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OBD0261
Q: DTC P0201
—FUEL INJECTOR CIRCUIT MALFUNCTION -
#1 (INJ1)—
OBD0262
R: DTC P0202
—FUEL INJECTOR CIRCUIT MALFUNCTION -
#2 (INJ2)—
OBD0263
S: DTC P0203
—FUEL INJECTOR CIRCUIT MALFUNCTION -
#3 (INJ3)—
OBD0264
T: DTC P0204
—FUEL INJECTOR CIRCUIT MALFUNCTION -
#4 (INJ4)—
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OBD0265A
DESCRIPTION:
The MFI system employs a gallery type (side-feed type)
fuel injector.
The gallery type fuel injector is installed in the fuel pipe
to allow cooling of the injector by the fuel.
The features of this type of fuel injector are as follows:
1) High heat resistance
2) Low driving noise
3) Easy to service
4) Small size
The fuel injector injects fuel according to the valve open
signal received from the ECM.
The nozzle is attached on the top of the fuel injector. The
needle valve is lifted by the solenoid coil through the
plunger on arrival of the valve open signal.
Since the injection opening, the lifted level of valve and
the regulator-controlled fuel pressure are kept constant,
the amount of fuel to be injected can be controlled only by
the valve open signal from the ECM.
DTC DETECTING CONDITION:
Immediately at fault recognition
TROUBLE SYMPTOM:
Failure of engine to start
Engine stalls.
Erroneous idling
Rough driving
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1.Check output signal from ECM.
2.Check harness.
3.Check harness.
4.Check fuel injector.
5.Check power supply.
CAUTION:
Check or repair only faulty cylinders.
After repair or replacement of faulty parts, conduct
CLEAR MEMORY and INSPECTION MODES.
[T3D0] and [T3E0].>
WIRING DIAGRAM:
LHD model
OBD0137
205
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WIRING DIAGRAM:
RHD model
B2M0447
206
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OBD0712A
1
CHECK OUTPUT SIGNAL FROM ECM.
1) Turn ignition switch to ON.
2) Measure voltage between ECM connector and body on
faulty cylinders.
: Connector & terminal
#1 (B84) No. 2—Body/10 V, or more
#2 (B84) No. 1—Body/10 V, or more
#3 (B84) No. 18—Body/10 V, or more
#4 (B84) No. 17—Body/10 V, or more
: Go to step 2.
: Go to step 3.
OBD0712A
2
CHECK HARNESS.
1) Turn ignition switch to OFF.
2) Disconnect connector from fuel injector on faulty cylin-
der.
3) Turn ignition switch to ON.
4) Measure voltage between ECM connector and body on
faulty cylinders.
: Connector & terminal
#1 (B84) No. 2—Body/10 V, or more
#2 (B84) No. 1—Body/10 V, or more
#3 (B84) No. 18—Body/10 V, or more
#4 (B84) No. 17—Body/10 V, or more
: Repair short circuit of harness between ECM and
fuel injector. After repair, replace ECM.
: Go to next step.
G2M0464
5) Turn ignition switch to OFF.
6) Measure resistance between fuel injector terminals on
faulty cylinder.
: Terminals
No. 1—No. 2/1Ω, or less
: Replace faulty fuel injector and ECM.
: Go to next.
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: Is there poor contact in ECM connector?
: Repair poor contact in ECM connector.
: Replace ECM.
OBD0713A
3
CHECK HARNESS.
1) Turn ignition switch to OFF.
2) Disconnect connector from fuel injector on faulty cylin-
ders.
3) Measure resistance between fuel injector on faulty cyl-
inders and body.
: Connector & terminal
#1 (E5) No. 1—Body/10Ω, or less
#2 (E16) No. 1—Body/10Ω, or less
#3 (E6) No. 1—Body/10Ω, or less
#4 (E17) No. 1—Body/10Ω, or less
: Repair short circuit of harness between fuel injec-
tor and body.
: Go to the next step.
OBD0714A
4) Measure resistance of harness connector between
ECM connector and fuel injector on faulty cylinders.
: Connector & terminal
#1 (B84) No. 2—(E5) No. 1/10Ω, or less
#2 (B84) No. 1—(E16) No. 1/10Ω, or less
#3 (B84) No. 18—(E6) No. 1/10Ω, or less
#4 (B84) No. 17—(E17) No. 1/10Ω, or less
: Repair open circuit of harness between ECM and
fuel injector.
: Go to step 4.
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G2M0464
4
CHECK FUEL INJECTOR.
Measure resistance between fuel injector terminals on
faulty cylinder.
: Terminals
No. 1—No. 2/5—20Ω
: Replace faulty fuel injector.
: Go to step 5.
OBD0715A
5
CHECK POWER SUPPLY.
1) Turn ignition switch to ON.
2) Measure voltage between fuel injector and body on
faulty cylinders.
: Connector & terminal
#1 (E5) No. 2—Body/10 V, or more
#2 (E16) No. 2—Body/10 V, or more
#3 (E6) No. 2—Body/10 V, or more
#4 (E17) No. 2—Body/10 V, or more
: Check and repair the following items.
Open circuit of harness between main relay
and fuel injector for faulty cylinders
Poor contact in main relay connector
Poor contact in fuel injector connector for the
faulty cylinders
: Check for poor contact of all connectors in WIR-
ING DIAGRAM on page 205, 206.
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OBD0277
U: DTC P0301
—CYLINDER 1 MISFIRE DETECTED (MIS
—1)
—
OBD0278
V: DTC P0302
—CYLINDER 2 MISFIRE DETECTED (MIS
—2)
—
OBD0279
W: DTC P0303
—CYLINDER 3 MISFIRE DETECTED (MIS
—3)
—
OBD0280
X: DTC P0304
—CYLINDER 4 MISFIRE DETECTED (MIS
—4)
—
DTC DETECTING CONDITION:
Two consecutive trips with fault
Immediately at fault recognition (A misfire which could
damage catalyst occurs.)
TROUBLE SYMPTOM:
Engine stalls.
Erroneous idling
Rough driving
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