MPI <4G9> -
Troubleshooting
13A-92
INSPECTION PROCEDURE CLASSIFIED BY DIAGNOSIS CODE
Code No. P0100 Air flow sensor system
Probable cause
Range of Check
D
Engine speed: 500 r/min or more
Set Conditions
D
The sensor output frequency is 3.3 Hz or less for four seconds.
D
Malfunction of air flow sensor
D
Open or short circuit in air flow sensor circuit or
loose connector contact
D
Malfunction of engine-ECU <M/T>
D
Malfunction of engine-A/T-ECU <A/T>
OK
Check the trouble symptoms.
NG
Replace the engine-ECU <M/T> or
engine-A/T-ECU <A/T>.
OK
Check the harness between the air
flow sensor and the engine-ECU
<M/T> or engine-A/T-ECU <A/T>.
NG
Repair
(3) NG
Check the following connector:
B-34 <M/T>, B-94 <A/T>
NG
Repair
OK
To the next page
Check the harness between the air
flow sensor and the engine control
relay, and repair if necessary.
(2) NG
OK
Check the trouble symptoms.
NG
Replace the engine-ECU <M/T> or
engine-A/T-ECU <A/T>.
OK
Check the harness between the air
flow sensor and the engine-ECU
<M/T> or engine-A/T-ECU <A/T>.
NG
Repair
NG
Check the following connector:
B-34 <M/T>, B-94 <A/T>
NG
Repair
OK
Check the harness between the air
flow sensor and the engine-ECU
<M/T> or engine-A/T-ECU <A/T>,
and repair if necessary.
NG
Repair
OK
Check the following connector:
B-34 <M/T>, B-94 <A/T>
(1) 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 terminal <A/T>.
D
Ignition switch: ON
D
Voltage between terminal 90
<M/T>, 65 <A/T> and earth
OK:
4.8 - 5.2 V
OK
Measure at air flow sensor connector
A-99.
D
Disconnect the connector and
measure at the harness side.
(1) Voltage between terminal 3 and
earth (Ignition switch: ON)
OK:
4.8 - 5.2 V
(2) Voltage between terminal 4 and
earth (Ignition switch: ON)
OK:
System voltage
(3) Resistance between terminal 5
and earth
OK:
2
W
or less
NG
Check the following connector:
A-99
NG
Repair
MUT-
II
Data list
12 Air flow sensor (Refer to
P.13A-153, DATA LIST
REFERENCE TABLE.)
OK
Transient malfunction
(Refer to GROUP 00 - Points to
Note for Intermittent Malfunctions.)
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 ...