2005 NISSAN X-TRAIL AUTOMATIC

DRIVE BELTS
EM-13
[QR]
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DRIVE BELTSPFP:02117
Checking Drive BeltsEBS00KN7
WARNING:
Be sure to perform this step when the engine is stopped.

Make sure that the indicator (notch on fixed side) of drive belt auto-tensioner is within the possible use
range (between three line notches on moving side).
NOTE:

Check the drive belt auto-tensioner indication when the engine is cold.

When new drive belt is installed, the indicator (notch on fixed side) should be within the range “a” in the
figure.

Visually check entire drive belt for wear, damage or cracks.

If the indicator (notch on fixed side) is out of the possible use range or belt is damaged, replace drive belt.
Tension AdjustmentEBS00KN8
Belt tensioning is not necessary, as it is automatically adjusted by drive belt auto-tensioner.
Removal and InstallationEBS00KN9
REMOVAL
1. Remove splash guard on RH undercover.
2. Hold the hexagonal part in center of drive belt auto-tensioner
pulley with a box wrench securely. Then move the wrench han-
dle in the direction of arrow (loosening direction of tensioner).
CAUTION:

Avoid placing hand in a location where pinching may
occur if the holding tool accidentally comes off.

Do not loosen the hexagonal part in center of drive belt
auto-tensioner pulley (Do not turn it counterclockwise). If
turned counterclockwise, the complete drive belt auto-
tensioner must be replaced as a unit, including the pul-
ley.
3. Insert a rod approximately 6 mm (0.24 in) in diameter such as
short-length screwdriver into the hole of the retaining boss to fix drive belt auto-tensioner pulley.
4. Loosen drive belt from water pump pulley in sequence, and remove it.
PBIC2622E
PBIC2169E

EC-6 Wiring Diagram .....................................................515
Diagnostic Procedure ...........................................517
MI & DATA LINK CONNECTORS ...........................518
Wiring Diagram .....................................................518
EVAPORATIVE EMISSION SYSTEM .....................522
Description ............................................................522
Component Inspection ..........................................525
POSITIVE CRANKCASE VENTILATION ...............527
Description ............................................................527
Component Inspection ..........................................527
AUTOMATIC SPEED CONTROL DEVICE (ASCD) .529
System Description ...............................................529
Component Description ........................................530
SERVICE DATA AND SPECIFICATIONS (SDS) ....531
Fuel Pressure .......................................................531
Idle Speed and Ignition Timing .............................531
Calculated Load Value ..........................................531
Mass Air Flow Sensor ...........................................531
Intake Air Temperature Sensor .............................531
Engine Coolant Temperature Sensor ...................531
Heated Oxygen Sensor 1 Heater .........................531
Heated Oxygen sensor 2 Heater ..........................532
Crankshaft Position Sensor (POS) .......................532
Camshaft Position Sensor (PHASE) ....................532
Throttle Control Motor ...........................................532
Injector ..................................................................532
Fuel Pump ............................................................532
QR (WITHOUT EURO-OBD)
INDEX FOR DTC .....................................................533
Alphabetical Index ................................................533
DTC No. Index ......................................................535
PRECAUTIONS .......................................................537
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ...............................................................537
On Board Diagnostic (OBD) System of Engine ....537
Precaution ............................................................537
Wiring Diagrams and Trouble Diagnosis ..............540
PREPARATION .......................................................541
Special Service Tools ...........................................541
Commercial Service Tools ....................................542
ENGINE CONTROL SYSTEM ................................543
System Diagram ...................................................543
Vacuum Hose Drawing .........................................545
System Chart ........................................................547
Multiport Fuel Injection (MFI) System ...................548
Electronic Ignition (EI) System .............................550
Air Conditioning Cut Control .................................551
Fuel Cut Control (at No Load and High Engine
Speed) ..................................................................551
CAN Communication Unit .....................................552
BASIC SERVICE PROCEDURE .............................558
Idle Speed and Ignition Timing Check ..................558
Accelerator Pedal Released Position Learning ....559
Throttle Valve Closed Position Learning ...............560
Idle Air Volume Learning ......................................560
Fuel Pressure Check ............................................562ON BOARD DIAGNOSTIC (OBD) SYSTEM ...........565
Introduction ...........................................................565
Two Trip Detection Logic .......................................565
Emission-related Diagnostic Information ..............565
NATS (Nissan Anti-theft System) ..........................567
Malfunction Indicator (MI) .....................................568
TROUBLE DIAGNOSIS ..........................................572
Trouble Diagnosis Introduction .............................572
DTC Inspection Priority Chart ...............................576
Fail-Safe Chart ......................................................577
Basic Inspection ....................................................578
Symptom Matrix Chart ..........................................584
Engine Control Component Parts Location ...........588
Circuit Diagram .....................................................593
ECM Harness Connector Terminal Layout ............595
ECM Terminals and Reference Value ...................595
CONSULT-II Function (ENGINE) ..........................604
CONSULT-II Reference Value in Data Monitor Mode
.615
Major Sensor Reference Graph in Data Monitor
Mode .....................................................................618
TROUBLE DIAGNOSIS - SPECIFICATION VALUE .620
Description ............................................................620
Testing Condition ..................................................620
Inspection Procedure ............................................620
Diagnostic Procedure ............................................621
TROUBLE DIAGNOSIS FOR INTERMITTENT INCI-
DENT .......................................................................624
Description ............................................................624
Diagnostic Procedure ............................................624
POWER SUPPLY AND GROUND CIRCUIT ...........625
Wiring Diagram .....................................................625
Diagnostic Procedure ............................................626
Component Inspection ..........................................632
Ground Inspection .................................................632
DTC U1000, U1001 CAN COMMUNICATION LINE .633
Description ............................................................633
On Board Diagnosis Logic ....................................633
DTC Confirmation Procedure ................................633
Wiring Diagram .....................................................634
Diagnostic Procedure ............................................635
DTC P0011 IVT CONTROL .....................................636
Description ............................................................636
CONSULT-II Reference Value in Data Monitor Mode
.637
On Board Diagnosis Logic ....................................637
DTC Confirmation Procedure ................................637
Overall Function Check .........................................639
Wiring Diagram .....................................................640
Diagnostic Procedure ............................................641
Component Inspection ..........................................643
Removal and Installation .......................................643
DTC P0102, P0103 MAF SENSOR .........................644
Component Description ........................................644
CONSULT-II Reference Value in Data Monitor Mode
.644
On Board Diagnosis Logic ....................................644
DTC Confirmation Procedure ................................644
Wiring Diagram .....................................................646

EC-10 CONSULT-II Reference Value in Data Monitor Mode
.946
Wiring Diagram .....................................................947
Diagnostic Procedure ...........................................948
Component Inspection ..........................................953
ASCD INDICATOR ..................................................954
Component Description ........................................954
CONSULT-II Reference Value in Data Monitor Mode
.954
Wiring Diagram .....................................................955
Diagnostic Procedure ...........................................957
MI & DATA LINK CONNECTORS ...........................958
Wiring Diagram .....................................................958
EVAPORATIVE EMISSION SYSTEM .....................962
Description ............................................................962
Component Inspection ..........................................965
POSITIVE CRANKCASE VENTILATION ...............967
Description ............................................................967
Component Inspection ..........................................967
AUTOMATIC SPEED CONTROL DEVICE (ASCD) .969
System Description ...............................................969
Component Description ........................................970
SERVICE DATA AND SPECIFICATIONS (SDS) ....971
Fuel Pressure .......................................................971
Idle Speed and Ignition Timing .............................971
Mass Air Flow Sensor ...........................................971
Intake Air Temperature Sensor .............................971
Engine Coolant Temperature Sensor ...................971
Heated Oxygen Sensor 1 Heater .........................971
Heated Oxygen sensor 2 Heater ..........................971
Crankshaft Position Sensor (POS) .......................971
Camshaft Position Sensor (PHASE) ....................972
Throttle Control Motor ...........................................972
Injector ..................................................................972
Fuel Pump ............................................................972
YD (WITH EURO-OBD)
INDEX FOR DTC .....................................................973
Alphabetical Index ................................................973
DTC No. Index ......................................................976
PRECAUTIONS .......................................................979
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ...............................................................979
On Board Diagnostic (OBD) System of Engine ....979
Precautions ...........................................................979
Wiring Diagrams and Trouble Diagnosis ..............982
PREPARATION .......................................................983
Special Service Tools ...........................................983
Commercial Service Tools ....................................983
ENGINE CONTROL SYSTEM ................................984
System Diagram ...................................................984
Vacuum Hose Drawing .........................................985
System Chart ........................................................986
Fuel Injection Control System ...............................986
Fuel Injection Timing Control System ...................988
Air Conditioning Cut Control .................................988
Fuel Cut Control (At No Load & High Engine Speed) .988Crankcase Ventilation System ..............................989
CAN Communication ............................................989
BASIC SERVICE PROCEDURE .............................994
Fuel Filter ..............................................................994
Fuel Pump Learning Value Clearing .....................994
ON BOARD DIAGNOSTIC (OBD) SYSTEM ...........996
Introduction ...........................................................996
Three Trip Detection Logic and One Trip Detection
Logic .....................................................................996
Emission-related Diagnostic Information ..............996
NATS (Nissan Anti-theft System) .........................1001
Malfunction Indicator (MI) ....................................1001
OBD System Operation Chart ..............................1004
TROUBLE DIAGNOSIS .........................................1007
Trouble Diagnosis Introduction ............................1007
DTC Inspection Priority Chart ..............................1010
Basic Inspection ...................................................1012
Symptom Matrix Chart .........................................1016
Engine Control Component Parts Location ..........1020
Circuit Diagram ....................................................1025
ECM Harness Connector Terminal Layout ...........1027
ECM Terminals And Reference Value ..................1027
CONSULT-II Function (ENGINE) .........................1034
Generic Scan Tool (GST) Function ......................1040
CONSULT-II Reference Value in Data Monitor Mode
1042
Major Sensor Reference Graph in Data Monitor
Mode ....................................................................1043
TROUBLE DIAGNOSIS FOR INTERMITTENT INCI-
DENT ......................................................................1045
Description ...........................................................1045
Diagnostic Procedure ...........................................1045
POWER SUPPLY AND GROUND CIRCUIT ..........1046
Wiring Diagram ....................................................1046
Diagnostic Procedure ...........................................1047
Component Inspection .........................................1054
Ground Inspection ................................................1055
DTC U1000 CAN COMMUNICATION LINE ...........1056
Description ...........................................................1056
On Board Diagnosis Logic ...................................1056
DTC Confirmation Procedure ...............................1056
Wiring Diagram ....................................................1057
Diagnostic Procedure ...........................................1058
DTC P0016 CKP - CMP CORRELATION ..............1059
On Board Diagnosis Logic ...................................1059
DTC Confirmation Procedure ...............................1059
Diagnostic Procedure ...........................................1059
DTC P0045 TC BOOST CONTROL SOLENOID
VALVE .....................................................................1061
Description ...........................................................1061
On Board Diagnosis Logic ...................................1061
DTC Confirmation Procedure ...............................1061
Wiring Diagram ....................................................1062
Diagnostic Procedure ...........................................1063
Component Inspection .........................................1064
DTC P0088 FUEL SYSTEM ...................................1066
On Board Diagnosis Logic ...................................1066
DTC Confirmation Procedure ...............................1066

EC-14 Wiring Diagram ....................................................1294
Diagnostic Procedure ..........................................1296
DTC P2147, P2148 FUEL INJECTOR CIRCUIT ...1297
Component Description .......................................1297
CONSULT-II Reference Value in Data Monitor Mode
1297
On Board Diagnosis Logic ...................................1297
DTC Confirmation Procedure ..............................1297
Wiring Diagram ....................................................1298
Diagnostic Procedure ..........................................1300
Component Inspection .........................................1301
Removal and Installation .....................................1302
DTC P2228, P2229 BARO SENSOR .....................1303
Description ...........................................................1303
On Board Diagnosis Logic ...................................1303
DTC Confirmation Procedure ..............................1303
Diagnostic Procedure ..........................................1304
GLOW CONTROL SYSTEM ..................................1305
Description ...........................................................1305
Wiring Diagram ....................................................1306
Diagnostic Procedure ..........................................1308
Component Inspection .........................................1312
Removal and Installation .....................................1312
BRAKE SWITCH ....................................................1313
Description ...........................................................1313
CONSULT-II Reference Value in Data Monitor Mode
1313
Wiring Diagram ....................................................1314
Diagnostic Procedure ..........................................1316
Component Inspection .........................................1320
PNP SWITCH .........................................................1322
Description ...........................................................1322
CONSULT-II Reference Value in Data Monitor Mode
1322
Wiring Diagram ....................................................1323
Diagnostic Procedure ..........................................1324
PSP SWITCH .........................................................1326
Component Description .......................................1326
CONSULT-II Reference Value in Data Monitor Mode
1326
Wiring Diagram ....................................................1327
Diagnostic Procedure ..........................................1328
Component Inspection .........................................1329
Removal and Installation .....................................1330
FUEL TRANSPORT PUMP ....................................1331
Description ...........................................................1331
Wiring Diagram ....................................................1332
Diagnostic Procedure ..........................................1334
Component Inspection .........................................1338
Removal and Installation .....................................1338
AUTOMATIC SPEED CONTROL DEVICE (ASCD) 1339
System Description ..............................................1339
Component Description .......................................1340
ASCD INDICATOR .................................................1341
Component Description .......................................1341
Wiring Diagram—LHD Models .............................1342
Wiring Diagram—RHD Models ............................1343
Diagnostic Procedure ..........................................1344START SIGNAL ......................................................1345
Wiring Diagram ....................................................1345
Diagnostic Procedure ...........................................1346
MI & DATA LINK CONNECTORS ..........................1348
Wiring Diagram ....................................................1348
SERVICE DATA AND SPECIFICATIONS (SDS) ...1350
General Specifications .........................................1350
Mass Air Flow Sensor ..........................................1350
Engine Coolant Temperature Sensor ...................1350
Fuel Rail Pressure Sensor ...................................1350
Glow Plug .............................................................1350
EGR Volume Control Valve ..................................1350
Crankshaft Position Sensor .................................1350
Camshaft Position Sensor ...................................1350
YD (WITHOUT EURO-OBD)
INDEX FOR DTC ....................................................1351
Alphabetical Index ................................................1351
DTC No. Index .....................................................1353
PRECAUTIONS ......................................................1355
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ..............................................................1355
On Board Diagnostic (OBD) System of Engine ...1355
Precautions ..........................................................1355
Wiring Diagrams and Trouble Diagnosis ..............1358
PREPARATION ......................................................1359
Special Service Tools ...........................................1359
Commercial Service Tools ...................................1359
ENGINE CONTROL SYSTEM ................................1360
System Diagram ..................................................1360
Vacuum Hose Drawing ........................................1361
System Chart .......................................................1362
Fuel Injection Control System ..............................1362
Fuel Injection Timing Control System ..................1364
Air Conditioning Cut Control ................................1364
Fuel Cut Control (At No Load & High Engine Speed) 1364
Crankcase Ventilation System .............................1365
CAN Communication ...........................................1365
BASIC SERVICE PROCEDURE ............................1370
Fuel Filter .............................................................1370
Fuel Pump Learning Value Clearing ....................1370
ON BOARD DIAGNOSTIC (OBD) SYSTEM ..........1372
DTC and MI Detection Logic ................................1372
Diagnostic Trouble Code (DTC) ...........................1372
Freeze Frame Data ..............................................1373
NATS (Nissan Anti-theft System) .........................1373
Malfunction Indicator (MI) ....................................1373
Relationship Between MI, DTC, CONSULT-II and
Driving Patterns ...................................................1376
TROUBLE DIAGNOSIS .........................................1378
Trouble Diagnosis Introduction ............................1378
DTC Inspection Priority Chart ..............................1381
Basic Inspection ...................................................1382
Symptom Matrix Chart .........................................1387
Engine Control Component Parts Location ..........1391
Circuit Diagram ....................................................1396
ECM Harness Connector Terminal Layout ...........1398

EC-18 Diagnostic Procedure ..........................................1638
Component Inspection .........................................1640
Removal and Installation .....................................1640
DTC P2228, P2229 BARO SENSOR .....................1641
Description ...........................................................1641
On Board Diagnosis Logic ...................................1641
DTC Confirmation Procedure ..............................1641
Diagnostic Procedure ..........................................1642
GLOW CONTROL SYSTEM ..................................1643
Description ...........................................................1643
Wiring Diagram ....................................................1644
Diagnostic Procedure ..........................................1646
Component Inspection .........................................1650
Removal and Installation .....................................1650
EGR VOLUME CONTROL SYSTEM .....................1651
Description ...........................................................1651
CONSULT-II Reference Value in Data Monitor Mode
1652
Wiring Diagram ....................................................1653
Diagnostic Procedure ..........................................1655
Component Inspection .........................................1656
Removal and Installation .....................................1658
TC BOOST CONTROL SOLENOID VALVE ..........1659
Description ...........................................................1659
Wiring Diagram ....................................................1660
Diagnostic Procedure ..........................................1661
Component Inspection .........................................1663
Removal and Installation .....................................1663
BRAKE SWITCH ....................................................1664
Description ...........................................................1664
CONSULT-II Reference Value in Data Monitor Mode
1664
Wiring Diagram ....................................................1665
Diagnostic Procedure ..........................................1667
Component Inspection .........................................1671
PNP SWITCH .........................................................1673
Description ...........................................................1673
CONSULT-II Reference Value in Data Monitor Mode
1673Wiring Diagram ....................................................1674
Diagnostic Procedure ...........................................1675
PSP SWITCH ..........................................................1677
Component Description .......................................1677
CONSULT-II Reference Value in Data Monitor Mode
1677
Wiring Diagram ....................................................1678
Diagnostic Procedure ...........................................1679
Component Inspection .........................................1680
Removal and Installation ......................................1681
FUEL TRANSPORT PUMP ....................................1682
Description ...........................................................1682
Wiring Diagram ....................................................1683
Diagnostic Procedure ...........................................1685
Component Inspection .........................................1689
Removal and Installation ......................................1689
AUTOMATIC SPEED CONTROL DEVICE (ASCD) 1690
System Description ..............................................1690
Component Description .......................................1691
ASCD INDICATOR .................................................1692
Component Description .......................................1692
Wiring Diagram—LHD Models .............................1693
Wiring Diagram—RHD Models ............................1694
Diagnostic Procedure ...........................................1695
START SIGNAL ......................................................1696
Wiring Diagram ....................................................1696
Diagnostic Procedure ...........................................1697
MI & DATA LINK CONNECTORS ..........................1699
Wiring Diagram ....................................................1699
SERVICE DATA AND SPECIFICATIONS (SDS) ...1701
General Specifications .........................................1701
Mass Air Flow Sensor ..........................................1701
Engine Coolant Temperature Sensor ...................1701
Fuel Rail Pressure Sensor ...................................1701
Glow Plug .............................................................1701
EGR Volume Control Valve ..................................1701
Crankshaft Position Sensor .................................1701
Camshaft Position Sensor ...................................1701

EC-36
[QR (WITH EURO-OBD)]
ENGINE CONTROL SYSTEM

MIXTURE RATIO FEEDBACK CONTROL (CLOSED LOOP CONTROL)
The mixture ratio feedback system provides the best air-fuel mixture ratio for driveability and emission control.
The three way catalyst (manifold) can then better reduce CO, HC and NOx emissions. This system uses
heated oxygen sensor 1 in the exhaust manifold to monitor whether the engine operation is rich or lean. The
ECM adjusts the injection pulse width according to the sensor voltage signal. For more information about
heated oxygen sensor 1, refer to EC-179, "
DTC P0132 HO2S1" . This maintains the mixture ratio within the
range of stoichiometric (ideal air-fuel mixture).
This stage is referred to as the closed loop control condition.
Heated oxygen sensor 2 is located downstream of the three way catalyst (manifold). Even if the switching
characteristics of heated oxygen sensor 1 shift, the air-fuel ratio is controlled to stoichiometric by the signal
from heated oxygen sensor 2.
Open Loop Control
The open loop system condition refers to when the ECM detects any of the following conditions. Feedback
control stops in order to maintain stabilized fuel combustion.

Deceleration and acceleration

High-load, high-speed operation

Malfunction of heated oxygen sensor 1 or its circuit

Insufficient activation of heated oxygen sensor 1 at low engine coolant temperature

High engine coolant temperature

During warm-up

After shifting from N to D (A/T models)

When starting the engine
MIXTURE RATIO SELF-LEARNING CONTROL
The mixture ratio feedback control system monitors the mixture ratio signal transmitted from heated oxygen
sensor 1. This feedback signal is then sent to the ECM. The ECM controls the basic mixture ratio as close to
the theoretical mixture ratio as possible. However, the basic mixture ratio is not necessarily controlled as orig-
inally designed. Both manufacturing differences (i.e., mass air flow sensor hot wire) and characteristic
changes during operation (i.e., injector clogging) directly affect mixture ratio.
Accordingly, the difference between the basic and theoretical mixture ratios is monitored in this system. This is
then computed in terms of “injection pulse duration” to automatically compensate for the difference between
the two ratios.
“Fuel trim” refers to the feedback compensation value compared against the basic injection duration. Fuel trim
includes short term fuel trim and long term fuel trim.
“Short term fuel trim” is the short-term fuel compensation used to maintain the mixture ratio at its theoretical
value. The signal from heated oxygen sensor 1 indicates whether the mixture ratio is RICH or LEAN compared
to the theoretical value. The signal then triggers a reduction in fuel volume if the mixture ratio is rich, and an
increase in fuel volume if it is lean.
“Long term fuel trim” is overall fuel compensation carried out long-term to compensate for continual deviation
of the short term fuel trim from the central value. Such deviation will occur due to individual engine differences,
wear over time and changes in the usage environment.
PBIB0121E

ON BOARD DIAGNOSTIC (OBD) SYSTEM
EC-57
[QR (WITH EURO-OBD)]
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In most cases the ECM will automatically complete its self-diagnosis cycle during normal usage, and the SRT
status will indicate “CMPLT” for each application system. Once set as “CMPLT”, the SRT status remains
“CMPLT” until the self-diagnosis memory is erased.
Occasionally, certain portions of the self-diagnostic test may not be completed as a result of the customer's
normal driving pattern; the SRT will indicate “INCMP” for these items.
NOTE:
The SRT will also indicate “INCMP” if the self-diagnosis memory is erased for any reason or if the ECM mem-
ory power supply is interrupted for several hours.
If, during the state emissions inspection, the SRT indicates “CMPLT” for all test items, the inspector will con-
tinue with the emissions test. However, if the SRT indicates “INCMP” for one or more of the SRT items the
vehicle is returned to the customer untested.
NOTE:
If MI is “ON” during the state emissions inspection, the vehicle is also returned to the customer untested even
though the SRT indicates “CMPLT” for all test items. Therefore, it is important to check SRT (“CMPLT”) and
DTC (No DTCs) before the inspection.
SRT Item
The table below shows required self-diagnostic items to set the SRT to “CMPLT”.
*: If completion of several SRTs is required, perform driving patterns (DTC confirmation procedure), one by one based on the priority for
models with CONSULT-II.
SRT Set Timing
SRT is set as “CMPLT” after self-diagnosis has been performed one or more times. Completion of SRT is
done regardless of whether the result is OK or NG. The set timing is different between OK and NG results and
is shown in the table below.
SRT item
(CONSULT-II
indication)Performance
Priority*Required self-diagnostic items to set the SRT to “CMPLT” Corresponding DTC No.
CATALYST 2 Three way catalyst function P0420
HO2S 1 Heated oxygen sensor 1 P0133
Heated oxygen sensor 1 P1143
Heated oxygen sensor 1 P1144
Heated oxygen sensor 2 P0139
Heated oxygen sensor 2 P1146
Heated oxygen sensor 2 P1147
HO2S HTR 1 Heated oxygen sensor 1 heater P0031, P0032
Heated oxygen sensor 2 heater P0037, P0038
Self-diagnosis resultExample
DiagnosisIgnition cycle
← ON → OFF ← ON → OFF ← ON → OFF ← ON →
All OK Case 1 P0400 OK (1) — (1) OK (2) — (2)
P0402 OK (1) — (1) — (1) OK (2)
P1402 OK (1) OK (2) — (2) — (2)
SRT of EGR “CMPLT” “CMPLT” “CMPLT” “CMPLT”
Case 2 P0400 OK (1) — (1) — (1) — (1)
P0402 — (0) — (0) OK (1) — (1)
P1402 OK (1) OK (2) — (2) — (2)
SRT of EGR “INCMP” “INCMP” “CMPLT” “CMPLT”

EC-110
[QR (WITH EURO-OBD)]
TROUBLE DIAGNOSIS

*: For QR25DE engine models
NOTE:
Any monitored item that does not match the vehicle being diagnosed is deleted from the display automatically.
DATA MONITOR (SPEC) MODE
Monitored Item
VHCL SPD CUT*
[NON/CUT]

Indicates the vehicle cruise condition.
NON: Vehicle speed is maintained at the
ASCD set speed.
CUT: Vehicle speed increased to excessively
high compared with the ASCD set speed, and
ASCD operation is cut off.
LO SPEED CUT*
[NON/CUT]

Indicates the vehicle cruise condition.
NON: Vehicle speed is maintained at the
ASCD set speed.
CUT: Vehicle speed decreased to excessively
low compared with the ASCD set speed, and
ASCD operation is cut off.
AT OD MONITOR
[ON/OFF]

Indicates [ON/OFF] condition of A/T O/D
according to the input signal from the TCM.
For M/T models, always “OFF” is
displayed.
AT OD CANCEL
[ON/OFF]

Indicates [ON/OFF] condition of A/T O/D can-
cel signal sent from the TCM.
For M/T models, always “OFF” is
displayed.
CRUISE LAMP*
[ON/OFF]

Indicates [ON/OFF] condition of CRUISE lamp
determined by the ECM according to the input
signals.
SET LAMP*
[ON/OFF]

Indicates [ON/OFF] condition of SET lamp
determined by the ECM according to the input
signals.
Voltage [V]

Voltage, frequency, duty cycle or pulse width
measured by the probe.

Only “#” is displayed if item is
unable to be measured.

Figures with “#”s are temporary
ones. They are the same figures
as an actual piece of data which
was just previously measured. Frequency
[msec], [Hz] or [%]
DUTY-HI
DUTY-LOW
PLS WIDTH-HI
PLS WIDTH-LOWMonitored item
[Unit]ECM
INPUT
SIGNALSMAIN
SIG-
NALSDescription Remarks
Monitored item [Unit]ECM
input
signalsMain
signalsDescription Remarks
ENG SPEED [rpm]×

Indicates the engine speed computed
from the signals of the crankshaft posi-
tion sensor (POS) and camshaft position
sensor (PHASE).
MAS A/F SE-B1 [V]××

The signal voltage of the mass air flow
sensor specification is displayed.
When engine is running specification
range is indicated.
B/FUEL SCHDL
[msec]

“Base fuel schedule” indicates the fuel
injection pulse width programmed into
ECM, prior to any learned on board cor-
rection.

When engine is running specification
range is indicated.
A/F ALPHA-B1 [%]×

The mean value of the air-fuel ratio feed-
back correction factor per cycle is indi-
cated.
When engine is running specification
range is indicated.

This data also includes the data for the
air-fuel ratio learning control.