2001 NISSAN ALMERA p0325

On Board Diagnosis Logic.......................................252
DTC Confirmation Procedure ..................................253
Wiring Diagram ........................................................254
Diagnostic Procedure ..............................................256
Component Inspection .............................................257
DTC P0137 HEATED OXYGEN SENSOR 2
(REAR) (MIN. VOLTAGE MONITORING)...................258
Component Description ...........................................258
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................258
ECM Terminals and Reference Value .....................258
On Board Diagnosis Logic.......................................258
DTC Confirmation Procedure ..................................259
Overall Function Check ...........................................260
Wiring Diagram ........................................................261
Diagnostic Procedure ..............................................263
Component Inspection .............................................265
DTC P0138 HEATED OXYGEN SENSOR 2
(REAR) (MAX. VOLTAGE MONITORING).................267
Component Description ...........................................267
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................267
ECM Terminals and Reference Value .....................267
On Board Diagnosis Logic.......................................267
DTC Confirmation Procedure ..................................268
Overall Function Check ...........................................269
Wiring Diagram ........................................................270
Diagnostic Procedure ..............................................272
Component Inspection .............................................273
DTC P0139 HEATED OXYGEN SENSOR 2
(REAR).........................................................................275
Component Description ...........................................275
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................275
ECM Terminals and Reference Value .....................275
On Board Diagnosis Logic.......................................275
DTC Confirmation Procedure ..................................276
Overall Function Check ...........................................277
Wiring Diagram ........................................................278
Diagnostic Procedure ..............................................280
Component Inspection .............................................282
DTC P0140 HEATED OXYGEN SENSOR 2
(REAR) (HIGH VOLTAGE)..........................................284
Component Description ...........................................284
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................284
ECM Terminals and Reference Value .....................284
On Board Diagnosis Logic.......................................284
DTC Confirmation Procedure ..................................285
Overall Function Check ...........................................285
Wiring Diagram ........................................................286
Diagnostic Procedure ..............................................288Component Inspection .............................................289
DTC P0141 HEATED OXYGEN SENSOR 2
HEATER (REAR).........................................................291
Description ...............................................................291
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................291
ECM Terminals and Reference Value .....................291
On Board Diagnosis Logic.......................................292
DTC Confirmation Procedure ..................................292
Wiring Diagram ........................................................293
Diagnostic Procedure ..............................................295
Component Inspection .............................................296
DTC P0171 FUEL INJECTION SYSTEM
FUNCTION (LEAN SIDE)............................................297
On Board Diagnosis Logic.......................................297
DTC Confirmation Procedure ..................................297
Wiring Diagram ........................................................299
Diagnostic Procedure ..............................................301
DTC P0172 FUEL INJECTION SYSTEM
FUNCTION (RICH SIDE).............................................305
On Board Diagnosis Logic.......................................305
DTC Confirmation Procedure ..................................305
Wiring Diagram ........................................................307
Diagnostic Procedure ..............................................309
DTC P0180 FUEL TANK TEMPERATURE
SENSOR (WHERE FITTED)........................................313
Component Description ...........................................313
On Board Diagnosis Logic.......................................313
DTC Confirmation Procedure ..................................313
Wiring Diagram ........................................................315
Diagnostic Procedure ..............................................316
Component Inspection .............................................317
DTC P0300 - P0304 NO.4-1CYLINDER
MISFIRE, MULTIPLE CYLINDER MISFIRE...............318
On Board Diagnosis Logic.......................................318
DTC Confirmation Procedure ..................................318
Diagnostic Procedure ..............................................319
DTC P0325 KNOCK SENSOR (KS)...........................324
Component Description ...........................................324
ECM Terminals and Reference Value .....................324
On Board Diagnosis Logic.......................................324
DTC Confirmation Procedure ..................................324
Wiring Diagram ........................................................325
Diagnostic Procedure ..............................................326
Component Inspection .............................................327
DTC P0335 CRANKSHAFT POSITION SENSOR
(POS)............................................................................328
Component Description ...........................................328
ECM Terminals and Reference Value .....................328
On Board Diagnosis Logic.......................................329
DTC Confirmation Procedure ..................................329
Wiring Diagram ........................................................330
CONTENTS(Cont'd)
EC-3

Items
(CONSULT-II screen terms)DTC*6
Reference page
CONSULT-II
GST*2ECM*1*7
HO2S1 (B1) P0131 0131 EC-224
HO2S1 (B1) P0132 0132 EC-230
HO2S1 (B1) P0133 0133 EC-236
HO2S1 (B1) P0134 0134 EC-245
HO2S2 (B1) P0137 0137 EC-258
HO2S2 (B1) P0138 0138 EC-267
HO2S2 (B1) P0139 0139 EC-275
HO2S2 (B1) P0140 0140 EC-284
HO2S2 HTR (B1) P0141 0141 EC-291
IACV/AAC VLV/CIRC P0505 0505 EC-376
INT/V TIM V/CIR-B1 P1111 1111EC-393
KNOCK SEN/CIRC-B1 P0325 0325 EC-324
L/PRESS SOL/CIRC P0745 0745 AT-239
MAF SEN/CIRCUIT*3 P0100 0100 EC-187
MULTI CYL MISFIRE P0300 0300 EC-318
NATS MALFUNCTION P1610 - P1615 1610 - 1615 EL-430
NO DTC IS DETECTED.
FURTHER TESTING MAYBE REQUIREDÐ 0000 Ð
NO DTC IS DETECTED.
FURTHER TESTING MAYBE REQUIREDÐ Flashing*5 EC-75
O/R CLTCH SOL/CIRC P1760 1760 AT-268
PNP SW/CIRC P0705 0705 AT-183
P-N POS SW/CIRCUIT P1706 1706 EC-437
PURG VOLUME CONT/V P0443 0443 EC-364
SFT SOL A/CIRC P0750 0750 AT-246
SFT SOL B/CIRC P0755 0755 AT-252
SWRL CONT SOL/V*7 P1131 1131 EC-399
TCC SOLENOID/CIRC P0740 0740 AT-233
THRTL POS SEN/CIRC*3 P0120 0120 EC-207
TP SEN/CIRC A/T P1705 1705 AT-258
TW CATALYST SYS-B1 P0420 0420 EC-359
VEH SPD SEN/CIR AT P0720 0720 AT-195
VEH SPEED SEN/CIRC*4 P0500 0500 EC-370
*1: In Diagnostic Test Mode II (Self-diagnostic results). These numbers are controlled by NISSAN.
*2: These numbers are prescribed by ISO 15031-6.
*3: When the fail-safe operation occurs, the MI illuminates.
*4: The MI illuminates when the ªRevolution sensor signalº and the ªVehicle speed sensor signalº meet the fail-safe condition at the
same time.
*5: While engine is running.
*6: 1st trip DTC No. is the same as DTC No.
TROUBLE DIAGNOSIS Ð INDEXQG
Alphabetical & P No. Index for DTC (Cont'd)
EC-11

*7: If so equipped
P No. Index for DTCNJEC0001S0302
DTC*6
Items
(CONSULT-II screen terms)Reference page
CONSULT-II
GST*2ECM*1*7
Ð Ð Unable to access ECM EC-154
Ð Flashing*5NO DTC IS DETECTED.
FURTHER TESTING MAYBE REQUIRED.EC-75
Ð 0000NO DTC IS DETECTED.
FURTHER TESTING MAYBE REQUIRED.Ð
P0100 0100 MAF SEN/CIRCUIT*3 EC-187
P0110 0110 AIR TEMP SEN/CIRC EC-194
P0115 0115 COOLANT T SEN/CIRC*3 EC-201
P0120 0120 THRTL POS SEN/CIRC*3 EC-207
P0130 0130 HO2S1 (B1) EC-216
P0131 0131 HO2S1 (B1) EC-224
P0132 0132 HO2S1 (B1) EC-230
P0133 0133 HO2S1 (B1) EC-236
P0134 0134 HO2S1 (B1) EC-245
P0135 0135 HO2S1 HTR (B1) EC-252
P0137 0137 HO2S2 (B1) EC-258
P0138 0138 HO2S2 (B1) EC-267
P0139 0139 HO2S2 (B1) EC-275
P0140 0140 HO2S2 (B1) EC-284
P0141 0141 HO2S2 HTR (B1) EC-291
P0171 0171 FUEL SYS-LEAN/BK1 EC-297
P0172 0172 FUEL SYS-RICH/BK1 EC-305
P0180 0180 FUEL TEMP SEN/CIRC*7 EC-313
P0300 0300 MULTI CYL MISFIRE EC-318
P0301 0301 CYL 1 MISFIRE EC-318
P0302 0302 CYL 2 MISFIRE EC-318
P0303 0303 CYL 3 MISFIRE EC-318
P0304 0304 CYL 4 MISFIRE EC-318
P0325 0325 KNOCK SEN/CIRC-B1 EC-324
P0335 0335 CKP SEN/CIRCUIT EC-328
P0340 0340 CMP SEN/CIRCUIT EC-335
P0400 0400 EGR SYSTEM*7 EC-343
P0403 0403 EGR VOL CON/V CIR*7 EC-352
P0420 0420 TW CATALYST SYS-B1 EC-359
P0443 0443 PURG VOLUME CONT/V EC-364
TROUBLE DIAGNOSIS Ð INDEXQG
Alphabetical & P No. Index for DTC (Cont'd)
EC-12

MODELS WITHOUT EURO-OBD SYSTEMNJEC0001S04Alphabetical Index for DTCNJEC0001S0401
Items
(CONSULT-II screen terms)DTC*6
Reference page
CONSULT-II
GST*2ECM*1
Unable to access ECM Ð Ð EC-154
CKP SEN/CIRCUIT P0335 0335 EC-328
CMP SEN/CIRCUIT P0340 0340 EC-335
COOLANT T SEN/CIRC*3 P0115 0115 EC-201
ENG OVER TEMP P1217 1217 EC-406
HO2S1 (B1) P0130 0130 EC-216
KNOCK SEN/CIRC-B1 P0325 0325 EC-324
MAF SEN/CIRCUIT*3 P0100 0100 EC-187
NATS MALFUNCTION P1610 - P1615 1610 - 1615 EL-430
NO DTC IS DETECTED.
FURTHER TESTING MAYBE REQUIREDÐ 0000 Ð
NO DTC IS DETECTED.
FURTHER TESTING MAYBE REQUIREDÐ Flashing*5 EC-75
THRTL POS SEN/CIRC*3 P0120 0120 EC-207
VEH SPEED SEN/CIRC*4 P0500 0500 EC-370
*1: In Diagnostic Test Mode II (Self-diagnostic results) (If so equipped). These numbers are controlled by NISSAN.
*2: These numbers are prescribed by ISO 15031-6.
*3: When the fail-safe operation occurs, the MI illuminates.
*4: The MI illuminates when the ªRevolution sensor signalº and the ªVehicle speed sensor signalº meet the fail-safe condition at the
same time.
*5: While engine is running.
*6: 1st trip DTC No. is the same as DTC No.
P No. Index for DTCNJEC0001S0402
DTC*6
Items
(CONSULT-II screen terms)Reference page
CONSULT-II
GST*2ECM*1
Ð Ð Unable to access ECM EC-154
Ð Flashing*5NO DTC IS DETECTED.
FURTHER TESTING MAYBE REQUIRED.EC-75
Ð 0000NO DTC IS DETECTED.
FURTHER TESTING MAYBE REQUIRED.Ð
P0100 0100 MAF SEN/CIRCUIT*3 EC-187
P0115 0115 COOLANT T SEN/CIRC*3 EC-201
P0120 0120 THRTL POS SEN/CIRC*3 EC-207
P0130 0130 HO2S1 (B1) EC-216
P0325 0325 KNOCK SEN/CIRC-B1 EC-324
P0335 0335 CKP SEN/CIRCUIT EC-328
P0340 0340 CMP SEN/CIRCUIT EC-335
P0500 0500 VEH SPEED SEN/CIRC*4 EC-370
TROUBLE DIAGNOSIS Ð INDEXQG
Alphabetical & P No. Index for DTC (Cont'd)
EC-14

Items
(CONSULT-II screen terms)DTC*1 SRT codeTest value/Test
limit
(GST only)1st trip DTC*1 Reference page
HO2S2 (B1) P0140 X X X*2 EC-284
HO2S2 HTR (B1) P0141 X X X*2 EC-291
FUEL SYS-LEAN/BK1 P0171 Ð Ð X EC-297
FUEL SYS-RICH/BK1 P0172 Ð Ð X EC-305
FUEL TEMP SEN/CIRC*3 P0180 Ð Ð X EC-313
MULTI CYL MISFIRE P0300 Ð Ð X EC-318
CYL 1 MISFIRE P0301 Ð Ð X EC-318
CYL 2 MISFIRE P0302 Ð Ð X EC-318
CYL 3 MISFIRE P0303 Ð Ð X EC-318
CYL 4 MISFIRE P0304 Ð Ð X EC-318
KNOCK SEN/CIRC-B1 P0325 Ð Ð Ð EC-324
CKP SEN/CIRCUIT (POS) P0335 Ð Ð X EC-328
CMP SEN/CIRCUIT (PHS) P0340 Ð Ð X EC-335
EGR SYSTEM*3 P0400 X X X*2 EC-343
EGR VOL CONT/V CIRC*3 P0403 Ð Ð X EC-352
TW CATALYST SYS-B1 P0420 X X X*2 EC-359
PURG VOLUME CONT/V P0443 Ð Ð X EC-364
VEH SPEED SEN/CIRC P0500 Ð Ð X EC-370
IACV/AAC VLV/CIRC P0505 Ð Ð X EC-376
CLOSED TP SW/CIRC*3 P0510 Ð Ð X EC-385
ECM P0605 Ð Ð X EC-391
PNP SW/CIRC P0705 Ð Ð XRefer to AT sec-
tion.
ATF TEMP SEN/CIRC P0710 Ð Ð XRefer to AT sec-
tion.
VEH SPD SEN/CIR AT P0720 Ð Ð XRefer to AT sec-
tion.
ENGINE SPEED SIG P0725 Ð Ð XRefer to AT sec-
tion.
A/T 1ST GR FNCTN P0731 Ð Ð XRefer to AT sec-
tion.
A/T 2ND GR FNCTN P0732 Ð Ð XRefer to AT sec-
tion.
A/T 3RD GR FNCTN P0733 Ð Ð XRefer to AT sec-
tion.
A/T 4TH GR FNCTN P0734 Ð Ð XRefer to AT sec-
tion.
TCC SOLENOID/CIRC P0740 Ð Ð XRefer to AT sec-
tion.
L/PRESS SOL/CIRC P0745 Ð Ð XRefer to AT sec-
tion.
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTIONQG
Emission-related Diagnostic Information (Cont'd)
EC-69

DTC Inspection Priority ChartNJEC0039If some DTCs are displayed at the same time, perform inspections one by one based on the following prior-
ity chart.
Priority Detected items (DTC)
1+P0100 Mass air flow sensor
+P0110 Intake air temperature sensor
+P0115 Engine coolant temperature sensor
+P0120 Throttle position sensor
+P0180 Fuel tank temperature sensor*1
+P0325 Knock sensor
+P0340 Camshaft position sensor (PHASE) circuit
+P0403 EGR volume control valve*1
+P0500 Vehicle speed sensor
+P0605 ECM
+P0335 Crankshaft position sensor (POS)
+P1605 A/T diagnostic communication line
+P1706 Park/Neutral position switch
2+P0130 - P0134 Heated oxygen sensor 1 (front)
+P0135 Heated oxygen sensor 1 heater (front)
+P0137 - P0140 Heated oxygen sensor 2 (rear)
+P0141 Heated oxygen sensor 2 heater (rear)
+P0443 EVAP canister purge volume control solenoid valve
+P0510 Closed throttle position switch*1
+P0705 - P0725, P0740 - P1760 A/T related sensors, solenoid valves and switches
+P1217 Overheat (Cooling system)
+P1401 EGR temperature sensor*1
3+P0171, P0172 Fuel injection system function
+P0300 - P0304 Misfire
+P0400, P1402 EGR function*1
+P0420 Three way catalyst function
+P0505 IACV-AAC valve
+P0731 - P0734, P0744 A/T function
+P 1111Intake valve timing control
+P1131 Swirl control valve control solenoid*1
*1: If so equipped
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTIONQG
DTC Inspection Priority Chart
EC-153

SEF598K
Component DescriptionNJEC0206The knock sensor is attached to the cylinder block. It senses
engine knocking using a piezoelectric element. A knocking vibration
from the cylinder block is sensed as vibrational pressure. This
pressure is converted into a voltage signal and sent to the ECM.
Freeze frame data will not be stored in the ECM for the knock
sensor. The MI will not light for knock sensor malfunction. The
knock sensor has one trip detection logic.
ECM Terminals and Reference ValueNJEC0207Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
TERMI-
NAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
81 W Knock sensor[Engine is running]
+Idle speed1.0 - 4.0V
On Board Diagnosis LogicNJEC0208
DTC No. Malfunction is detected when ... Check Items (Possible Cause)
P0325
0325+An excessively low or high voltage from the knock sen-
sor is sent to ECM.+Harness or connectors
(The knock sensor circuit is open or shorted.)
+Knock sensor
SEF058Y
DTC Confirmation ProcedureNJEC0209NOTE:
If ªDTC Confirmation Procedureº has been previously conducted,
always turn ignition switch ªOFFº and wait at least 9 seconds
before conducting the next test.
TESTING CONDITION:
Before performing the following procedure, confirm that bat-
tery voltage is more than 10V at idle.
With CONSULT-II
1) Turn ignition switch ªONº and select ªDATA MONITORº mode
with CONSULT-II.
2) Start engine and run it for at least 5 seconds at idle speed.
3) If DTC is detected, go to ªDiagnostic Procedureº, EC-326.
With GST
Follow the procedure ªWith CONSULT-IIº above.
DTC P0325 KNOCK SENSOR (KS)QG
Component Description
EC-324

Wiring DiagramNJEC0210
HEC791
DTC P0325 KNOCK SENSOR (KS)QG
Wiring Diagram
EC-325