2001 INFINITI QX4 Factory Service Manual

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INFINITI QX4 2001  Factory Service Manual Wiring Diagram Ð AT Ð TCCSIGNBAT0195
MAT913A
DTC P0744 IMPROPER LOCK-UP OPERATION
Wiring Diagram Ð AT Ð TCCSIG
AT-156

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INFINITI QX4 2001  Factory Service Manual Diagnostic Procedure=NBAT0055
1 CHECK SHIFT UP (D3TO D4)
During ªCruise test þ Part 1º, AT-71.
Does A/T shift from D
3to D4at the specified speed?
SAT988H
YesorNo
Ye s©IGO TO 10.
IAnd check for pr

Page 163 of 2395

INFINITI QX4 2001  Factory Service Manual 4 CHECK SHIFT UP (D3TO D4)
Does A/T shift from D3to D4at the specified speed?
YesorNo
Ye s©GO TO 5.
No©Check control valve again. Repair or replace control valve assembly.
5 CHECK DTC
Perform Diagno

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INFINITI QX4 2001  Factory Service Manual 7 CHECK CONTROL VALVE
1. Disassemble control valve assembly. Refer to AT-301.
2. Check line pressure circuit valves for sticking.
IPressure regulator valve
IPilot valve
IPressure modifier valve
SAT367

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INFINITI QX4 2001  Factory Service Manual 12 CHECK CONTROL VALVE
1. Disassemble control valve assembly. Refer to AT-301.
2. Check control valves for sticking.
ITorque converter clutch control valve
ITorque converter clutch relief valve
SAT367

Page 166 of 2395

INFINITI QX4 2001  Factory Service Manual SAT159J
Component InspectionNBAT0056SOLENOID VALVESNBAT0056S01IFor removal, refer to AT-273.
Resistance CheckNBAT0056S0101ICheck resistance between terminals (6 or 7) and ground.
Solenoid valve Termin

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INFINITI QX4 2001  Factory Service Manual SAT341H
DescriptionNBAT0057The line pressure solenoid valve regulates the oil pump discharge
pressure to suit the driving condition in response to a signal sent
from the TCM.
The line pressure duty cy

Page 168 of 2395

INFINITI QX4 2001  Factory Service Manual SAT014K
SAT020K
DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION
PROCEDURE
NBAT0057S01NOTE:
If ªDIAGNOSTIC TROUBLE CODE CONFIRMATION PROCE-
DUREº has been previously conducted, always turn ignition
switch