NISSAN LATIO 2009 Service Repair Manual

OK >> GO TO 4.
NG - 1 >> Battery voltage is not supplied betw een terminals 1 and 3, terminals 1 and ground: GO TO 6.
NG - 2 >> Battery voltage is not supp lied between terminals 1 and 3 only: GO TO 7.
4. CHECK HARNESS BETWEEN TCM AND TURBINE RE VOLUTION SENSOR (POWER TRAIN REVOLU- OK >> GO TO 5.
NG >> Repair open circuit or short to ground or short to power in harness or connectors. TCM Terminal and Reference Value " .
2. If NG, re-check TCM pin terminals for damage or loose connection with harness connector.
OK or NG OK >> GO TO 8.
NG >> Repair or replace damaged parts.
6. CHECK HARNESS BETWEEN TCM AND TURBINE REVOLUTION SENSOR [(POWER TRAIN REVOLU-

AT
N
O P
3. Check continuity between TCM connector terminals and turbine
revolution sensor (power train revolution sensor) harness con-
nector terminal. Refer to AT-50, " Circuit Diagram " and
AT-169, " Wiring Diagram - AT - MAIN " .
4. If OK, check harness for short to ground and short to power.
5. Reinstall any part removed.
OK or NG OK >> 10A fuse (No.49, located in the IPDM
E/R) or ignition switch are malfunctioning.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
7. CHECK HARNESS BETWEEN TCM AND TURBINE R EVOLUTION [(POWER TRAIN REVOLUTION SEN- OK >> GO TO 5.
NG >> Repair open circuit or short to ground or short to power in harness or connectors. DTC Confirmation Procedure " .
OK or NG OK >>
INSPECTION END
NG >> GO TO 5. Item Connector Terminal Continuity
TCM E31 10 Yes
Turbine revolu tion sensor
(power train revolution sensor) F47 1
TCM E31 19 Yes
Turbine revolu tion sensor
(power train revolution sensor) F47 1

Diagnosis Procedure " .
Diagnosis Procedure INFOID:0000000004305461DTC Confirmation Procedure " .
Is the “ CONTROL UNIT (RAM) ” or “ CONTROL UNIT (ROM) ” displayed again?
YES >> Replace TCM. Refer to
AT-211, " Removal and Installation " .
NO >> INSPECTION END

AT
N
O P
MAIN POWER SUPPLY AND GROUND CIRCUIT
Wiring Diagram - AT - MAIN INFOID:0000000004305462
TCM TERMINALS AND REFERENCE VALUES Refer to AT-77, " TCM Terminal and Reference Value " . B

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

AT
N
O P
OK >>
INSPECTION END
NG >> GO TO 5. 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.

CONSULT-III Function (TRANSMISSION) " .
Is a malfunction in the CAN communication indicated in the results? YES >> Check CAN communication line. Refer to
AT-88 .
NO (With CONSULT-III) >>GO TO 2.
NO (Without CONSULT-III) >>GO TO 3. Item name Condition Display value
PN POSI SW When setting selector lever
to “N” or “P” position. 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” position. 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
OVERDRIVE SW When overdrive control switch is depressed. ON
When overdrive control switch is released. OFF
CLOSED THL/SW Released accelerator pedal. ON
Depressed accelerator pedal. OFF
W/O THRL/P-SW Fully depressed accelerator pedal. ON
Released accelerator pedal. OFF Terminal Wire color Item Condition
Judgement standard
(Approx.)
26 Y PNP switch “1” posi-
tion
andWhen setting selector lever to “1” position. Battery voltage
When setting selector lever to other positions. 0 V
27 G PNP switch “2” posi-
tion When setting selector lever to “2” position. Battery voltage
When setting selector lever to other positions. 0 V
34 LG PNP switch “D” posi-
tion When setting selector lever to “D” position. Battery voltage
When setting selector lever to other positions. 0 V
35 SB PNP switch “R” posi-
tion When setting selector lever to “R” position. Battery voltage
When setting selector lever to other positions. 0 V
36 R PNP switch “N” or “P”
position When setting selector le
ver to “N” or “P” posi-
tions. Battery voltage
When setting selector lever to other positions. 0 V

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-174< SERVICE INFORMATION >
PNP, OD SWITCH AND CLOSED THRO
TTLE, WIDE OPEN THROTTLE POSI-
TION SIGNAL CIRCUIT 4.
CHECK PNP SWITCH
1. Turn ignition switch OFF.
2. Disconnect PNP switch harness connector.
3. Check continuity between PNP switch harness connector termi- nals.
OK or NG OK >> GO TO 6.
NG >> GO TO 5. 5.
CHECK CONTROL CABLE ADJUSTMENT
Check PNP switch again with control cable disconnected from manual shaft of A/T assembly. Refer to test
group 4.
OK or NG OK >> Adjust control cable. Refer to
AT-216, " Adjustment of A/T Position " .
NG >> Check PNP switch (Refer to test group 1) again after adjusting PNP switch (Refer to AT-224 ).
• If OK, INSPECTION END
• If NG, repair or replace PNP switch. Refer to AT-224, " Park/Neutral Position (PNP) Switch " .
6.
DETECT MALFUNCTIONING ITEM
Check the following.
• Harness for short or open between ignition switch and PNP switch
• Harness for short or open between PNP switch and TCM
• Harness for short or open between PNP switch and combination meter
• Harness for short or open between combination meter and TCM
• 10A fuse (No.51, located in the IPDM E/R)
• Combination meter. Refer to DI-3 .
• Ignition switch. Refer to PG-3 .
OK or NG OK >> GO TO 7.
NG >> Repair or replace damaged parts. 7.
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 ov erdrive control switch is indicated properly.
Without CONSULT-III
1. Turn ignition switch ON. (Do not start engine.) Selector lever position Connector Terminal Continuity
“P”
F251 - 2, 3 - 7
Yes
*Continuity
should not
exist in posi-
tions other than the
specified
positions.
“R” 3 - 8
“N” 1 - 2, 3 - 9
“D” 3 - 6 “2” 3 - 5
“1” 3 - 4 SCIA5588E
Item name
Overdrive control switch
Condition Display value
OVERDRIVE SW Depressed ON
Released OFF

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