2008 NISSAN LATIO Service Repair Manual

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Page 177 of 2771

NISSAN LATIO 2008 Service Repair Manual MAIN POWER SUPPLY AND GROUND CIRCUIT
AT-165
< SERVICE INFORMATION >
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Diagnosis ProcedureINFOID:0000000001703326
1.CHECK TCM POWER SOURCE
1. Turn ignition switch ON. (Do

Page 178 of 2771

NISSAN LATIO 2008 Service Repair Manual AT-166
< SERVICE INFORMATION >
MAIN POWER SUPPLY AND GROUND CIRCUIT
OK >>INSPECTION END
NG >> GO TO 5.
5.CHECK TCM
1. Check TCM input/output signal. Refer to AT-71, "
TCM Terminal and Reference Va

Page 179 of 2771

NISSAN LATIO 2008 Service Repair Manual PNP, OD SWITCH AND CLOSED THROTTLE, WIDE OPEN THROTTLE POSI-
TION SIGNAL CIRCUIT
AT-167
< SERVICE INFORMATION >
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PNP, OD SWITCH AND CLOSED THROTTLE, WIDE OPEN THROTTLE P

PNP, OD SWITCH AND CLOSED THROTTLE, WIDE OPEN THROTTLE POSI-
TION SIGNAL CIRCUIT
AT-167
< SERVICE INFORMATION >
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PNP, OD SWITCH AND CLOSED THROTTLE, WIDE OPEN THROTTLE PO-
SITION SIGNAL CIRCUIT
CONSULT-III Reference Value in Data Monitor ModeINFOID:0000000001703327
TCM Terminal and Reference ValueINFOID:0000000001703328
TCM terminal data are reference values, measured between each terminal and ground.
Diagnosis ProcedureINFOID:0000000001703329
1.CHECK CAN COMMUNICATION LINE
Perform self-diagnosis. Refer to AT-73, "
CONSULT-III Function (A/T)".
Is a malfunction in the CAN communication indicated in the results?
YES >> Check CAN communication line. Refer to AT- 8 3.
NO (With CONSULT-III) >>GO TO 2.
NO (Without CONSULT-III) >>GO TO 3.
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
OVERDRIVE SWWhen overdrive control switch is depressed. ON
When overdrive control switch is released. OFF
CLOSED THL/SWReleased accelerator pedal. ON
Depressed accelerator pedal. OFF
W/O THRL/P-SWFully depressed accelerator pedal. ON
Released accelerator pedal. OFF
Terminal Wire color Item ConditionJudgement standard
(Approx.)
26 YPNP switch “1” posi-
tion
andWhen setting selector lever to “1” position. Battery voltage
When setting selector lever to other positions. 0 V
27 GPNP switch “2” posi-
tionWhen setting selector lever to “2” position. Battery voltage
When setting selector lever to other positions. 0 V
34 LGPNP switch “D” posi-
tionWhen setting selector lever to “D” position. Battery voltage
When setting selector lever to other positions. 0 V
35 SBPNP switch “R” posi-
tionWhen setting selector lever to “R” position. Battery voltage
When setting selector lever to other positions. 0 V
36 RPNP switch “N” or “P”
positionWhen setting selector lever to “N” or “P” posi-
tions.Battery voltage
When setting selector lever to other positions. 0 V

Page 180 of 2771

NISSAN LATIO 2008 Service Repair Manual AT-168
< SERVICE INFORMATION >
PNP, OD SWITCH AND CLOSED THROTTLE, WIDE OPEN THROTTLE POSI-
TION SIGNAL CIRCUIT
2.CHECK PNP SWITCH CIRCUIT
With CONSULT-III
1. Turn ignition switch ON. (Do not start en

Page 181 of 2771

NISSAN LATIO 2008 Service Repair Manual PNP, OD SWITCH AND CLOSED THROTTLE, WIDE OPEN THROTTLE POSI-
TION SIGNAL CIRCUIT
AT-169
< SERVICE INFORMATION >
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4.CHECK PNP SWITCH
1. Turn ignition switch OFF.
2. Disco

PNP, OD SWITCH AND CLOSED THROTTLE, WIDE OPEN THROTTLE POSI-
TION SIGNAL CIRCUIT
AT-169
< SERVICE INFORMATION >
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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-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".
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-4
.
• 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 MONITOR” mode for “A/T” with CONSULT-III.
3. Read out “OVERDRIVE SW”. Check the signal of overdrive 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
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
Item nameOverdrive control switch
ConditionDisplay value
OVERDRIVE SWDepressed ON
Released OFF

Page 182 of 2771

NISSAN LATIO 2008 Service Repair Manual AT-170
< SERVICE INFORMATION >
PNP, OD SWITCH AND CLOSED THROTTLE, WIDE OPEN THROTTLE POSI-
TION SIGNAL CIRCUIT
2. Check voltage between A/T device harness connector terminal
and ground. Refer to AT-1

Page 183 of 2771

NISSAN LATIO 2008 Service Repair Manual PNP, OD SWITCH AND CLOSED THROTTLE, WIDE OPEN THROTTLE POSI-
TION SIGNAL CIRCUIT
AT-171
< SERVICE INFORMATION >
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11 .PERFORM SELF-DIAGNOSIS
Without CONSULT-III
Perform s

Page 184 of 2771

NISSAN LATIO 2008 Service Repair Manual AT-172
< SERVICE INFORMATION >
SHIFT POSITION INDICATOR CIRCUIT
SHIFT POSITION INDICATOR CIRCUIT
DescriptionINFOID:0000000001703331
TCM sends the switch signals to combination meter via CAN communicat

AT-172
< SERVICE INFORMATION >
SHIFT POSITION INDICATOR CIRCUIT
SHIFT POSITION INDICATOR CIRCUIT
DescriptionINFOID:0000000001703331
TCM sends the switch signals to combination meter via CAN communication line. Then selector lever position
is indicated on the shift position indicator.
CONSULT-III Reference Value in Data Monitor ModeINFOID:0000000001703332
Diagnosis ProcedureINFOID:0000000001703333
1.CHECK INPUT SIGNALS
With CONSULT-III
1. Start engine.
2. Select “MAIN SIGNALS” in “DATA MONITOR” mode for “A/T” with CONSULT-III and read out the value of
“SLCT LVR POSI”.
3. Check that the following three positions or indicators are same.
- Actual position of the selector lever
- “SLCT LVR POSI” on CONSULT-III screen
- Shift position indicator in the combination meter
OK or NG
OK >>INSPECTION END
NG >> Check the following.
SHIFT POSITION INDICATOR SYMPTOM CHART
Item name Condition Display value
SLCT LVR POSIWhen setting selector lever to “N” or “P” positions. N · P
When setting selector lever to “R” position. R
When setting selector lever to “D” position. D
When setting selector lever to “2” position. 2
When setting selector lever to “1” position. 1
Items Presumed location of trouble
Actual position does not change.Park/neutral position (PNP) switch
• Refer to AT- 8 6
.
A/T main system (Fail-safe function actuated)
•Refer to AT- 7 3 , "
CONSULT-III Function (A/T)" and AT- 7 8 , "Diag-
nosis Procedure without CONSULT-III".
Shift position indicator in the combination meter does not indicate
any position.
Perform the self-diagnosis for A/T and the combination meter.
• Refer to AT- 7 3 , "
CONSULT-III Function (A/T)" and DI-4. Actual position changes, but the shift position indicator in the com-
bination meter does not change.
Actual position differs from the shift position indicator in the com-
bination meter.
Shift position indicator in the combination meter does not indicate
specific position only.Check the combination meter.
• Refer to DI-4
.

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