E N G I N E M ECHANICAL
-
Turbocharger Electrical System Diagnosis ( 1 2H�Tl
EM - ' 9
TU RBO C H A R G E R E L ECTRICAL SYSTEM D IA G N O S I S [ 1 2 H - TJ
Troubleshooting of Turboc harger I n dicator Light and Warning Light Operation
Do both green indicator light and amber
���
:
:
dli
;
:�
I
�
)hl when ignition switch
Check
10'
,ho"
and repair as
necessary
YES
Are indicator and warning lights out during
engine idle?
lights stay on
charge warning
tight ou t ?
Green light stays on
C heck
CHARGE
and
ENGINE
fuses
OK
charge warning
light out ?
Faulty combination
meter
NO
Faulty charging
system
Check for open CIlGUlt In wire harnes.s between
low pressure switch and tachometer
Amber lighl comes on
Check for open circuil in wire harness between high pressure switch
and tachometer and check for ground connection o f switch.
YES
Does green indicator light come on when
0.1 4
kg/cm2 (2.0 psi.
1 3.7
kPal pressure is
applied to both pressure switches )
Blown
NO
OK
O K
O K
pressure switch and lachometer.
Amber light comes on
and reparr as
Check lor 'hort
necessary
Faulty charging
system
Faulty low pressure
swit ch
Fauhy high pressure
switch
Faulty low pressure
switch
Does green indicator light come on when 1 .09 kg/cm2
NO
Fauhy high pressure
YES
Does amber illdicator light come on when
1
.09
kg/cm�
( 1 5.5
psi. 1 06.9 kPal pressure applied to both switche s ?
N O
Check for ShOrl Clfcuit in wire harness between high
pressure switch and tachometer.
YES
T U rbOCharger indiCator light and warning light
o eration okay.
Faulty combination
meter
Faulty
high
pressure
SWitch
Содержание 12H-T
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