ENGINE CONTROL SYSTEM (J08E)4–1038
CHECKLIST: P2149
DTC: P2149
Fuel injector driver circuit 2 - circuit
(circuit open)
Inspection procedure
Step Action Description Judgement
Check
(Yes/No)
Yes No
1
Inspect the
injector con-
nector
Check the connection of the injec-
tor connector (Looseness and
poor contact).
Failure found:
Go to YES.
No failure
found: Go to
NO.
Connect
securely,
repair if
needed.
Perform "After-
inspection
work" of
INFORMA-
TION section.
Go to step 2.
2
Inspect the
injector power
supply
Connect the signal check harness
to the engine ECU and measure
the voltage between the terminals
of the engine ECU (signal check
harness) and ground.
<Tester connections>
Engine ECU (signal check har-
ness)
IJ2+(E18) – Ground
I2+S(E38) – Ground
<Standard values>
At least 3/4 of battery voltage
The measure-
ments meet
the standard
value: Go to
YES.
The measure-
ments do not
meet the stan-
dard value: Go
to NO.
Go to step 3. Go to step 7.
3
Inspect the
injector wire
harness power
supply (engine
ECU – injec-
tor linked-up
connector)
Measure the voltage between
each terminal in the injector
linked-up connector (ECU side)
and ground.
<Tester connections>
injector linked-up connector (ECU
side)
#4 injector: 7 – Ground
#5 injector: 2 – Ground
#6 injector: 10 – Ground
<Standard values>
8 V or less
The measure-
ments meet
the standard
value: Go to
YES.
The measure-
ments do not
meet the stan-
dard value: Go
to NO.
Go to step 4.
Repair or
replace the
harness.
Perform "After-
inspection
work" of
INFORMA-
TION section.
4
Inspect for
short-circuit of
injector wire
harness
(between
injector linked-
up connector
and injector
harness con-
nector)
Disconnect the injector harness
connector and measure the resis-
tance between each terminal in
the injector linked-up connector
(engine side) and ground.
<Tester connections>
injector linked-up connector
(engine side)
#4 injector: 7 – Ground
#5 injector: 2 – Ground
#6 injector: 10 – Ground
<Standard values>
The measure-
ments meet
the standard
value: Go to
YES.
The measure-
ments do not
meet the stan-
dard value: Go
to NO.
Go to step 5.
Repair or
replace the
harness.
Perform "After-
inspection
work" of
INFORMA-
TION section.
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