Mitsubishi FUEL Manual page 40

13A-40
MUT-II Self-Diag code
Is any diagnosis code other than No.
P0505 output?
No
Check intake air hose and intake
manifold for air intake.
OK
Check the throttle body (around the
throttle valve) for contamination.
OK
Check the idle speed control (ISC)
servo. (Refer to P.13C-95*.)
OK
Check the following connector:
B-10
OK
Measure at the idle control servo
connector B-10.
D Disconnect the connector, and
measure at the harness side.
D Ignition switch: ON
D The voltage between terminal 2
and earth
D The voltage between terminal 5
and earth
OK: System voltage
OK
Measureatengine-ECUconnectorC-34
<M/T> or engine-A/T-ECU connector
C-177 <A/T>.
D Use test harness (MB991709) to
connecttheconnector,andmeasure
at the pick-up harness side.
D The voltage between terminal 4
<M/T> or 14 <A/T> and earth
D The voltage between terminal 5
<M/T> or 15 <A/T> and earth
D The voltage between terminal 17
<M/T> or 28 <A/T> and earth
D The voltage between terminal 18
<M/T> or 29 <A/T> and earth
OK: The voltage changes as fol-
lows for three seconds when
the ignition switch is turned
ON.
(When using a circuit tester)
5 V and 8 V alternates
(When using an analyzer)
1 V or less and system voltage
alternates
OK
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NOTE:
*: Refer to the '97 GALANT Workshop Manual (Pub. No. PWDE9611)
MPI <4G6> -
Troubleshooting
Yes
RefertoP.13A-8, INSPECTIONCHART
FOR DIAGNOSIS CODES.
NG
Repair
NG
Clean around the throttle valve.
(Refer to P.13C-81*.)
NG
Replace
NG
Repair
NG
Check the following connectors:
C-49 <LHD>, C-31
Check the harness wire between the
engine control relay and the idle speed
control servo, and repair if necessary.
NG
Check the following connector:
C-34 <M/T>, C-177 <A/T>
Check the harness wire between the
idle speed control servo and the engine-
ECU <M/T> or engine-A/T-ECU <A/T>.
Replace the engine-ECU <M/T> or en-
gine-A/T-ECU <A/T>.
OK
NG
OK
NG
OK
Repair
Repair