2001 INFINITI QX4 IDX

SAT159J
Component InspectionNBAT0056SOLENOID VALVESNBAT0056S01IFor removal, refer to AT-273.
Resistance CheckNBAT0056S0101ICheck resistance between terminals (6 or 7) and ground.
Solenoid valve Terminal No. Resistance (Approx.)
Line pressure solenoid valve 6
Ground2.5-5W
Torque converter clutch
solenoid valve7 10-20W
SAT158J
Operation CheckNBAT0056S0102ICheck solenoid valve by listening for its operating sound while
applying battery voltage to the terminals (6 or 7) and ground.
GI
MA
EM
LC
EC
FE
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
DTC P0744 IMPROPER LOCK-UP OPERATION
Component Inspection
AT-161

SAT014K
SAT020K
DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION
PROCEDURE
NBAT0057S01NOTE:
If ªDIAGNOSTIC TROUBLE CODE CONFIRMATION PROCE-
DUREº has been previously conducted, always turn ignition
switch ªOFFº and wait at least 5 seconds before conducting
the next test.
After the repair, perform the following procedure to confirm the
malfunction is eliminated.
With CONSULT-II
1) Turn ignition switch ªONº and select ªDATA MONITORº mode
for ªENGINEº with CONSULT-II.
2) Depress accelerator pedal completely and wait at least 1 sec-
ond.
With GST
Follow the procedure ªWith CONSULT-IIº.
GI
MA
EM
LC
EC
FE
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
DTC P0745 LINE PRESSURE SOLENOID VALVE
Description (Cont'd)
AT-163

Diagnostic ProcedureNBAT0058
1 CHECK VALVE RESISTANCE
1. Turn ignition switch to ªOFFº position.
2. Disconnect terminal cord assembly connector on the right side of transfer assembly.
3. Check resistance between terminal 6 and ground.
SAT162J
Is resistance approx. 2.5 - 5W?
Ye s©GO TO 3.
No©GO TO 2.
2 CHECK VALVE OPERATION
1. Remove control valve assembly.
Refer to AT-273.
2. Check the following items:
ILine pressure solenoid valve
Refer to ªComponent Inspectionº, AT-167.
IHarness of terminal cord assembly for short or open
OK or NG
OK©GO TO 3.
NG©Repair or replace damaged parts.
GI
MA
EM
LC
EC
FE
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
DTC P0745 LINE PRESSURE SOLENOID VALVE
Diagnostic Procedure
AT-165

7 CHECK TCM INSPECTION
1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK©INSPECTION END
NG©Repair or replace damaged parts.
SAT657I
Component InspectionNBAT0059LINE PRESSURE SOLENOID VALVENBAT0059S01IFor removal, refer to AT-273.
Resistance CheckNBAT0059S0101ICheck resistance between terminal 6 and ground.
Solenoid valve Terminal No. Resistance (Approx.)
Line pressure solenoid valve 6 Ground 2.5 - 5W
SAT658I
Operation CheckNBAT0059S0102ICheck solenoid valve by listening for its operating sound while
applying battery voltage to the terminal 6 and ground.
SAT848BD
DROPPING RESISTORNBAT0059S02ICheck resistance between two terminals.
Resistance: 11.2 - 12.8W
GI
MA
EM
LC
EC
FE
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
DTC P0745 LINE PRESSURE SOLENOID VALVE
Diagnostic Procedure (Cont'd)
AT-167

Wiring Diagram Ð AT Ð SSV/ANBAT0197
MAT738A
GI
MA
EM
LC
EC
FE
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
DTC P0750 SHIFT SOLENOID VALVE A
Wiring Diagram Ð AT Ð SSV/A
AT-169

5 CHECK TCM INSPECTION
1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK©INSPECTION END
NG©Repair or replace damaged parts.
SAT654I
Component InspectionNBAT0062SHIFT SOLENOID VALVE ANBAT0062S01IFor removal, refer to AT-273.
Resistance CheckNBAT0062S0101ICheck resistance between terminal 3 and ground.
Solenoid valve Terminal No. Resistance (Approx.)
Shift solenoid valve A 3 Ground 20 - 40W
SAT653I
Operation CheckNBAT0062S0102ICheck solenoid valve by listening for its operating sound while
applying battery voltage to the terminal 3 and ground.
GI
MA
EM
LC
EC
FE
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
DTC P0750 SHIFT SOLENOID VALVE A
Diagnostic Procedure (Cont'd)
AT-171

Wiring Diagram Ð AT Ð SSV/BNBAT0198
MAT739A
GI
MA
EM
LC
EC
FE
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
DTC P0755 SHIFT SOLENOID VALVE B
Wiring Diagram Ð AT Ð SSV/B
AT-173

5 CHECK TCM INSPECTION
1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK©INSPECTION END
NG©Repair or replace damaged parts.
SAT651I
Component InspectionNBAT0065SHIFT SOLENOID VALVE BNBAT0065S01IFor removal, refer to AT-273.
Resistance CheckNBAT0065S0101ICheck resistance between terminal 2 and ground.
Solenoid valve Terminal No. Resistance (Approx.)
Shift solenoid valve B 2 Ground 20 - 40W
SAT650I
Operation CheckNBAT0065S0102ICheck solenoid valve by listening for its operating sound while
applying battery voltage to the terminal 2 and ground.
GI
MA
EM
LC
EC
FE
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
DTC P0755 SHIFT SOLENOID VALVE B
Diagnostic Procedure (Cont'd)
AT-175