Infiniti G37 Coupe. Manual — part 1323
P1710 A/T FLUID TEMPERATURE SENSOR
TM-145
< COMPONENT DIAGNOSIS >
[5AT: RE5R05A]
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1.
Remove control valve with TCM. Refer to
2.
Disconnect park/neutral position switch connector.
3.
Check A/T fluid temperature sensor 1. Refer to
TM-146, "Component Inspection (A/T fluid temperature
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace damaged parts. Refer to
3.
CHECK SUB-HARNESS
1.
Disconnect TCM connector.
2.
Check continuity between park/neutral position switch connector terminals and TCM connector terminals.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair or replace damaged parts.
4.
DETECT MALFUNCTIONING ITEM
Check the following.
• Check terminals of park/neutral position switch connector and TCM connector, and harness cladding for
damage.
• Check connector for loose connection.
Is the inspection result normal?
YES
>> GO TO 8.
NO
>> Repair or replace damaged parts.
5.
CHECK A/T FLUID TEMPERATURE SENSOR 2
1.
Remove A/T fluid temperature sensor 2. Refer to
.
2.
Check A/T fluid temperature sensor 2. Refer to
TM-146, "Component Inspection (A/T fluid temperature
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Repair or replace damaged parts. Refer to
6.
CHECK TERMINAL CORD ASSEMBLY
1.
Remove control valve with TCM. Refer to
2.
Disconnect TCM connector.
3.
Check continuity between A/T fluid temperature sensor 2 connector terminals and TCM connector termi-
nals.
Is the inspection result normal?
YES
>> GO TO 7.
NO
>> Replace open circuit or short to ground and short to power in harness or connectors.
7.
DETECT MALFUNCTIONING ITEM
Check the following.
• Check terminals of A/T fluid temperature sensor 2 connector and TCM connector, and harness cladding for
damage.
• Check connector for loose connection.
Park/neutral position switch connector
TCM connector
Continuity
Connector
Terminal
Connector
Terminal
F154
6
F152
19
Existed
7
18
Existed
A/T fluid temperature sensor 2 connector
TCM connector
Continuity
Connector
Terminal
Connector
Terminal
F156
1
F151
3
Existed
2
5
Existed
TM-146
< COMPONENT DIAGNOSIS >
[5AT: RE5R05A]
P1710 A/T FLUID TEMPERATURE SENSOR
Is the inspection result normal?
YES
>> GO TO 8.
NO
>> Repair or replace damaged parts.
8.
CHECK TCM POWER SUPPLY AND GROUND CIRCUIT
Check TCM power supply and ground circuit. Refer to
Is the inspection result normal?
YES
>> Replace the control valve with TCM. Refer to
NO
>> Repair or replace damaged parts.
Component Inspection (A/T fluid temperature sensor 1)
INFOID:0000000001672171
1.
CHECK A/T FLUID TEMPERATURE SENSOR 1
Check resistance between park/neutral position switch connector terminals.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace control valve with TCM. Refer to
Component Inspection (A/T fluid temperature sensor 2)
INFOID:0000000001672172
1.
CHECK A/T FLUID TEMPERATURE SENSOR 2
Check resistance between A/T fluid temperature sensor 2 connector terminals.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace the A/T fluid temperature sensor 2. Refer to
.
Park/neutral position switch connector
Temperature
°
C (
°
F)
Resistance (Approx.)
Connector
Terminal
F154
6
7
0 (32)
15 k
Ω
20 (68)
6.5 k
Ω
80 (176)
0.9 k
Ω
A/T fluid temperature sensor 2 connector
Temperature
°
C (
°
F)
Resistance (Approx.)
Connector
Terminal
F156
1
2
0 (32)
10 k
Ω
20 (68)
4 k
Ω
80 (176)
0.5 k
Ω
P1721 VEHICLE SPEED SENSOR MTR
TM-147
< COMPONENT DIAGNOSIS >
[5AT: RE5R05A]
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P1721 VEHICLE SPEED SENSOR MTR
Description
INFOID:0000000001672173
The vehicle speed sensor·MTR signal is transmitted from unified meter and A/C amp. to TCM by CAN commu-
nication line. The signal functions as an auxiliary device to the revolution sensor when it is malfunctioning. The
TCM will then use the vehicle speed sensor·MTR signal.
DTC Logic
INFOID:0000000001672174
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC CONFIRMATION PROCEDURE” has been previously performed, always turn ignition switch
OFF. Then wait at least 10 seconds before performing the next test.
1.
CHECK DTC DETECTION
With CONSULT-III
1.
Start the engine.
2.
Select “DATA MONITOR”.
3.
Drive vehicle and maintain the following conditions for at least 5 consecutive seconds.
Is “P1721 VEH SPD SE/CIR-MTR” detected?
YES
>> Go to
NO
>> Check intermittent incident. Refer to
GI-38, "Intermittent Incident"
.
Diagnosis Procedure
INFOID:0000000001672175
1.
CHECK DTC OF UNIFIED METER AND A/C AMP.
Perform “SELF-DIAG RESULTS” mode for “METER/M&A”.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Check DTC detected item. Refer to
MWI-37, "CONSULT-III Function (METER/M&A)"
2.
CHECK TCM POWER SUPPLY AND GROUND CIRCUIT
Check TCM power supply and ground circuit. Refer to
Is the inspection result normal?
YES
>> Replace the control valve with TCM. Refer to
NO
>> Repair or replace damaged parts.
DTC
Item
(CONSULT-III screen
terms)
A/T CHECK indicator
lamp judgment flicker
Diagnostic item is detect-
ed when...
Possible cause
P1721
VEH SPD SE/CIR-MTR
—
• Signal (CAN commu-
nication) from vehicle
speed sensor MTR not
input due to cut line or
the like.
• Unexpected signal in-
put during running.
Harness or connectors
(Sensor circuit is open or
shorted.)
VHCL/S SE-MTR
: 30 km/h (19 MPH) or more
ACCELE POSI
: 1.0/8 or less
TM-148
< COMPONENT DIAGNOSIS >
[5AT: RE5R05A]
P1730 A/T INTERLOCK
P1730 A/T INTERLOCK
Description
INFOID:0000000001672176
Fail-safe function to detect interlock conditions.
DTC Logic
INFOID:0000000001672177
DTC DETECTION LOGIC
NOTE:
When the vehicle is driven fixed in 2nd gear, a turbine revolution sensor malfunction is displayed, but
this is not a turbine revolution sensor malfunction.
DTC CONFIRMATION PROCEDURE
NOTE:
If “DTC CONFIRMATION PROCEDURE” has been previously performed, always turn ignition switch
OFF. Then wait at least 10 seconds before performing the next test.
1.
CHECK DTC DETECTION
With CONSULT-III
1.
Start the engine.
2.
Select “DATA MONITOR”.
3.
Drive vehicle and maintain the following conditions for at least 2 consecutive seconds.
With GST
Follow the procedure “With CONSULT-III”.
Is “P1730 A/T INTERLOCK” detected?
YES
>> Go to
NO
>> Check intermittent incident. Refer to
GI-38, "Intermittent Incident"
.
Judgment of A/T Interlock
INFOID:0000000001672178
.
Diagnosis Procedure
INFOID:0000000001672179
1.
CHECK TCM POWER SUPPLY AND GROUND CIRCUIT
Check TCM power supply and ground circuit. Refer to
Is the inspection result normal?
YES
>> Replace the control valve with TCM. Refer to
NO
>> Repair or replace damaged parts.
DTC
Item
(CONSULT-III screen
terms)
A/T CHECK indicator
lamp judgment flicker
Diagnostic item is de-
tected when...
Possible cause
P1730
A/T INTERLOCK
12th
Except during shift
change, the gear posi-
tion and ATF pressure
switch states are moni-
tored and comparative
judgment made.
• Harness or connectors
(Solenoid and switch
circuit is open or short-
ed.)
• Low coast brake sole-
noid valve
• ATF pressure switch 2
SLCT LVR POSI
: “D” position
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