1989-Mitsu-Factory Manual · mpi system · страница 23 из 48 · Открыть оригинал PDF ↗
(4) Switch ON the ignition switch.
(5) Use the multi-use testerto check the self-diagnosis codes.
(6) After completion of the repair or correction of the problem,
switch OFF the ignition switch; then disconnect the battery
terminals for ten seconds or longer and then, after recon-
necting them, check to be sure that no malfunction code is
displayed by the multi-use tester.
(7) Disconnect the multi-use tester.
INSPECTION PROCEDURE-(USING VOLTMETER)
N,WXG
(1) Connect an analogue voltmeter to the self-diagnosis con- I
nectar.
(2) Turn ignition switch to ON, and indication of engine control
unit memory contents will immediately start. If the system
is in normal condition, pointer of voltmeter indicates nor-
mal pattern. If any abnormality is in memory, the pointer of
voltmeter will deflect, indicating abnormal item as describ-
ed in “Diagnosis Chart”.
After recording the abnormal item, check and repair each
part according to the check items in “Diagnosis Chart”.
(3) If the defective parts have been repaired, disconnect the
negative terminal of battery cable for 10 seconds or more
and connect it again to make sure that the abnormal code
has been erased.
DIAGNOSIS CHART (FAULT TREE)
NI-
| Output preference | Diagnosis item | Malfunction co | de | - Check item (Remedy) | ||
|---|---|---|---|---|---|---|
| order | Output signal pattern | No. | Memory | |||
| 1 | Enline control | :- | - | - | I”,#ace engine control | |
| 2 | Oxygen sensor | y--LL | I’ | Retained | l Harness and connector 0 Oxygen sensor l Fuel pressure 0 injectors (Replace if defective) l Intake air leaks | |
| 3 | Air flow sensor | :n | I2 | Retained | l Harness and connector (If harness and connector are normal, replace air flow sensor assembly.) | |
| 4 | Intake air temperature sensor | J.-LNL H | l3 | Retained | l Harness and connector l Intake air temperature sensor | |
| 5 | Throttle position sensor | :-l-lAm | L | l4 | Retained | l Harness and connector 0 Throttle position sensor l Idle position switch |
| 6 | Engine coolant temperature sensor | Retained | l Harness and connector l Engine coolant temper- ature sensor |
Таблица в оригинале
Оригинальная страница руководства
