MPI <4G9> -
Troubleshooting
13A-114
OK
Check the harness wires between
the crank angle sensor and the
engine-ECU <M/T> or
engine-A/T-ECU <A/T>, crank angle
sensor and the engine control relay,
and the crank angle sensor and
earth. Then, repair if necessary.
OK
Check the trouble symptoms.
OK
Check the harness wire between the
crank angle sensor and the engine
control relay, and repair if necessary.
Check the following connectors:
A-10, B-13
NG
Repair
OK
Check the trouble symptoms.
NG
Replace the engine-ECU <M/T> or
engine-A/T-ECU <A/T>.
(3) NG
OK
Use an analyzer to measure the
output waveform at the crank angle
sensor connector A-84.
D
Use the test harness (MB991658)
to connect the connector, and
measure at the pick-up harness
side.
D
Engine: Idling
D
The voltage between terminal 3
and earth
OK:
A normal waveform should
be displayed as described
on P.13A-166 (Inspection
Procedure Using an Ana-
lyzer). Its maximum value
should be 4.8 V or more,
and its minimum value
should be 0.6 V or less
with no noise in waveform.
NG
Check the crank angle sensor vane.
NG
Replace
OK
Replace the crank angle sensor.
Check the trouble symptoms.
NG
Check the following connectors:
A-84, B-34 <M/T>, B-94 <A/T>
NG
Repair
NG
Replace the engine-ECU <M/T> or
engine-A/T-ECU <A/T>.
OK
Check the harness wire between the
crank angle sensor and the
engine-ECU <M/T> or
engine-A/T-ECU <A/T>, and repair if
necessary.
OK
Measure at the crank angle sensor
connector A-84.
D
Disconnect the connector and
measure at the harness side.
(1) The resistance between terminal
1 and earth
OK:
2
W
or less
(2) The voltage between terminal 3
and earth
(Ignition switch: ON)
OK:
4.8 - 5.2 V
(3) The voltage between terminal 2
and earth
(Ignition switch: ON)
OK:
System voltage
(1) NG
Check the harness between the
crank angle sensor and earth, and
repair if necessary.
NG
Repair
NG
Check the following connector:
B-34 <M/T>, B-94 <A/T>
NG
Repair
(2) NG
Measure at engine-ECU <M/T> or
engine-A/T-ECU <A/T> connector
B-34 <M/T>, B-94 <A/T>.
D
Measure the voltage at the
engine-ECU <M/T> or
engine-A/T-ECU <A/T> terminal.
D
Disconnect the connector A-84
D
Ignition switch: ON
D
The voltage between terminal 89
<M/T>, 45 <A/T> and earth
OK:
4.8 - 5.2 V
OK
Check the following connector:
B-34 <M/T>, B-94 <A/T>
OK
Check the harness wire between the
crank angle sensor and the
engine-ECU <M/T> or
engine-A/T-ECU <A/T>.
NG
Repair
From the previous page
Содержание Colt 2000
Страница 7: ...11A 1 ENGINE CONTENTS ENGINE 4G1 11A ENGINE 4G9 11B ...
Страница 30: ...NOTES ...
Страница 221: ...23 1 AUTOMATIC TRANSMISSION CONTENTS GENERAL 2 Outline of Changes 2 TROUBLESHOOTING 2 ...