Infiniti M35/M45 Y50. Manual — part 52
DTC P0745 LINE PRESSURE SOLENOID VALVE
AT-131
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Diagnostic Procedure
NCS001M8
1.
CHECK INPUT SIGNAL
With CONSULT-II
1.
Turn ignition switch ON.
2.
Select “MAIN SIGNALS” in “DATA MONITOR” mode for “A/T”
with CONSULT-II.
3.
Start engine.
4.
Read out the value of “LINE PRES SOL” during driving.
OK or NG
OK
>> GO TO 4.
NG
>> GO TO 2.
2.
CHECK TCM POWER SUPPLY AND GROUND CIRCUIT
Check TCM power supply and ground circuit. Refer to
AT-180, "MAIN POWER SUPPLY AND GROUND CIR-
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace damaged parts.
3.
DETECT MALFUNCTIONING ITEM
Check the following.
●
The A/T assembly harness connector pin terminals for damage or loose connection with harness connec-
tor.
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.
4.
CHECK DTC
Perform “DTC Confirmation Procedure”. Refer to
AT-130, "DTC Confirmation Procedure"
.
OK or NG
OK
>> INSPECTION END
NG
>> GO TO 2.
Item name
Condition
Display value (Approx.)
LINE PRES SOL
During driving
0.2 - 0.6 A
SCIA4793E
AT-132
DTC P1705 THROTTLE POSITION SENSOR
DTC P1705 THROTTLE POSITION SENSOR
PFP:22620
Description
NCS001M9
Electric throttle control actuator consists of throttle control motor, accelerator pedal position sensor, throttle
position sensor, etc. The actuator sends a signal to the ECM, and ECM sends signals to TCM with CAN com-
munication.
CONSULT-II Reference Value
NCS001MA
On Board Diagnosis Logic
NCS001MB
●
This is an OBD-II self-diagnostic item. (For VQ35DE engine)
●
Diagnostic trouble code “P1705 TP SEN/CIRC A/T” with CONSULT-II or 15th judgement flicker without
CONSULT-II is detected when TCM does not receive the proper accelerator pedal position signals (input
by CAN communication) from ECM.
Possible Cause
NCS001MC
Harness or connectors
(Sensor circuit is open or shorted.)
DTC Confirmation Procedure
NCS001MD
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 “ECU INPUT SIGNALS” in “DATA MONITOR” mode for
“A/T” with CONSULT-II.
3.
Touch “START”.
4.
Start engine and let it idle for 1 second.
5.
If DTC is detected, go to
AT-133, "Diagnostic Procedure"
WITH GST
Follow the procedure “WITH CONSULT-II”.
Item name
Condition
Display value (Approx.)
ACCELE POSI
Released accelerator pedal.
0.0/8
Fully depressed accelerator pedal.
8.0/8
BCIA0030E
DTC P1705 THROTTLE POSITION SENSOR
AT-133
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Diagnostic Procedure
NCS001ME
1.
CHECK CAN COMMUNICATION LINE
Perform the self-diagnosis. Refer to
AT-92, "SELF-DIAGNOSTIC RESULT MODE"
Is a malfunction in the CAN communication indicated in the results?
YES
>> Check CAN communication line. Refer to
AT-105, "DTC U1000 CAN COMMUNICATION LINE"
.
NO
>> GO TO 2.
2.
CHECK DTC WITH TCM
With CONSULT-II
1.
Turn ignition switch ON.
2.
Select “ECU INPUT SIGNALS” in “DATA MONITOR” mode for
“A/T” with CONSULT-II.
3.
Depress accelerator pedal and read out the value of “ACCELE
POSI”.
4.
Select “SELF-DIAG RESULTS” mode for “A/T” with CONSULT-
II. Refer to
AT-92, "SELF-DIAGNOSTIC RESULT MODE"
OK or NG
OK
>> GO TO 4.
NG
>> GO TO 3.
3.
CHECK DTC WITH ECM
With CONSULT-II
1.
Turn ignition switch ON.
2.
Select “SELF-DIAG RESULTS” mode for “ENGINE” with CON-
SULT-II. Refer to
EC-123, "CONSULT-II Function (ENGINE)"
(for VQ35DE engine),
(for VK45DE engine).
OK or NG
OK
>> GO TO 4.
NG
>> Check the DTC detected item. Refer to
826, "CONSULT-II Function (ENGINE)"
engine).
●
If CAN communication line is detected, go to
AT-105, "DTC U1000 CAN COMMUNICATION
4.
CHECK DTC
Perform “DTC Confirmation Procedure”. Refer to
AT-132, "DTC Confirmation Procedure"
.
OK or NG
OK
>> INSPECTION END
NG
>> GO TO 5.
Item name
Condition
Display value
(Approx.)
ACCELE POSI
Released accelerator pedal.
0.0/8
Fully depressed accelerator pedal.
8.0/8
PCIA0070E
BCIA0030E
AT-134
DTC P1705 THROTTLE POSITION SENSOR
5.
CHECK TCM POWER SUPPLY AND GROUND CIRCUIT
Check TCM power supply and ground circuit. Refer to
AT-180, "MAIN POWER SUPPLY AND GROUND CIR-
OK or NG
OK
>> GO TO 6.
NG
>> Repair or replace damaged parts.
6.
DETECT MALFUNCTIONING ITEM
Check the following.
●
The A/T assembly harness connector pin terminals for damage or loose connection with harness connec-
tor.
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.
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