NISSAN ALMERA N16 2003 Electronic Repair Manual

TROUBLE DIAGNOSIS
EC-71
[QG (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC
1 - 6: The numbers refer to the order of inspection.
(continued on next page)
SYSTEM — ENGINE MECHANICAL & OTHER
Power steering pressure sensor circuit 2 3 3 3 3EC-260
ECM 22333333333EC-265,
EC-268
Intake valve timing control solenoid valve cir-
cuit332 13223 3EC-272
PNP switch circuit 3 33333 3EC-356
Refrigerant pressure sensor circuit 2 3 3 3 3 4EC-387
Electrical load signal circuit 3 3 3 3EC-392
Air conditioner circuit223333333 3 2AT C - 2 9
SYMPTOM
Reference
page
HARD/NO START/RESTART (EXCP. HA)
ENGINE STALL
HESITATION/SURGING/FLAT SPOT
SPARK KNOCK/DETONATION
LACK OF POWER/POOR ACCELERATION
HIGH IDLE/LOW IDLE
ROUGH IDLE/HUNTING
IDLING VIBRATION
SLOW/NO RETURN TO IDLE
OVERHEATS/WATER TEMPERATURE HIGH
EXCESSIVE FUEL CONSUMPTION
EXCESSIVE OIL CONSUMPTION
BATTERY DEAD (UNDER CHARGE)
Warranty symptom code AA AB AC AD AE AF AG AH AJ AK AL AM HA
SYMPTOM
Reference
page
HARD/NO START/RESTART (EXCP. HA)
ENGINE STALL
HESITATION/SURGING/FLAT SPOT
SPARK KNOCK/DETONATION
LACK OF POWER/POOR ACCELERATION
HIGH IDLE/LOW IDLE
ROUGH IDLE/HUNTING
IDLING VIBRATION
SLOW/NO RETURN TO IDLE
OVERHEATS/WATER TEMPERATURE HIGH
EXCESSIVE FUEL CONSUMPTION
EXCESSIVE OIL CONSUMPTION
BATTERY DEAD (UNDER CHARGE)
Warranty symptom code AA AB AC AD AE AF AG AH AJ AK AL AM HA
Fuel Fuel tank
5
5FE-4
Fuel piping 5 5 5 5 5 5 FE-4
Vapor lock—
Valve deposit
555555 5—
Poor fuel (Heavy weight gaso-
line, Low octane)—

EC-72
[QG (WITH EURO-OBD)]
TROUBLE DIAGNOSIS
Air Air duct
55555 5EM-14
Air cleanerEM-14
Air leakage from air duct
(Mass air flow sensor —electric
throttle control actuator)
5555EM-14
Electric throttle control actuatorEM-16
Air leakage from intake manifold/
Collector/GasketEM-16
Cranking Battery
111111 11SC-3
Alternator circuitSC-27
Starter circuit 3 SC-13
Signal plate/Flywheel/Drive plate 6EM-70
PNP switch
4AT- 11 6,
MT-21
Engine Cylinder head
55555 55 5EM-57
Cylinder head gasket 4 3
Cylinder block
66666 66 64
EM-70
Piston
Piston ring
Connecting rod
Bearing
Crankshaft
Va l v e
mecha-
nismTimin g c hain
55555 55 5EM-47
CamshaftEM-32
Intake valve timing controlEM-47
Intake valve
3EM-57
Exhaust valve
Exhaust Exhaust manifold/Tube/Muffler/
Gasket
55555 55 5EM-19
, FE-
26
Three way catalyst
Lubrica-
tionOil pan/Oil strainer/Oil pump/Oil
filter/Oil gallery
55555 55 52EM-22
, LC-
5, LC-9,
LC-4
Oil level (Low)/Filthy oilLC-8 SYMPTOM
Reference
page
HARD/NO START/RESTART (EXCP. HA)
ENGINE STALL
HESITATION/SURGING/FLAT SPOT
SPARK KNOCK/DETONATION
LACK OF POWER/POOR ACCELERATION
HIGH IDLE/LOW IDLE
ROUGH IDLE/HUNTING
IDLING VIBRATION
SLOW/NO RETURN TO IDLE
OVERHEATS/WATER TEMPERATURE HIGH
EXCESSIVE FUEL CONSUMPTION
EXCESSIVE OIL CONSUMPTION
BATTERY DEAD (UNDER CHARGE)
Warranty symptom code AA AB AC AD AE AF AG AH AJ AK AL AM HA

TROUBLE DIAGNOSIS
EC-73
[QG (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC
1 - 6: The numbers refer to the order of inspection.Cooling Radiator/Hose/Radiator filler cap
55555 55 25LC-12
Thermostat 5 LC-15
Water pumpLC-14
Water galleryLC-12
Cooling fan 5 LC-17
Coolant level (low)/Contaminated
coolantLC-17
NATS (Nissan Anti-Theft System) 1 1EC-49
or
EL-386 SYMPTOM
Reference
page
HARD/NO START/RESTART (EXCP. HA)
ENGINE STALL
HESITATION/SURGING/FLAT SPOT
SPARK KNOCK/DETONATION
LACK OF POWER/POOR ACCELERATION
HIGH IDLE/LOW IDLE
ROUGH IDLE/HUNTING
IDLING VIBRATION
SLOW/NO RETURN TO IDLE
OVERHEATS/WATER TEMPERATURE HIGH
EXCESSIVE FUEL CONSUMPTION
EXCESSIVE OIL CONSUMPTION
BATTERY DEAD (UNDER CHARGE)
Warranty symptom code AA AB AC AD AE AF AG AH AJ AK AL AM HA

EC-74
[QG (WITH EURO-OBD)]
TROUBLE DIAGNOSIS
Engine Control Component Parts Location
EBS00K3Q
MBIB0246E

TROUBLE DIAGNOSIS
EC-75
[QG (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC
MBIB0259E

EC-76
[QG (WITH EURO-OBD)]
TROUBLE DIAGNOSIS
MBIB0260E

TROUBLE DIAGNOSIS
EC-77
[QG (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC
MBIB0261E

EC-78
[QG (WITH EURO-OBD)]
TROUBLE DIAGNOSIS
Circuit Diagram
EBS00K3R
YEC274A

TROUBLE DIAGNOSIS
EC-79
[QG (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC
YEC275A

EC-80
[QG (WITH EURO-OBD)]
TROUBLE DIAGNOSIS
ECM Harness Connector Terminal Layout
EBS00K3S
ECM Terminals and Reference ValueEBS00K3T
PREPARATION
1. ECM is located behind the glove box. For this inspection,
remove glove box.
2. Remove ECM harness protector.
3. When disconnecting ECM harness connector, loosen it with
levers as far as they will go as shown at right.
4. Connect a break-out box (SST) and Y-cable adapter (SST)
between the ECM and ECM harness connector.
●Use extreme care not to touch 2 pins at one time.
●Data is for comparison and may not be exact.
ECM INSPECTION TABLE
Specification data are reference values and are measured between each terminal and ground.
Pulse signal is measured by CONSULT-II.
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.
MBIB0045E
MBIB0258E
MBIB0145E
TERMI-
NAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
1 B ECM ground[Engine is running]
●Idle speedEngine ground