Infiniti M35/M45 Y50. Manual — part 53
DTC P1710 A/T FLUID TEMPERATURE SENSOR CIRCUIT
AT-135
D
E
F
G
H
I
J
K
L
M
A
B
AT
DTC P1710 A/T FLUID TEMPERATURE SENSOR CIRCUIT
PFP:31940
Description
NCS001MF
The A/T fluid temperature sensor detects the A/T fluid temperature and sends a signal to the TCM.
CONSULT-II Reference Value
NCS001MG
On Board Diagnosis Logic
NCS001MH
●
This is an OBD-II self-diagnostic item.
●
Diagnostic trouble code “P1710 (A/T), P0710 (ENGINE) ATF TEMP SEN/CIRC” with CONSULT-II or 10th
judgement flicker without CONSULT-II is detected when TCM receives an excessively low or high voltage
from the sensor.
Possible Cause
NCS001MI
●
Harness or connectors
(Sensor circuit is open or shorted.)
●
A/T fluid temperature sensors 1 and/or 2
DTC Confirmation Procedure
NCS001MJ
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1.
Turn ignition switch ON.
2.
Select “SELECTION FROM MENU” in “DATA MONITOR” mode
for “A/T” with CONSULT-II and check monitor “VHCL/S SE-A/T”,
“ACCELE POSI” and “SLCT LVR POSI ”.
3.
Touch “START”.
4.
Start engine and maintain the following conditions for at least 10
minutes (Total). (It is not necessary to maintain continuously.)
VHCL/S SE-A/T: 10 km/h (6 MPH) or more
ACCELE POSI: More than 1.0/8
SLCT LVR POSI: “D” position
5.
AT-137, "Diagnostic Procedure"
WITH GST
Follow the procedure “WITH CONSULT-II”.
Item name
Condition
°
C (
°
F)
Display value (Approx.)
ATF TEMP SE 1
0 (32) - 20 (68) - 80 (176)
3.3 - 2.7 - 0.9 V
ATF TEMP SE 2
3.3 - 2.5 - 0.7 V
BCIA0030E
AT-136
DTC P1710 A/T FLUID TEMPERATURE SENSOR CIRCUIT
Wiring Diagram — AT — FTS
NCS001MK
TCWT0346E
DTC P1710 A/T FLUID TEMPERATURE SENSOR CIRCUIT
AT-137
D
E
F
G
H
I
J
K
L
M
A
B
AT
Diagnostic Procedure
NCS001ML
1.
CHECK A/T FLUID TEMPERATURE SENSOR 1 SIGNAL
With CONSULT-II
1.
Start engine.
2.
Select “ECU INPUT SIGNALS” in “DATA MONITOR” mode for
“A/T” with CONSULT-II.
3.
Read out the value of “ATF TEMP SE 1”.
OK or NG
OK >> GO
TO
2.
NG
>> GO TO 3.
2.
CHECK A/T FLUID TEMPERATURE SENSOR 2 SIGNAL
With CONSULT-II
1.
Start engine.
2.
Select “ECU INPUT SIGNALS” in “DATA MONITOR” mode for
“A/T” with CONSULT-II.
3.
Read out the value of “ATF TEMP SE 2”.
OK or NG
OK >> GO
TO
8.
NG
>> GO TO 5.
3.
CHECK A/T FLUID TEMPERATURE SENSOR 1
Check A/T fluid temperature sensor 1. Refer to
AT-139, "A/T FLUID TEMPERATURE SENSOR 1"
OK or NG
OK
>> GO TO 4.
NG
>> Replace the control valve with TCM. Refer to
AT-236, "Control Valve With TCM and A/T Fluid
4.
CHECK SUB-HARNESS
1.
Disconnect park/neutral position switch connector and TCM connector.
2.
Check continuity between park/neutral position switch connector
terminals and TCM connector terminals.
3.
If OK, check harness for short to ground and short to power.
OK or NG
OK
>> GO TO 7.
NG
>> Replace open circuit or short to ground and short to power in harness or connectors.
Item name
Condition
°
C (
°
F)
Display value (Approx.)
ATF TEMP SE 1
0 (32) - 20 (68) - 80 (176)
3.3 - 2.7 - 0.9 V
PCIA0039E
Item name
Condition
°
C (
°
F)
Display value (Approx.)
ATF TEMP SE 2
0 (32) - 20 (68) - 80 (176)
3.3 - 2.5 - 0.7 V
PCIA0039E
Item
Connector
Terminal
Continuity
Park/neutral position switch
connector
F505
6
Yes
TCM connector
F503
19
Park/neutral position switch
connector
F505
7
Yes
TCM connector
F503
18
SCIA5461E
AT-138
DTC P1710 A/T FLUID TEMPERATURE SENSOR CIRCUIT
5.
CHECK A/T FLUID TEMPERATURE SENSOR 2
Check A/T fluid temperature sensor 2. Refer to
AT-139, "A/T FLUID TEMPERATURE SENSOR 2"
OK or NG
OK
>> GO TO 6.
NG
>> Replace the A/T fluid temperature sensor 2. Refer to
AT-246, "A/T FLUID TEMPERATURE SEN-
SOR 2 REMOVAL AND INSTALLATION"
6.
CHECK TERMINAL CORD ASSEMBLY
1.
Disconnect A/T fluid temperature sensor 2 connector and TCM connector.
2.
Check continuity between A/T fluid temperature sensor 2 con-
nector terminals and TCM connector terminals.
3.
If OK, check harness for short to ground and short to power.
OK or NG
OK
>> GO TO 7.
NG
>> Replace open circuit or short to ground and short to power in harness or connectors.
7.
CHECK TCM POWER SUPPLY AND GROUND CIRCUIT
1.
Check TCM power supply and ground circuit. Refer to
AT-180, "MAIN POWER SUPPLY AND GROUND
2.
Reinstall any part removed.
OK or NG
OK
>> Replace the control valve with TCM. Refer to
AT-236, "Control Valve With TCM and A/T Fluid
NG
>> Repair or replace damaged parts.
8.
CHECK DTC
Perform “DTC Confirmation Procedure”. Refer to
AT-135, "DTC Confirmation Procedure"
OK or NG
OK
>> INSPECTION END
NG
>> GO TO 1.
Item
Connector
Terminal
Continuity
A/T fluid temperature sen-
sor 2 connector
F507
1
Yes
TCM connector
F502
3
A/T fluid temperature sen-
sor 2 connector
F507
2
Yes
TCM connector
F502
5
SCIA5462E
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