display NISSAN PICK-UP 2001 Repair Manual

SEF289H
PrecautionsNEEC0005+Before connecting or disconnecting the ECM harness
connector, turn ignition switch OFF and disconnect nega-
tive battery terminal. Failure to do so may damage the
ECM because battery voltage is applied to ECM even if
ignition switch is turned off.
SEF308Q
+When connecting ECM harness connector, tighten secur-
ing bolt until the gap between orange indicators disap-
pears.
:3-5N´m(0.3 - 0.5 kg-m, 26 - 43 in-lb)
SEF291H
+When connecting or disconnecting pin connectors into or
from ECM, take care not to damage pin terminals (bend or
break).
Make sure that there are not any bends or breaks on ECM
pin terminals when connecting pin connectors.
MEF040D
+Before replacing ECM, perform Terminals and Reference
Value inspection and make sure ECM functions properly.
Refer to EC-3110.
SAT652J
+After performing each TROUBLE DIAGNOSIS, perform
ªOverall Function Checkº or ªDTC Confirmation Proce-
dureº.
The DTC should not be displayed in the ªDTC Confirma-
tion Procedureº if the repair is completed. The ªOverall
Function Checkº should be a good result if the repair is
completed.
PRECAUTIONSKA24DE (EURO OBD)
Precautions
EC-3014

INSPECTION PROCEDURE=NEEC0028S02
1 INSPECTION START
1. Visually check the following:
+Air cleaner clogging
+Hoses and duct for leaks
+Electrical connectors
+Gasket (intake manifold, cylinder head, exhaust system)
+Throttle valve and throttle position sensor operation
2. Start engine and warm it up until engine coolant temperature indicator points to the middle of gauge.
Ensure engine speed stays below 1,000 rpm.
SEF810K
3. Open engine hood and run engine at about 2,000 rpm for about 2 minutes under no-load.
4. Make sure that no DTC is displayed with CONSULT-II or GST.
OK or NG
OK©+GO TO 2. (With CONSULT-II)
+GO TO 3. (Without CONSULT-II)
NG©1. Repair or replace components as necessary.
2. GO TO 2. (With CONSULT-II)
3. GO TO 3. (Without CONSULT-II)
BASIC SERVICE PROCEDUREKA24DE (EURO OBD)
Idle Speed/Ignition Timing/Idle Mixture Ratio Adjustment
EC-3037

IntroductionNEEC0029The ECM has an on board diagnostic system which detects malfunctions related to engine sensors or actua-
tors. The ECM also records various emission-related diagnostic information including:
Diagnostic Trouble Code (DTC) Mode 3 of ISO 15031-5
Freeze Frame data Mode 2 of ISO 15031-5
System Readiness Test (SRT) code Mode 1 of ISO 15031-5
1st Trip Diagnostic Trouble Code (1st Trip DTC) Mode 7 of ISO 15031-5
1st Trip Freeze Frame data
Test values and Test limits Mode 6 of ISO 15031-5
Calibration ID Mode 9 of ISO 15031-6
The above information can be checked using procedures listed in the table below.
X: Applicable Ð: Not applicable
DTC 1st trip DTCFreeze Frame
data1st trip Freeze
Frame dataSRT code Test value
CONSULT-IIXXXXXÐ
GST X X*1 X Ð X X
*1: 1st trip DTCs for self-diagnoses concerning SRT items cannot be shown on the GST display.
The malfunction indicator (MI) on the instrument panel lights up when the same malfunction is detected in two
consecutive trips (Two trip detection logic), or when the ECM enters fail-safe mode. (Refer to EC-3101.)
Two Trip Detection LogicNEEC0030When a malfunction is detected for the first time, 1st trip DTC and 1st trip Freeze Frame data are stored in
the ECM memory. The MI will not light up at this stage. <1st trip>
If the same malfunction is detected again during the next drive, the DTC and Freeze Frame data are stored
in the ECM memory, and the MI lights up. The MI lights up at the same time when the DTC is stored. <2nd
trip> The ªtripº in the ªTwo Trip Detection Logicº means a driving mode in which self-diagnosis is performed
during vehicle operation. Specific on board diagnostic items will cause the ECM to light up or blink the MI,
and store DTC and Freeze Frame data, even in the 1st trip, as shown below.
X: Applicable Ð: Not applicable
ItemsMI DTC 1st trip DTC
1st trip 2nd trip
1st trip
displaying2nd trip
displaying1st trip
displaying2nd trip
displaying
Blinking Lighting up Blinking Lighting up
Misfire (Possible three way cata-
lyst damage) Ð DTC: P0300 -
P0304 is being detectedX ÐÐÐÐÐXÐ
Misfire (Possible three way cata-
lyst damage) Ð DTC: P0300 -
P0304 is being detectedÐÐ X ÐÐXÐÐ
Fail-safe items (Refer to
EC-3101.)Ð X Ð Ð X*1 Ð X*1 Ð
Except above Ð Ð Ð X Ð X X Ð
*1: Except ªECMº
Emission-related Diagnostic InformationNEEC0031DTC AND 1ST TRIP DTCNEEC0031S01The 1st trip DTC (whose number is the same as the DTC number) is displayed for the latest self-diagnostic
result obtained. If the ECM memory was cleared previously, and the 1st trip DTC did not reoccur, the 1st trip
DTC will not be displayed. If a malfunction is detected during the 1st trip, the 1st trip DTC is stored in the ECM
memory. The MI will not light up (two trip detection logic). If the same malfunction is not detected in the 2nd
ON BOARD DIAGNOSTIC SYSTEM
DESCRIPTION
KA24DE (EURO OBD)
Introduction
EC-3049

trip (meeting the required driving pattern), the 1st trip DTC is cleared from the ECM memory. If the same mal-
function is detected in the 2nd trip, both the 1st trip DTC and DTC are stored in the ECM memory and the MI
lights up. In other words, the DTC is stored in the ECM memory and the MI lights up when the same malfunc-
tion occurs in two consecutive trips. If a 1st trip DTC is stored and a non-diagnostic operation is performed
between the 1st and 2nd trips, only the 1st trip DTC will continue to be stored. For malfunctions that blink or
light up the MI during the 1st trip, the DTC and 1st trip DTC are stored in the ECM memory.
Procedures for clearing the DTC and the 1st trip DTC from the ECM memory are described in ªHOW TO
ERASE EMISSION-RELATED DIAGNOSTIC INFORMATIONº. Refer to EC-3060.
For malfunctions in which 1st trip DTCs are displayed, refer to EC-3058. These items are required by legal
regulations to continuously monitor the system/component. In addition, the items monitored non-continuously
are also displayed on CONSULT-II.
1st trip DTC is specified in Mode 7 of ISO 15031-5. 1st trip DTC detection occurs without lighting up the MI
and therefore does not warn the driver of a problem. However, 1st trip DTC detection will not prevent the
vehicle from being tested, for example during Inspection/Maintenance (I/M) tests.
When a 1st trip DTC is detected, check, print out or write down and erase (1st trip) DTC and Freeze Frame
data as specified in ªWork Flowº procedure Step II, refer to page EC-3084. Then perform ªDTC Confirmation
Procedureº or ªOverall Function Checkº to try to duplicate the problem. If the malfunction is duplicated, the
item requires repair.
How to read DTC and 1st Trip DTCNEEC0031S0101DTC and 1st trip DTC can be read by the following methods.
With CONSULT-II
With GST
CONSULT-II or GST (Generic Scan Tool) Examples: P0340 etc.
These DTCs are prescribed by ISO 15031-5.
(CONSULT-II also displays the malfunctioning component or system.)
+1st trip DTC No. is the same as DTC No.
+Output of a DTC indicates a malfunction. However, GST does not indicate whether the malfunction
is still occurring or has occurred in the past and has returned to normal.
CONSULT-II can identify malfunction status as shown below. Therefore, using CONSULT-II (if avail-
able) is recommended.
A sample of CONSULT-II display for DTC is shown below. DTC or 1st trip DTC of a malfunction is displayed
in SELF-DIAGNOSTIC RESULTS mode of CONSULT-II. Time data indicates how many times the vehicle was
driven after the last detection of a DTC.
If the DTC is being detected currently, the time data will be ª0º.
If a 1st trip DTC is stored in the ECM, the time data will be ª[1t]º.
LEC028A
FREEZE FRAME DATA AND 1ST TRIP FREEZE FRAME DATANEEC0031S02The ECM records the driving conditions such as fuel system status, calculated load value, engine coolant
temperature, short term fuel trim, long term fuel trim, engine speed, vehicle speed, throttle valve opening, base
fuel schedule and intake air temperature at the moment a malfunction is detected.
Data which are stored in the ECM memory, along with the 1st trip DTC, are called 1st trip freeze frame data.
The data, stored together with the DTC data, are called freeze frame data and displayed on CONSULT-II or
GST. The 1st trip freeze frame data can only be displayed on the CONSULT-II screen, not on the GST. For
details, see EC-3073.
Only one set of freeze frame data (either 1st trip freeze frame data or freeze frame data) can be stored in the
ON BOARD DIAGNOSTIC SYSTEM
DESCRIPTION
KA24DE (EURO OBD)
Emission-related Diagnostic Information
EC-3050

When all SRT related self-diagnoses show OK results through several different cycles, the SRT will indicate
ªcompleteº at the time the respective self-diagnoses have at least one OK result.
®Case 2 above
If one or more SRT related self-diagnoses showed NG results in 2 consecutive cycles, the SRT will also indi-
cate ªcompleteº.
®Case 3 above
The previous table shows that the minimum number of cycles for setting SRT as ªincompleteº is one (1) for
each self-diagnosis (Case 1 and 2) or two (2) for one self-diagnosis (Case 3). However, in preparation for the
State emissions inspection, it is unnecessary of each self-diagnosis to be executed twice (Case 3) because
of the following reasons;
+The SRT will indicate ªcompleteº at the time the respective self-diagnoses have one (1) OK result.
+The emissions inspection requires ªcompleteº of the SRT only with OK self-diagnosis result.
+When, during SRT driving pattern, 1st trip DTC (NG) is detected prior to ªcompleteº of SRT, the self-diag-
nosis memory must be erased from ECM after repair.
+If the 1st trip DTC is erased, all the SRT will indicate ªincompleteº.
NOTE:
SRT can be set as ªcompleteº together with the DTC(s). Therefore, DTC check must always be carried out
prior to the State emission inspection even though the SRT indicates ªcompleteº.
How to Display SRT CodeNEEC0031S03011.With CONSULT-II
Selecting ªSRT STATUSº in ªDTC CONFIRMATIONº mode with CONSULT-II.
For items whose SRT codes are set, a ªCMPLTº is displayed on the CONSULT-II screen; for items whose
SRT codes are not set, ªINCMPº is displayed.
2.
With GST
Selecting Mode 1 with GST (Generic Scan Tool)
A sample of CONSULT-II display for SRT code is shown below.
ªINCMPº means the self-diagnosis is incomplete and SRT is not set. ªCMPLTº means the self-diagnosis is
complete and SRT is set.
SEC183C
ON BOARD DIAGNOSTIC SYSTEM
DESCRIPTION
KA24DE (EURO OBD)
Emission-related Diagnostic Information
EC-3053

maximum or minimum value and is compared with the test value being monitored.
Items for which these data (test value and test limit) are displayed are the same as SRT code items.
These data (test value and test limit) are specified by Test ID (TID) and Component ID (CID) and can be dis-
played on the GST screen.
X: Applicable Ð: Not applicable
SRT item Self-diagnostic test itemTest value (GST display)
Test limit Application
TID CID
CATALYST Three way catalyst function01H 01H Max. X
02H 81H Min. X
H02SHeated oxygen sensor 109H 04H Max. X
0AH 84H Min. X
0BH 04H Max. X
0CH 04H Max. X
0DH 04H Max. X
Heated oxygen sensor 219H 86H Min. X
1AH 86H Min. X
1BH 06H Max. X
1CH 06H Max. X
HO2S HTRHeated oxygen sensor 1
heater29H 08H Max. X
2AH 88H Min. X
Heated oxygen sensor 2
heater2DH 0AH Max. X
2EH 8AH Min. X
EMISSION-RELATED DIAGNOSTIC INFORMATION ITEMSNEEC0031S05X: Applicable Ð: Not applicable
Items
(CONSULT-II screen terms)DTC*1
SRT codeTest value/
Test limit
(GST only)1st trip DTCReference
page CONSULT-II
GST*3ECM
NO DTC IS DETECTED.
FURTHER TESTING MAY
BE REQUIRED.P0000 0000ÐÐÐÐ
HO2S1 HTR (B1) P0031 0031 X X X*3 EC-3133
HO2S1 HTR (B1) P0032 0032 X X X*3 EC-3133
HO2S2 HTR (B1) P0037 0037 X X X*3 EC-3138
HO2S2 HTR (B1) P0038 0038 X X X*3 EC-3138
MAF SEN/CIRCUIT P0101 0101 Ð Ð X EC-3143
MAF SEN/CIRCUIT P0102*2 0102 Ð Ð Ð EC-3151
MAF SEN/CIRCUIT P0103*2 0103 Ð Ð Ð EC-3151
IAT SEN/CIRCUIT P0112*2 0112 Ð Ð Ð EC-3160
IAT SEN/CIRCUIT P0113*2 0113 Ð Ð Ð EC-3160
ECT SEN/CIRCUIT P0117*2 0117 Ð Ð Ð EC-3165
ECT SEN/CIRCUIT P0118*2 0118 Ð Ð Ð EC-3165
TP SEN/CIRCUIT P0121 0121 Ð Ð X EC-3170
ON BOARD DIAGNOSTIC SYSTEM
DESCRIPTION
KA24DE (EURO OBD)
Emission-related Diagnostic Information
EC-3058

Items
(CONSULT-II screen terms)DTC*1
SRT codeTest value/
Test limit
(GST only)1st trip DTCReference
page CONSULT-II
GST*3ECM
TP SEN/CIRCUIT P0122*2 0122 Ð Ð Ð EC-3182
TP SEN/CIRCUIT P0123*2 0123 Ð Ð Ð EC-3182
IAT SENSOR P0127 0127 Ð Ð X EC-3193
HO2S1 (B1) P0132 0132 X X X*3 EC-3196
HO2S1 (B1) P0133 0133 X X X*3 EC-3202
HO2S1 (B1) P0134 0134 X X X*3 EC-3213
HO2S2 (B1) P0138 0138 X X X*3 EC-3220
HO2S2 (B1) P0139 0139 X X X*3 EC-3227
FUEL SYS-LEAN-B1 P0171 0171 Ð Ð X EC-3237
FUEL SYS-RICH-B1 P0172 0172 Ð Ð X EC-3244
MULTI CYL MISFIRE P0300 0300 Ð Ð X EC-3251
CYL1 MISFIRE P0301 0301 Ð Ð X EC-3251
CYL2 MISFIRE P0302 0302 Ð Ð X EC-3251
CYL3 MISFIRE P0303 0303 Ð Ð X EC-3251
CYL4 MISFIRE P0304 0304 Ð Ð X EC-3251
KNOCK SEN/CIRC-B1 P0327 0327 Ð Ð Ð EC-3260
KNOCK SEN/CIRC-B1 P0328 0328 Ð Ð Ð EC-3260
CKP SEN/CIRCUIT P0335 0335 Ð Ð X EC-3264
CMP SEN/CIRCUIT P0340 0340 Ð Ð X EC-3270
TW CATALYST SYS-B1 P0420 0420 X X X*3 EC-3278
PURG VOLUME CONT/V P0444 0444 Ð Ð X EC-3283
PURG VOLUME CONT/V P0445 0445 Ð Ð X EC-3283
VEH SPEED SEN/CIRC P0500 0500 Ð Ð X EC-3290
ISC/CIRC P0505 0505 Ð Ð X EC-3295
CLOSED TP SW/CIRC P0510 0510 Ð Ð X EC-3301
ECM P0605 0605 Ð Ð X EC-3308
HO2S1 (B1) P1143 1143 X X X*4 EC-3310
HO2S1 (B1) P1144 1144 X X X*4 EC-3317
HO2S2 (B1) P1146 1146 X X X*4 EC-3324
HO2S2 (B1) P1147 1147 X X X*4 EC-3334
ENG OVER TEMP P1217 1217 Ð Ð X EC-3344
CKP SENSOR (COG) P1336 1336 Ð Ð X EC-3349
P-N POS SW/CIRCUIT P1706 1706 Ð Ð X EC-3355
*1: 1st trip DTC No. is the same as DTC No.
*2: When the fail-safe operation occurs, the MI illuminates.
*3: These numbers are prescribed by ISO 15031-6.
*4: These are not displayed with GST.
ON BOARD DIAGNOSTIC SYSTEM
DESCRIPTION
KA24DE (EURO OBD)
Emission-related Diagnostic Information
EC-3059

Actual work procedures are explained using a DTC as an example. Be careful so that not only the DTC, but
all of the data listed above, are cleared from the ECM memory during work procedures.
NVIS (Nissan Vehicle Immobilizer System Ð
NATS)
NEEC1601
SEF515Y
+If the security indicator lights up with the ignition switch in the ªONº position or ªNATS MALFUNC-
TIONº is displayed on ªSELF-DIAG RESULTSº screen, perform self-diagnostic results mode with
CONSULT-II using NATS program card. Refer to ªNVIS (Nissan Vehicle Immobilizer System Ð
NATS)º in EL section.
+Confirm no self-diagnostic results of NVIS (NATS) is displayed before touching ªERASEº in ªSELF-
DIAG RESULTSº mode with CONSULT-II.
+When replacing ECM, initialization of NVIS (NATS) system and registration of all NVIS (NATS) igni-
tion key IDs must be carried out with CONSULT-II using NATS program card.
Therefore, be sure to receive all keys from vehicle owner. Regarding the procedures of NVIS (NATS)
initialization and NVIS (NATS) ignition key ID registration, refer to CONSULT-II operation manual,
IVIS/NVIS.
Malfunction Indicator (MI)
DESCRIPTIONNEEC0032
SAT652J
The MI is located on the instrument panel.
1. The MI will light up when the ignition switch is turned ON without the engine running. This is a bulb check.
+If the MI does not light up, refer to EL section, ªWARNING LAMPSº or see EC-3396.
2. When the engine is started, the MI should go off.
If the MI remains on, the on board diagnostic system has detected an engine system malfunction.
On Board Diagnostic System FunctionNEEC0032S07The on board diagnostic system has the following four functions.
ON BOARD DIAGNOSTIC SYSTEM
DESCRIPTION
KA24DE (EURO OBD)
Emission-related Diagnostic Information
EC-3061

3. Wait 7 seconds, fully depress the accelerator pedal and keep it for approx. 10 seconds until the MI starts
blinking.
4. Fully release the accelerator pedal.
ECM has entered to Diagnostic Test Mode II (Self-diagnostic results).
PBIB0092E
How to Set Diagnostic Test Mode II (Heated Oxygen Sensor 1 Monitor)NEEC0032S08021. Set the ECM in Diagnostic Test Mode II (Self-diagnostic results). Refer to How to Set Diagnostic Test Mode
II (Self-diagnostic Results).
2. Start Engine.
ECM has entered to Diagnostic Test Mode II (Heated oxygen sensor 1 monitor).
ECM will start heated oxygen sensor 1 monitoring from the bank 1 sensor.
How to Erase Diagnostic Test Mode II (Self-diagnostic Results)
NEEC0032S08041. Set ECM in Diagnostic Test Mode II (Self-diagnostic results). Refer to How to Set Diagnostic Test Mode
II (Self-diagnostic Results).
2. Fully depress the accelerator pedal and keep it for more than 10 seconds. The emission-related diagnos-
tic information has been erased from the backup memory in the ECM.
3. Fully release the accelerator pedal, and confirm the DTC 0000 is displayed.
Diagnostic Test Mode I Ð Bulb CheckNEEC0032S09In this mode, the MI on the instrument panel should stay ON. If it remains OFF, check the bulb. Refer to
WARNING LAMPS, EC-3396.
Diagnostic Test Mode I Ð Malfunction WarningNEEC0032S10
MI Condition
ON When the malfunction is detected or the ECM's CPU is malfunctioning.
OFF No malfunction.
+These DTC numbers are clarified in Diagnostic Test Mode II (SELF-DIAGNOSTIC RESULTS)
Diagnostic Test Mode II Ð Self-Diagnostic ResultsNEEC0032S11In this mode, the DTC and 1st trip DTC are indicated by the number of blinks of the MI as shown below.
The DTC and 1st trip DTC are displayed at the same time. If the MI does not illuminate in diagnostic test mode
I (Malfunction warning), all displayed items are 1st trip DTCs. If only one code is displayed when the MI illu-
minates in diagnostic test mode II (SELF-DIAGNOSTIC RESULTS), it is a DTC; if two or more codes are
displayed, they may be either DTCs or 1st trip DTCs. DTC No. is same as that of 1st trip DTC. These uni-
dentified codes can be identified by using the CONSULT-II or GST. A DTC will be used as an example for how
to read a code.
ON BOARD DIAGNOSTIC SYSTEM
DESCRIPTION
KA24DE (EURO OBD)
Malfunction Indicator (MI)
EC-3063

SEC687C
A particular trouble code can be identified by the number of four-digit numeral flashes. The ªzeroº is indicated
by the number of ten flashes. The length of time the 1,000th-digit numeral flashes on and off is 1.2 seconds
consisting of an ON (0.6-second) - OFF (0.6-second) cycle.
The 100th-digit numeral and lower digit numerals consist of a 0.3-second ON and 0.3-second OFF cycle.
A change from one digit numeral to another occurs at an interval of 1.0-second OFF. In other words, the later
numeral appears on the display 1.3 seconds after the former numeral has disappeared.
A change from one trouble code to another occurs at an interval of 1.8-second OFF.
In this way, all the detected malfunctions are classified by their DTC numbers. The DTC ª0000º refers to no
malfunction. (See ªTROUBLE DIAGNOSIS Ð INDEXº, EC-3009.)
How to Erase Diagnostic Test Mode II (Self-diagnostic Results)
NEEC0032S1101The DTC can be erased from the back up memory in the ECM by depressing accelerator pedal. Refer to How
to Switch Diagnostic Test Mode.
+If the battery is disconnected, the DTC will be lost from the backup memory after approx 24 hours.
+Be careful not to erase the stored memory before starting trouble diagnoses.
Diagnostic Test Mode II Ð Heated Oxygen Sensor 1 MonitorNEEC0032S12In this mode, the MI displays the condition of the fuel mixture (lean or rich) which is monitored by the heated
oxygen sensor 1.
MI Fuel mixture condition in the exhaust gas Air fuel ratio feedback control condition
ON Lean
Closed loop system
OFF Rich
*Remains ON or OFF Any condition Open loop system
*: Maintains conditions just before switching to open loop.
To check the heated oxygen sensor 1 function, start engine in the Diagnostic Test Mode II and warm it up until
engine coolant temperature indicator points to the middle of the gauge.
Next run engine at about 2,000 rpm for about 2 minutes under no-load conditions. Then make sure that the
MI comes ON more than 5 times within 10 seconds with engine running at 2,000 rpm under no-load.
OBD System Operation ChartNEEC0033RELATIONSHIP BETWEEN MI, DTC, 1ST TRIP DTC AND DETECTABLE ITEMSNEEC0033S01+When a malfunction is detected for the first time, the 1st trip DTC and the 1st trip freeze frame data are
stored in the ECM memory.
+When the same malfunction is detected in two consecutive trips, the DTC and the freeze frame data are
stored in the ECM memory, and the MI will come on. For details, refer to ªTwo Trip Detection Logicº on
EC-3049.
ON BOARD DIAGNOSTIC SYSTEM
DESCRIPTION
KA24DE (EURO OBD)
Malfunction Indicator (MI)
EC-3064