Battery INFINITI QX4 2001 Factory Owner's Manual

SAT159J
Component InspectionNBAT0050SOLENOID VALVESNBAT0050S01IFor removal, refer to AT-273.
Resistance CheckNBAT0050S0101ICheck resistance between terminals (3, 2 or 6) and ground.
Solenoid valve Terminal No. Resistance (Approx.)
Shift solenoid valve A 3
Ground20-40W
Shift solenoid valve B 2
Line pressure solenoid valve 6 2.5 - 5W
SAT158J
Operation CheckNBAT0050S0102ICheck solenoid valve by listening for its operating sound while
applying battery voltage to the terminals (3, 2 or 6) and ground.
GI
MA
EM
LC
EC
FE
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
DTC P0734 IMPROPER SHIFTING TO 4TH GEAR POSITION
Component Inspection
AT-147

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.
SAT160J
Component InspectionNBAT0053TORQUE CONVERTER CLUTCH SOLENOID VALVENBAT0053S01IFor removal, refer to AT-273.
Resistance CheckNBAT0053S0101ICheck resistance between terminal 7 and ground.
Solenoid valve Terminal No. Resistance (Approx.)
Torque converter clutch
solenoid valve7 Ground 10 - 20W
SAT161J
Operation CheckNBAT0053S0102ICheck solenoid valve by listening for its operating sound while
applying battery voltage to the terminal 7 and ground.
DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE
Diagnostic Procedure (Cont'd)
AT-152

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

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

SAT341H
DescriptionNBAT0060Shift solenoid valves A and B are turned ªONº or ªOFFº by the TCM
in response to signals sent from the PNP switch, vehicle speed and
throttle position sensors. Gears will then be shifted to the optimum
position.
Gear position1234
Shift solenoid valve A ON (Closed) OFF (Open) OFF (Open) ON (Closed)
Shift solenoid valve B ON (Closed) ON (Closed) OFF (Open) OFF (Open)
TCM TERMINALS AND REFERENCE VALUENBAT0060S02Remarks: Specification data are reference values.
Terminal
No.Wire color Item ConditionJudgement
standard
(Approx.)
11 L/WShift solenoid
valve A
When shift solenoid valve A operates.
(When driving in ªD
1ºorªD4º.)Battery volt-
age
When shift solenoid valve A does not operate.
(When driving in ªD
2ºorªD3º.)0V
ON BOARD DIAGNOSIS LOGICNBAT0060S03
Diagnostic trouble code Malfunction is detected when ... Check item (Possible cause)
: SFT SOL A/CIRC TCM detects an improper voltage drop
when it tires to operate the solenoid
valve.IHarness or connectors
(The solenoid circuit is open or shorted.)
IShift solenoid valve A
: P0750
SAT014K
SAT020K
DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION
PROCEDURE
NBAT0060S01CAUTION:
Always drive vehicle at a safe speed.
NOTE:
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) Start engine.
3) Drive vehicle in ªDº position and allow the transmission to shift
ª1º,ª2º (ªGEARº).
With GST
Follow the procedure ªWith CONSULT-IIº.
DTC P0750 SHIFT SOLENOID VALVE A
Description
AT-168

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

SAT341H
DescriptionNBAT0063Shift solenoid valves A and B are turned ªONº or ªOFFº by the TCM
in response to signals sent from the PNP switch, vehicle speed and
throttle position sensors. Gears will then be shifted to the optimum
position.
Gear position1234
Shift solenoid valve A ON (Closed) OFF (Open) OFF (Open) ON (Closed)
Shift solenoid valve B ON (Closed) ON (Closed) OFF (Open) OFF (Open)
TCM TERMINALS AND REFERENCE VALUENBAT0063S02Remarks: Specification data are reference values.
Terminal
No.Wire color Item ConditionJudgement
standard
(Approx.)
12 L/RShift solenoid
valve B
When shift solenoid valve B operates.
(When driving in ªD
1ºorªD2º.)Battery volt-
age
When shift solenoid valve B does not operate.
(When driving in ªD
3ºorªD4º.)0V
ON BOARD DIAGNOSIS LOGICNBAT0063S03
Diagnostic trouble code Malfunction is detected when ... Check item (Possible cause)
: SFT SOL B/CIRC TCM detects an improper voltage drop
when it tires to operate the solenoid
valve.IHarness or connectors
(The solenoid circuit is open or shorted.)
IShift solenoid valve B
: P0755
SAT014K
SAT020K
DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION
PROCEDURE
NBAT0063S01CAUTION:
Always drive vehicle at a safe speed.
NOTE:
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) Drive vehicle in ªDº position and allow the transmission to shift
1,2,3 (ªGEARº).
With GST
Follow the procedure ªWith CONSULT-IIº.
DTC P0755 SHIFT SOLENOID VALVE B
Description
AT-172

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

SAT142K
DescriptionNBAT0066IThrottle position sensor
The throttle position sensor detects the throttle valve position
and sends a signal to the TCM.
IThrottle position switch
Consists of a wide open throttle position switch and a closed
throttle position switch. The wide open position switch sends
a signal to the TCM when the throttle valve is open at least 1/2
of the full throttle position. The closed throttle position switch
sends a signal to the TCM when the throttle valve is fully
closed.
CONSULT-II REFERENCE VALUE IN DATA MONITOR
MODE
NBAT0066S02Remarks: Specification data are reference values.
Monitor item Condition Specification
Throttle position sensorFully-closed throttle Approximately 0.5V
Fully-open throttle Approximately 4V
TCM TERMINALS AND REFERENCE VALUENBAT0066S03Remarks: Specification data are reference values.
Terminal
No.Wire color Item ConditionJudgement
standard
(Approx.)
16 OR/WClosed throttle
position switch
(in throttle
position switch)
When releasing accelerator pedal after warm-
ing up engine.
[Refer to ªPreparationº, ªTCM SELF-DIAG-
NOSTIC PROCEDURE (No Tools)º, AT-46.]Battery volt-
age
When depressing accelerator pedal after
warming up engine.
[Refer to ªPreparationº, ªTCM SELF-DIAG-
NOSTIC PROCEDURE (No Tools)º, AT-46.]0V
17 OR/BWide open
throttle position
switch
(in throttle
position switch)When depressing accelerator pedal more than
half-way after warming up engine.Battery volt-
age
When releasing accelerator pedal after warm-
ing up engine.0V
32 P/BThrottle position
sensor
(Power source)Ignition switch ªONº. 4.5 - 5.5V
Ignition switch ªOFFº. 0V
41 PThrottle position
sensorWhen depressing accelerator pedal slowly
after warming up engine.
(Voltage rises gradually in response to throttle
position.)Fully-closed
throttle:
0.5 - 0.7V
Fully-open
throttle:
4V
42 BThrottle position
sensor
(Ground)ÐÐ
DTC P1705 THROTTLE POSITION SENSOR
Description
AT-176

SAT341H
DescriptionNBAT0068The overrun clutch solenoid valve is activated by the TCM in
response to signals sent from the inhibitor switch, overdrive con-
trol switch, vehicle speed and throttle position sensors. The over-
run clutch operation will then be controlled.
TCM TERMINALS AND REFERENCE VALUENBAT0068S02Remarks: Specification data are reference values.
Terminal
No.Wire color Item ConditionJudgement
standard
(Approx.)
20 L/BOverrun clutch
solenoid valve
When overrun clutch solenoid valve operates.Battery volt-
age
When overrun clutch solenoid valve does not
operate.0V
ON BOARD DIAGNOSIS LOGICNBAT0068S03
Diagnostic trouble code Malfunction is detected when ... Check item (Possible cause)
: O/R CLTCH SOL/CIRCTCM detects an improper voltage drop
when it tries to operate the solenoid
valve.IHarness or connectors
(The solenoid circuit is open or shorted.)
IOverrun clutch solenoid valve
: P1760
SAT014K
SAT020K
DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION
PROCEDURE
NBAT0068S01CAUTION:
Always drive vehicle at a safe speed.
NOTE:
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.
TESTING CONDITION:
Always drive vehicle on a level road to improve accuracy of
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) Start engine.
3) Accelerate vehicle to a speed of more than 10 km/h (6MPH)
in ªDº position (OD ªONº).
4) Release accelerator pedal completely in ªDº position (OD
ªOFFº).
GI
MA
EM
LC
EC
FE
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
DTC P1760 OVERRUN CLUTCH SOLENOID VALVE
Description
AT-185