) and vehicle speed sensor·MTR circuit. Refer to AT-101and/or
AT-154 .
OK or NG OK >> GO TO 5.
NG >> Repair or replace vehicle speed sensor·A/T (revolution sensor) and/or vehicle speed sensor·MTR
circuits. 5.
CHECK A/T FLUID CONDITION
1. Remove oil pan. Refer to AT-236, " Component " .
2. Check A/T fluid condition. Refer to AT-51, " Inspections Before Trouble Diagnosis " .
OK or NG OK >> GO TO 7.
NG >> GO TO 6. 6.
DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer to AT-221, " Control Valve Assembly and Accumulators " .
2. Check the following items: Selector lever position
Terminal
36 35 34 27 26
“P”, “N” B 0 0 0 0 “R” 0 B 0 0 0
“D” 0 0 B 0 0 “2” 0 0 0 B 0
“1” 0 0 0 0 B SCIA7162E

AT-202< SERVICE INFORMATION >
TROUBLE DIAGNOSIS FOR SYMPTOMS
- Shift valve A
- Shift solenoid valve A
- Overrun clutch control valve
- Overrun clutch solenoid valve
3. Disassemble A/T. Refer to AT-256, " Disassembly " .
4. Check the following items:
- Servo piston assembly
- Brake band
OK or NG OK >> GO TO 7.
NG >> Repair or replace damaged parts. 7.
CHECK SYMPTOM
Check again. Refer to AT-62, " Cruise Test - Part 3 " .
OK or NG OK >>
INSPECTION END
NG >> GO TO 8. 8.
CHECK TCM
1. Check TCM input/output signals. Refer to AT-77, " TCM Terminal and Reference Value " .
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG OK >>
INSPECTION END
NG >> Repair or replace damaged parts.
Vehicle Does Not Decele rate by Engine Brake INFOID:0000000004305490
SYMPTOM:
• Vehicle does not decelerate by engi ne brake when shifting from 22 (1 2 ) to 1 1“Cruise Test — Part 3”.
• Vehicle does not decelerate by engine brake when OD OFF (OD OFF indicator lamp is on) on “Cruise
Test — Part 3”.
• Vehicle does not decelerate by engi ne brake when shifting A/T from “D” to “2” position on “Cruise
Test — Part 3”.
DIAGNOSTIC PROCEDURE 1.
CHECK CAN COMMUNICATION LINE
Perform self-diagnosis. Refer to AT-79, " CONSULT-III Functi
on (TRANSMISSION) " or
AT-83, " Diagnosis Pro-
cedure without CONSULT-III " .
Is a malfunction in CAN communication indicated in the results? YES >> Check CAN communication line. Refer to
AT-88 .
NO >> GO TO 2. 2.
CHECK OVERDRIVE CONTROL SWITCH CIRCUIT
With CONSULT-III
1. Turn ignition switch ON. (Do not start engine)
2. Select “TCM INPUT SIGNALS” in “DATA MONITO R” mode for “TRANSMISSION” with CONSULT-III.
3. Read out “OVERDRIVE SW”. Check the signal of the overdrive c ontrol switch is indicated properly. SAT778B

TROUBLE DIAGNOSIS FOR SYMPTOMS
AT-203
< SERVICE INFORMATION >
D
E
F
G H
I
J
K L
M A
B AT
N
O P
Without CONSULT-III
1. Turn ignition switch ON. (Do not start engine)
2. Check voltage between A/T device harness connector terminal and ground. Refer to AT-178, " Wiring Diagram - AT - NONDTC " .
OK or NG OK (With CONSULT-III)>>GO TO 3.
OK (Without CONSULT-III)>>GO TO 4.
NG >> Check overdrive control switch. Refer to AT-176, " Component Inspection " .
3.
CHECK PNP SWITCH CIRCUIT
With CONSULT-III
1. Turn ignition switch ON. (Do not start engine.)
2. Select “TCM INPUT SIGNALS” in “DATA MONI TOR” mode for “TRANSMISSION” with CONSULT-III.
3. Read out “P·N”, “R”, “D”, “2” and “1” position switches moving selector lever to each position.
OK or NG OK >> GO TO 5
NG >> Check PNP switch. Refer to AT-176, " Component Inspection " .
4.
CHECK PNP SWITCH CIRCUIT
Without CONSULT-III
1. Turn ignition switch ON. (Do not start engine.) Item name
Overdrive control switch
Condition Display value
OVERDRIVE SW Depressed ON
Released OFF Item Connector Terminal
Overdrive
control switch Condition Judge-
ment
standard
(Approx.)
A/T device harness
connector (Overdrive
control switch) M38 1 - Ground
Released
Battery
voltage
Depressed 0V SCIA5336E
Monitor item Condition Display value
PN POSI SW When setting selector le
ver to “N” or “P” posi-
tion. ON
When setting selector lever to other positions. OFF
R POSITION SW When setting selector lever to “R” position. ON
When setting selector lever to other positions. OFF
D POSITION SW When setting selector lever to “D” positions. ON
When setting selector lever to other positions. OFF
2 POSITION SW When setting selector lever to “2” position. ON
When setting selector lever to other positions. OFF
1 POSITION SW When setting selector lever to “1” position. ON
When setting selector lever to other positions. OFF

.
2. Remove the control cable nut (A) and control cable (1) and place the manual lever (2) in the "P'"position.
3. Place selector lever in “P” position.
4. Hold control cable (1) at the end and pull it with a force of 9.8 N (approximately 1 kg, 2.2 lb). Release the control cable and tem-
porarily tighten control cable nut (A).
5. Tighten control cable nut (A) to the specified torque.
CAUTION:
Secure manual lever when tightening nut.
6. Move selector lever from “P” to "1" position again. Make sure that selector lever moves smoothly.
7. Check A/T position. Refer to AT-216, " Checking of A/T Position " .
8. Install air duct assembly. Refer to EM-139 .
Checking of A/T Position INFOID:0000000004305497
1. Place selector lever in “P” position, and tu rn ignition switch ON (Do not start engine).
2. Make sure selector lever can be shifted to other than “P” position when brake pedal is depressed. Also
make sure 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. Confirm 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 sele ctor lever is in matches the position shown by the
shift position indicator and the transaxle. SCIA6972E
Control De-
vice Removal and Installation " .

AT
N
O P
ON-VEHICLE SERVICE
Control Valve Assembly and Accumulators INFOID:0000000004305503
COMPONENTS
REMOVAL AND INSTALLATION
Removal 1. Disconnect the battery negative terminal.
2. Remove engine under cover and fender protector (LH). Refer to EI-24, " Removal and Installation " .
3. Drain the A/T fluid. Refer to AT-17 .
4. Remove oil pan and oil pan gasket.
5. Check for foreign materials in oil pan to help determine cause of malfunction. If the ATF is very dark, smell burned or contains for-
eign particles, friction material (clutches, band) may need
replacement. A tacky film that will not wipe clean indicates var-
nish build up. Varnish can cause valves, servo, and clutches to
stick and can inhibit pump pressure.
• If ATF contains frictional material (clutch, bands, etc.),
replace radiator and flush cooler line using cleaning sol-
vent and compressed air after repair of A/T. Refer to CO-38 .
6. Remove magnets from oil pan. 1. A/T 2. O-ring 3. Return spring
4. Control valve assembly 5. Oil pan gasket 6. Oil pan
7. Drain plug gasket 8. Drain plug 9. Magnet
10. Oil pan fitting bolt 11. Snap ring 12. O-ring
13. Servo release accumulator piston 14. N-D accumulator piston 15. O-ring
16. Return spring 17. Lip seal SCIA8025E

.
• After converter is installed to drive plate, ro tate crankshaft several turns to check that transaxle
rotates freely without binding.
• When installing the torque converter to the transaxle measure dis- tance A.
• Check the fitting of the dowel pins when installing the transaxle
assembly and the engine assembly.
: Dowel pin
• When installing the transaxle to the engine, align t he matching mark on the drive plate with the matching
mark on the torque converter.
• When securing the transaxle to the engine, attach the bolts in accordance with the following standard.
HR16DE engine models
(A): A/T to engine
(B): Engine to A/T
• When installing the transaxle to the engine, align t he matching mark on the drive plate with the matching
mark on the torque converter.
• When securing the transaxle to the engine, attach the bolts in accordance with the following standard.
Dimension A: 14.4 mm (0.567 in) or more
SCIA7698E

AT
N
O P
MR18DE engine models
(A): A/T to engine
(B): Engine to A/T
• Align the positions for the bolts on drive plate with those of the torque converter, and temporarily tighten bolts. Then, tighten bolts
to the specified torque.
• After completing installation, chec k for A/T fluid leakage, A/T fluid
level and A/T positions. Refer to AT-17, " Checking A/T Fluid " and
AT-216, " Checking of A/T Position " .
Bolt No. 1 2
Number of bolts 2 7
Bolt length “L”
[mm (in)] 55 (2.17) 50 (1.97)
Tightening torque
[N·m (kg-m, ft-lb)] 62 (6.3, 46)

AT
N
O P
• HR16DE engine models
(1): Snap ring
(2): Retaining plate
(3): Drive plate
(4): Driven plate
Drive plate/Driven plate: 3/5
CAUTION:
Be careful with the orde r and direction of plates.
• MR18DE engine models
(1): Snap ring
(2): Retaining plate
(3): Drive plate
(4): Driven plate
(5): Driven plate
Drive plate/Driven plate: 4/7 (1+6)
CAUTION:
Be careful with the orde r and direction of plates.
5. Install snap ring using a flat-bladed screwdriver.
6. Set dial indicator (A) on retaining plate (1), and measure clear- ance between retaining plate (1) and snap ring (2). If not within
allowable limit, select proper retaining plate (1). Refer to “Parts
Information” for retaining plate selection.
7. Check operation of high clutch.
8. Install seal rings to input shaft assembly (high clutch drum). SCIA7703E
Clutches and Brakes " .
SCIA4890E

AT
N
O P
• MR18DE engine models
(1): Snap ring
(2): Retaining plate
(3): Drive plate
(4): Driven plate
(5): Retaining plate
(6): Dish plate
Drive plate/Driven plate: 5/5
CAUTION:
Be careful with the order of plates
NOTE:
Install two dish plates fitting each installation direction with
groove displaced slightly.
6. Install snap ring (1) using a suitable tool (A).
7. Measure clearance between retaining plate and snap ring. If not within allowable limit, select proper retaining plate (front side).
Refer to “Parts Information” for retaining plate selection.
8. Check operation of low & reverse brake. Refer to "DISASSEM- BLY".
Rear Internal Gear and Forward Clutch Hub INFOID:0000000004305524
COMPONENTS Clutches and Brakes " .