NISSAN ALMERA N16 2001 Electronic Repair Manual

Diagnostic ProcedureNJAT0071
1 CHECK DTC WITH ECM
Perform diagnostic test mode II (self-diagnostic results) for engine control.
Refer to EC-72, ªMalfunction Indicator Lamp (MIL)º.
OK or NG
OK (With CONSULT-II)©GO TO 2.
OK (Without CONSULT-
II)©GO TO 3.
NG©Check throttle position sensor circuit for engine control. Refer to EC-168, ªDTC P0120
THROTTLE POSITION SENSORº.
2 CHECK INPUT SIGNAL (WITH CONSULT-II)
With CONSULT-II
1. Apply vacuum to the throttle opener then check the following. Refer from step 1 to 5 of ªPreparationº, ªSELF-DIAG-
NOSTIC PROCEDURE (Without CONSULT-II)º, AT-42.
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.
SAT580J
4. Read out the value of ªTHRTL POS SENº.
Voltage:
Fully-closed throttle:
Approximately 0.5V
Fully-open throttle:
Approximately 4V
SAT614J
OK or NG
OK©GO TO 4.
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
AT-135

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-42.
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-136

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-42.
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-139.
+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-137

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-42.
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-139.
+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-133.
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-138

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-42.]
Accelerator pedal condition Continuity
Released Yes
Depressed No
+To adjust closed throttle position switch, refer to EC-98, 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-139

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-140

SAT580J
SAT809H
SELF-DIAGNOSIS CODE CONFIRMATION PROCEDURENJAT0064S04After the repair, perform the following procedure to confirm the
malfunction is eliminated.
With CONSULT-IINJAT0064S04011) Start engine.
2) Select ªSELF-DIAG RESULTSº mode for A/T with CONSULT-
II.
3) Drive vehicle in D
1®D2position.
Without CONSULT-IINJAT0064S04021) Start engine.
2) Drive vehicle in D
1®D2position.
3) Perform self-diagnosis.
Refer to ªSELF-DIAGNOSTIC PROCEDURE (Without
CONSULT-II)º, AT-42.
SHIFT SOLENOID VALVE AEXCEPT FOR EURO-OBD
Description (Cont'd)
AT-141

Wiring Diagram Ð AT Ð SSV/ANJAT0210
YAT241
SHIFT SOLENOID VALVE AEXCEPT FOR EURO-OBD
Wiring Diagram Ð AT Ð SSV/A
AT-142

Diagnostic ProcedureNJAT0065
1 CHECK VALVE RESISTANCE
1. Turn ignition switch to ªOFFº position.
2. Disconnect terminal cord assembly connector in engine compartment.
3. Check resistance between terminal 2 and ground.
Resistance:
20-30W
SAT900JA
OK or NG
OK©GO TO 2.
NG©1. Remove control valve assembly. Refer to AT-343.
2. Check the following items:
+Shift solenoid valve A
Refer to ªComponent Inspectionº, AT-145.
+Harness of terminal cord assembly for short or open
SHIFT SOLENOID VALVE AEXCEPT FOR EURO-OBD
Diagnostic Procedure
AT-143

2 CHECK POWER SOURCE CIRCUIT
1. Turn ignition switch to ªOFFº position.
2. Disconnect TCM harness connector.
3. Check continuity between terminal 2 and TCM harness connector terminal 11.
Continuity should exist.
SAT901JB
If OK, check harness for short to ground and short to power.
4. Reinstall any part removed.
OK or NG
OK©GO TO 3.
NG©Repair open circuit or short to ground or short to power in harness or connectors.
3 CHECK DTC
Perform Self-diagnosis Code confirmation procedure, AT-141.
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.
SHIFT SOLENOID VALVE AEXCEPT FOR EURO-OBD
Diagnostic Procedure (Cont'd)
AT-144