SELF-DIAGNOSIS

Pajero II Workshop Manual 1991 · FUEL · страница 12 из 339 · Открыть оригинал PDF ↗

Текст распознан со скана. Числа и обозначения можно сверить с оригиналом ниже.

ENGINE WARNING LAMP INSPECTION

(1) Check to be sure, when the ignition switch is set to the
"ON"position,thatthelamp illuminatesforabout five
seconds ad then switches OFF

(2)If the lamp does not illuminate, check for damage or dis-
connection of the harness, or for a blown fuse or a failed
light bulb:

The engine control unit monitors the inputloutput
signals (some signals at all times ad the others
under specified conditions) of the engine control
unit;Whenit is noticedthat an irregularity has
continuedforspecifiedtimeOrlongerfrom
whenthe irregularsignalis initiallymonitored,
passinga certain number, the engine control unit
judgesthatanirregularityhasoccurred,
memorizes the malfunction code, and utputs the
signaltotheself-diagnosisoutputterminals
There are13 diagnosis items, includingthenor-
mal stateand the diagnosis resultscan be read
outwithmulti-usetester.Moreover,since
memorization of the malfunction codes is backed
up direrctly by the battery, the diagnosis results
are memorized even if the ignitionkeyis turned
off.Themalfunctioncodeswill,however,be
erasedwhenthe battery terminalor the engine
control unit connector is disconnected.

The malfunction codes are also erased by setting
theignition switch to theONposition and then
sendingthemalfunction-code-erasesignalfrom
the multi-use tester to the engine control unit.
Caution

If the sensor connector is disconnected while
the ignitionswitchis ON,themalfunction
codeismemorized.Inthis instance,either
send themalfunction-code-erase signalfrom
themulti-usetestertotheenginecontrol
unit, the diagnosis memory will be erased:
The13 diagnosis items are provided as follows
and if plural items are activated,theyare all indi-
cated sequentiallyfromthesmallest codenum-
ber.

Caution

Ignition timing adjustment signal malfunction
codeis output when the ignition timingad-
justment terminal line is short-circuited to the
earth: Therefore, the malfunction code is out-
put whenthe ignition timing adjustment ter-
minal is earthed, however, this is notmal-
function:

DIAGNOSIS CHART

Таблица в оригинале

Распознанный текст таблицы — требует сверки с оригиналом

Output f	Diagnosis item	Diag	nosis code	Check item (Remedy)
preerence order		No;	Memory
	Engine control unit			(Replace engine control unit)
	Oxygen sensor	11	Retained	Harness and connector Oxygen sensor Fuel' pressure Injectors (Replace if defective.) Intake air leaks
	Air flow sensor	12	Retained	Harness ad connector (If harness ad connector are normal, replace air flow sensor assembly )
	Intake air temperature sensor	13	Retained	Harness and connector Intake air temperature sensor
	Throttle position sensor	14	Retained	Harness and connector Throttle position sensor Idle position switch

Mitsubishi Motors CorporationFeb_1991

PWJE9086

Оригинальная страница руководства