Toyota Celica 1993 AT200 series Repair Manual page 601

8R.86
BRAKE SYSTEM _ ANTI-LOCK BRAKE SYSTEM (ABS)
B R
ffill
(qb6
RearSido
F r o n t S i d o
D E C E L E R A T I O N S E N S O R O P E R A T I O N
D I A G N O S I S S Y S T E M
P R E C A U T I O N
W h i l e c h e c k i n g t h e d o c e l e r a t i o n s e n s o r o p e r a t i n g d i -
agnosis system, the Anti-lock Brake System does
not work and braka system works as normal brake
svstom.
D E C E L E R A T I O N
S E N S O R I N S P E C T I O N
C H E C K O F D E C E L E R A T I O N S E N S O R O U T P U T
(a) Connect 3 dry batteries of 1.5V in series.
(b) Connect VGS terminal to the battorios' positive (*)
t e r m i n a l , a n d G G N D t e r m i n a l t o t h e b a t t e r i e s ' n e g a t i v e
(-) terminal, apply tension of about 4.5V between
V G S - G G N O t e r m i n a l s .
( c ) C h e c k t h e o u t p u t t e n s i o n o f G L I a n d G L 2 t e m i n a l s
H I N T :
o
lf leaned largely, the sensor may show the wrong
v a t u e .
.
lf droppsd, the sensor should be replaced with a
n6w on€.
.
The sensor removed from the vehicle should not
be placed upsids down.
Symbols
Condition
Standard Valu6
Hofizontal about 2.3V
G L I
Lgan lorward
0-about 2.3V
Lean raarward
6bout 2.3V -4,5V
Horirontal 6bout 2.3V
Lorn torwsrd
about 2.3V -4.5V
LSan roarw6ro
0 - a b o u t 2 . 3 V