2001 NISSAN ALMERA Ignition system

Supplemental Restraint System (SRS) ªAIR
BAGº and ªSEAT BELT PRE-TENSIONERº
NJAT0249The Supplemental Restraint System such as ªAIR BAGº and ªSEAT BELT PRE-TENSIONERº used along with
a seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain types of
collision. The SRS system composition which is available to NISSAN MODEL N16 is as follows (The compo-
sition varies according to the destination and optional equipment.):
+For a frontal collision
The Supplemental Restraint System consists of driver air bag module (located in the center of the steer-
ing wheel), front passenger air bag module (located on the instrument panel on passenger side), front seat
belt pre-tensioners, a diagnosis sensor unit, warning lamp, wiring harness and spiral cable.
+For a side collision
The Supplemental Restraint System consists of front side air bag module (located in the outer side of front
seat), side air bag (satellite) sensor, diagnosis sensor unit (one of components of air bags for a frontal
collision), wiring harness, warning lamp (one of components of air bags for a frontal collision).
Information necessary to service the system safely is included in theRS sectionof this Service Manual.
WARNING:
+To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance should be per-
formed by an authorized NISSAN dealer.
+Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the RS section.
+Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. Spiral cable and wiring harnesses covered with yellow insulation tape either just
before the harness connectors or for the complete harness are related to the SRS.
Precautions for On Board Diagnostic (EURO-
OBD) System of A/T and Engine Ð Euro-OBD
Ð
NJAT0245The ECM has an on board diagnostic system. It will light up the malfunction indicator lamp (MIL) to warn the
driver of a malfunction causing emission deterioration.
CAUTION:
+Be sure to turn the ignition switch ªOFFº and disconnect the negative battery terminal before any
repair or inspection work. The open/short circuit of related switches, sensors, solenoid valves, etc.
will cause the MIL to light up.
+Be sure to connect and lock the connectors securely after work. A loose (unlocked) connector will
cause the MIL to light up due to an open circuit. (Be sure the connector is free from water, grease,
dirt, bent terminals, etc.)
+Be sure to route and secure the harnesses properly after work. Interference of the harness with a
bracket, etc. may cause the MIL to light up due to a short circuit.
+Be sure to connect rubber tubes properly after work. A misconnected or disconnected rubber tube
may cause the MIL to light up due to a malfunction of the EGR system or fuel injection system,
etc.
+Be sure to erase the unnecessary malfunction information (repairs completed) from the TCM and
ECM before returning the vehicle to the customer.
SEF289H
PrecautionsNJAT0246+Before connecting or disconnecting the TCM harness
connector, turn ignition switch OFF and disconnect nega-
tive battery terminal. Failure to do so may damage the
TCM. Because battery voltage is applied to TCM even if
ignition switch is turned off.
PRECAUTIONS
Supplemental Restraint System (SRS) ªAIR BAGº and ªSEAT BELT PRE-TENSIONERº
AT-7

parts. Apply petroleum jelly to protect O-rings and seals, or
hold bearings and washers in place during assembly. Do not
use grease.
+Extreme care should be taken to avoid damage to O-rings,
seals and gaskets when assembling.
+After overhaul, refill the transaxle with new ATF.
+When the A/T drain plug is removed, only some of the fluid is
drained. Old A/T fluid will remain in torque converter and ATF
cooling system.
Always follow the procedures under ªChanging A/T Fluidº in the
AT section when changing A/T fluid. Refer to ªChanging A/T
Fluidº, AT-15.
Service Notice or PrecautionsNJAT0247FAIL-SAFENJAT0247S01The TCM has an electronic Fail-Safe (limp home mode). This allows the vehicle to be driven even if a major
electrical input/output device circuit is damaged.
Under Fail-Safe, the vehicle always runs in third gear, even with a shift lever position of ª1º, ª2º or ªDº. The
customer may complain of sluggish or poor acceleration.
When the ignition key is turned ªONº following Fail-Safe operation, O/D OFF indicator lamp blinks for about
8 seconds. (For GENERAL AND EXCEPT FOR EURO-OBD; ªSELF-DIAGNOSTIC PROCEDURE (WITHOUT
CONSULT-II)º, refer to AT-44 and for EURO-OBD; ªTCM SELF-DIAGNOSTIC PROCEDURE (No Tools)º, refer
to AT-63.)
Fail-Safe may occur without electrical circuit damage if the vehicle is driven under extreme conditions (such
as excessive wheel spin followed by sudden braking). To recover normal shift pattern, turn the ignition key
ªOFFº for 5 seconds, then ªONº.
The blinking of the O/D OFF indicator lamp for about 8 seconds will appear only once and be cleared. The
customer may resume normal driving conditions.
Always follow the ªWORK FLOWº [Refer to AT-73 (General and except for Euro-OBD), AT-78 (EURO-OBD).]
The SELF-DIAGNOSIS results will be as follows:
The first SELF-DIAGNOSIS will indicate damage to the vehicle speed sensor or the revolution sensor.
During the next SELF-DIAGNOSIS, performed after checking the sensor, no damages will be indicated.
TORQUE CONVERTER SERVICENJAT0247S02The torque converter should be replaced under any of the following conditions:
+External leaks in the hub weld area.
+Converter hub is scored or damaged.
+Converter pilot is broken, damaged or fits poorly into crankshaft.
+Steel particles are found after flushing the cooler and cooler lines.
+Pump is damaged or steel particles are found in the converter.
+Vehicle has TCC shudder and/or no TCC apply. Replace only after all hydraulic and electrical diagnoses
have been made. (Converter clutch material may be glazed.)
+Converter is contaminated with engine coolant containing antifreeze.
+Internal failure of stator roller clutch.
+Heavy clutch debris due to overheating (blue converter).
+Steel particles or clutch lining material found in fluid filter or on magnet when no internal parts in unit are
worn or damaged Ð indicates that lining material came from converter.
PRECAUTIONS
Precautions (Cont'd)
AT-9

Item DisplayMonitor item
Description Remarks
ECU input
signalsMain sig-
nals
Shift solenoid valve A SHIFT S/V A
[ON/OFF]
ÐX+Control value of shift
solenoid valve A, com-
puted by TCM from
each input signal, is dis-
played.Control value of solenoid
is displayed even if sole-
noid circuit is discon-
nected.
The ªOFFº signal is dis-
played if solenoid circuit is
shorted. Shift solenoid valve B SHIFT S/V B
[ON/OFF]
ÐX+Control value of shift
solenoid valve B, com-
puted by TCM from
each input signal, is dis-
played.
Overrun clutch solenoid
valveOVERRUN/C S/V
[ON/OFF]
ÐX+Control value of overrun
clutch solenoid valve
computed by TCM from
each input signal is dis-
played.
Self-diagnosis display
lamp
(O/D OFF indicator lamp)SELF-D DP LMP
[ON/OFF] Ð X+Control status of O/D
OFF indicator lamp is
displayed.
X: Applicable
Ð: Not applicable
SAT580J
HOW TO ERASE SELF-DIAGNOSTIC RESULTS
(
WITH CONSULT-II)NJAT0022S081. If the ignition switch stays ªONº after repair work, be sure to
turn ignition switch ªOFFº once. Wait for at least 3 seconds and
then turn it ªONº again.
2. Turn CONSULT-II ªONº, and touch ªA/Tº.
SAT971J
3. Touch ªSELF-DIAG RESULTSº.
ON BOARD DIAGNOSTIC
SYSTEM DESCRIPTION
EXCEPT FOR EURO-OBD
CONSULT-II (Cont'd)
AT-43

SAT970J
4. Touch ªERASEº. (The self-diagnostic results will be erased.)
SAT491J
SAT851JA
Diagnostic Procedure Without CONSULT-IINJAT0230SELF-DIAGNOSTIC PROCEDURE (WITHOUT
CONSULT-II)
NJAT0230S01PreparationNJAT0230S01011. Turn ignition switch to ªOFFº position.
2. Connect the handy type vacuum pump to the throttle opener
and apply vacuum þ25.3 kPa (þ253 mbar, þ190 mmHg, þ7.48
inHg). (If throttle opener is equipped)
3. Disconnect the throttle position switch harness connector.
4. Turn ignition switch to ªONº position.
5. Check continuity of the closed throttle position switch.
Continuity should exist.
(If continuity does not exist, check throttle opener and
closed throttle position switch. Then increase vacuum
until closed throttle position switch shows continuity.)
6. Go to ªSelf-diagnostic procedure (Without CONSULT-II)º.
ON BOARD DIAGNOSTIC
SYSTEM DESCRIPTION
EXCEPT FOR EURO-OBD
CONSULT-II (Cont'd)
AT-44

1 CHECK O/D OFF INDICATOR LAMP
1. Start engine and warm it up to normal operating temperature.
2. Turn ignition switch to ªOFFº position.
Wait 5 seconds.
3. Turn ignition switch to ªACCº position.
SAT774B
4. Set overdrive control switch to ªONº position.
5. Move selector lever to ªPº position.
6. Turn ignition switch to ªONº position. (Do not start engine.)
7. Does O/D OFF indicator lamp come on for about 2 seconds?
SAT123KA
YesorNo
Ye s©GO TO 2.
No©Go to ª1. O/D OFF Indicator Lamp Does Not Come Onº, AT-296.
2 JUDGEMENT PROCEDURE STEP 1
1. Turn ignition switch to ªOFFº position.
2. Turn ignition switch to ªACCº position.
3. Move selector lever to ªDº position.
4. Set overdrive control switch to ªOFFº position.
5. Turn ignition switch to ªONº position. (Do not start engine.)
+Wait more than 2 seconds after turning ignition switch ªONº.
SAT653E
©GO TO 3.
ON BOARD DIAGNOSTIC
SYSTEM DESCRIPTION
EXCEPT FOR EURO-OBD
Diagnostic Procedure Without CONSULT-II (Cont'd)
AT-45

O/D OFF indicator lamp:
10th judgement flicker is longer than others.
SAT455F
Line pressure solenoid valve circuit is short-circuited or discon-
nected.
ÞGo to LINE PRESSURE SOLENOID VALVE.
General: AT-176Flickers as shown below.
SAT457F
Battery power is low.
Battery has been disconnected for a long time.
Battery is connected conversely.
(When reconnecting TCM connectors. Ð This is not a problem.)
Lamp comes on.
SAT367J
PNP switch, overdrive control switch or throttle position switch
circuit is disconnected or TCM is damaged.
ÞGo to 21. TCM Self-diagnosis Does Not Activate (PNP,
OVERDRIVE CONTROL AND THROTTLE POSITION
SWITCHES).
General: AT-334
t
1= 2.5 seconds t2= 2.0 seconds t3= 1.0 second t4= 1.0 second
HOW TO ERASE SELF-DIAGNOSTIC RESULTS
(
WITHOUT CONSULT-II)NJAT0230S031. If the ignition switch stays ªONº after repair work, be sure to
turn ignition switch ªOFFº once. Wait for at least 3 seconds and
then turn it ªONº again.
2. Perform ªSELF-DIAGNOSTIC PROCEDURE (Without CON-
SULT-II)º. Refer to AT-44.
3. Turn ignition switch ªOFFº. (The self-diagnostic results will be
erased.)
ON BOARD DIAGNOSTIC
SYSTEM DESCRIPTION
EXCEPT FOR EURO-OBD
Diagnostic Procedure Without CONSULT-II (Cont'd)
AT-49

Priority Items
1 Freeze frame data Misfire Ð DTC: P0300 - P0306
Fuel Injection System Function Ð DTC: P0171, P0172, P0174, P0175
2 Except the above items (Includes A/T related items)
3 1st trip freeze frame data
Both 1st trip freeze frame data and freeze frame data (along with the DTCs) are cleared when the ECM
memory is erased.
HOW TO ERASE DTCNJAT0254S02The diagnostic trouble code can be erased by CONSULT-II, GST or ECM DIAGNOSTIC TEST MODE as
described following.
+If the battery terminal is disconnected, the diagnostic trouble code will be lost within 24 hours.
+When you erase the DTC, using CONSULT-II or GST is easier and quicker than switching the mode
selector on the ECM.
The following emission-related diagnostic information is cleared from the ECM memory when erasing DTC
related to EURO-OBD. For details, refer to EC-70, ªHow to Erase Emission-related Diagnostic Informationº.
+Diagnostic trouble codes (DTC)
+1st trip diagnostic trouble codes (1st trip DTC)
+Freeze frame data
+1st trip freeze frame data
+System readiness test (SRT) codes
+Test values
HOW TO ERASE DTC (WITH CONSULT-II)NJAT0254S03+If a DTC is displayed for both ECM and TCM, it needs to be erased for both ECM and TCM.
1. If the ignition switch stays ªONº after repair work, be sure to turn ignition switch ªOFFº once. Wait at least
5 seconds and then turn it ªONº (engine stopped) again.
2. Turn CONSULT-II ªONº and touch ªA/Tº.
3. Touch ªSELF DIAGNOSISº.
4. Touch ªERASEº. (The DTC in the TCM will be erased.) Then touch ªBACKº twice.
5. Touch ªENGINEº.
6. Touch ªSELF DIAGNOSISº.
7. Touch ªERASEº. (The DTC in the ECM will be erased.)
ON BOARD DIAGNOSTIC SYSTEM
DESCRIPTION
EURO-OBD
EURO-OBD Diagnostic Trouble Code (DTC) (Cont'd)
AT-52

SAT017K
HOW TO ERASE DTC (WITH GST)NJAT0254S041. If the ignition switch stays ªONº after repair work, be sure to turn ignition switch ªOFFº once. Wait at least
5 seconds and then turn it ªONº (engine stopped) again.
2. Perform ªEURO-OBD SELF-DIAGNOSTIC PROCEDURE (No Tools)º. Refer to AT-63. (The engine
warm-up step can be skipped when performing the diagnosis only to erase the DTC.)
3. Select Mode 4 with Generic Scan Tool (GST). For details, refer to EC-94, ªGeneric Scan Tool (GST)º.
HOW TO ERASE DTC (NO TOOLS)NJAT0254S051. If the ignition switch stays ªONº after repair work, be sure to turn ignition switch ªOFFº once. Wait at least
5 seconds and then turn it ªONº (engine stopped) again.
2. Perform ªTCM SELF-DIAGNOSTIC PROCEDURE (No Tools)º. Refer to AT-63. (The engine warm-up step
can be skipped when performing the diagnosis only to erase the DTC.)
ON BOARD DIAGNOSTIC SYSTEM
DESCRIPTION
EURO-OBD
EURO-OBD Diagnostic Trouble Code (DTC) (Cont'd)
AT-53