Pajero II Workshop Manual 1991 · Электрооборудование автомобиля · страница 50 из 72 · Открыть оригинал PDF ↗
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A-6There isnoisewhen starting the engine
Таблица в оригинале
Распознанный текст таблицы — требует сверки с оригиналом
| Noise type | Conditions | Cause | Inspection or | replacement |
|---|---|---|---|---|
| Sounds are in parentheses | Noise- preventive part | Mounting place (next page) | ||
| AM, FM Ignition noise (Popping; Snapping; Cracking, Buzzing) | Increasing the engine speed causing the popping sound to Beappears up, and volume decreases when the ignition switch is turned to ACC. | Mainly due to the spark plugs. Due to the engine noise_ | Noise filter Earth cable Noise capacitor | 2 |
| Other electrical components | Noise may appear a5 electrical components become older | Repair or repl al components | ace electric- | |
| Static electricity (Cracking, Crinkling) | Disappears when the vehicle is completely stopped. Severe when the clutch is engaged. | Occurs when parts move for wiring some and contact reason metal parts of the body: | Return parts their proper p | wiring to osition. |
| Various noises are produced depending on the body part of the vehicle: | Due to detachment from the body of the front hood, bumpers exhaust pipe ad mulfler, suspension, etc | Earth parts by Cases where t not elimina single respon are comm area several bo to being imperfe | bonding he problem ted by se to one on, due dy parts ctly earthed |
Caution
Connecting a high tension cable to the noise
filter may destroy the noise filter and should
never be done:
Check that there is no external noise.Since
failure due thismayresult in misdiagnosis
due to inability to identify the noise source,
this operationmust be pertormed:
Noise prevention shouldbe performedby
suppressing strong sources of noise step by
step.
NOTE
Capacitor
Thecapacitor does not pass D.C. current,but
asthenumberofwavesincreaseswhen
passesAC:currentimpedance (resistance
against A.C.) decreases,andcurrentflowis
facilitated.noisesuppressingcondenser
which takes advantage of this property isin-
serted between thepower line for the noise
source and the earth.This suppressed noise
by earthing the noise component (A.C or pulse
signal) to the body of the vehicle_
Coil
The coil passesD.Ccurrent,but impedance
rises asthenumber of waves increases relative
to the AC.current_noise suppressing coil
which takes advantage of thisproperty isin-
serted into the power line for the noise source,
and works by preventing the noise component
from flowingOrradiating out of the line:
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