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Troublsshooting
IAB CONTROL
DIAPHRAGM
Inapection ot IAB Control System.
Chack {or vacuum at idle:
1. Stan the engine and allow it
to idle.
2. Romove the vacuum hose from
the IAB control diaphragm and
connect vacuum gauge to the
nose,
Check to. vacuum at IAB vacuum
ttnl;
Remove No. 13 vacuum hose from
the IAB vacuum tank, then check
f o r v a c u u m a t t h e I A B v a c u u m
tank.
Repair th€ blockage or vacuum
l6ak between the IAB vacuum
tenk 6nd the intake manifold.
Check for an open in the wire
llAB SOL line):
1. Turn the ignition switch OFF.
2 . D i s c o n n e c t t h e I A B c o n t r o l
solenoid valve 2P connector.
3. Turn the ignition switch ON (ll).
4. Measure vohage between the
IAB control solenoid valve 2P
connector terminals No, 1 and
N o . 2 .
ls there battery voltage?
Chack for rn op€n or 3hort in the
wire (lAB SOL line):
Measuro voltage between body
g r o u n d a n d t h e I A B c o n t r o l
solenoid valve 2P connector termi-
nai No. 1.
IAB SOL
(RED/BLUI
rt
./;\
I
r
I - T D
, 2 F - '
Y
\.\/
|
]
I
GND
(BLKI
Wire side ot female terminals
IAB CONTROL SOLENOID
VALVE 2P CONNECTOR {C134)
IAB SOL
IRED/BLU)
(cont'd)
1 1 - 1 3 5
(To page I'l-136)
( T o p a g e 1 1 . 1 3 6 )
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Table of Contents
Troubleshooting
