o2 sensor NISSAN ALMERA 2001 Repair Manual

3 CHECK INPUT SIGNAL (WITHOUT CONSULT-II)
Without CONSULT-II
1. Apply vacuum to the throttle opener then check the following. Refer to steps 1 to 5 of ªPreparationº, ªSELF-DIAGNOS-
TIC PROCEDURE (Without CONSULT-II)º, AT-44.
2. Turn ignition switch to ªONº position.
(Do not start engine.)
3. Check voltage between TCM terminals 41 and 42 while accelerator pedal is depressed slowly.
Voltage:
Fully-closed throttle valve:
Approximately 0.5V
Fully-open throttle valve:
Approximately 4V
(Voltage rises gradually in response to throttle position)
SAT453J
OK or NG
OK©GO TO 5.
NG©Check harness for short or open between ECM and TCM regarding throttle position sen-
sor circuit. (Main harness)
THROTTLE POSITION
SENSOR
EXCEPT FOR EURO-OBD
Diagnostic Procedure (Cont'd)
AT-138

4 CHECK THROTTLE POSITION SWITCH CIRCUIT (WITH CONSULT-II)
With CONSULT-II
1. Apply vacuum to the throttle opener, then check the following. Refer to steps 1 to 5 of ªPreparationº, ªSELF-DIAGNOS-
TIC PROCEDURE (Without CONSULT-II)º, AT-44.
2. Turn ignition switch to ªONº position.
(Do not start engine.)
3. Select ªECU INPUT SIGNALSº in ªDATA MONITORº mode for ªA/Tº with CONSULT-II.
4. Read out ªCLOSED THL/SWº and ªW/O THRL/P-SWº depressing and releasing accelerator pedal.
Check the signal of throttle position switch is indicated properly.
MTBL0011
SAT702J
OK or NG
OK©GO TO 6.
NG©Check the following items:
+Throttle position switch Ð Refer to ªComponents Inspectionº, AT-141.
+Harness for short or open between ignition switch and throttle position switch (Main
harness)
+Harness for short or open between throttle position switch and TCM (Main harness)
THROTTLE POSITION
SENSOR
EXCEPT FOR EURO-OBD
Diagnostic Procedure (Cont'd)
AT-139

5 CHECK THROTTLE POSITION SWITCH CIRCUIT (WITHOUT CONSULT-II)
Without CONSULT-II
1. Apply vacuum to the throttle opener, then check the following. Refer to steps 1 to 5 of ªPreparationº, ªSELF-DIAGNOS-
TIC PROCEDURE (Without CONSULT-II)º, AT-44.
2. Turn ignition switch to ªONº position.
(Do not start engine.)
3. Check voltage between TCM terminals 16, 17 and ground while depressing, and releasing accelerator pedal slowly.
(After warming up engine)
MTBL0137
SAT454JA
OK or NG
OK©GO TO 6.
NG©Check the following items:
+Throttle position switch Ð Refer to ªComponents Inspectionº, AT-141.
+Harness for short or open between ignition switch and throttle position switch (Main
harness)
+Harness for short or open between throttle position switch and TCM (Main harness)
6 CHECK DTC
Perform Self-diagnosis Code confirmation procedure, AT-135.
OK or NG
OK©INSPECTION END
NG©1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminals for damage or loose connection with harness con-
nector.
THROTTLE POSITION
SENSOR
EXCEPT FOR EURO-OBD
Diagnostic Procedure (Cont'd)
AT-140

SAT851JA
Component Inspection=NJAT0072THROTTLE POSITION SWITCHNJAT0072S01Closed Throttle Position Switch (Idle position)NJAT0072S0101+Check continuity between terminals 4 and 5.
[Refer to ªPreparationº, ªSELF-DIAGNOSTIC PROCEDURE
(Without CONSULT-II)º, AT-44.]
Accelerator pedal condition Continuity
Released Yes
Depressed No
+To adjust closed throttle position switch, refer to EC-100,
ªBasic Inspectionº.
SAT852JA
Wide Open Throttle Position SwitchNJAT0072S0102+Check continuity between terminals 5 and 6.
Accelerator pedal condition Continuity
Released No
Depressed Yes
THROTTLE POSITION
SENSOR
EXCEPT FOR EURO-OBD
Component Inspection
AT-141

SAT322GC
DescriptionNJAT0064Shift 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 VALUENJAT0064S01Remarks: Specification data are reference values.
Terminal
No.Wire color Item ConditionJudgement stan-
dard
11 L/WShift solenoid
valve A
When shift solenoid valve A oper-
ates.
(When driving in ªD
1ºorªD4º.)Battery voltage
When shift solenoid valve A does
not operate.
(When driving in ªD
2ºorªD3º.)1V or less
ON BOARD DIAGNOSIS LOGICNJAT0064S02
Diagnostic trouble code Malfunction is detected when ... Check items (Possible cause)
: SHIFT SOLENOID/VA TCM detects an improper voltage drop
when it tries to operate the solenoid
valve.+Harness or connectors
(The solenoid circuit is open or shorted.)
+Shift solenoid valve A
: 4th judgement flicker
SHIFT SOLENOID VALVE AEXCEPT FOR EURO-OBD
Description
AT-142

SAT322GC
DescriptionNJAT0067Shift 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 VALUENJAT0067S01Remarks: Specification data are reference values.
Terminal
No.Wire color Item ConditionJudgement stan-
dard
12 L/YShift solenoid
valve B
When shift solenoid valve B oper-
ates.
(When driving in ªD
1ºorªD2º.)Battery voltage
When shift solenoid valve B does
not operate.
(When driving in ªD
3ºorªD4º.)1V or less
ON BOARD DIAGNOSIS LOGICNJAT0067S02
Diagnostic trouble code Malfunction is detected when ... Check items (Possible cause)
: SHIFT SOLENOID/VB TCM detects an improper voltage drop
when it tries to operate the solenoid
valve.+Harness or connectors
(The solenoid circuit is open or shorted.)
+Shift solenoid valve B
: 5th judgement flicker
SHIFT SOLENOID VALVE BEXCEPT FOR EURO-OBD
Description
AT-148

SAT322GC
DescriptionNJAT0073The 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 VALUENJAT0073S01Remarks: Specification data are reference values.
Terminal
No.Wire color Item ConditionJudgement stan-
dard
20 L/BOverrun clutch
solenoid valve
When overrun clutch solenoid valve
operates.Battery voltage
When overrun clutch solenoid valve
does not operate.1V or less
ON BOARD DIAGNOSIS LOGICNJAT0073S02
Diagnostic trouble code Malfunction is detected when ... Check items (Possible cause)
: OVERRUN CLUTCH S/V TCM detects an improper voltage drop
when it tries to operate the solenoid
valve.+Harness or connectors
(The solenoid circuit is open or shorted.)
+Overrun clutch solenoid valve
: 6th judgement flicker
SAT580J
SAT815H
SELF-DIAGNOSIS CODE CONFIRMATION PROCEDURENJAT0073S04After the repair, perform the following procedure to confirm the
malfunction is eliminated.
With CONSULT-IINJAT0073S04011) Start engine.
2) Select ªSELF-DIAG RESULTSº mode for A/T with CONSULT-
II.
3) Drive vehicle under the following conditions:
Selector lever in ªDº position, overdrive control switch in ªOFFº
position and vehicle speed higher than 10 km/h (6 MPH).
Without CONSULT-IINJAT0073S04021) Start engine.
2) Drive vehicle under the following conditions:
Selector lever in ªDº position, overdrive control switch in ªOFFº
position and vehicle speed higher than 10 km/h (6 MPH).
3) Perform self-diagnosis.
Refer to ªSELF-DIAGNOSTIC PROCEDURE (Without
CONSULT-II)º, AT-44.
OVERRUN CLUTCH SOLENOID
VALVE
EXCEPT FOR EURO-OBD
Description
AT-154

SAT322GC
DescriptionNJAT0055The torque converter clutch solenoid valve is activated, with the
gear in ªD
4º, by the TCM in response to signals sent from the
vehicle speed and throttle position sensors. Lock-up piston opera-
tion will then be controlled.
Lock-up operation, however, is prohibited when A/T fluid tempera-
ture is too low.
When the accelerator pedal is depressed (less than 2/8) in lock-up
condition, the engine speed should not change abruptly. If there is
a big jump in engine speed, there is no lock-up.
CONSULT-II REFERENCE VALUE IN DATA MONITOR
MODE
NJAT0055S01Remarks: Specification data are reference values.
Monitor item Condition Specification
Torque converter clutch solenoid valve
dutyLock-up ªOFFº
¯
Lock-up ªONºApproximately 4%
¯
Approximately 94%
TCM TERMINALS AND REFERENCE VALUENJAT0055S02Remarks: Specification data are reference values.
Terminal
No.Wire color Item ConditionJudgement
standard
3 GY/RTorque converter
clutch solenoid
valve
When A/T performs lock-up. 8 - 15V
When A/T does not perform lock-
up.1V or less
ON BOARD DIAGNOSIS LOGICNJAT0055S03
Diagnostic trouble code Malfunction is detected when ... Check items (Possible cause)
: T/C CLUTCH SOL/V TCM detects an improper voltage drop
when it tries to operate the solenoid
valve.+Harness or connectors
(The solenoid circuit is open or shorted.)
+T/C clutch solenoid valve
: 7th judgement flicker
TORQUE CONVERTER CLUTCH
SOLENOID VALVE
EXCEPT FOR EURO-OBD
Description
AT-159

SAT283HC
SAT021J
DescriptionNJAT0076The A/T fluid temperature sensor detects the A/T fluid temperature
and sends a signal to the TCM.
CONSULT-II REFERENCE VALUE IN DATA MONITOR
MODE
NJAT0076S01Remarks: Specification data are reference values.
Monitor item Condition Specification
A/T fluid temperature sensorCold [20ÉC (68ÉF)]
¯
Hot [80ÉC (176ÉF)]Approximately 1.5V
¯
Approximately 0.5VApproximately 2.5 kW
¯
Approximately 0.3 kW
TCM TERMINALS AND REFERENCE VALUENJAT0076S02Remarks: Specification data are reference values.
Terminal
No.Wire color Item ConditionJudgement
standard
10 BR/R Power source
When turning ignition switch to
ªONº.Battery voltage
When turning ignition switch to
ªOFFº.1V or less
19 BR/R Power source Same as No. 10
28 R/BPower source
(Memory back-up)
or
When turning ignition switch to
ªOFFº.Battery voltage
When turning ignition switch to
ªONº.Battery voltage
42 BGround
(A/T fluid tempera-
ture sensor)
ÐÐ
47 BRA/T fluid tempera-
ture sensorWhen ATF temperature is 20ÉC
(68ÉF).Approximately
1.5V
When ATF temperature is 80ÉC
(176ÉF).Approximately
0.5V
BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM
POWER SOURCE)
EXCEPT FOR EURO-OBD
Description
AT-165

ON BOARD DIAGNOSIS LOGICNJAT0076S03
Diagnostic trouble code Malfunction is detected when ... Check items (Possible cause)
: BATT/FLUID TEMP SEN
TCM receives an excessively low or high
voltage from the sensor.+Harness or connectors
(The sensor circuit is open or shorted.)
+A/T fluid temperature sensor
: 8th judgement flicker
SAT580J
SAT821H
SELF-DIAGNOSIS CODE CONFIRMATION PROCEDURENJAT0076S05After the repair, perform the following procedure to confirm the
malfunction is eliminated.
With CONSULT-IINJAT0076S05011) Start engine.
2) Select ªSELF-DIAG RESULTSº mode for A/T with CONSULT-
II.
3) Drive vehicle under the following conditions:
Selector lever in ªDº position, vehicle speed higher than 10
km/h (6 MPH), throttle opening greater than 1/8 of the full open
position, engine speed higher than 450 rpm and driving for
more than 10 minutes.
Without CONSULT-IINJAT0076S05021) Start engine.
2) Drive vehicle under the following conditions:
Selector lever in ªDº position, vehicle speed higher than 10
km/h (6 MPH), throttle opening greater than 1/8 of the full open
position, engine speed higher than 450 rpm and driving for
more than 10 minutes.
3) Perform self-diagnosis.
Refer to ªSELF-DIAGNOSTIC PROCEDURE (Without
CONSULT-II)º, AT-44.
BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM
POWER SOURCE)
EXCEPT FOR EURO-OBD
Description (Cont'd)
AT-166