ground NISSAN LATIO 2009 Service Service Manual

AT-170< SERVICE INFORMATION >
MAIN POWER SUPPLY AND GROUND CIRCUIT
Diagnosis Procedure INFOID:00000000043054631.
CHECK TCM POWER SOURCE
1. Turn ignition switch ON. (Do not start engine.)
2. Check voltage between TCM connector terminals and ground.
3. Turn ignition switch OFF.
4. Check voltage between TCM connector terminals and ground.
OK or NG OK >> GO TO 3.
NG >> GO TO 2. 2.
DETECT MALFUNCTIONING ITEM
Check the following items:
• Harness for short or open between ignition switch and TCM terminals 10, 19
• Harness for short or open between battery and TCM terminal 28
• 10A fuse (No.13, located in the fuse block) and 10A fuse (No.49, located in the IPDM E/R)
• Ignition switch. Refer to PG-3 .
OK or NG OK >> GO TO 3.
NG >> Repair or replace damaged parts. 3.
CHECK TCM GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between TCM connector terminals and ground.
OK or NG OK >> GO TO 4.
NG >> Repair open circuit or short to ground or short to power in harness or connectors. 4.
CHECK SYMPTOM
Drive for a while to check that there is no malfunction.
OK or NG Item
Connec-
tor Terminal Judgement standard (Approx.)
Power supply E31 10 Battery voltage
19 Battery voltage
Power supply
(memory back-up) E32 28 Battery voltage SCIA2656E
Item
Connec-
tor Terminal Judgement standard (Approx.)
Power supply E31 10 0 V
19 0 V
Power supply
(memory back-up) E32 28 Battery voltage SCIA2657E
Item Connector Terminal Continuity
Ground E32 25, 48 - Ground Yes SCIA2671E

PNP, OD SWITCH AND CLOSED THRO
TTLE, WIDE OPEN THROTTLE POSI-
TION SIGNAL CIRCUIT
AT-173
< SERVICE INFORMATION >
D
E
F
G H
I
J
K L
M A
B AT
N
O P 2.
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 4.
NG >> Check PNP switch circuit. Refer to AT-91 .
3.
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 4.
NG >> Check PNP switch circuit. Refer to AT-91 .
Item name 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 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
N
O P
2. Check voltage between A/T device harness connector terminal
and ground. Refer to AT-178, " Wiring Diagram - AT - NONDTC " .
OK or NG OK >> GO TO 10.
NG >> GO TO 8. Wiring Diagram - AT - NONDTC " .
OK or NG OK >> GO TO 9.
NG >> Repair or replace damaged parts. .
OK or NG OK >> GO TO 10.
NG >> Repair or replace damaged parts. OK >> GO TO 11.
NG >> Check the following. If any items are damaged, repair or replace damaged parts. • Accelerator pedal position sensor. Refer to EC-412, " Description " (HR16DE),
EC-959, " Compo-
nent Description " (MR Type 1) or
EC-1481, " Component Description " (MR Type 2).
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 0 V

AT-182< SERVICE INFORMATION >
TROUBLE DIAGNOSIS FOR SYMPTOMS
OD OFF 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-79, " CONSULT-III Function (TRANSMISSION) " .
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 TCM POWER SOURCE
1. Turn ignition switch ON. (Do not start engine.)
2. Check voltage between TCM connector terminals and ground.
Refer to AT-169, " Wiring Diagram - AT - MAIN " .
3. Turn ignition switch OFF.
4. Check voltage between TCM connector terminals and ground.
OK or NG OK >> GO TO 4.
NG >> GO TO 3. 3.
DETECT MALFUNCTIONING ITEM
Check the following.
• Harness for short or open between ignition switch and TCM connector terminals 10, 19. Refer to AT-169," Wiring Diagram - AT - MAIN " .
• Harness for short or open between battery and TCM connector terminal 28. Refer to AT-169, " Wiring Dia-
gram - AT - MAIN " .
• 10A fuse (No.13, located in the fuse block) and 10A fuse (No.49, located in the IPDM E/R). Refer to AT-169," Wiring Diagram - AT - MAIN " .
• Ignition switch. Refer to PG-3 .
OK or NG OK >> GO TO 4.
NG >> Repair or replace damaged parts. 4.
CHECK TCM GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect TCM connector. Item Connector Terminal Judgement standard (Approx.)
TCM connector E3110 -
Ground
Battery voltage
19 -
Ground
E32 28 -
Ground SCIA2656E
Item Connector Terminal Judgement standard (Approx.)
TCM connector E3110 -
Ground 0V
19 -
Ground 0V
E32 28 -
Ground Battery voltage SCIA2657E

AT
N
O P
3. Check continuity between TCM connector terminals and ground.
Refer to AT-169, " Wiring Diagram - AT - MAIN " .
OK or NG OK >> GO TO 5.
NG >> Repair open circuit or short to ground or short to power
in harness or connectors. .
OK or NG OK >> GO TO 6.
NG >> Repair or replace damaged parts. Check Before Engine Is Started " .
OK or NG OK >>
INSPECTION END
NG >> GO TO 7. TCM Terminal and Reference Value " .
2. If NG, recheck TCM pin terminals for dam age or loose connection with harness connector.
OK or NG OK >>
INSPECTION END
NG >> Repair or replace damaged parts.
Engine Cannot Be Starte d in "P" and "N" Position INFOID:0000000004305473
SYMPTOM: • Engine cannot be started with select or lever in “P” or “N” position.
• Engine can be started with selector l ever in “D”, “2”, “1” or “R” position.
DIAGNOSTIC PROCEDURE Wiring Diagram - AT - PNP/SW " .
OK or NG OK >> GO TO 3.
NG >> GO TO 2. OK >> Adjust A/T position. Refer to
AT-216, " Adjustment of A/T Position " .
Item Connector Terminal Continuity
TCM connector E32 25, 48 - Ground Yes

TROUBLE DIAGNOSIS FOR SYMPTOMS
AT-199
< SERVICE INFORMATION >
D
E
F
G H
I
J
K L
M A
B AT
N
O P
2. Check voltage between A/T device harness connector terminal
and ground. Refer to AT-178, " Wiring Diagram - AT - NONDTC " .
OK or NG OK >> Go to
AT-192, " A/T Does Not Shift: D 2 → D 3 " .
NG >> Check overdrive control switch. Refer to AT-176, " Component Inspection " .
A/T Does Not Shift: D 3→ 22, When Selector Lever "D" → "2" Position INFOID:0000000004305488
SYMPTOM: A/T does not shift from D 3 to 2 2 when changing selector lever from “D” to “2” position on “Cruise
Test — Part 3”.
DIAGNOSTIC PROCEDURE 1.
CHECK SYMPTOM
Check symptom. Refer to AT-58, " Cruise Test - Part 1 " or
AT-61, " Cruise Test - Part 2 " .
Is “ A/T Does Not Shift: D 1 → D 2 or Does Not Kickdown: D 4 → D 2 ” OK?
YES (With CONSULT-III) >>GO TO 2.
YES (Without CONSULT-III) >>GO TO 3.
NO >> Go to AT-190, " A/T Does Not Shift: D 1 → D 2 or Does Not Kickdown: D 4 → D 2 " .
2.
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 >>
INSPECTION END
NG >> Check PNP switch. Refer to AT-176, " Component Inspection " .
3.
CHECK PNP SWITCH CIRCUIT
Without CONSULT-III 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

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

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

AT-204< SERVICE INFORMATION >
TROUBLE DIAGNOSIS FOR SYMPTOMS
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 5
NG >> Check PNP switch. Refer to AT-176, " Component Inspection " .
5.
CHECK A/T POSITION
Check A/T position. Refer to AT-216, " Checking of A/T Position " .
OK or NG OK >> GO TO 6.
NG >> Adjust A/T position. Refer to AT-216, " Adjustment of A/T Position " .
6.
CHECK VEHICLE SPEED SENSOR·A/T A ND VEHICLE SPEED SENSOR·MTR CIRCUIT
Check vehicle speed sensor·A/T (revolution senso r) and vehicle speed sensor·MTR circuit. Refer to AT-101and/or
AT-154 .
OK or NG OK >> GO TO 7.
NG >> Repair or replace vehicle speed sensor·A/T (revolution sensor) and/or vehicle speed sensor·MTR
circuits. 7.
CHECK ACCELERATOR PEDAL POSITION SENSOR
Check accelerator pedal position sensor. Refer to EC-412, " Description " (HR16DE),
EC-959, " Component
Description " (MR Type 1) or
EC-1481, " Component Description " (MR Type 2).
OK or NG OK >> GO TO 8.
NG >> Repair or replace accelerator pedal position sensor. 8.
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 10.
NG >> GO TO 9. 9.
DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer to AT-221, " Control Valve Assembly and Accumulators " .
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