Abs Light Doesn't Illuminate When Ignition Key In “Start” Position - Mitsubishi 1989-1993 GALANT Service Manual

SERVICE BRAKES
ABS warning light does not illuminate when ignition key is in "START" position.
[Explanation]
The ABS ECU uses the IG2 power source which is
t u r n e d o f f i n t h e " S T A R T " p o s i t i o n . T h e ABS
uses the IGl power source which is
warning light
n o t t u r n e d o f f e v e n i n t h e " S T A R T " p o s i t i o n .
Consequently, in the "START" position, power is off
MAIN IGNITION
FUSIBLE
LINK @
Remove and inspect
the hydraulic unit.
With the ignition key in the
"ON" position, does voltage
between body connector
terminal No.8 and ground
indicate the battery voltage?
Is there continuity between ,
body connector terminal
Remove the valve relay. Is
there continuity between
terminal No. 87a and No. 30?
1 4 4 0 6 7 7
TSB Revision
a n d t h e E C U t u r n s t h e v a l v e r e l a y O F F . I f t h e
warning light does not illuminate at this time, there
is
trouble in the warning light circuit on the valve
relay side.
No
Yes
No
. Broken line between HU
HU and warning light is
broken.
and body ground
Valve relay malfunction
Replace valve relay.
I
HU harness malfunction
Replace HU.
I