2008 NISSAN LATIO service

DTC U1000 CAN COMMUNICATION LINE
AT-83
< SERVICE INFORMATION >
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DTC U1000 CAN COMMUNICATION LINE
DescriptionINFOID:0000000001703195
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent malfunction detection ability.
Many electronic control units are equipped onto a vehicle, and each control unit shares information and links
with other control units during operation (not independent). In CAN communication, control units are con-
nected with 2 communication lines (CAN H line, CAN L line) allowing a high rate of information transmission
with less wiring. Each control unit transmits/receives data but selectively reads required data only.
On Board Diagnosis LogicINFOID:0000000001703196
• This is an OBD-II self-diagnostic item.
• Diagnostic trouble code “U1000 CAN COMM CIRCUIT” with CONSULT-III or 12th judgement flicker without
CONSULT-III is detected when TCM cannot communicate to other control units.
Possible CauseINFOID:0000000001703197
Harness or connector
(CAN communication line is open or shorted.)
DTC Confirmation ProcedureINFOID:0000000001703198
CAUTION:
If performing this “DTC Confirmation Procedure” again, always turn ignition switch OFF and wait at
least 10 seconds before continuing.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-III
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode for “A/T” with CONSULT-III.
3. Touch “START”.
4. Wait at least 6 seconds or start engine and wait for at least 6 seconds.
5. If DTC is detected, go to AT-85, "
Diagnosis Procedure".
WITH GST
Follow the procedure “WITH CONSULT-III”.
WITHOUT CONSULT-III
1. Turn ignition switch ON.
2. Wait at least 6 seconds or start engine and wait at least 6 seconds.
3. Perform self-diagnosis. Refer to AT-78, "
Diagnosis Procedure without CONSULT-III".
4. If DTC is detected, go to AT-85, "
Diagnosis Procedure".

AT-84
< SERVICE INFORMATION >
DTC U1000 CAN COMMUNICATION LINE
Wiring Diagram - AT - CAN
INFOID:0000000001703199
TCM TERMINALS AND REFERENCE VALUES
Refer to AT-71, "TCM Terminal and Reference Value".
BCWA0648E

DTC U1000 CAN COMMUNICATION LINE
AT-85
< SERVICE INFORMATION >
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Diagnosis ProcedureINFOID:0000000001703200
1.CHECK CAN COMMUNICATION CIRCUIT
With CONSULT-III1. Turn ignition switch ON and start engine.
2. Select “SELF-DIAG RESULTS” mode for “A/T” with CONSULT-III.
Is any malfunction of the
“U1000 CAN COMM CIRCUIT” indicated?
YES >> Print out CONSULT-III screen, Go to LAN section. Refer to LAN-23, "CAN System Specification
Chart".
NO >>INSPECTION END

AT-86
< SERVICE INFORMATION >
DTC P0705 PARK/NEUTRAL POSITION (PNP) SWITCH
DTC P0705 PARK/NEUTRAL POSITION (PNP) SWITCH
DescriptionINFOID:0000000001703201
• The PNP switch assembly includes a transaxle range switch.
• The transaxle range switch detects the selector lever position and sends a signal to the TCM.
CONSULT-III Reference Value in Data Monitor ModeINFOID:0000000001703202
On Board Diagnosis LogicINFOID:0000000001703203
• This is an OBD-II self-diagnostic item.
• Diagnostic trouble code “P0705 PNP SW/CIRC” with CONSULT-III is detected when TCM does not receive
the correct voltage signal from the switch based on the gear position.
Possible CauseINFOID:0000000001703204
• Harness or connectors
[The PNP switch circuit is open or shorted.]
• PNP switch
DTC Confirmation ProcedureINFOID:0000000001703205
CAUTION:
• Always drive vehicle at a safe speed.
• If performing this “DTC Confirmation Procedure” again, always turn ignition switch OFF and wait at
least 10 seconds before continuing.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-III
1. Turn ignition switch ON. (Do not start engine.)
2. Select “DATA MONITOR” mode for “A/T” with CONSULT-III.
3. Touch “START”.
4. Start engine and maintain the following conditions for at least 5 consecutive seconds.
VEHICLE SPEED: 10 km/h (6 MPH) or more
THROTTLE POSI: More than 1.0/8
SLCT LVR POSI: “D” position
5. If the check result is NG, go to AT-88, "
Diagnosis Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-III”.
Item name Condition Display value
PN POSI SWWhen setting selector lever to “N” or “P” position. ON
When setting selector lever to other positions. OFF
R POSITION SWWhen setting selector lever to “R” position. ON
When setting selector lever to other positions. OFF
D POSITION SWWhen setting selector lever to “D” position. ON
When setting selector lever to other positions. OFF
2 POSITION SWWhen setting selector lever to “2” position. ON
When setting selector lever to other positions. OFF
1 POSITION SWWhen setting selector lever to “1” position. ON
When setting selector lever to other positions. OFF

DTC P0705 PARK/NEUTRAL POSITION (PNP) SWITCH
AT-87
< SERVICE INFORMATION >
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Wiring Diagram - AT - PNP/SWINFOID:0000000001703206
TCM TERMINALS AND REFERENCE VALUES
Refer to AT-71, "TCM Terminal and Reference Value".
BCWA0771E

AT-88
< SERVICE INFORMATION >
DTC P0705 PARK/NEUTRAL POSITION (PNP) SWITCH
Diagnosis Procedure
INFOID:0000000001703207
1.CHECK INPUT SIGNAL
With CONSULT-III
1. Turn ignition switch ON. (Do not start engine.)
2. Select “TCM INPUT SIGNALS” in “DATA MONITOR” mode for “A/T” 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 6.
NG >> GO TO 3.
2.CHECK INPUT SIGNAL
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.
B: Battery voltage
0: 0V
OK or NG
OK >> GO TO 6.
Item name Condition Display value
PN POSI SWWhen setting selector lever to “N” or “P” posi-
tion.ON
When setting selector lever to other positions. OFF
R POSITION SWWhen setting selector lever to “R” position. ON
When setting selector lever to other positions. OFF
D POSITION SWWhen setting selector lever to “D” positions. ON
When setting selector lever to other positions. OFF
2 POSITION SWWhen setting selector lever to “2” position. ON
When setting selector lever to other positions. OFF
1 POSITION SWWhen setting selector lever to “1” position. ON
When setting selector lever to other positions. OFF
Selector lever positionTe r m i n a l
36 35 34 27 26
P, N B0000
R 0B000
D00B00
20 00B0
1 0000B
SCIA7162E

DTC P0705 PARK/NEUTRAL POSITION (PNP) SWITCH
AT-89
< SERVICE INFORMATION >
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NG >> GO TO 3.
3.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 5.
NG >> GO TO 4.
4.CHECK CONTROL CABLE ADJUSTMENT
Check PNP switch again with control cable disconnected from manual shaft of A/T assembly. Refer to test
group 3.
OK or NG
OK >> Adjust control cable. Refer to AT-207, "Adjustment of A/T Position" .
NG >> Check PNP switch (Refer to test group 1) again after adjusting PNP switch (Refer to AT-219
).
• If OK, INSPECTION END
• If NG, repair or replace PNP switch. Refer to AT-219, "
Park/Neutral Position (PNP) Switch" .
5.DETECT MALFUNCTIONING ITEM
Check the following items:
• 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 combination meter and PNP switch.
• 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-4
.
• Ignition switch. Refer to PG-3
.
OK or NG
OK >> GO TO 6.
NG >> Repair or replace damaged parts.
6.CHECK DTC
Perform AT-86, "
DTC Confirmation Procedure" .
OK or NG
OK >>INSPECTION END
NG >> GO TO 7.
7.CHECK TCM
1. Check TCM input/output signal. Refer to AT-71, "
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.
Selector lever position Connector Terminal Continuity
P
F251 - 2, 3 - 7
Ye s
*Continuity
should not
exist in posi-
tions other
than the
specified
positions. R3 - 8
N 1 - 2, 3 - 9
D3 - 6
23 - 5
13 - 4
SCIA3553E

AT-90
< SERVICE INFORMATION >
DTC P0705 PARK/NEUTRAL POSITION (PNP) SWITCH
Component Inspection
INFOID:0000000001703208
PNP SWITCH
1. Check continuity between PNP switch harness connector termi-
nals.
2. If NG, check again with control cable (2) disconnected from
manual shaft of A/T assembly. Refer to step 1.
(1): Lock nut
(3): Manual shaft
3. If OK on step 2, adjust control cable (2). Refer to AT-207,
"Adjustment of A/T Position" .
4. If NG on step 2, remove PNP switch from A/T and check conti-
nuity of PNP switch terminals. Refer to step 1.
5. If OK on step 4, adjust PNP switch. Refer to AT-219, "
Park/Neu-
tral Position (PNP) Switch" .
6. If NG on step 4, replace PNP switch. Refer to AT-219, "
Park/
Neutral Position (PNP) Switch" .
Selector lever position Connector Terminal Continuity
“P”
F251 - 2, 3 - 7
Ye s
*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
SCIA6370J